Formulations for use in sulfur scale control in industrial water systems

Formulations of the present invention contain compounds of Formula (I) that are used as Sulfur Scale Inhibition and/or Removal Agents in the treatment of Industrial Water Systems.

Polymeric corrosion inhibitors

The present invention relates to the use of a product obtainable by the reaction of an alkoxylated fatty amine having the formula (I) wherein R is a hydrocarbyl group having 8-24 carbon atom; each B is, independently, an alkyl group having 1-4 carbon atoms, a benzyl group, or the group (AO) n H, wherein A is an alkylene group containing 2-4 carbon atoms, preferably 2 carbon atoms; each n is at least 1 and the sum of all n is 2-30; x is 2 or 3; and y is 0-3, preferably 0 or 1; or of a product obtainable by partial or total quaternisation of the alkoxylated fatty amine of formula (I); with a dicarboxylic acid derivative having the formula (IIa) or (IIb) wherein D is —OH, —Cl, or —OR3, wherein R3 is a C1-C4 alkyl group; R2 is an alkylene radical of formula —(CH 2 ) z —, wherein z is an integer from 0 to 10, preferably from 2 to 4, and most preferably 2, and wherein the alkylene radical may be substituted by 1 or 2 —OH groups; the group —CH═CH—, or the o-phenylene group; or by reacting a product (I) with a dicarboxylic acid derivative (IIa) or (IIb), followed by partial or total quaternisation of the reaction product obtained; or by reacting a product (I) with a dicarboxylic acid derivative (IIa) or (IIb), followed by partial or total quaternisation of the reaction product obtained, wherein the product consists to >60% w/w of oligomers/polymers with at least two alkoxylated amine units and one or more diacid/acid anhydride unit and to >50% w/w of oligomers/polymers with at least two alkoxylated amine units and two or more diacid/acid anhydride units; as a corrosion inhibitor for metal surfaces. The invention also relates to a method for protecting a metal surface from corrosion by contacting the metal surface with said corrosion inhibitor.

Method of scale inhibition

A method is disclosed to inhibit scale formation in aqueous systems whereby a threshold amount of a scale inhibiting agent, represented by an aminoacid alkylphosphonic acid, is added to the aqueous system. The aminoacid moiety can be represented by α-species or by species having, at least, two or more carbon atoms between the carboxylic moiety and the amine group. These aminoacid based inhibitors exhibit unusually superior performance and system acceptability compared to leading state-of-the-art inhibitors.

SCALE INHIBITING POLYMER COMPOSITIONS, MIXTURES, AND METHODS OF USING THE SAME

Disclosed herein are polymer compositions useful for scale inhibiting applications. The polymer compositions include a plurality of monomers, which include at least one carboxylic acid and a sulfonated acid. The polymer compositions are used in polymer mixtures in water sources for inhibiting scale formation at relatively low dosages. 1. A scale inhibiting polymer mixture , comprising:a water source; and about 55 mol % to about 99 mol % of a first monomer comprising a first carboxylic acid residue; and', 'about 0.01 mol % to about 45 mol % of a second monomer comprising one of a sulfonated acid residue or a second carboxylic acid residue, wherein the first monomer is chemically different from the second monomer., 'about 0.05 ppm to about 200 ppm of a polymer composition, the polymer composition comprising2. The scale inhibiting polymer mixture of wherein the first monomer is about 85 mol % to about 97 mol % of the polymer composition and the second monomer is about 1 mol % to about 5 mol % of the polymer composition.3. The scale inhibiting polymer mixture of wherein:the first monomer comprises a residue of acrylic acid, maleic acid, methacrylic acid, or a conjugate base of any of the foregoing; andthe second monomer comprises a residue of 2-acrylamido-2-methylpropane sulfonic acid, maleic acid, methacrylic acid, or a conjugate base of any of the foregoing.4. The scale inhibiting polymer mixture of wherein the first monomer comprises a residue of one of acrylic acid claim 1 , maleic acid claim 1 , or methacrylic acid claim 1 , or a conjugate base thereof and the second monomer comprises a residue of 2-acrylamido-2-methylpropane sulfonic acid or a conjugate base thereof.5. The scale inhibiting polymer mixture of wherein:the first monomer comprises a residue of one of acrylic acid, maleic acid, or a conjugate base or salt of any of the foregoing; andthe second monomer comprises a residue of one of sulfostyrene, methallyl sulfonate, or a conjugate base or salt of any of ...

SILICA SCALE INHIBITORS

Industrial water such as in a geothermal unit is stabilized against silica polymerization and flocculation by using a combination of inhibitors including a nonionic polyether and a monomeric polycarboxylate. 1. A method of inhibiting the formation of silica scale in an industrial water process , comprising treating the water in the industrial process with an anti-scalant effective amount of a combination of two inhibitors , wherein a first inhibitor comprises a nonionic polyether and a second inhibitor comprises a monomeric polycarboxylate.2. The method according to claim 1 , wherein the nonionic polyether comprises a homopolymer of ethylene oxide.3. The method according to claim 1 , wherein the second inhibitor comprises a molecule with carboxyl groups on the same atom claim 1 , on adjacent atoms claim 1 , or on two different atoms separated by a third atom.4. The method according to claim 3 , wherein the second inhibitor comprises EDTA or pentetic acid.5. The method according to claim 1 , wherein the concentration of the first inhibitor in the treated water is about 0.1 ppm to about 100 ppm claim 1 , and the concentration of the second inhibitor in the treated water is about 0.1 ppm to about 100 ppm.6. The method according to claim 1 , wherein the pH is 7 to 8 claim 1 ,7. The method according to claim 1 , wherein the first inhibitor has a weight average molecular weight of 1000 to 20000 Dalton.8. The method according to claim 1 , wherein the first inhibitor is a polyethylene glycol and the second inhibitor is EDTA.9. The method according to claim 1 , wherein the water in the industrial water process comprises 20 ppm to 1000 ppm silica as SiO.10. A method of inhibiting the formation of silica scale in the water of a geothermal system claim 1 , comprising treating the water of the geothermal system with an anti-scalant effective amount of a combination of two inhibitors claim 1 , wherein a first inhibitor comprises a polyethylene glycol and a second inhibitor ...

CHEMICAL PRODUCTS FOR SURFACE PROTECTION

Some implementations of the present disclosure prevent, reduce or at least slow equipment fouling using passivation as a treatment prior to contacting metallic components with hydrocarbon containing fluid, that is, an environment where fouling occurs. For example, one implementation includes a method of passivating heat exchangers in a SAGD process or system using the compositions and compounds of the present disclosure. The composition may be applied to a component prior to its first inclusion in an online system or following placing the system offline for maintenance. The composition may be used to treat metallic equipment surface(s), for example, via contacting them with a suspension or solution of the composition described herein, prior placing the system online. The method may further include treatment of the process fluid, for example, via injection or batch treatment of the composition with the compositions described herein into the process fluid. 2. The composition of claim 1 , further comprising:an additive selected from the group consisting of: surfactants, acids, film forming agents, solvents, freeze point depressors, scale inhibitors, wetting agents, and alkylene oxides.3. The composition of claim 1 , further comprising a scale inhibitor selected from the group consisting of: phosphate esters claim 1 , acetylenic alcohols claim 1 , fatty acids and/or alkyl-substituted carboxylic acids and anhydrides claim 1 , quaternary amines claim 1 , sulfur-oxygen phosphates and/or polyphosphate esters claim 1 , and combinations thereof.4. The composition of claim 1 , further comprising a surfactant selected from the group consisting of: quaternary alkyl amines claim 1 , tetrabutylammomium acetate claim 1 , tetrabutylammonium bromide claim 1 , tetrabutylammonium nitrate claim 1 , sodium lauryl sulfate claim 1 , sodium lauryl ether sulfate claim 1 , polyamines claim 1 , as polymers or copolymers comprising ethylene oxide claim 1 , and propylene oxide claim 1 , ...

SYNERGISTIC CHEMISTRY TO PREVENT SILICATE SCALING

Two intermediates that have known separate efficacy for preventing scales such as calcium carbonate, magnesium carbonate and barite (barium sulfate) were discovered to have a synergistic effect for preventing or inhibiting silicate scaling when used together. Each of these intermediates is ineffective at preventing silicate scaling when used alone; however, when used in combination, they have a synergistic benefit. In one non-limiting embodiment the components include a polyamine phosphonate and a lysine tetra(alkylene)phosphonate. 1. A chemical blend for inhibiting or preventing the formation of silicate scales in a fluid having a potential for silicate scaling , where the chemical blend comprises:at least one first chemical that is a polyamine phosphonate, andat least one second chemical that is a lysine tetra(alkylene)phosphonate.2. The chemical blend of where the polyamine phosphonate is diethylenetriamine (DETA) phosphonate and where the lysine tetra(alkylene)phosphonate is lysine tetra(methylene)phosphonate (LTMP).3. The chemical blend of where in the chemical blend:the amount of the polyamine phosphonate ranges from about 0.1 to about 50 wt %, andthe amount of the lysine tetra(alkylene)phosphonate ranges from about 0.1 to about 50 wt %.4. The chemical blend of where in the chemical blend:the amount of the polyamine phosphonate ranges from about 1 to about 36 wt %, andthe amount of the lysine tetra(alkylene)phosphonate ranges from about 1 to about 36 wt %.5. The chemical blend of where in the chemical blend:the amount of the polyamine phosphonate ranges from about 2 to about 25 wt %, andthe amount of the lysine tetra(alkylene)phosphonate ranges from about 2 to about 25 wt %.6. A chemical blend for inhibiting or preventing the formation of silicate scales in a fluid having a potential for silicate scaling claim 1 , where the chemical blend comprises:about 0.1 to about 50 wt % of at least one first chemical that is diethylenetriamine (DETA) phosphonate, andabout ...

Reducing Aluminosilicate Scale in the Bayer Process

The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more particular silane based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process. 114-. (canceled)16. The method of claim 15 , wherein the first component claim 15 , the second component claim 15 , and the third component are present in the non-polymeric molecule at a mole ratio ranging from about 1.0:1.0:0.5 to about 1.0:3.0:2.0.17. The method of claim 15 , wherein the first component claim 15 , the second component claim 15 , and the third component are present in the non-polymeric molecule at a mole ratio ranging from about 1.0:1.0:0.5 to about 1.0:2.0:1.0.18. The method of claim 15 , wherein the first component claim 15 , the second component claim 15 , and the third component are present in the non-polymeric molecule at a mole ratio of about 1.0:2.0:0.8.19. The method of claim 15 , wherein the composition is a solid.20. The method of claim 15 , wherein the non-polymeric molecule is isolated as an unhydrolized alkoxysilane protected with methyl or ethyl ether groups.21. The method of claim 15 , wherein the composition is a gel claim 15 , a liquid claim 15 , a solid claim 15 , or a powder.22. The method of claim 15 , wherein the composition is added to the Bayer process stream in an amount of from about 20 ppm to about 80 ppm.23. The method of claim 15 , wherein the composition is added to the Bayer process stream in an amount of from about 50 ppm to about 60 ppm.24. The method of claim 15 , wherein the non-polymeric molecule comprises 2 mole equivalents of 3- ...

