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87 results about "ATMP" patented technology

ATMP or aminotris(methylenephosphonic acid) is a phosphonic acid with chemical formula N(CH₂PO₃H₂)₃. It has chelating properties. It can be synthesized from the Mannich-type reaction of ammonia, formaldehyde, and phosphorous acid, in a manner similar to the Kabachnik–Fields reaction.

Oil field compound type anti-scale corrosion inhibitor and preparation method thereof

The invention relates to an oil field compound type anti-scale corrosion inhibitor and a preparation method thereof, belonging to the technical field of corrosion inhibitor. The oil field compound type anti-scale corrosion inhibitor is characterized by comprising the components by mass percent: 5-10% of sodium molybdate, 10-20% of sodium phosphate, 0.5-1% of acrylic acid-2-acrylamido-2-methyl propane sulfonic acid (AA-AMPS) copolymer, 1-2% of amino trimethylene phosphonic acid and 1-2% of hydroxyl ethylidene diphosphonic acid (HEDP). The preparation method comprises the steps of: firstly, completely dissolving sodium molybdate and sodium phosphate by using water; then, adding the AA-AMPS copolymer under the condition of stirring until the copolymer is completely dissolved; subsequently, adding ATMP and the HEDP, and further stirring for dissolving; and finally, adding water until the concentration of the mixed solution is in accordance with the requirement, so as to obtain the oil field compound type anti-scale corrosion inhibitor. The inhibitor disclosed by the invention has the advantages of simple components, available raw materials, simple technology, high efficiency, low cost, low dosage, good scale inhibition, descaling and corrosion inhibition effects and the like, and is convenient to prepare, rapid.
Owner:E TECH ENERGY TECH DEV CORP

Composite antisludging agent of reverse osmosis/nanofiltration system

The invention provides a composite antisludging agent of a reverse osmosis/nanofiltration system. The composite antisludging agent comprises the following components in percentage by weight: 2%-10% of cyclodextrin solution, namely a component I, 80%-90% of at least one or a mixture of amino trimethylene phosphonic acid (ATMP), a copolymer of maleic anhydride-acrylic acid (MA-AA), 2-phosphonic acid butane-1, 2,4-tricarboxylic acid (PBTCA), and hydroxyl ethylidene diphosphonic acid (HEDP), namely a component II, and 1%-10% of 2,2-dibromo-2-cyano-acetamid (DBNPA), namely a component III. The composite antisludging agent is prepared by mixing the component II and the component III, and then fusing the obtained mixture with the component I. When being applied to the reverse osmosis/nanofiltration/ultrafiltration system, the composite antisludging agent can be used for effectively relieving the pollution to the reverse osmosis/nanofiltration/ultrafiltration system caused by polcard, calcium sulphate salt, barium sulfate, strontium sulfate, calcium fluoride, colloidal iron and colloidal silica, relieving biological contamination simultaneously, improving the working efficiency of the system, prolonging the cleaning period and the service life of the reverse osmosis/nanofiltration/ultrafiltration system, and reducing the cost of reverse osmosis.
Owner:辽宁莱特莱德环境工程有限公司

Compound scale inhibitor for treating recirculated cooling water and preparation method thereof

The invention discloses a compound scale inhibitor for treating recirculated cooling water and a preparation method thereof. The scale inhibitor consists of polyaspartic acid and three or more HEDP, ATMP, SHMP, PESA, and PAPE, wherein the PASP is between 10 and 25 mg/L, the HEDP is between 1 and 10 mg/L, the ATMP is between 1 and 5 mg/L, the PESA is between 1 and 10 mg/L, the SHMP is between 1 and 5 mg/L, and the PAPE is between 1 and 5 mg/L. During the preparation of the compound scale inhibitor, the polyaspartic acid is added first, and then other materials are added into the polyaspartic acid; the heating temperature is between 60 and 80 DEG C, the stirring speed is 300 r/m, and the pH value is between 8.1 and 10.2; and the obtained product is kept stand for 1 to 6 hours. The compound scale inhibitor has excellent scale-inhibiting property and belongs to a low phosphorous formula, the formation rate of calcium phosphate scale is extremely low during the use, wastewater discharged by the formula cannot cause eutrophication pollution to the environment, and the compound scale inhibitor belongs to an environment-friendly product and is particularly suitable for the treatment of recirculated water with high calcium hardness and high alkali hardness.
Owner:SHANGHAI UNIV +1

