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PAPEMP

CAS NUMBER: 130668-24-5

SYNONYM:

Mayoquest 2200; Polyamino Polyether Methylene Phosphonate; polyamino polyéther méthylène phosphonate; Polyamino polyether methylene phosphonate ; polyamino poly éther méthylène phosphonate; poly amino poly éther méthylène phosphonate; polyamino polyéther méthylène phosfonate; polyamino polyéther méthylène phosphonat; C4H6NO3(C4H5NO3)NC4H6NO4; poly-amino poly-ether methylenephosphonic; polyamino poly-ether methylenephosphonic; poly-amino polyether methylenephosphonic; poly-amino poly-ether methylene phosphonic; poly-amino poly-ether methylen phosphonic; Mayoquest 2200; Polyamino Polyether Methylene Phosphonate; polyamino polyéther méthylène phosphonate; Polyamino polyether methylene phosphonate ; polyamino poly éther méthylène phosphonate; poly amino poly éther méthylène phosphonate; polyamino polyéther méthylène phosfonate; polyamino polyéther méthylène phosphonat

Polyamino Polyether Methylene Phosphonic Acid is a new kind of water treatment agent. Polyamino Polyether Methylene Phosphonic Acid has high chelation and dispersion effects, high value of calcium tolerance, and good scale inhibition effects. Polyamino Polyether Methylene Phosphonic Acid is as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system in situations of high hardness, high alkali and high pH value. Polyamino Polyether Methylene Phosphonic Acid inhibits scale formation of calcium carbonate, calcium sulfate and calcium phosphate. Polyamino Polyether Methylene Phosphonic Acid is a new kind of water treatment agent. Polyamino Polyether Methylene Phosphonic Acid has high chelation and dispersion effects, high value of calcium tolerance, and good scale inhibition effects. Polyamino Polyether Methylene Phosphonic Acid can be used as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system in situations of high hardness, high alkali and high pH value. Polyamino Polyether Methylene Phosphonic Acid has excellent scale inhibition ability to calcium carbonate, calcium sulfate and calcium phosphate.
Polyamino Polyether Methylene Phosphonic Acid can efficiently inhibit the formation of silica scale, stabilize metal ions such as Zn, Mn and Fe.

Polyamino Polyether Methylene Phosphonic Acid can be used as scale inhibitor for reverse osmosis system and multistep flash vaporization system in which high salt concentration, high turbidity and high temperature are usually encountered (such as high temperature and high turbidity in coal vaporization system), accessory agent for woven & dyeing (for example, yellow turnback inhibition agent), as alternatives of EDTA, DTPA and NTA. Poly amino polyether methylene phosphonate (Polyamino Polyether Methylene Phosphonic Acid) is a very effective inhibitor in preventing CaCO3 precipitation. The extraordinary affinity of Polyamino Polyether Methylene Phosphonic Acid towards CaCO3 surfaces and its excellent tolerance of calcium materials make this polymer excellent in inhibiting the growth of CaCO3 crystal. Amjad et al. have extensively studied phosphonate-based polymer performance in cold water.
They have studied the effectiveness of phosphate and phosphonate polymers in stabilized and all-organic cooling water treatment facilities.

This study reported that these polymers are capable of performing a dual function. Firstly, they control the thickness of the calcium phosphate and phosphonate membrane on the metal surface. Secondly, they prevent the precipitation of the calcium phosphate and phosphonate salts in the recirculating water. Another study conducted by the same research group demonstrated the performance of sulphonic-acid-containing terpolymer for controlling the growth of calcium phosphonates and carbonate scale. It showed that these polymers improved the control of calcium phosphonate and carbonate in highly stressed cooling water systems Wang et al. also conducted a similar study in which they have reported the inhibition of CaCO3 by a phosphonate-terminated poly(maleic-co-sulfonate) polymeric inhibitor.