Multiple Uses of Amine Salts for Industrial Water Treatment

A method for treating in an industrial water treatment system for at least two of metal corrosion inhibition, scale inhibition, suspended matter dispersion, biocide efficacy, or biofilm removal/biofilm dispersion is taught by the use of at least one compound which is a salt derived from a thioamine or an oxyamine and an acid. 1. A method of treating the water in IWT systems , which comprises using , as the active agent , a thioammonium or an oxyammonium salt compound of Formula (I):{'br': None, 'sup': 1', '+', '−z, 'sub': 3', 'z, '[R—X—R—NH]M\u2003\u2003Formula (I)'} {'sub': 6', '24', '6', '24', '2', '3, 'R is a straight-chain or branched-chain C-Calkyl or a straight-chain or branched-chain C-Calkyloxy-C-C-alkyl;'}, 'whereinX is S or O;{'sup': '1', 'sub': 2', '3, 'claim-text': z is an integer of at least 1 up to the total number of acidic protons on M; and', {'sub': 2', '12, 'M is an ionic moiety with a charge greater than or equal to one, is derived from an acid having one or more acidic hydrogens, and has two or more groups capable of coordination to metal cations or electron-deficient sites on a metal surface, selected from the group consisting essentially of the anions derived from: 2-hydroxypropane-1,2,3-tricarboxylic acid; 2,3-dihydroxybutanedioic acid; trihydroxidooxidophosphorus; 1-hydroxyethan-1,1-diyl)bis(phosphonic acid; 2,3,4,5-tetrahydroxyhexanedioic acid; 2,3,4,5,6-pentahydroxyhexanoic acid; hydroxybutanedioic acid; 2-phosphonobutane-1,2,4-tricarboxylic acid; 2,2′,2″,2′″-(ethane-1,2-diyldinitrilo)tetraacetic acid; nitriloacetic acid; butanetetracarboxylic acid; 2-hydroxyphosphonoacetic acid; polycarboxylic acids, such as poly(prop-2-enoic acid) and poly(Z)-butenedioic acid; polycarboxylic acid copolymers comprising two or more prop-2-enoic acid, (Z)-butenedioic acid, or sulfonated prop-2-enoic acid derivative repeat units; C-Cdibasic carboxylic acids, including ethanedioic, butanedioic, (Z)-butenedioic, hexanedioic, and nonanedioic acids; and ...

STABILIZATION OF COMPOSITIONS COMPRISING QUATERNARY TRIALKYLALKANOLAMINE HYDROXIDE

A composition comprising a) a quaternary trialkylalkanolamine hydroxide and b) at least one diamine as component b), which is selected from the group consisting of 1-amino-4-methylpiperazine, 1,2-diaminopropane and mixtures thereof. 1. A composition comprising a) a quaternary trialkylalkanolamine hydroxide and b) at least one diamine as component b) , which is selected from the group consisting of 1-amino-4-methylpiperazine , 1 ,2-diaminopropane and mixtures thereof.2. The composition according to claim 1 , wherein component b) is 1-amino-4-methylpiperazine.3. The composition according to claim 1 , wherein component b) is 1 claim 1 ,2-diaminopropane.4. The composition according to claim 1 , wherein component b) is a mixture of 1-amino-4-methylpiperazine and 1 claim 1 ,2-diaminopropane.5. The composition according to claim 4 , wherein the weight ratio of 1-amino-4-methylpiperazine to 1 claim 4 ,2-diaminopropane is in the range of 1:9 to 9:1 claim 4 , preferably of 1:9 to 4:6.6. The composition according to claim 1 , wherein the component a) is N claim 1 ,N claim 1 ,N-trimethyl-hydroxyethyl-ammonium hydroxide.7. The composition according to claim 1 , wherein the concentration of component a) is in the range of 5 to 60% by weight claim 1 , preferably in the range of 20 to 60% by weight claim 1 , based on the total weight of the composition.8. The composition according to claim 1 , wherein the concentration of component b) is in the range of 0.1 to 3% by weight claim 1 , preferably in the range of 0.1 to 1% by weight claim 1 , based on the total weight of the composition.9. The composition according to claim 1 , which is an aqueous composition.10. The composition according to claim 1 , further comprising at least one component c) selected from the group consisting of N claim 1 ,N-diethylhydroxylamine claim 1 , diethylentriamine claim 1 , ethylenediamine claim 1 , hydroxylamine or hydroxylamine salts.11. The composition according to claim 10 , comprising 1-amino-4- ...

ELEMENTAL SULFUR DISPERSANT TO CONTROL FOULING IN WATER SYSTEMS

A composition and method for dispersing sulfur, cleaning sulfur deposits, and minimizing foaming in an aqueous system is disclosed. The method may include adding a first sulfur dispersant to process water containing sulfur and dispersing the sulfur. The first sulfur dispersant may include a C-Calkyl polyglycoside. A second sulfur dispersant may also be added to the process water. The second sulfur dispersant may include a polymer of acrylic acid and 2-acrylamido-2-methylpropane sulfonic acid. 1. A method of dispersing sulfur , comprising:{'sub': 5', '25, 'adding a first sulfur dispersant to process water containing sulfur, wherein the first sulfur dispersant comprises a C-Calkyl polyglycoside; and'}dispersing the sulfur.2. The method of claim 1 , further comprising adding a second sulfur dispersant to the process water.3. The method of claim 2 , wherein the second sulfur dispersant comprises a polymer comprising acrylic acid and 2-acrylamido-2-methylpropane sulfonic acid.4. The method of claim 2 , further comprising blending the first sulfur dispersant and the second sulfur dispersant to form a dispersant mixture before addition to the process water.5. The method of claim 4 , wherein the dispersant mixture comprises from about 5% to about 95% by weight of the first sulfur dispersant and from about 95% to about 5% by weight of the second sulfur dispersant.6. The method of claim 1 , further comprising adding an anti-foaming agent to the process water.7. The method of claim 6 , wherein the anti-foaming agent is selected from a C-Calkyl alcohol claim 6 , a C-Calkyl alcohol ethoxylate claim 6 , monobasic aluminum stearate claim 6 , stearic acid claim 6 , polydimethylsiloxane claim 6 , sorbitan monostearate claim 6 , hydrated silica claim 6 , ethoxylated sorbitan monostearate claim 6 , xanthan gum claim 6 , amorphous silica claim 6 , and any combination thereof.8. The method of claim 6 , wherein the anti-foaming agent comprises polydimethylsiloxane and sorbitan ...

USE OF DI-IONIC COMPOUNDS AS CORROSION INHIBITORS IN A WATER SYSTEM

Disclosed herein are the methods of using di-cationic or di-anionic compounds, which are derived from primary amine through an aza-Michael addition with an activated olefin, in a corrosion control composition to mitigate corrosion of a surface in a water system. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used single quaternary compounds for mitigating corrosion for a metal surface in water systems. 2. The method according to claim 1 , wherein X is NH.3. The method according to claim 1 , wherein X is O.4. The method according to claim 1 , wherein Ris Rand Ris a linear C-Calkyl claim 1 , alkenyl claim 1 , or alkynyl group.5. The method according to claim 1 , wherein Ris R—Z—(CH)— or R—Z—(CH)— claim 1 , Z is NH claim 1 , and Ris a linear C-Calkyl claim 1 , alkenyl claim 1 , or alkynyl group.6. The method according to claim 1 , wherein Ris R—Z—(CH)— claim 1 , Z is O claim 1 , and Ris a linear C-Calkyl claim 1 , alkenyl claim 1 , or alkynyl group.7. The method according to claim 1 , wherein Ris H or CH.8. The method according to claim 1 , wherein Y is —NRRR claim 1 , N(CH) claim 1 , N(CH)R claim 1 , and wherein Ris a C-Calkyl. aryl claim 1 , or is —CH—CH.9. The method according to claim 1 , wherein Ris CH claim 1 , CHCH claim 1 , or C(CH) claim 1 , an unsubstituted and linear C-Calkylene group.10. The method according to claim 1 , wherein Ris a C-Calkenyl group with at least one trans or cis double bond.11. The method according to claim 1 , wherein the corrosion control composition agent is a carrier claim 1 , wherein the carrier is water claim 1 , an organic solvent claim 1 , or a mixture thereof.12. The method according to claim 1 , wherein the corrosion control composition agent is a carrier and one or more additional corrosion inhibitors.13. The method according to claim 1 , wherein the corrosion control composition agent is a biocide claim 1 , wherein the biocide is chlorine claim 1 , ...

COMPOSITION USEFUL IN SULFATE SCALE REMOVAL

The present invention discloses a novel aqueous composition for use in removing barium sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: LiDTPA; NaDTPA; KDTPA; CsDTPA; NaEDTA; KEDTA; TEAHDTPA; and TBAHDTPA; and a scale removal enhancer. There is also disclosed methods to use such compositions. 1. A Method of removing sulfate scale off of a contaminated surface , said method comprising: {'sub': 5', '5', '5', '5', '4', '4', '4', '5, 'a chelating agent selected from the group consisting of: LiDTPA; NaDTPA; KDTPA; CsDTPA; NaEDTA; KEDTA; TEAHDTPA; and TBAHDTPA;'}, 'providing a liquid composition comprisingexposing said surface contaminated with barium sulfate scale to the liquid composition;allowing sufficient time of exposure to remove barium sulfate scale from the contaminated surface.2. The method according to claim 1 , wherein the liquid composition further comprises a scale removal enhancer that is selected from the group consisting of: potassium carbonate; potassium formate; cesium formate; cesium carbonate; and combinations thereof.3. The method according to claim 1 , wherein the sulfate scale is selected from the group consisting of: magnesium sulfate; barium sulfate; calcium sulfate; strontium sulfate; radium sulfate; and combinations thereof.4. An aqueous composition for use in removing sulfate scale from a surface contaminated with such claim 1 , said composition comprising:{'sub': 5', '5', '5', '5', '5', '4', '4', '4', '5, 'a chelating agent and a counterion component selected from the group consisting of: LiDTPA; NaDTPA; KDTPA; KDTPA; CsDTPA; NaEDTA; KEDTA; TEAHDTPA; and TBAHDTPA; and'}a scale removal enhancer.5. The aqueous composition according to claim 4 , wherein the scale removal enhancer is selected from the group consisting of: potassium carbonate; potassium formate; cesium formate and cesium carbonate and combinations thereof.6. The ...

METHOD FOR MONITORING FLUORESCENT POLYMER ANTISCALANTS IN INDUSTRIAL WATER SYSTEMS

The present invention relates to a fluorescently-tagged (co)polymer and use thereof useful as a scale inhibitor in industrial water systems. Said (co)polymer comprises a (i) reactive fluorescent compound selected from a benzodiazole compound (ii) at least one monoethylenically unsaturated acid monomer, and (iii) optionally, at least one monoethylenically unsaturated acid-free monomer. 4. The method of wherein the benzodiazole-tagged (co)polymer comprises:(ii) at least one monoethylenically unsaturated acid monomer and(iii) optionally, at least one monoethylenically unsaturated acid-free monomer.5. The method of wherein(ii) the monoethylenically unsaturated acid monomer is selected from acrylic acid, methacrylic acid, crotonic acid, vinylacetic acid, maleic acid, maleic anhydride, 1,2,3,6-tetrahydrophthalic anhydride, 3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride, 5-norbornene-2,3-di-carboxylic anhydride, bicyclo-[2.2.2]-5-octene-2,3-dicarboxylic anhydride, 3-methyl-1,2,6-tetrahydrophthalic anhydride, 2-methyl-1,3,6-tetrahydrophthalic anhydride, itaconic acid, mesaconic acid, fumaric acid, citraconic acid, 2-acrylamido-2-methylpropanesulfonic acid, allylsulfonic acid, allylphosphonic acid, allyloxybenzenesulfonic acid, 2-hydroxy-3-(2-propenyloxy)-propanesulfonic acid, isopropenylphosphonic acid, isopro-penylsulfonic acid, vinylphosphonic acid, styrenesulfonic acid, vinylsulfonic acid, and the alkali metal or ammonium salts thereof and(iii) if present, the monoethylenically unsaturated acid-free monomer is selected from methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate and isobutyl methacrylate; hydroxyalkyl esters of acrylic or methacrylic acids such as hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, acrylamide, methacrylamide, N-t-butylacrylamide, N-methylacrylamide, N,N-dimethyl-acrylamide, acrylonitrile, methacrylonitrile, allyl alcohol, phosphoethyl ...