Corrosion inhibitor

A corrosion inhibitor for use with Urea Ammonium Nitrate solutions is disclosed, comprising a blend of molybdate and one or more of the inorganic phosphates (including phosphates, polyphosphates, and pyrophosphates) and organic phosphates or phosphonates. Inorganic phosphates include, but are not limited to, SHMP (Sodium Hexametaphosphate) and TKPP (Tetra-Potassium Pyrophosphate). There are numerous other inorganic phosphates that will also serve as suitable secondary inhibitors. Organic phosphates or phosphonates include, but are not limited to, HEDP (1-Hydroxyethylidine-1,1-diphosphonic acid; also known as ethanol diphosphonate, acetodiphosphonic acid, or etidronic acid), ATMP or AMP (aminotri(methylenephosphonic acid)), PBTC (Phosphonobutane tricarboxylic acid), DETPMP (Diethylenetriaminepenta(methylene phosphonic acid)), and HPA (hydroxyphosphono acetic acid). There are numerous other organic phosphates and phosphonates that will also serve as suitable secondary inhibitors. The amount of molybdate can range from 1 ppm to 500 ppm by weight of fertilizer solution, with the preferred range from 10 ppm to 200 ppm. Amounts of inorganic or organic phosphate can also range from levels as low as 1 ppm up to 500 ppm, with the preferred range being from 5 ppm to 50 ppm.
Owner:HALLIBURTON ENERGY SERVICES INC

Chrome-free passivant for hot-dip galvanized steel sheet and preparation method thereof

The invention discloses a chrome-free passivant for a hot-dip galvanized steel sheet and a preparation method thereof. The passivant comprises acrylic resin, phytic acid, sodium silicate, ATMP, thiourea, titanium trichloride hydrochloric acid solution, tannin, succinic acid, 1-octanesulfonic acid sodium salt, benzothiazole, silica sol, triethoxyphenylsilane, HEDP, vanadyl acetylacetonate, polyethyleneimine and deionized water. The preparation method of the chrome-free passivant comprises the steps of firstly adding the acrylic resin, the phytic acid, the sodium silicate, the ATMP and the thiourea into the deionized water, heating and stirring, cooling down the mixture, then adding the titanium trichloride hydrochloric acid solution, the tannin, the succinic acid, the 1-octanesulfonic acid sodium salt and the benzothiazole, preserving the heat and stirring, cooling down the mixture and then adding the silica sol, the triethoxyphenylsilane and the HEDP, preserving the heat and stirring, cooling down the mixture, then adding the vanadyl acetylacetonate and the polyethyleneimine, stirring and obtaining the passivant. The passivant disclosed by the invention does not contain chrome and is environmentally friendly, and the galvanized steel sheet passivated by the passivant has higher corrosion resistance and oxidation resistance.
Owner:CHANGSHU FENGFAN POWER EQUIP