Water that is available for domestic and industrial applications typically contains many impurities. These impurities are generally classified in five broad categories: Dissolved inorganic compounds (i.e., carbonates, sulfates, phosphates, and fluorides of calcium, magnesium, barium, and strontium; small amounts of copper [Cu], iron [Fe], and manganese [Mn]); and other substances. Dissolved gases (e.g., oxygen [O2], nitrogen [N2], carbon dioxide [CO2], and hydrogen sulfide [H2S]). Suspended matter (e.g., clay, silt, fat, and oil) Soluble organic compounds (e.g., humic acid, fulvic acid, and tannic acid) Microorganisms (e.g., algae, bacteria, and fungi)
The accumulation of unwanted deposits on equipment surfaces is a phenomenon that occurs in virtually all processes in which untreated water is heated. The deposition of these materials, especially on heat exchanger surfaces in boiler, cooling, geothermal, and distillation systems, can cause a number of operational problems such as plugged pipes and pumps, inefficient use of water treatment chemicals, increased operational costs, lost production due to system downtime, and ultimately heat exchanger failure.

Greater water conservation has been a driver for operating industrial water systems at higher concentration cycles, which increases the potential for deposit buildup on heat exchanger surfaces. Operating industrial water systems under stressed conditions demands a better understanding of the feed and recirculating systems` water chemistry as well as the development of innovative additives and technological approaches for controlling scale, deposit, corrosion, and biofouling. The most promising scale control method among various approaches involves adding substoichiometric dosages, typically a few ppm, of water-soluble additives to the feedwater. Additives commonly used in water treatment formulation fall into two categories: Dissolved inorganic compounds (i.e., carbonates, sulfates, phosphates, and fluorides of calcium, magnesium, barium, and strontium; small amounts of copper [Cu], iron [Fe], and manganese [Mn] ions; and other substances).

Polymeric (e.g., homopolymers of acrylic acid, maleic acid, itaconic acid, aspartic acid, and copolymers containing monomers of different functional groups) Although there are many phosphonates available, three of the most commonly used phosphonates in water treatment formulations are aminotrismethylene phosphonic acid (AMP); 1-hydroxyethylidine, 1,-1 diphosphonic acid (HEDP); and 2-phosphono-butane 1,2,4-tricarboxylic acid (PBTC). However, under certain pH, concentration, and temperature conditions, phosphonates have been shown to precipitate in the presence of calcium ions. The precipitation of calcium phosphonate salts not only creates fouling of heat exchanger and reverse osmosis (RO) membrane surfaces, Polyamino polyether methylene phosphonate also decreases the solution concentration of a phosphonate to such an extent that severe calcium carbonate (CaCO3) scaling can occur.1-2 The focus of this study is to evaluate the performance of polyamino polyether methylene phosphonic acid (Polyamino polyether methylene phosphonate ) as an inhibitor for various scales (e.g., CaCO3, calcium sulfate dihydrate [CaSO4•2H2O], and calcium phosphate [Ca3(PO4)2]) and a stabilization agent for Fe(III) or Fe3+ ions.

All chemicals were obtained from commercial sources. They include AMP, HEDP, PBTC, 2-hydroxyphosphono acetic acid (HPA), Polyamino polyether methylene phosphonate , and polyacrylic acid (PAA). Polyamino polyether methylene phosphonate (Polyamino Polyether Methylene Phosphonic Acid) is very effective in preventing calcium carbonate precipitation at high supersaturation and high pH. The inhibition of calcium carbonate crystallization in the presence of Polyamino Polyether Methylene Phosphonic Acid at both low and high supersaturation was studied and then compared to the inhibitory ability of hydroxyethylidene-1 ,1-diphosphonic acid (HEDP).
Keywords: calcium carbonate inhibition, crystallization kinetics, phosphonates, affinity constants, calcium tolerance.

Detailed procedures for reagents solution preparation; percent inhibition (%I) calculation for calcium sulfate dihydrate (CaSO4•2H2O), CaCO3, Ca3(PO4)2, and Fe3+ stabilization; and instruments used are reported elsewhere.3-6 Table 1 lists the inhibitors tested. There are two points worth noting: a) the gypsum inhibition value increases with increasing inhibitor dosage and b) the inhibition value depends upon the inhibitor architecture. Phosphonates (i.e., HPA, HEDP) containing one (-OH) and one (-PO3H2) group, as shown in Table 1, exhibit poor performance as gypsum inhibitors when compared to AMP (containing three [-PO3H2] groups). For example, %I values obtained for HPA and HEDP at 3.0 ppm dosage are 8 and 12%, respectively, compared to 89% obtained for AMP.