HYDROPHOBICALLY MODIFIED POLYAMINE SCALE INHIBITORS

Hydrophobically modified Si-containing polyamines are useful for treating scale in industrial process streams. Preferred hydrophobically modified Si-containing polyamines are particularly useful for treating aluminosilicate scale in difficult-to-treat industrial process streams, such as in the Bayer alumina process streams, nuclear waste streams and kraft paper mill effluent streams. 1. A method of treating scale in a process stream comprising:intermixing with a process stream a composition comprising a polymeric reaction product of a polyamine, a first nitrogen-reactive compound, and a second nitrogen-reactive compound, the polymeric reaction product having a weight average molecular weight of at least 500,wherein the composition is present in an amount effective to reduce or eliminate scale in the process stream,{'sub': 3', '1', '20', '6', '12', '7', '20', '2', '20', '4', '1', '20', '6', '12', '7', '20', '2', '20, 'sup': 1', '1, 'wherein the first nitrogen-reactive compound comprises a —Si(OR)group and a nitrogen-reactive group, wherein R is H, optionally substituted C-Calkyl, optionally substituted C-Caryl, optionally substituted C-Caralkyl, optionally substituted C-Calkenyl, Group I metal ion, Group II metal ion, or NR, wherein each Ris independently selected from H, optionally substituted C-Calkyl, optionally substituted C-Caryl, optionally substituted C-Caralkyl, and optionally substituted C-Calkenyl;'}{'sub': '3', 'wherein the second nitrogen-reactive compound comprises a nitrogen-reactive group and does not contain a —Si(OR)group;'}wherein at least one of the polyamine and the second nitrogen-reactive compound comprises an optionally substituted hydrocarbyl radical comprising from 2 to 40 carbons; andwherein the process stream comprises at least one of a sulfate level of at least 1 g/L, a iron oxide level of at least 20 mg/L, a sodalite level of at least 20 mg/L, and a combined nitrate/nitrite concentration of at least 0.5 molar.3. The method according to ...

METHODS AND SYSTEMS FOR CALCITE REMOVAL USING POLYSUCCINIMIDE

Methods and systems are provided for removing calcite deposits by contacting polysuccinimide with water to dissolve the polysuccinimide and supplying the dissolved polysuccinimide to surfaces fouled with the calcite deposits. The pH of the water that dissolves the polysuccinimide can be adjusted based on the amount of calcium in the water. Adjusting the pH will affect the dissolution rate of the polysuccinimide in water and the rate of removal of the calcite deposits. 1. A method for treating a water system to remove calcite deposits , the method comprising:measuring an amount of dissolved calcium in the water system;contacting polysuccinimide with water in the water system to dissolve the polysuccinimide and to provide treatment water containing the dissolved polysuccinimide and/or hydrolysis products of the dissolved polysuccinimide;supplying the treatment water to surfaces of the water system that are fouled with calcite deposits;adding an alkali reagent to the water to increase the pH of the water and to increase a rate of dissolution of the polysuccinimide in the water,wherein an amount of the alkali reagent that is added to the water is based on the measured amount of dissolved calcium in the water system.2. The method according to claim 1 , further comprising measuring a flow rate of water in the water system claim 1 , and wherein the amount of alkali reagent that is added to the water is further based on the measured flow rate.3. The method according to claim 2 , wherein the flow rate is measured based on a measured fluorescence of at least one fluorescent dye.4. The method according to claim 1 , wherein the water system includes a main stream with a stream bed that is fouled with the calcite deposits and at least one of a split stream and side stream claim 1 , and wherein the polysuccinimide is contacted with water in the at least one of the split stream and side stream.5. The method according to claim 4 , wherein the alkali reagent is added to the at least ...

Steam generator additives to minimize fouling and corrosion in crude towers

Dual action amines provide corrosion protection from corrosion and fouling for a steam generator system and distillation tower of a petroleum or petrochemical refinery. These amines are chosen to provide protection for the steam condensate section of the boiler while simultaneously minimizing amine salt fouling and corrosion problems in the crude distillation tower and overhead condensing system of crude distillation units. The distribution ratio of the dual action amine should be about 4.0 or less, the amine pKa should be in the range of about 7.0 to about 11.0, and the amine HCl salt volatility index should be about 2.5 or less.

COMPOSITION AND METHOD OF SCALE CONTROL IN REGULATED EVAPORATIVE SYSTEMS

This invention pertains to an anti-scaling composition comprising a blend of a polyamino acid; an anionic carboxylic polymer; and a polymaleic acid. The blend is able to effectively stabilize calcium salts that lead to scale formation in evaporative systems. This “three-component” blend shows high levels of efficacy in acidic high conductivity waters found in many evaporative systems such as sugar and bio-refining. 1. A method for controlling , preventing and/or inhibiting the formation of calcium , magnesium , oxalate , sulfate , and phosphate scaling and/or deposits in a regulated evaporative system comprising;adding to the regulated evaporative system a mixture comprising a) a polyamino acid; b) an anionic carboxylic polymer; c) and a polymaleic acid; wherein the polyamino acid, anionic carboxylic polymer, and polymaleic acid has residence time together and is added to the regulated evaporative system premixed, simultaneously or sequentially and in any order.2. The method according to claim 1 , wherein the polyamino acid claim 1 , anionic carboxylic polymer and polymaleic acid are premixed prior to being added to the regulated evaporative system.3. The method of claim 3 , wherein the calcium and/or magnesium scale is from oxalates and phosphates.4. The method of any one of - claim 3 , wherein the composition comprises a polyamino acid in an amount of from about 2 ppm to about 100 ppm by weight regulated evaporative system claim 3 , can be from about 3 ppm to about 50 ppm by weight regulated evaporative system claim 3 , and may be from about 5 ppm to about 10 ppm by weight regulated evaporative system.5. The method of any one of - claim 3 , wherein the polyamino acid has an average molecular weight ranging from about 500 g/mol to about 10 claim 3 ,000 g/mol claim 3 , can be from about 1 claim 3 ,000 to about 5 claim 3 ,000 g/mol claim 3 , and may be from about 1 claim 3 ,000 g/mol to about 4 claim 3 ,000 g/mol.6. The method of any one of - claim 3 , wherein the ...

FLUORESCENT MONOMERS AND TAGGED TREATMENT POLYMERS CONTAINING SAME FOR USE IN INDUSTRIAL WATER SYSTEMS

The invention is directed towards methods and compositions for making and using fluorescent monomers which are synthesized by reacting a substituted or non-substituted benzoxanthene anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged treatment polymers. Such tagged treatment polymers are useful as scale inhibitors in industrial water systems. 2. The method of in which Q is acrylic acid and W is acrylamide.3. The method of in which Q is acrylamide claim 1 , W is acrylic acid claim 1 , and S is N-sulfomethylacrylamide.4. The method of in which Q is acrylic acid and W is acrylamidomethylpropane sulfonic acid.5. The method of in which U is sulfonated —N-(3-N′ claim 1 ,N′-Dimethylaminopropyl)benzo(k claim 1 ,l)xanthene-3 claim 1 ,4-dicarboxylic imide claim 1 , 2-hydroxy-3-allyloxypropyl quaternary salt claim 1 , Q is acrylic acid claim 1 , W is acrylamide and S is N sulfomethylacrylamide.6. The method of in which U is sulfonated —N-(3-N′ claim 1 ,N′-Dimethylaminopropyl)benzo(k claim 1 ,l)xanthene-3 claim 1 ,4-dicarboxylic imide claim 1 , vinyl benzyl chloride quaternary salt claim 1 , Q is acrylic acid claim 1 , W is acrylamide and S is N sulfomethylacrylamide.7. The method of in which G is sulfonated —N-(3-N′ claim 1 ,N′-Dimethylaminopropyl)benzo(k claim 1 ,l)xanthene-3 claim 1 ,4-dicarboxylic imide claim 1 , allyl chloride quaternary salt claim 1 , Q is acrylic acid claim 1 , W is acrylamide and S is N sulfomethylacrylamide.8. The method of in which G is sulfonated —N-(3-N′ claim 1 ,N′-Dimethylaminopropyl)benzo(k claim 1 ,l)xanthene-3 claim 1 ,4-dicarboxylic imide claim 1 , 2-hydroxy-3-allyloxypropyl quaternary salt claim 1 , Q is acrylic acid claim 1 , W is acrylamidomethylpropane sulfonic acid.9. The method of in which U is sulfonated —N-(3-N′ claim 1 ,N′-Dimethylaminopropyl)benzo(k claim 1 ,l)xanthene-3 claim 1 ,4-dicarboxylic imide claim 1 , vinyl benzyl chloride quaternary salt claim 1 ...

Dispersant for water treatment and water treatment method

An object of the present invention is to provide a dispersant for treatment of water. The dispersant is used in a membrane separation process of water containing an organic compound having a phenolic hydroxy group and prevents a reduction in amount of the water permeating a separation membrane, which is caused by deposition of the organic compound onto the surface of the separation membrane. Provided are a dispersant for treatment of water containing an organic compound having a phenolic hydroxy group wherein the dispersant contains a polymer compound having a carbonyl group and a structure including a nitrogen atom bonded to a carbonyl carbon atom; and a method for treatment of water containing an organic compound having a phenolic hydroxy group, wherein the method includes adding the dispersant to the water.

NITROGEN SUBSTITUTED AROMATIC TRIAZOLES AS CORROSION CONTROL AGENTS

Compositions and methods for inhibiting corrosion of metallic surfaces in contact with an aqueous medium such as copper, copper alloy, and steel surfaces of an open recirculating cooling water system. In certain embodiments, an aromatic triazole having an anionic substituent bonded to a nitrogen atom of the triazole (ANST) is used as the corrosion inhibitor. In other embodiments, the corrosion inhibitor is a reaction product of an aromatic triazole and an aldehyde (ATA). 2. (canceled)3. The composition as recited in claim 1 , wherein{'sub': '1', 'Ris phosphate, sulfate, sulfonate, phosphonate, or carboxy group or alkali metal or alkaline earth metal salts thereof or;'}{'sub': 1', '3', '(n)', '3', '1', '6', '1', '6', '1', '6, 'Ris —RZwherein n is an integer of 1 or greater, each Z is independently chosen from carboxy, phosphate, sulfate, sulfonate, phosphonate, or alkali metal or alkaline earth metal salts thereof, and Ris C-Calkyl, C-Calkoxy, or C-Chydroxylated alkyl.'}5. The composition as recited in claim wherein R and R′ are both H or R is H and R′ is methyl.6. The composition as recited in claim wherein Ris COOH claim 1 , SOH claim 1 , or RZwherein Ris CHZ is COOH and n=1; Ris —CHCH— and Z is COOH claim 1 , n=2; Ris C-Chydroxylated alkyl claim 1 , Z=sulfonate and n=1; or Ris CHZ is phosphonate and n=1.7. The composition as recited in claim 6 , wherein Ris RZwherein Ris 2-hydroxypropyl claim 6 , or 1-hydroxypropyl claim 6 , and Z is sulfonate and n=1.8. The composition as recited in claim 6 , wherein Ris RZ(n) wherein Ris CHZ is phosphonate and n=1.9. The composition as recited in claim 6 , wherein Ris COOH.10. The composition as recited in claim 6 , wherein Ris RZ(n) wherein Ris CHZ is carboxy and n is 1.11. The composition as recited in claim 6 , wherein Ris RZ(n) wherein Ris —CH—CH claim 6 , Z is carboxy and n is 2.12. The composition as recited in claim 6 , wherein Ris SOH.13. A method of inhibiting corrosion of metal surfaces in contact with an aqueous ...