Corrosion inhibitor

A corrosion inhibitor for use with Urea Ammonium Nitrate solutions is disclosed, comprising a blend of molybdate and one or more of the inorganic phosphates (including phosphates, polyphosphates, and pyrophosphates) and organic phosphates or phosphonates. Inorganic phosphates include, but are not limited to, SHMP (Sodium Hexametaphosphate) and TKPP (Tetra-Potassium Pyrophosphate). Phosphoric acid may also be utilized to provide phosphate ions, by itself or in combination with other phosphorous containing compounds as a secondary inhibitor. There are numerous other inorganic phosphates that will also serve as suitable secondary inhibitors. Organic phosphates or phosphonates include, but are not limited to, HEDP (1-Hydroxyethylidine-1,1-diphosphonic acid; also known as ethanol diphosphonate, acetodiphosphonic acid, or etidronic acid), ATMP (aminotri(methylenephosphonic acid)), PBTC (Phosphonobutane tricarboxylic acid), DETPMP (Diethylenetriaminepenta(methylene phosphonic acid)), and HPA (hydroxyphosphono acetic acid). There are numerous other organic phosphates and phosphonates that will also serve as suitable secondary inhibitors. The amount of molybdate can range from 1 ppm to 500 ppm by weight of fertilizer solution, with the preferred range from 10 ppm to 200 ppm. Amounts of inorganic or organic phosphate can also range from levels as low as 1 ppm up to 500 ppm, with the preferred range being from 5 ppm to 50 ppm.
Owner:TRAHAN SCOTT DAVID +1

Preparation process for a solid aminotrimethylenephosphonic acid (ATMP) or 1-hydoxy ethyidene-1.1-diphosphonic acid

The invention relates to a preparation process for a solid aminotrimethylenephosphonic acid (ATMP) or 1-hydoxy ethyidene-1.1-diphosphonic acid, in particular to a high purity preparation process for the solid aminotrimethylenephosphonic acid (ATMP) or the 1-hydoxy ethyidene-1.1-diphosphonic acid, comprising the following steps: a, crystallization: controlling the temperature of the aminotrimethylenephosphonic acid (ATMP) or 1-hydoxy ethyidene-1.1-diphosphonic acid with 68-85% of the content of effective substance at 30-90 DEG C, adding ice crystal particles, and then precipitating the crystal; b, solid-liquid separation: carrying out centrifugal dewatering on the materials after crystal precipitation, and obtaining the sold aminotrimethylenephosphonic acid (ATMP) or the 1-hydoxy ethyidene-1.1-diphosphonic acid; c, product post-treatment: drying the solid aminotrimethylenephosphonic acid (ATMP) or the 1-hydoxy ethyidene-1.1-diphosphonic acid, removing crystal water under the temperature of 60-120 DEG C, then solid packing. The preparation process in the invention solves the problem of introducing impurity crystal nucleus in the solid preparation process of the aminotrimethylenephosphonic acid (ATMP) or the 1-hydoxy ethyidene-1.1-diphosphonic acid.
Owner:CHANGZHOU YAOS TONGDE CHEM

Reverse osmosis membrane special-purpose scale inhibitor and its manufacturing method

InactiveCN102423639ARestoring and Extending LifeEfficient and stable water production statusSemi-permeable membranesWater productionReverse osmosis
The invention relates to a reverse osmosis membrane special-purpose scale inhibitor and its manufacturing method. The scale inhibitor contains the following components of: by weight, 5-10 parts of hydroxyethylidene diphosphonic acid and sodium salt, 15-30 parts of amino trimethylene phosphonic acid (ATMP), 10-20 parts of ethylenediamine tetra methylenephosphonic acid and sodium salt, 5-10 parts of ethylene diamine tetraacetic acid disodium salt, 15-30 parts of 2-phosphonic acid-1,2,4-tricarboxyl butane, 15-30 parts of polyacrylic acid and sodium salt, 20-35 parts of an acrylic acid multipolymer, 15-30 parts of an acrylic acid sulfonic acid copolymer, 5-20 parts of hydrolyzed polymaleic anhydride and 30-40 parts of desalted water. The scale inhibitor provided by the invention can be used to effectively control sediments such as CaCO3, Ca3(PO4)2, CaSO4, BaSO4, SrSO4, SiO2 and the like, effectively stabilize Ca<2+> and Mg<2+> ions in process water, prevent the formation of insoluble fouling substances which precipitate to obstruct membrane pores, prevent coalescence of various scale and insoluble salt solids on the surface of the high-molecular reverse osmosis membrane, maintain good water molecule permeability of the reverse osmosis membrane, maintain normal water production capability and stabilize the quality of pure water.
Owner:上海久安水质稳定剂厂
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