Results on the performance of PBTC and Polyamino polyether methylene phosphonate are also presented in Figure 1. When compared to PBTC, Polyamino polyether methylene phosphonate exhibits excellent performance as a gypsum inhibitor. For example, %I values obtained in the presence of 1.5 ppm PBTC are 18% compared to 95% obtained for Polyamino polyether methylene phosphonate . Based on the data presented in Figure 1, phosphonate performance can be ranked as follows: Polyamino polyether methylene phosphonate > AMP > PBTC > HEDP > HPA. CaCO3 is very often found in scale deposits, both in colloidal and amorphous states and in the form of polymorphs. The presence of relatively high concentrations of calcium and carbonate ions in water, in combination with the inverse solubility of CaCO3, is the main cause for the formation of this deposit. A particular and often complicating feature in the CaCO3 system is the polymorphism. Some of the various CaCO3 polymorphs encountered in aqueous media, in order of decreasing solubility, are calcium carbonate monohydrate, vaterite, aragonite, and calcite. Calcite is the most stable phase thermodynamically, although Polyamino polyether methylene phosphonate is frequently encountered and identified as the sole component of CaCO3 scale formations and may result from the formation of less stable vaterite.

Commonly used inhibitors to control CaCO3 scale formation may be classified in the following broad categories: polyphosphates, polyphosphonates, synthetic polymers, natural polymers, and proprietary formulations. Polyphosphates have been known as efficient threshold inhibitors in the sense that they can inhibit CaCO3 scale formation at substoichiometric levels. They have been widely used despite their main disadvantage, which is hydrolysis of the esoteric P-O bond that yields orthophosphate and, upon further reaction with calcium ions, results in the formation of tenacious Ca3(PO4)2 deposits. Organophosphonates have been shown to be excellent CaCO3 inhibitors. These compounds, however, lead to the formation of calcium phosphonate salts under high hardness conditions. Polyamino polyether methylene phosphonate is interesting to note that Polyamino polyether methylene phosphonate , compared to AMP, HEDP, PBTC, and HPA, has been reported to be more tolerant to Ca ions.

Polyamino polyether methylene phosphonate performs excellently in the condition of high hardness and pH as a new antiscalant and corrosion inhibitor. With high calcium tolerance, Polyamino polyether methylene phosphonate scale inhibition ability is also high, particularly for CaCO3, CaPO4, and CaSO4. Polyamino polyether methylene phosphonate also effectively restrain the Si scale from a formation and stabilize the ions. Such as Mn, and Fe to form chelating compounds. Polyamino polyether methylene phosphonate also has a good tolerance to high temperature, high turbidity, high salt concentration, and high chlorine (Cl- and Br-) concentration. Sometimes Polyamino polyether methylene phosphonate is built with polycarboxylic acid. Polyamino polyether methylene phosphonate can be used as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system in situations of high hardness, high alkali, and high pH value. Polyamino polyether methylene phosphonate can be used as a scale inhibitor for a reverse osmosis system and a multistep flash vaporization system.

IUPAC NAME:

[6-[bis(phosphonomethyl)amino]hexyl-(phosphonomethyl)amino]methylphosphonic acid

TRADE NAME:

AQUACID 114EX

OTHER NAME:

181828-06-8; 35608-40-6

Phosphorus acid is input into the reactor and its pH is adjusted by HCl. Polyetheramine is instilled and the reaction starts while the reactor is heated. Formaldehyde is input a few hours later. The reactor will be further heated and steamed for more hours. The good adaption to different situations enables Polyamino polyether methylene phosphonate widely used in boiler, cooling water system and oilfield reinjection water as antiscalant and corrosion inhibitor. For the same reason, Polyamino polyether methylene phosphonate is also applied in RO and multistep flash system. Recommend dosage is 5-100 ml/L. Unlike other organophosphonates, there is no optimum dosage for Polyamino polyether methylene phosphonate . Higher the dosage, better the effect.

Besides, Polyamino polyether methylene phosphonate works as a nutrient absorber in agriculture. Polyamino polyether methylene phosphonate can also replace those more expensive color transfer inhibitors (eg. yellow turnback inhibitor) like EDTA, NTA, and DTPA in textile dyeing. Polyamino polyether methylene phosphonate is a new kind of water treatment agent. Polyamino polyether methylene phosphonate has high chelation and dispersion effects, high value of calcium tolerance, and good scale inhibition effects. Polyamino polyether methylene phosphonate can be used as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system in situations of high hardness, high alkali and high pH value. Polyamino polyether methylene phosphonate has excellent scale inhibition ability to calcium carbonate, calcium sulfate and calcium phosphate. Polyamino polyether methylene phosphonate can efficiently inhibit the formation of silica scale, stabilize metal ions such as Zn, Mn and Fe.