POLY(ZWITTERION-ALT-SULFUR DIOXIDE) COPOLYMER

The poly(zwitterion-alt-sulfur dioxide) copolymer includes a structural unit having the structural formula: 2. The poly(zwitterion-alt-sulfur dioxide) copolymer according to claim 1 , wherein n is greater than 10.3. The poly(zwitterion-alt-sulfur dioxide) copolymer according to claim 1 , wherein n is 15-200.5. The method of making a poly(zwitterion-alt-sulfur dioxide) copolymer according to claim 4 , wherein n is greater than 10.6. The method of making a poly(zwitterion-alt-sulfur dioxide) copolymer according to claim 4 , wherein n is 15-200.7. The method of making a poly(zwitterion-alt-sulfur dioxide) copolymer according to claim 4 , further comprising the step of reacting the poly(zwitterion-alt-sulfur dioxide) copolymer with sodium hydroxide to form the sodium salt thereof.8. The method of making a poly(zwitterion-alt-sulfur dioxide) copolymer according to claim 4 , wherein the step of cocyclopolymerizing further comprises the steps of:absorbing sulfur dioxide gas in a solution of 3-(N,N-diallyl,N-carboethoxymethylammonio)propanesulfonate in DMSO to form a polymerization mixture;adding 2-2′-azoisobutyronitrile to the mixture under nitrogen gas to initiate polymerization; andheating the mixture at 60° C.9. The method of making a poly(zwitterion-alt-sulfur dioxide) copolymer according to claim 8 , wherein the polymerization mixture comprises an equimolar mixture of the 3-N claim 8 ,N-diallyl claim 8 ,N-carboethoxymethylammonio) propanesulfonate and the sulfur dioxide.10. A method of preventing calcium sulfate (CaSO) scale formation claim 8 , comprising the step of adding an effective amount of a polyzwitterion (PZ) polyelectrolyte to an aqueous solution for preventing CaSOscale formation.12. The method of preventing calcium sulfate (CaSO) scale formation according to claim 11 , wherein n is greater than 10.13. The method of preventing calcium sulfate (CaSO) scale formation according to claim 11 , wherein n is 15-200.14. The method of preventing calcium sulfate ( ...

CHEMICAL PRODUCTS FOR SURFACE PROTECTION

Some implementations of the present disclosure prevent, reduce or at least slow equipment fouling using passivation as a treatment prior to contacting metallic components with hydrocarbon containing fluid, that is, an environment where fouling occurs. For example, one implementation includes a method of passivating heat exchangers in a SAGD process or system using the compositions and compounds of the present disclosure. The composition may be applied to a component prior to its first inclusion in an online system or following placing the system offline for maintenance. The composition may be used to treat metallic equipment surface(s), for example, via contacting them with a suspension or solution of the composition described herein, prior placing the system online. The method may further include treatment of the process fluid, for example, via injection or batch treatment of the composition with the compositions described herein into the process fluid. 4. The composition of claim 1 , further comprising:an additive selected from the group consisting of: surfactants, acids, film forming agents, solvents, freeze point depressors, scale inhibitors, wetting agents, and alkylene oxides.5. The composition of claim 1 , further comprising a scale inhibitor selected from the group consisting of: phosphate esters claim 1 , acetylenic alcohols claim 1 , fatty acids and/or alkyl-substituted carboxylic acids and anhydrides claim 1 , quaternary amines claim 1 , sulfur-oxygen phosphates and/or polyphosphate esters claim 1 , and combinations thereof.6. The composition of claim 1 , further comprising a surfactant selected from the group consisting of: quaternary alkyl amines claim 1 , tetrabutylammomium acetate claim 1 , tetrabutylammonium bromide claim 1 , tetrabutylammonium nitrate claim 1 , sodium lauryl sulfate claim 1 , sodium lauryl ether sulfate claim 1 , as polymers or copolymers based on ethylene oxide and propylene oxide and alkoxylates based on substrates such as ...

Multiple Uses of Amine Salts for Industrial Water Treatment

A method for treating in an industrial water treatment system for at least two of metal corrosion inhibition, scale inhibition, suspended matter dispersion, biocide efficacy, or biofilm removal/biofilm dispersion is taught by the use of at least one compound which is a salt derived from a thioamine or an oxyamine and an acid. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. A compound of the formula of Formula (IA) below:{'br': None, 'sup': '1', 'img': {'@id': 'CUSTOM-CHARACTER-00001', '@he': '7.53mm', '@wi': '135.93mm', '@file': 'US20180155226A1-20180607-P00999.TIF', '@alt': 'text missing or illegible when filed', '@img-content': 'character', '@img-format': 'tif'}, '[R-X-R—NH \u2003\u2003(Formula (IA)'}wherein:{'sub': 6', '24', '6', '24', '2', '3, 'R is a straight-chain or branched-chain C-Calkyl or a straight-chain or branched-chain C-Calkyloxy-C-C-alkyl;'}X is S or O;{'sup': '1', 'sub': 2', '3, 'Ris a straight-chain or branched-chain C-Calkyl;'}z is a integer of at least 1 such that the compound of Formula (IA) is electrically neutral; andQ is an anionic moiety derived from an acid having one or more acidic hydrogens, and has two three or more groups capable of coordination to metal cations or electron-deficient sites on a metal surface, selected from the group consisting essentially of the anions from: 2,3-dihydroxybutanedioic acid; (1-hydroxyethan-1,1-diyl)bis(phosphonic acid); 2,3,4,5-tetrahydroxyhexanedioic acid; hydroxybutanedioic acid; 2-phosphonobutane-1,2,4tricarboxylic acid; 2,2′,2″, 2′″-(ethane-1,2-diyldinitrilo)tetraacetic acid; nitrilotriacetic acid; butanetetracarboxylic acid; 2-hydroxyphosphonoacetic acid; poly(prop-2-enoic acid); poly(Z)-butenedioic acid; polymeric carboxylic acids and their copolymers derived from one or more prop-2-enoic acid, (Z)-butenedioic acid, or sulfonated prop-2-enoic ...

TAGGED SCALE INHIBITOR COMPOSITIONS AND METHODS OF INHIBITING SCALE

Scale inhibitor compositions and methods of inhibiting scale formation generally include a tagged scale inhibiting (co)polymer including at least one scale inhibiting moiety and an imidazole moiety. The imidazole moiety fluoresces at a wavelength of about 424 nm and can be used to detect the amount of scale inhibitor present. 115-. (canceled)17. The water treatment solution of claim 16 , wherein the solvent is brine or water.18. The water treatment solution of claim 16 , wherein the scale inhibiting (co)polymer is in an amount of less than 35 parts per million.19. The water treatment solution of claim 16 , wherein the scale inhibiting (co)polymer is in an amount of less than 0.5 to 35 parts per million.20. The water treatment solution of claim 16 , wherein the imidazole moiety is at a weight percent of monomer of 2 to 20% of the scale inhibiting (co)polymer.21. The water treatment solution of claim 16 , wherein the average molecular weight is 1200 to 2000 Daltons.22. The water treatment solution of claim 16 , further comprising at least one additional tagged scale inhibiting material having an fluorescence emission signal different from the scale inhibiting (co)polymer. The present disclosure generally relates to tagged scale inhibition compositions and methods of inhibiting scale. More particularly, the present invention relates to imidazole tagged scale polymeric inhibitors for use in water treatment and/or oil field applications.Scale inhibiting polymers are often used in water treatment and oil field applications to minimize and/or prevent scale deposition. The deposition of scale can occur in the transport of aqueous mixtures and in subterranean rock formations due to the presence of water bearing alkaline earth metal cations such as calcium, barium, strontium, and the like as well as the presence of anions such as phosphate, sulfates, carbonates, silicates and the like. When these ions are in sufficient concentrations, a precipitate can form that builds up on ...

Ion Sequestration for Scale Prevention in High-Recovery Desalination Systems

Cations that can precipitate from an aqueous composition to produce scaling are sequestered by adding a multi-dentate ligand to the aqueous composition. The multi-dentate ligand bonds with the cation to form a non-scaling ionic complex; and the aqueous solution with the ionic complex is used in a process that produces substantially pure water from the aqueous composition, where the cation, absent formation of the ionic complex, is subject to scaling. The pH of the aqueous composition (or a brine including components of the aqueous composition) is then reduced to release the cation from the multi-dentate ligand; and the multi-dentate ligand, after the cation is released, is then reused in a predominantly closed loop. 1. A method for sequestering cations that can precipitate from an aqueous composition , the method comprising:adding a multi-dentate ligand to an aqueous composition that includes at least one type of cation that can precipitate from the aqueous composition to produce scaling; thenenabling the multi-dentate ligand to bond with the cation to form a non-scaling ionic complex; thenusing at least a portion of the aqueous solution in a process involving production of substantially pure water from the aqueous composition, where the cation, absent formation of the ionic complex, is subject to scaling;reducing the pH of the aqueous composition or of a brine including components of the aqueous composition to release the cation from the multi-dentate ligand; andreintroducing the multi-dentate ligand after the cation is released into additional aqueous composition to form additional non-scaling ionic complex in a predominantly closed loop.2. The method of claim 1 , wherein the cation includes at least one of the following: calcium claim 1 , barium claim 1 , strontium and magnesium.3. The method of claim 1 , wherein the aqueous composition includes flowback water or produced water from oil or gas extraction.4. The method of claim 1 , wherein the aqueous composition ...

AQUEOUS OIL-IN-WATER EMULSIONS OF ORGANIC AMINES

The present invention relates to aqueous oil-in-water emulsion containing: 1. An aqueous oil-in-water emulsion containing [{'br': None, 'sup': 1', '2, 'sub': n', '2, 'R—(NH—R)—NH\u2003\u2003(I)'}, 'wherein', 'n is 0, 1 or 2', {'sup': '1', 'Ris a linear or branched, acyclic hydrocarbon group having 12 to 22 carbon atoms;'}, {'sup': '2', 'sub': 2', '4, 'Ris C-C-alkanediyl;'}], 'a) 1 to 5% by weight, based on the total weight of the emulsion, of an oil phase comprising at least one organic amine of the formula (I)'}b) and water,where the aqueous oil-in-water emulsion does not contain more than 2% by weight of organic ingredients, which are different from the amines of formula (I), based on total amount of organic components contained in the aqueous oil-in-water emulsion, and where the organic amine of formula (I) comprises at least 90% by weight, based on the total amount of the organic amine of formula (I) contained in the aqueous oil-in-water emulsion, of an organic amine of formula (I) with n being 1 or 2,where the aqueous emulsion has at least one of the following properties:P.1: the number average particle diameter of the droplets of the oil phase, as determined by light microscopy of at least 50 droplets is in the range of 1 to 11 μm,P.2: the instability index as defined by the ratio of observed clarification to maximum clarification, as determined by centrifugation for 390 seconds at a gravitational acceleration of 2.23 g and a temperature of 25° C. is at most 0.025.2. The emulsion of claim 1 , wherein Rin formula (I) has 16 to 20 carbon atoms.3. The emulsion of claim 1 , wherein Rin formula (I) is a saturated straight chain hydrocarbon group or an unsaturated straight chain hydrocarbon group having 1 claim 1 , 2 or 3 C═C double bonds.4. The emulsion of claim 1 , wherein at least 70% by weight of the amine of formula (I) bear a hydrocarbon group Rhaving 18 carbon atoms claim 1 , said hydrocarbon group being a saturated straight chain hydrocarbon group or an ...