Polyamino polyether methylene phosphonate can be used as scale inhibitor for reverse osmosis system and multistep flash vaporization system in which high salt concentration, high turbidity and high temperature are usually encountered (such as high temperature and high turbidity in coal vaporization system), accessory agent for woven & dyeing (for example, yellow turnback inhibition agent), as alternatives of EDTA, DTPA and NTA . 200L plastic drum, IBC(1000L), customers` requirement. Storage for twelve months in shady room and dry place. Aquacid 114 EX is a new kind of scale inhibitor for industrial water treatment. Polyamino polyether methylene phosphonate has high chelation and dispersion effect with high value of calcium tolerance and scale inhibition effect. Polyamino polyether methylene phosphonate can be used as scale and corrosion inhibitor in circulating cooling water system and oilfield of high hardness including calcium magnesium and barium sulfate scale inhibitor.

Polyamino polyether methylene phosphonate is stable in aqueous solution under a wide range of pH, temperature and pressure.Polyamino polyether methylene phosphonate widens the operational conditions available with today`s standard technology by allowing operations with hard water at higher pH levels and greater salt concentrations. Polyamino polyether methylene phosphonate Polyamino polyether methylene phosphonate is possible to operate at up to 300X calcite saturation because of its excellent calcium tolerance. As a result Polyamino polyether methylene phosphonate controls up to three times as much calcium carbonate as ATMP or PBTC (operating at up to 100x calcite saturation).

Aquacid 114 EX has excellent scale inhibition ability to calcium carbonate, calcium sulfate and calcium phosphate. Aquacid 114 EX can efficiently inhibit the formation of silica scale,stabilize metal ions such as Zn, Mn and Fe. Polyamino polyether methylene phosphonate effectively chelates metal ions including calcium, magnesium, iron and copper. Aquacid 114 EX can be used as scale inhibitor for reverse osmosissystem and multi-step flash vaporization system in which high saltconcentration, high turbidity and high temperature are usuallyencountered (such as high temperature and high turbidity in coal vaporization system), accessory agent for woven & dyeing (for example, yellow turn back inhibition agent), as alternatives of EDTA, DTPA and NTA .

Polyamino polyether methylene phosphonate is a new kind of water treatment agent. Polyamino polyether methylene phosphonate has high chelation and dispersion effects, high value of calcium tolerance, and good scale inhibition effects. Polyamino polyether methylene phosphonate can be used as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system in situations of high hardness, high alkali and high pH value. Polyamino polyether methylene phosphonate has excellent scale inhibition ability to calcium carbonate, calcium sulfate and calcium phosphate. Polyamino polyether methylene phosphonate can efficiently inhibit the formation of silica scale, stabilize metal ions such as Zn, Mn and Fe. Polyamino polyether methylene phosphonate can be used as scale inhibitor for reverse osmosis system and multistep flash vaporization system in which high salt concentration, high turbidity and high temperature are usually encountered (such as high temperature and high turbidity in coal vaporization system).

Normally In 250kg net Plastic Drum, IBC drum can also be used as required. Storage for ten months in room shady and dry place. The new calcium carbonate inhibitor is PolyAmino PolyEther Methylene Phosphonate2 (Polyamino polyether methylene phosphonate ). One of the particular advantages of the Polyamino polyether methylene phosphonate molecule is its exceptional calcium tolerance (Table 2). Calcium tolerance is a measure of a chemical compound’s ability to remain soluble in the presence of calcium ions (Ca2+) under both high pH and high temperature, such as in geothermal brines. As pH and temperature increases, calcium tolerance decreases rapidly for traditional CaCO3 threshold inhibitors (as shown in Figure 1), e.g., 1-hydroxy ethylidene 1,1-diphosphonic acid (HEDP), amino tri (methylene phosphonic acid) (AMP), and polyacrylic acid.