Tagged Scale Inhibiting Polymer Compositions and Methods of Inhibiting Scale Formation

Scale-inhibiting polymers comprising one or more scale-inhibiting units and one or more tagging units, wherein each tagging unit is formed from a compound of Formula I, II, III, or IV, or a salt, hydrate, salt hydrate, stereoisomer, dehydrate or derivative thereof. Scale-inhibiting compositions comprising the scale-inhibiting polymers, processes for determining a concentration of a scale-inhibiting polymer for inhibiting scale formation, and methods for preventing or controlling scale formation in systems comprising fluid circulation with the scale-inhibiting polymers are also disclosed herein.

Novel Modified Acid Compositions as Alternatives to Conventional Acids in the Oil and Gas Industry

An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids. 1. An aqueous modified acid composition comprising:a mineral acid and an alkanolamine in a molar ratio of not more than 15:1.2. A aqueous modified acid composition comprising:hydrochloric acid and an alkanolamine in a molar ratio of not more than 15:1.3. The aqueous modified acid composition according to claim 2 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 10:1.4. The aqueous modified acid composition according to claim 2 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 7.0:1.5. The aqueous modified acid composition according to claim 2 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 4.1:1.6. The aqueous modified acid composition according to claim 2 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not less than 3:1.7. The aqueous modified acid composition according to claim 2 , wherein the alkanolamine is selected from the group consisting of: monoethanolamine; diethanolamine; triethanolamine and combinations thereof.8. The aqueous modified acid composition according to claim 2 , wherein the alkanolamine is monoethanolamine.9. The aqueous modified acid composition according to claim 2 , wherein the alkanolamine is diethanolamine.10. The aqueous modified acid composition according to claim 2 , further comprising a metal iodide or iodate.11. The composition according to claim 1 , wherein the mineral acid is selected from the group consisting of: HCl claim 1 , nitric acid claim 1 , sulfuric acid claim 1 , sulfonic acid claim 1 , phosphoric acid claim 1 , and ...

FLUORESCENT POLYMERS FOR MONITORING ANTISCALANT CONCENTRATIONS IN INDUSTRIAL WATER SYSTEMS

The present invention relates to a fluorescently-tagged (co)polymer useful as a scale inhibitor in industrial water systems. Said (co)polymer comprises a (i) reactive fluorescent compound selected from a benzodiazole compound (ii) at least one monoethylenically unsaturated acid monomer, and (iii) optionally, at least one monoethylenically unsaturated acid-free monomer. 3. The fluorescently-tagged (co)polymer of comprising:(ii) at least one monoethylenically unsaturated acid monomer and(iii) optionally, at least one monoethylenically unsaturated acid-free monomer.4. The fluorescently-tagged (co)polymer of wherein(ii) the monoethylenically unsaturated acid monomer is selected from acrylic acid, methacrylic acid, crotonic acid, vinylacetic acid, maleic acid, maleic anhydride, 1,2,3,6-tetrahydrophthalic anhydride, 3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride, 5-norbornene-2,3-di-carboxylic anhydride, bicyclo-[2.2.2]-5-octene-2,3-dicarboxylic anhydride, 3-methyl-1,2,6-tetrahydrophthalic anhydride, 2-methyl-1,3,6-tetrahydrophthalic anhydride, itaconic acid, mesaconic acid, fumaric acid, citraconic acid, 2-acrylamido-2-methylpropanesulfonic acid, allylsulfonic acid, allylphosphonic acid, allyloxybenzenesulfonic acid, 2-hydroxy-3-(2-propenyloxy)-propanesulfonic acid, isopropenylphosphonic acid, isopropenylsulfonic acid, vinylphosphonic acid, styrenesulfonic acid, vinylsulfonic acid, and the alkali metal or ammonium salts thereof and(iii) if present, the monoethylenically unsaturated acid-free monomer is selected from methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, ethyl methacrylate, butyl methacrylate and isobutyl methacrylate; hydroxyalkyl esters of acrylic or methacrylic acids such as hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxyethyl methacrylate, hydroxypropyl methacrylate, acrylamide, methacrylamide, N-t-butylacrylamide, N-methylacrylamide, N,N-dimethyl-acrylamide, acrylonitrile, methacrylonitrile, allyl alcohol, phosphoethyl ...

Novel Modified Acid Compositions as Alternatives to Conventional Acids in the Oil and Gas Industry

An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids. 1. A method of use of a modified acid composition comprising a mineral acid and an alkanolamine in a molar ratio ranging from 3:1 to not more than 15:1 and having a pH of less than 1 in the construction industry said use being selected from the group consisting of: etching concrete and cleaning concrete from equipment and buildings.2. The method according to claim 1 , wherein the mineral acid is selected from the group consisting of: HCl claim 1 , nitric acid claim 1 , sulfuric acid claim 1 , sulfonic acid claim 1 , phosphoric acid claim 1 , and combinations thereof.3. The method according to claim 1 , wherein the mineral acid is hydrochloric acid.4. The method according to claim 1 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 10:1.5. The method according to claim 1 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 7.0:1.6. The method according to claim 1 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 4.1:1.7. The method according to claim 1 , wherein the alkanolamine is selected from the group consisting of: monoethanolamine; diethanolamine; triethanolamine and combinations thereof.8. The method according to claim 1 , wherein the alkanolamine is monoethanolamine.9. The method according to claim 1 , wherein the alkanolamine is diethanolamine.10. The method according to claim 1 , wherein modified acid compositions further comprises a corrosion inhibitor comprising a α claim 1 ,β-unsaturated aldehyde with no methyl group at the alpha position.11. A method of use of a modified acid composition ...

System and Method for Automated Control, Feed, Delivery Verification, and Inventory Management of Corrosion and Scale Treatment Products for Water Systems

A system and method of controlling the treatment of water systems comprises multiple feeders for separately feeding treatment products, in the form of concentrated, non-hazardous, liquids with a single active ingredient, to a water system to treat various issues, such as corrosion and biofilms. A sensor verifies delivery of the treatment product to the water system. A controller controls activation of each feeder to control a feed rate according to programmed functions. The controller receives signals from sensors, which can be used as inputs in calculating feed rates or feeder activation times according to the programed functions and can alter treatment product feed rates based on real time data regarding water system chemistry or flow rates. The controller can send and receive data, signals, alerts, alarms or changes in programming to or from remote users, remote computers, or a water system controller. 1. A treatment control system for treating water in a water system , the treatment control system comprising:a first container containing an initial volume of a first treatment product;a second container containing an initial volume of a second treatment product;optionally one or more of a third through a twelfth container containing an initial volume of a third through a twelfth treatment product;a feeder for each container to feed the treatment product in the container to the water system;a controller connected to each feeder to activate the feeders according to one or more programmed functions to control a feed initiation time and feed rate for each treatment product through each feeder; andwherein each treatment product is useful alone or in combination with another treatment product for treating one or more of corrosion, white rust, scale, or biological contamination in the water system.2. The treatment control system according to wherein the first treatment product comprises a single active ingredient claim 1 , the second treatment product comprises a single ...

INHIBTION OF SILICA SCALE USING HYDROPHOBICALLY-MODIFIED ALKYLENE OXIDE URETHANE COPOLYMER

A method for inhibiting silica scale formation in an aqueous system by adding a hydrophobically-modified alkylene oxide urethane copolymer anti-scalant to the water used in the aqueous system. 1. A method for inhibiting silica scale formation in an aqueous system comprising adding an anti-scalant to water used in the aqueous system , wherein the anti-scalant comprises a hydrophobically-modified alkylene oxide urethane copolymer.2. The method of wherein the aqueous system comprises a reverse osmosis system including a reverse osmosis membrane claim 1 , wherein the method comprises the steps of:adding the anti-scalant to a source of feed water containing silica, andpassing the resulting feed water through the reverse osmosis system such that a portion passes through the reverse osmosis membrane to produce a permeate stream having a reduced concentration of silica with the remaining portion of feed water forming a reject stream having a higher concentration of silica.3. The method of wherein the hydrophobically modified alkylene oxide urethane copolymer is nonionic.4. The method of wherein the hydrophobically modified alkylene oxide urethane copolymer comprises at least 50 wt % of alkylene oxide groups.5. The method of wherein the anti-scalant has a Mw of 1 claim 1 ,000 to 500 claim 1 ,000 Daltons.6. The method of wherein the anti-scalant comprises a hydrophobically modified ethoxylated urethane (HEUR).7. The method of wherein the hydrophobically modified alkylene oxide urethane copolymer comprises a plurality of urethane groups.8. The method of wherein the urethane groups serve as at least one of: linking groups to link alkylene oxide blocks and terminal groups.9. The method of wherein the water has a pH of less than 9.5.10. The method of wherein the feed water has a pH less than 9 and a silica content of at least 30 ppm claim 2 , and wherein the reject stream has a silica content of at least 100 ppm.11. The method of wherein from 1 to 1000 ppm of the anti-scalant is ...

METAL-CHELATING COMPOSITIONS AND THEIR USE IN METHODS OF REMOVING OR INHIBITING BARIUM SCALE

Metal-chelating compositions having the structure (1a) wherein: R, R, Rand Rare independently selected from the following groups: (i) hydrogen atom, (ii) hydrocarbon groups (R) containing 1-12 carbon atoms; (iii) halogen atoms; (iv) —P(R)(═O)OH groups; (v) —C(═O)OH groups; (vi) —S(═O)OH groups; and (vii) —OH groups, wherein Ris selected from hydrocarbon groups (R) and —OH; Rand Rmay optionally interconnect to form Ring A fused to the ring on which Rand Rare present; Rand Rmay optionally interconnect to form Ring B fused to the ring on which Rand Rare present; wherein Ring A and Ring B are optionally and independently substituted with one or more of groups (ii)-(vii). Methods of using the above-described compositions for chelating metal ions having an atomic number of at least 56 (e.g., Ba or Ra) are also described. 2. The composition of claim 1 , wherein at least one of Rand Ris (iv) —P(R)(═O)OH claim 1 , or at least one of Ring A and Ring B is present and is substituted with (iv).3. The composition of claim 1 , wherein Rand Rare both (iv) —P(R)(═O)OH.4. The composition of claim 1 , wherein: (a) Ris (v) —C(═O)OH claim 1 , or Ring A is present and is substituted with (v); and (b) Ris (vii) —OH claim 1 , or Ring B is present and is substituted with (vii).6. The method of claim 5 , wherein at least one of Rand Ris (v) —C(═O)OH claim 5 , or at least one of Ring A and Ring B is present and is substituted with (v).7. The method of claim 6 , wherein both Rand Rare (v).9. The method of claim 6 , wherein Ris (v) —C(═O)OH and either: Ris (vii) —OH claim 6 , or Ring B is present and is substituted with (vii).11. The method of claim 5 , wherein at least one of Rand Ris (vii) —OH claim 5 , or at least one of Ring A and Ring B is present and is substituted with (vii).12. The method of claim 5 , wherein at least one of Ring A and Ring B is present and is substituted with (vii) —OH.14. The method of claim 5 , wherein at least one of Rand Ris (iv) —P(R)(═O)OH claim 5 , or at least ...