The X-axis in this figure is the amount of HEDP as PPM needed to form precipitation in a water containing 10,000 PPM of Calcium ions. The data for temperature curve was collected at pH 9, while the pH curve represents data at 250°F. At higher temperature and/or higher pH, Polyamino polyether methylene phosphonate requires Poly amino polyether methylene phosphonate (Polyamino polyether methylene phosphonate ) is a very effective inhibitor in preventing CaCO3 precipitation. The extraordinary affinity of Polyamino polyether methylene phosphonate towards CaCO3 surfaces and its excellent tolerance of calcium materials make this polymer excellent in inhibiting the growth of CaCO3 crystal. Amjad et al. have extensively studied phosphonate-based polymer performance in cold water. They have studied the effectiveness of phosphate and phosphonate polymers in stabilized and all-organic cooling water treatment facilities. This study reported that these polymers are capable of performing a dual function. Firstly, they control the thickness of the calcium phosphate and phosphonate membrane on the metal surface.

Secondly, they prevent the precipitation of the calcium phosphate and phosphonate salts in the recirculating water. Another study conducted by the same research group demonstrated the performance of sulphonic-acid-containing terpolymer for controlling the growth of calcium phosphonates and carbonate scale. Polyamino polyether methylene phosphonate showed that these polymers improved the control of calcium phosphonate and carbonate in highly stressed cooling water systems. Wang et al. also conducted a similar study in which they have reported the inhibition of CaCO3 by a phosphonate-terminated poly(maleic-co-sulfonate) polymeric inhibitor. This study showed that this inhibitor is capable of controlling CaCO3 scale. In recent years, the percentage of oil production from more challenging environments has increased.

In addition to the numerous engineering and logistical difficulties of working at increased depth, temperature and pressure these production zones provide a harsh environment deleterious to the performance of some critical oilfield chemicals. Scale inhibitors are one class of oil field chemicals which are deployed through squeeze treatments into the formation and/or continuous downhole injection for protection of production tubulars. As well depths continue to increase, the exposure time of the injected chemicals also increases. With temperatures in the range of 180-200 °C and pressures exceeding 10,000 psi, the effect of elevated temperature and pressure on scale inhibitor performance is a critical parameter to evaluate using chemical analytical techniques and product performance methods.
Another trend leading to increased thermal exposure is the use of thermal enhanced recovery techniques. Scale inhibitors are exposed to high temperatures in operations such as steam flooding and steam assisted gravity drainage (SAGD). In this study, a range of chemicals have been evaluated for their short and medium-term thermal stability at 180 and 200 °C. The primary application of this data is for downhole injection and squeeze treatments prior to adsorption.

Inhibitor chemical types include sulfonated polycarboxylic acid (SPCA), fluorescent tagged sulfonated polycarboxylic acid (FSPCA), phosphorous tagged sulfonated polycarboxylic acid (PSPCA), sulfonated polyacrylocarboxylic acid (SPAC), polyacrylic acid (PAA), polyvinyl sulfonate (PVS), polyamino polyether methylene phosphonate (Polyamino polyether methylene phosphonate ), bis(hexamethylene)triamine pentakis(methylene phosphonic acid) (BHTPMP) and diethylenetriamine pentakis(methylene phosphonic acid) (DTPMP). In most cases the sodium or potassium salts of the inhibitors are used. The chemical effect of temperature on scale inhibitors is measured through molecular weight determination, thermogravimetric analysis (TGA), pH change, and Fourier Transform Infrared (FTIR) analysis. The performance of these inhibitors is measured under static and dynamic conditions for inhibition of barium sulfate scale. These results help to further the knowledge of inhibitor degradation due to thermal effects and indicate the direction for further product development of thermally stable scale inhibitors.

Calcium sulfate dihydrate (gypsum) scale inhibition by PAA, Polyamino polyether methylene phosphonate , and PAA/Polyamino polyether methylene phosphonate blend. The effects of poly(acrylic acid), PAA, polyamino polyether methylene phosphonic acid, Polyamino polyether methylene phosphonate , and PAA/Polyamino polyether methylene phosphonate blend on calcium sulfate dihydrate (gypsum) are reported in this paper. Polyamino polyether methylene phosphonate has been found that gypsum inhibition by PAA increases with increasing PAA concentration. Among the various phoshonates (i.e., aminotris(methylene phosphonic acid), AMP; hydroxyphosphono acetic acid, HPA; hydroxyethylidene 1,1-diphosphonic acid, HEDP; 2-phosphonobutane 1,2,4-tricarboxylic acid, PBTC; and polyether polyamino phosphonic acid, PAPEP) evaluated, Polyamino polyether methylene phosphonate shows the best inhibition for gypsum precipitation.

Polyamino polyether methylene phosphonate has also been observed that presence of Polyamino polyether methylene phosphonate exhibits synergistic effect on the performance of PAA. Results on calcium ion compatibility of various phosphonates show that Polyamino polyether methylene phosphonate compared to other phosphonates tested show higher tolerance to calcium ions. Deposition of unwanted materials, including mineral scales, suspended matter, microbiological growth, and corrosion products, continues to plague the operation of industrial water systems. This article presents performance data on polyamino polyether methylene phosphonic acid (Polyamino polyether methylene phosphonate ) on various mineral scales commonly encountered in boiler, cooling, desalination, geothermal, gas, and oil systems. Water that is available for domestic and industrial applications typically contains many impurities.

The accumulation of unwanted deposits on equipment surfaces is a phenomenon that occurs in virtually all processes in which untreated water is heated. The deposition of these materials, especially on heat exchanger surfaces in boiler, cooling, geothermal, and distillation systems, can cause a number of operational problems such as plugged pipes and pumps, inefficient use of water treatment chemicals, increased operational costs, lost production due to system downtime, and ultimately heat exchanger failure. Greater water conservation has been a driver for operating industrial water systems at higher concentration cycles, which increases the potential for deposit buildup on heat exchanger surfaces. Operating industrial water systems under stressed conditions demands a better understanding of the feed and recirculating systems’ water chemistry as well as the development of innovative additives and technological approaches for controlling scale, deposit, corrosion, and biofouling. The most promising scale control method among various approaches involves adding substoichiometric dosages, typically a few ppm, of water-soluble additives to the feedwater.

The invention provides a poly-amino poly-ether methylenephosphonic acid (Polyamino polyether methylene phosphonate )-containing corrosion and scale inhibitor, belongs to the technical field of water treatment and relates to a corrosion and scale inhibitor. The corrosion and scale inhibitor comprises Polyamino polyether methylene phosphonate , a zinc salt, a dispersant, a copper corrosion inhibitor and water. The corrosion and scale inhibitor has a reasonable formula, has good use effects and a low production cost, is suitable for an open circulated cooling water system and is especially suitable for a high-hardness, high-basicity and high-pH circulated cooling water system. Polyamino polyether methylene phosphonate is excellent to the scale-inhibiting properties of calcium carbonate, calcium phosphate, calcium sulfate, effectively can suppresses the formation of silicon dirt simultaneously, and there is the effect of satisfactory stability metal ion as zinc, manganese, iron. Polyamino polyether methylene phosphonate is a new kind of water treatment agent. XF-335S (Polyamino polyether methylene phosphonate ) has high chelation and dispersion effects, high value of calcium tolerance, and good scale inhibition effects.

Polyamino polyether methylene phosphonate can be used as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system in situations of high hardness, high alkali and high pH value. Polyamino polyether methylene phosphonate widens the operational conditions available with today’s standard technology by allowing operations with hard water at higher pH levels and greater salt concentrations. Polyamino polyether methylene phosphonate Polyamino polyether methylene phosphonate is possible to operate at up to 300X calcite saturation because of its excellent calcium tolerance. As a result Polyamino polyether methylene phosphonate controls up to three times as much calcium carbonate as ATMP or PBTC (operating at up to 100x calcite saturation).
The invention provides a poly-amino poly-ether methylenephosphonic acid (Polyamino polyether methylene phosphonate )-containing corrosion and scale inhibitor, belongs to the technical field of water treatment and relates to a corrosion and scale inhibitor. The corrosion and scale inhibitor comprises Polyamino polyether methylene phosphonate , a zinc salt, a dispersant, a copper corrosion inhibitor and water.

The corrosion and scale inhibitor has a reasonable formula, has good use effects and a low production cost, is suitable for an open circulated cooling water system and is especially suitable for a high-hardness, high-basicity and high-pH circulated cooling water system. Polyamino polyether methylene phosphonate performs excellently in the condition of high hardness and pH as a new antiscalant and corrosion inhibitor. With high calcium tolerance, Polyamino polyether methylene phosphonate scale inhibition ability is also high, particularly for CaCO3, CaPO4, and CaSO4. Polyamino polyether methylene phosphonate also effectively restrain the Si scale from a formation and stabilize the ions. Such as Mn, and Fe to form chelating compounds. Polyamino polyether methylene phosphonate also has a good tolerance to high temperature, high turbidity, high salt concentration, and high chlorine (Cl– and Br–) concentration. Sometimes Polyamino polyether methylene phosphonate is built with polycarboxylic acid. Polyamino polyether methylene phosphonate can be used as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system in situations of high hardness, high alkali, and high pH value. Polyamino polyether methylene phosphonate can be used as a scale inhibitor for a reverse osmosis system and a multistep flash vaporization system.