INHIBITION OF SILICA SCALE USING A CHELATING AGENT BLENDED WITH ACID AND ALKYLENE OXIDE DERIVED POLYMER DISPERSANTS

A method of inhibiting silica and silicate scale formation via treating an aqueous system containing silica with an effective amount of a chelating agent blended with a polymeric dispersant in a weight ratio range from greater than 1.0:0.5 to less than 1.0:3.0, agent to dispersant, including blends in a weight ratio of 1:1. Specifically, the chelating agent is either EDTA or DTPA, while the polymer dispersant is an acid and alkylene oxide derived dispersant. 1. A method of inhibiting silica and metal silicate scale formation , said method comprising the steps of:treating an aqueous system comprising silica with an effective amount of a mixture of a chelating agent and an acid and alkylene oxide derived polymer dispersant;wherein said chelating agent is ethylenediaminetetraacetic acid (EDTA) or diethylene triamine pentaacetic acid (DTPA);wherein said acid and alkylene oxide derived polymer dispersant has a number average molecular weight from 500 Daltons to 40,000 Daltons; andwherein said chelating agent is mixed with said acid and alkylene oxide derived polymer dispersant in a weight ratio from greater than 1.0:0.5 to less than 1.0:3.0, agent to dispersant.2. The method of claim 1 , wherein said acid and alkylene oxide derived polymer dispersant is a polymerizable-acid graft polymer comprising from 3.0% to 35% by weight of an unsaturated grafting acid and an alkylene oxide polymer backbone claim 1 , said alkylene oxide polymer backbone having the following formula:{'br': None, 'sub': n', '2n', 'z', 'a, 'R″\ue8a0(OCH)OR′]'}wherein each R′ is independently selected from the group consisting of hydrogen, a methyl group, an ethyl group, and an amine groups;wherein R″ is independently selected from the group consisting of hydrogen, a methyl group, an ethyl group, and an amine group;wherein each “Z” has, independently, a value of from 4 to about 1,800;wherein “a” has a value of from 1 to 4; andwherein each “n” has, independently, a value of from 2 to 4, such that said ...

ACID GRAFTED EO-PO COPOLYMERS AS SILICA SCALE INHIBITORS

A method for inhibiting silica scale formation which treats aqueous systems with a polymerizable-acid graft copolymer that includes an unsaturated grafting acid and having a percent acid graft of between about 3 wt. % and about 35 wt. %, as well as an alkylene oxide polymer backbone. 2. The method of claim 1 , wherein said R′ is acyl radicals free of aliphatic unsaturation.3. The method of claim 1 , wherein R′ and R″ are not both a hydrogen atom.4. The method of claim 1 , wherein said grafting acid is selected from the group consisting of acrylic acid claim 1 , methacrylic acid claim 1 , itaconic acid claim 1 , maleic acid claim 1 , 2-acrylamido-2-methylpropylsulfonic acid (AMPS) claim 1 , 2-methacrylamido-2-methylpropylsulfonic acid claim 1 , styrene sulfonic acid claim 1 , vinylsulfonic acid claim 1 , ethylene glycol methacrylate phosphate claim 1 , vinyl phosphonic acid and mixtures thereof.5. The method of claim 1 , wherein “n”=2 or 3;wherein “a” has a value of 1;wherein each R′ or R″ independently selected from the group consisting of a hydrogen atom, hydrogen radicals, and acyl radicals; andwherein said alkylene oxide polymer backbone is either an ethylene oxide (“EO”) or propylene oxide (“PO”) polymer.6. The method of claim 1 , wherein said alkylene oxide polymer backbone is selected from the group consisting of oxyethylene (“EO”) and oxypropylene (“PO”).7. The method of claim 1 , wherein said alkylene oxide polymer backbone is a copolymer of EO and PO polymers having a weight ratio of from about 0:100 to about 100:0 of EO:PO.8. The method of claim 1 , wherein said alkylene oxide polymer backbone is a copolymer of EO and PO polymers having a weight ratio of from about 90:10 to about 10:90 of EO:PO.9. The method of claim 1 , wherein said alkylene oxide polymer backbone is a copolymer of EO and PO polymers having a weight ratio of from about 75:25 to about 25:75 of EO:PO.10. The method of wherein said polymer has a weight average molecular weight between ...

PROCESS FOR FORMING A DESCALING COMPOSITION

A process for forming a descaling composition has the steps of macerating a bone meal with a dimethylamine solution, digesting the macerated bone meal with hydrochloric acid, neutralizing the digested bone meal with calcium oxide, treating the neutralized bone meal with sulfuric acid, and applying a refluxing treatment with dimethylamine and hydrazine hydrate. The process further includes removing the macerated bone meal solids from the dimethylamine solution and transferring the removed solids to an extraction tower prior to the step of digesting. The hydrochloric acid is circulated through the macerated bone meal. The treated bone meal and the sulfuric acid is filtered so as to produce a liquid phase and a solids phase. The liquid phase contains a phosphate amine. The dimethylamine and hydrazine hydrate are added to the liquid phase. 1. A process for forming a descaling composition , the process comprising:macerating a bone with a dimethylamine solution;digesting the macerated bone meal with hydrochloric acid;neutralizing the digested bone meal with calcium oxide;treating the neutralized bone meal with sulfuric acid; andapplying a refluxing treatment with dimethylamine and hydrazine hydrate.2. The process of claim 1 , the step of macerating comprising:adding the bone meal to the dimethylamine solution.3. The process of claim 2 , the dimethylamine solution being of a 10% concentration claim 2 , the step of macerating being for a period of eight hours.4. The process of claim 1 , further comprising:removing the macerated bone meal solids from the dimethylamine solution; andtransferring removed macerated bone meal solids to an extraction tower prior to the step of digesting.5. The process of claim 1 , the step of digesting comprising:circulating the hydrochloric acid through the macerated bone meal.6. The process of claim 5 , the step of circulating being for a period of time of eight hours at room temperature.7. The process of claim 6 , the step of digesting further ...

INHIBITION OF SILICA SCALE USING AMINE-TERMINATED POLYOXYALKYLENE

A method for inhibiting silica scale formation in an aqueous system by adding an amine-terminated polyoxyalkylene anti-scalant to the water used in the aqueous system. 1. A method for inhibiting silica scale formation in an aqueous system comprising adding an anti-scalant to water used in the aqueous system , wherein the anti-scalant comprises an amine-terminated polyoxyalkylene.2. The method of wherein the aqueous system comprises a reverse osmosis system including a reverse osmosis membrane claim 1 , wherein the method comprises the steps of:adding the anti-scalant to a source of feed water containing silica, andpassing the resulting feed water through the reverse osmosis system such that a portion passes through the reverse osmosis membrane to produce a permeate stream having a reduced concentration of silica with the remaining portion of feed water forming a reject stream having a higher concentration of silica.3. The method of wherein the terminal amine comprises a tertiary amine.5. The method of wherein Ris selected from a Cto Chydrocarbon moiety.6. The method of wherein Ris hydrogen and Ris a Cto Chydrocarbon moiety.7. The method of wherein the anti-scalant has a Mw of 100 to 100 claim 1 ,000 Daltons.8. The method of wherein the water has a pH of less than 9.5.9. The method of wherein the feed water has a pH less than 9 and a silica content of at least 30 ppm claim 2 , and wherein the reject stream has a silica content of at least 100 ppm.10. The method of wherein from 1 to 1000 ppm of the anti-scalant is added to the water of the aqueous system. The invention relates to reducing the formation of silica deposits in aqueous systems.Problems associated with the formation of silica scale in aqueous systems are well documented. Depending upon the pH, temperature, silica concentration and presence of salts and polyvalent metal ions in the feed water used in such systems, different types of silica precipitate (“scale”) may form. For example at pH values above 9.5, ...

USE OF DI-IONIC COMPOUNDS AS CORROSION INHIBITORS IN A WATER SYSTEM

Disclosed herein are the methods of using di-cationic or di-anionic compounds, which are derived from primary amine through an aza-Michael addition with an activated olefin, in a corrosion control composition to mitigate corrosion of a surface in a water system. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used single quaternary compounds for mitigating corrosion for a metal surface in water systems. 2. (canceled)3. (canceled)4. The method according to claim 1 , wherein Ris Rand Ris a linear C-Calkyl claim 1 , alkenyl claim 1 , or alkynyl group.5. The method according to claim 1 , wherein Ris R—Z—(CH)— or R—Z(CH)— claim 1 , Z is NH claim 1 , and Ris a linear C-Calkyl claim 1 , alkenyl claim 1 , or alkynyl group.6. The method according to claim 1 , wherein Ris R—Z—(CH)— claim 1 , Z is O claim 1 , and Ris a linear C-Calkyl claim 1 , alkenyl claim 1 , or alkynyl group.7. (canceled)8. (canceled)9. (canceled)10. The method according to claim 1 , wherein Ris a C-Calkenyl group with at least one trans or cis double bond.11. The method according to claim 1 , wherein the corrosion control composition agent is a carrier claim 1 , wherein the carrier is water claim 1 , an organic solvent claim 1 , or a mixture thereof.12. The method according to claim 1 , wherein the corrosion control composition agent is a carrier and one or more additional corrosion inhibitors.13. The method according to claim 1 , wherein the corrosion control composition agent is a biocide claim 1 , wherein the biocide is chlorine claim 1 , hypochlorite claim 1 , ClO claim 1 , bromine claim 1 , ozone claim 1 , hydrogen peroxide claim 1 , peracetic acid claim 1 , peroxycarboxylic acid composition claim 1 , peroxysulphate claim 1 , glutaraldehyde claim 1 , dibromonitrilopropionamide claim 1 , isothiazolone claim 1 , terbutylazine claim 1 , polymeric biguanide claim 1 , methylene bisthiocyanate claim 1 , tetrakis hydroxymethyl ...

Polymers having chelating functionality

The present invention provides novel polymers having chelating functionality and comprising units derived from an ethylenically unsaturated aminocarboxylate monomer which comprises units derived from ethylenediamine triacetic acid or its salt and a polymerizable vinyl monomer. The polymerizable vinyl monomer may be selected from (0-, m-, p-)DVBMO, allyl glycidyl ether, and glycidyl (meth)acrylate. The polymer may also comprise units derived from one or more ethylenically unsaturated monomers.

HYDROPHOBICALLY MODIFIED POLYAMINE SCALE INHIBITORS

Hydrophobically modified Si-containing polyamines are useful for treating scale in industrial process streams. Preferred hydrophobically modified Si-containing polyamines are particularly useful for treating aluminosilicate scale in difficult-to-treat industrial process streams, such as in the Bayer alumina process streams, nuclear waste streams and kraft paper mill effluent streams. 1. A composition comprising a polymeric reaction product of:a polyamine,a first nitrogen-reactive compound, anda second nitrogen-reactive compound;wherein:{'sup': 4', '4', '4, 'sub': 2', '2', '1', '8', '6', '10, 'the polyamine comprises a (NR)-J-(NR) moiety, wherein J is an optionally substituted hydrocarbyl fragment comprising from about 2 to about 40 carbons, and each Ris independently H, optionally substituted C-Calkyl, or optionally substituted C-Caryl;'}{'sub': 3', '1', '20', '6', '12', '7', '20', '2', '20', '4', '1', '20', '6', '12', '7', '20', '2', '20, 'sup': 1', '1, 'the first nitrogen-reactive compound comprises a —Si(OR)group and a nitrogen-reactive group, wherein R is H, optionally substituted C-Calkyl, optionally substituted C-Caryl, optionally substituted C-Caralkyl, optionally substituted C-Calkenyl, Group I metal ion, Group II metal ion, or NR, wherein each Ris independently selected from H, optionally substituted C-Calkyl, optionally substituted C-Caryl, optionally substituted C-Caralkyl, and optionally substituted C-Calkenyl; and'}at least one of the polyamine and the second nitrogen-reactive compound comprises an optionally substituted hydrocarbyl radical comprising from about 2 to about 40 carbons.2. The composition of claim 1 , wherein the second nitrogen-reactive compound comprises at least two nitrogen-reactive moieties.4. The composition of claim 1 , wherein the polymeric reaction product has a weight average molecular weight of at least about 500.5. A method for reducing or eliminating scale in an industrial process comprising adding a composition according to ...

RHEOLOGY MODIFYING AGENTS FOR SLURRIES

Rheology modifying agents and methods of modifying the rheology of a slurry are disclosed, in addition to methods for the prevention of fouling. The slurry can be a lime slurry or a magnesium oxide slurry. The rheology modifying agent can be a low molecular weight anionic polymer, a high molecular weight polymer, a mixture of a low molecular weight anionic polymer and a high molecular weight polymer, a mixture of a high molecular weight polymer and a chelating agent, and a mixture of a chelating agent, a high molecular weight polymer, and a low molecular weight anionic polymer. 1. A method of modifying the rheology of a magnesium oxide slurry comprising the steps of:adding a rheology modifying agent to a magnesium oxide slurry, wherein the rheology modifying agent comprises a member selected from the group consisting of a low molecular weight anionic polymer, a mixture of a low molecular weight anionic polymer and a high molecular weight polymer, and a mixture of a chelating agent, a high molecular weight polymer, and a low molecular weight anionic polymer.2. The method of claim 1 , wherein the amount of the rheology modifying agent added to the magnesium oxide slurry is selected from the group consisting of about 10 ppm to about 300 ppm and about 30 ppm to about 250 ppm.3. The method of claim 1 , wherein the rheology modifying agent is selected from the group consisting of a composition comprising hydrolyzed polyacrylamide claim 1 , a chelating agent claim 1 , polymaleic acid claim 1 , and a copolymer comprising acrylic acid (AA) and 2-acrylamido-2-methylpropane sulfonic acid (AMPS) claim 1 , a low molecular weight poly acrylic acid claim 1 , a terpolymer comprising acrylic acid:acrylamide:sulfonated acrylamide claim 1 , a blend of polymaleic acid with an AA/AMPS copolymer claim 1 , and an AA/AMPS copolymer.4. The method of claim 1 , wherein the high molecular weight polymer has a molecular weight of greater than 1 claim 1 ,000 claim 1 ,000 and the low molecular ...

CORROSION AND FOULING MITIGATION USING NON-PHOSPHORUS BASED ADDITIVES

Water treatment compositions are provided that are effective for mitigating corrosion or fouling of surfaces in contact with aqueous systems. The water treatment compositions can include one or more azole compounds, one or more transition metals, and one or more dispersants, in addition to various other additives. The water treatment compositions can exclude phosphorus and still be effective. Methods for mitigating corrosion or fouling of a surface in an aqueous system are also provided. 1. A water treatment composition comprising:an effective corrosion-inhibiting amount of one or more azole compounds, an effective corrosion-inhibiting amount of one or more transition metals, and an effective corrosion-inhibiting amount of one or more dispersants, wherein said water treatment composition does not comprise phosphorus.2. The water treatment composition of claim 1 , wherein said one or more dispersants are present in an amount ranging from about 2 ppm to about 50 ppm.3. The water treatment composition of claim 1 , wherein said one or more azole compounds are present in an amount ranging from about 1 ppm to about 50 ppm.4. The water treatment composition of claim 1 , wherein said one or more azole compounds are present in an amount ranging from about 3 ppm to about 20 ppm.5. The water treatment composition of claim 1 , wherein said one or more transition metals are present in an amount ranging from about 2 ppm to about 4 ppm.6. The water treatment composition of claim 1 , wherein said one or more transition metals comprises zinc.7. The water treatment composition of claim 1 , wherein said one or more azole compounds is selected from the group consisting of tolyltriazole claim 1 , and a mixture of tolyltriazole with a butylbenzotriazole.8. The water treatment composition of claim 1 , wherein said one or more dispersants comprise a polymer claim 1 , a copolymer claim 1 , or a terpolymer claim 1 , wherein said polymer claim 1 , copolymer claim 1 , or terpolymer comprise a ...

Method of controlling scale in aqueous systems

A method of inhibiting scale in an industrial water system includes the steps of dosing the industrial water system with a water treatment polymer comprising at least 10 mol % of carboxylic acid monomer and a quaternized naphthalimide fluorescent monomer as disclosed herein, and then monitoring the fluorescence of the water system. The polymers are also useful for flocculation and coagulation in wastewater treatment.

Novel Modified Acid Compositions as Alternatives to Conventional Acids in the Oil and Gas Industry

An aqueous modified acid composition for industrial activities, said composition comprising: an alkanolamine and strong acid in a molar ratio of not less than 1:15, preferably not less than 1:10; it can also further comprise a metal iodide or iodate. Said composition demonstrates advantages over known conventional acids and modified acids. 1. A method of use of a modified acid composition comprising a mineral acid and an alkanolamine in a molar ratio ranging from 3:1 to not more than 15:1 and having a pH of less than 1 in the water treatment industry said use being selected from the group consisting of: adjusting pH and neutralizing alkaline effluent.2. The method according to claim 1 , wherein the mineral acid is selected from the group consisting of: HCl claim 1 , nitric acid claim 1 , sulfuric acid claim 1 , sulfonic acid claim 1 , phosphoric acid claim 1 , and combinations thereof.3. The method according to claim 1 , wherein the mineral acid is hydrochloric acid.4. The method according to claim 1 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 10:1.5. The method according to claim 1 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 7.0:1.6. The method according to claim 1 , wherein the hydrochloric acid and alkanolamine are present in a molar ratio of not more than 4.1:1.7. The method according to claim 1 , wherein the alkanolamine is selected from the group consisting of: monoethanolamine; diethanolamine; triethanolamine and combinations thereof.8. The method according to claim 1 , wherein the alkanolamine is monoethanolamine.9. The method according to claim 1 , wherein the alkanolamine is diethanolamine.10. A method of use of a modified acid composition comprising a mineral acid and an alkanolamine in a molar ratio ranging from 3:1 to not more than 15:1 and having a pH of less than 1 in the fertilizer/landscaping industry to adjust the pH level of a soil.11. The method ...

Water soluble pyranine polymers and method of making

A method of making a pyranine monomer composition comprises the step of reacting pyranine with a functionalizing agent that functionalizes the pyranine molecule with a polymerizable functional group to provide a composition of functionalized pyranine monomers, said functionalization reaction taking place in an aqueous reaction medium, and in the presence of a molar excess of said functionalizing agent, such that the functionalization reaction product is a monomer composition substantially free of unfunctionalized pyranine compound. The pyranine monomer compositions made by the method can be used to make fluorescent tagged water soluble polymer compositions that advantageously are substantially free of unpolymerized pyranine. The fluorescent tagged water soluble polymer compositions can be used in a method of inhibiting scale in industrial water systems.

COMPOSITION AND METHOD OF SCALE CONTROL IN REGULATED EVAPORATIVE SYSTEMS

This invention pertains to a synergistic blend comprised of a polyamino acid and an anionic carboxylic polymer. The blend is able to effectively stabilize the calcium salts that lead to scale formation in evaporative systems. This blend shows high levels of efficacy in the acidic high conductivity waters found in many evaporative systems such as sugar and biorefining. 1. A method for controlling , preventing and/or inhibiting the formation of scale and/or deposits in an aqueous system comprising;adding to the aqueous system a composition comprising a) a polyaspartic acid; and b) an anionic carboxylic polymer; wherein the polyaspartic acid and carboxylic polymer can be added to the aqueous system premixed, simultaneously or sequentially.2. The method according to claim 1 , wherein the polyaspartic acid and carboxylic polymer are premixed prior to being added to the system.3. The method of or claim 1 , wherein the scale and/or deposits are calcium claim 1 , magnesium claim 1 , oxalate claim 1 , sulfate claim 1 , and phosphate salts.4. The method of claim 3 , wherein the calcium and/or magnesium scale are from oxalates claim 3 , carbonates claim 3 , and silicates.5. The method of claim 1 , wherein the weight ratio of solids of component (a) to component (b) is from about 1:10 to 10:1.6. The method of claim 1 , wherein component b) of the composition is selected from at least one of homopolymers claim 1 , copolymers claim 1 , terpolymers and tetrapolymers7. The method of claim 1 , wherein component b) of the composition is selected from the group consisting of acrylic/sulfonic polymers claim 1 , acrylic/maleic copolymers claim 1 , phosphinocarboxylic claim 1 , acryl/maleic/sulfonated styrene claim 1 , acrylic/ethoxylate/acrylamide claim 1 , maleic/ethylacrylate/vinyl acetate and mixtures thereof.8. The method of claim 1 , where component a) of the composition has an average molecular weight from about 500 to about 10 claim 1 ,000.9. The method of claim 1 , wherein the ...

ANTISCALE DISPERSANT COMPOSITION AND USE THEREOF

The present disclosure relates to antiscale dispersant compositions. The compositions may include various components. The compositions may be used in connection with gray and/or black water processing in a coal gasification system. The compositions are useful for inhibiting the deposition of various materials, such as calcium carbonate, calcium phosphate, iron, aluminum, silicate, calcium sulfate, and any suspended solids in the water. 1. A composition comprising:a first component comprising a polymer, wherein the polymer comprises a monomer selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, fumaric acid, itaconic acid, a salt of acrylic acid, a salt of methacrylic acid, a salt of maleic acid, a salt of fumaric acid, a salt of itaconic acid, and any combination thereof; anda second component comprising a copolymer, wherein the copolymer comprises a sulfonate monomer and at least one of acrylic acid or a salt of acrylic acid.2. The composition of claim 1 , wherein the sulfonate monomer is selected from the group consisting of 2-acrylamide-2-methylpropanesulfonic acid salt claim 1 , allylsulfonate claim 1 , methyl allylsulfonate claim 1 , meta-styrenesulfonic acid salt claim 1 , ortho-styrenesulfonic acid salt claim 1 , para-styrenesulfonic acid salt claim 1 , and any combination thereof.3. The composition of wherein the first component comprises from about 30 weight % to about 80 weight % of acrylic acid or a salt of acrylic acid.4. The composition of wherein the second component comprises from about 30 weight % to about 80 weight % of acrylic acid or a salt of acrylic acid and about 10 weight % to about 60 weight % of the sulfonate monomer.6. The composition of further comprising a third component claim 1 , wherein the third component comprises an organophosphine compound.7. The composition of claim 6 , wherein the organophosphine compound is selected from the group consisting of 2-phosphonobutane-1 claim 6 ,2 claim 6 ,4-tricarboxylic ...