The good adaption to different situations enables Polyamino polyether methylene phosphonate widely used in boiler, cooling water system and oilfield reinjection water as antiscalant and corrosion inhibitor. For the same reason, Polyamino polyether methylene phosphonate is also applied in RO and multistep flash system. Recommend dosage is 5-100 ml/L. Unlike other organophosphonates, there is no optimum dosage for Polyamino polyether methylene phosphonate . Higher the dosage, better the effect. Besides, Polyamino polyether methylene phosphonate works as a nutrient absorber in agriculture. Polyamino polyether methylene phosphonate can also replace those more expensive color transfer inhibitors (eg. yellow turnback inhibitor) like EDTA, NTA, and DTPA in textile dyeing.NorthQuest 6300, or Polyamino polyether methylene phosphonate , is a new water treatment agent that has high chelation and dispersion effects, high value of calcium tolerance, and good scale inhibition effects.

NQ6300 can be used as scale and corrosion inhibitor in circulating cool water system, and oilfield refill water system in situations of high hardness, high alkali and high pH value. NQ6300 has excellent scale inhibition ability to calcium carbonate, calcium sulfate and calcium phosphate. NQ6300 can efficiently inhibit the formation of silica scale, stabilize metal ions such as Zn, Mn and Fe. polyamino polyether methylene phosphonate (Polyamino polyether methylene phosphonate ) description, its application areas and related patterns- polyamino polyether methylene phosphonate (Polyamino polyether methylene phosphonate ) market situation- polyamino polyether methylene phosphonate (Polyamino polyether methylene phosphonate ) manufacturers and distributors- polyamino polyether methylene phosphonate (Polyamino polyether methylene phosphonate ) prices (by region and provided by market players)- polyamino polyether methylene phosphonate (Polyamino polyether methylene phosphonate ) end-uses breakdown- polyamino polyether methylene phosphonate (Polyamino polyether methylene phosphonate ) downstream industries trends. Aquacid 114 EX is a new kind of scale inhibitor for industrial water treatment.

Polyamino polyether methylene phosphonate has high chelation and dispersion effect with high value of calcium tolerance and scale inhibition effect. Polyamino polyether methylene phosphonate can be used as scale and corrosion inhibitor in circulating cooling water system and oilfield of high hardness including calcium magnesium and barium sulfate scale inhibitor. Polyamino polyether methylene phosphonate is stable in aqueous solution under a wide range of pH, temperature and pressure. Polyamino polyether methylene phosphonate widens the operational conditions available with today’s standard technology by allowing operations with hard water at higher pH levels and greater salt concentrations. Polyamino polyether methylene phosphonate Polyamino polyether methylene phosphonate is possible to operate at up to 300X calcite saturation because of its excellent calcium tolerance. As a result Polyamino polyether methylene phosphonate controls up to three times as much calcium carbonate as ATMP or PBTC (operating at up to 100x calcite saturation).

The invention provides a poly-amino poly-ether methylenephosphonic acid (Polyamino polyether methylene phosphonate )-containing corrosion and scale inhibitor, belongs to the technical field of water treatment and relates to a corrosion and scale inhibitor. The corrosion and scale inhibitor comprises Polyamino polyether methylene phosphonate , a zinc salt, a dispersant, a copper corrosion inhibitor and water. The corrosion and scale inhibitor has a reasonable formula, has good use effects and a low production cost, is suitable for an open circulated cooling water system and is especially suitable for a high-hardness, high-basicity and high-pH circulated cooling water system. Polyamino polyether methylene phosphonate is a new kind of water treatment agent. Polyamino polyether methylene phosphonate has high chelation and dispersion effects, high value of calcium tolerance, and good scale inhibition effects. Polyamino polyether methylene phosphonate has excellent scale inhibition ability to calcium carbonate, calcium sulfate and calcium phosphate.