PARTICLES CONTAINING ONE OR MORE CONTROLLED RELEASE CROSS-LINKED ACTIVE AGENTS

The present invention is directed to a cross-linked scale control agent particle comprising: a scale control agent and a cross-linker. The scale control agent is cross-linked by the cross-linker. The present invention is also directed to a cross-linked organic-based crystalline inhibitor particle comprising: an organic-based crystalline inhibitor and a cross-linker. The organic-based crystalline inhibitor is cross-linked by the cross-linker. The present invention is also directed to the use of cross-linkers which can also act as benefit agents and to the use of capping and extension agents which act as further benefit agents The present invention is further directed to a particle comprising more than one cross-linked active agents; the active agent may be a combination of a scale control agent and an organic-based crystalline inhibitor. The present invention is also directed to a method for producing the particles according to the present invention and methods for performing a mechanical fracturing operation, for reducing scale build up in an oil well and a cooling tower using the particles according to the present invention. 1. A cross-linked scale control agent particle comprising:a scale control agent; anda cross-linker,wherein the scale control agent is cross-linked by the cross-linker by ester bonds, amide bonds, imide bonds, phosphoester bonds, or combinations thereof,wherein the size of the particle is from about 50 microns to about 4000 microns,wherein the amount of the scale control agent in the particle is from about 30 wt % to about 95 wt % of the particle.2. (canceled)3. (canceled)4. (canceled)5. The cross-linked scale control agent particle of wherein the scale control agent is selected from the group consisting of polymers claim 1 , oligomers claim 1 , copolymers claim 1 , and small molecules of carboxylates claim 1 , acrylates claim 1 , sulfates claim 1 , sulfonates claim 1 , phosphonates claim 1 , phosphinos claim 1 , and mixtures thereof.6. ( ...

COMPOSITION AND METHOD FOR CONTROLLING SCALE IN INDUSTRIAL WATER SYSTEMS

A fluorescent water treatment polymer comprises at least one water soluble carboxylic acid monomer other than maleic acid, at least one sulfonated pyrene-containing fluorescent monomer, and at least one phosphino group wherein the phosphorous atom of the phosphino group is in the polymer backbone. Additional monomers can be present, with the proviso that if maleic acid is present it comprises no greater than 75 mol % of the polymer. Surprisingly, it has been found that when the phosphino group is present the polymers exhibit an unexpectedly strong fluorescent signal strength. The signal strength of the fluorescent monomer in the polymer is further enhanced when the polymer comprises no greater than 75 mol % maleic acid. 2. The fluorescent water treatment of polymer of wherein said water soluble carboxylic acid monomer other than maleic acid is selected from one or more of the group consisting of acrylic acid claim 1 , methacrylic acid claim 1 , itaconic acid claim 1 , citraconic acid claim 1 , mesaconic acid claim 1 , glutaconic acid claim 1 , aconitic acid claim 1 , ethacrylic acid claim 1 , alpha-chloro-acrylic acid claim 1 , alpha-cyano acrylic acid claim 1 , alpha-chloro-methacrylic acid claim 1 , alpha-cyano methacrylic acid claim 1 , beta methyl-acrylic acid (crotonic acid) claim 1 , beta-acryloxy propionic acid claim 1 , sorbic acid claim 1 , alpha-chloro sorbic acid claim 1 , angelic acid claim 1 , tiglic acid claim 1 , p-chloro cinnamic acid claim 1 , monomethyl maleate claim 1 , monoethyl maleate claim 1 , salts and anhydrides of any of the foregoing claim 1 , and mixtures of any of the foregoing.4. The fluorescent water treatment polymer of further comprising maleic acid in an amount no greater than 75 mol %.5. The fluorescent water treatment polymer of further comprising a phosphorous containing group selected from phosphono groups and phosphate-containing monomers.6. The fluorescent water treatment polymer of further comprising a sulfonic containing ...

Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems

The present disclosure relates to methods and compositions for making and using fluorescent monomers which are synthesized by reacting a substituted or non-substituted benzoxanthene anhydride with an amine and with a moiety containing a polymerizable group. Such monomers are useful for the preparation of tagged treatment polymers. Such tagged treatment polymers are useful as scale inhibitors in industrial water systems.

METHODS OF REDUCING SCALANT FORMATION

Embodiments of the present disclosure provide for compositions, methods of reducing scale, and the like. In an embodiment a method can include adding the composition, as described herein, to a desalination system in need of scale treatment, in an amount effective to reduce scale formation in the desalination system. 1. A method of reducing calcium carbonate and calcium sulfate scale in a desalination system , comprising:disposing a composition in an aqueous solution in the desalination system, wherein the composition includes an active substance that is a carboxylated polymer that has been neutralized with an organic amine; andinhibiting the formation of a scale on the one or more surfaces of the desalination system, wherein the scale is selected from the group consisting of calcium carbonate, calcium sulfate, and a combination thereof.2. The method of claim 1 , wherein the composition is at least 50% biodegradable over a time period of about 28 days.3. The method of claim 1 , wherein the carboxylated polymer is selected from the group consisting of: a polyacrylic acid homopolymer claim 1 , a polyacrylic acid copolymer claim 1 , a maleic acid homopolymer claim 1 , and a combination thereof.4. The method of claim 1 , wherein the carboxylated polymer is a polyacrylic acid homopolymer or a polyacrylic acid copolymer.5. The method of claim 1 , wherein the neutralized carboxylated polymer is in an aqueous solution having a pH at least 6.0.6. The method of claim 4 , wherein the amount of acrylic acid in the polyacrylic acid copolymer is greater than about 70 mol %.7. The method of claim 4 , wherein the amount of acrylic acid in the polyacrylic acid copolymer is greater than about 85 mol %.8. The method of claim 4 , wherein the amount of acrylic acid in the polyacrylic acid copolymer is greater than about 95 mol %.9. The method of claim 1 , wherein the desalination system is a reverse osmosis desalination system.10. The method of claim 1 , wherein the active substance of ...

Composition and Method for Inhibiting Corrosion

A composition and method of inhibiting corrosion and white rust on metal components in a water system. The composition preferably comprises an amino-acid based polymer (most preferably a polyaspartic acid or a salt thereof), hydroxyphosphonoacetic acid, and a second phosphonic acid (preferably a phosphonocarboxylic acid), and does not require the use of regulated metals. The composition is effective even in the presence of biocides. A preferred method of inhibiting white rust comprises adding an amino-acid based polymer or hydroxyphosphonoacetic acid or both to the water system. A preferred method of inhibiting corrosion or white rust comprises adding an amino-acid based polymer, hydroxyphosphonoacetic acid, and a phosphonocarboxylic acid to the water system. Preferably the active concentrations are at least 3 ppm each of the amino-acid based polymer and hydroxyphosphonoacetic acid when added to a volume of water in the water system. 1. A method of treating water systems to inhibit white rust formation on galvanized steel components in the water system , the method comprising adding an effective amount of:an amino-acid based polymer; orhydroxyphosphonoacetic acid or its water soluble salt; orboth an amino-acid based polymer and hydroxyphosphonoacetic acid or its water soluble salt to the water in the water system; andwherein no tin is added to the water in the water system when the amino-acid based polymer is added to the water.2. The method of wherein the effective amount is an amount that when added to a volume of water in the water system provides an active concentration of at least 3 ppm of the amino-acid based polymer or at least 3 ppm of the hydroxyphosphonoacetic acid or both in the water system.3. The method of wherein the effective amount is an amount that when added to the volume of water in the water system provides an active concentration of 3 ppm-50 ppm of the amino-acid based polymer or an active concentration of 3 ppm-50 ppm of the ...

Hydrotesting and Mothballing Composition and Method of using Combination Products for Multifunctional Water Treatment

This invention relates to a composition, comprising a) at least one quaternary ammonium compound of the formula (I) wherein R is a C 5 to C 21 aliphatic hydrocarbon group, X is an anionic counter ion, and R a , R b are selected from the group consisting of hydrogen, methyl, ethyl, allyl, propyl, butyl, phenyl or benzyl residues, b) ammonium bisulfite or sodium bisulfite, c) glutaraldehyde or THPS, and d) at least one organic dye.

Composition and Method for Inhibiting Corrosion and Scale

A composition and method of inhibiting corrosion, white rust, and scale formation on components in a water system. The composition preferably comprises an amino-acid based polymer (most preferably a polyaspartic acid or a salt thereof), hydroxyphosphonoacetic acid, and a second phosphonic acid (preferably a phosphonocarboxylic acid), and does not require the use of regulated metals. The composition is effective even in the presence of biocides. A preferred method of inhibiting white rust comprises adding an amino-acid based polymer or hydroxyphosphonoacetic acid or both to the water system. A preferred method of inhibiting corrosion, white rust, and scale formation comprises adding an amino-acid based polymer, hydroxyphosphonoacetic acid, and a phosphonocarboxylic acid to the water system. Preferably the active concentrations are at least 3 ppm each of the amino-acid based polymer and hydroxyphosphonoacetic acid when added to a volume of water in the water system. 1. A method of treating a water system to inhibit corrosion or to inhibit scale over a range of water LSI values of −2.5 to 3 , the method comprising adding an effective amount of an amino-acid based polymer , hydroxyphosphonoacetic acid , and a second phosphonic acid to the water in the water system.2. The method of wherein the second phosphonic acid is a phosphonocarboxylic acid and the water has an LSI greater than 0.2.3. The method of wherein the effective amount is an amount that when added to a volume of water in the water system provides an active concentration of at least 2 ppm of the amino-acid based polymer claim 1 , at least 2 ppm of the hydroxyphosphonoacetic acid claim 1 , and at least 1.5 ppm of the phosphonocarboxylic acid in the water system.4. The method of wherein the effective amount is an amount that when added to the volume of water in the water system provides an active concentration of 2 ppm-50 ppm of the amino-acid based polymer claim 3 , an active concentration of 2 ppm-50 ppm of ...

PHOSPHORUS-FREE CORROSION AND SCALE INHIBITOR USED IN CIRCULATING COOLING WATER OF CENTRAL AIR CONDITIONING AND ITS PREPARATION METHOD

A phosphorus-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning is provided, which contains tourmaline, green corrosion and scale inhibitor, zinc salt and the like, wherein the content of the tourmaline is 5-500 g/t (calculated based on solid form); the content of the green corrosion and scale inhibitor is 5-50 g/t (calculated based on liquid form); and the content of the zinc salt is 0.2-0.8 g/t (calculated based on solid form), wherein the tourmaline includes dravite, schorlite, elbaite, manganese tourmaline, uvite or the like. The green corrosion and scale inhibitor contains any one, or two or three of polyaspartic acid, polyepoxysuccinic acid and polymaleic acid. Copper corrosion can be effectively inhibited by adding 0.2-2 g/t of benzotriazole (calculated based on solid form) into copper-containing devices. Also disclosed is a method of preparing the phosphorous-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning. 19-. (canceled)10. A phosphorus-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning , comprising tourmaline , green corrosion and scale inhibitor and zinc salt , wherein a content of the tourmaline is 5-500 g/t calculated based on solid form , a content of the green corrosion and scale inhibitor is 5-50 g/t calculated based on liquid form , and a content of the zinc salt is 0.2-0.8 g/t calculated based on solid form.11. The phosphorus-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning according to claim 10 , wherein the tourmaline is at least one of dravite claim 10 , schorlite claim 10 , elbaite claim 10 , manganese tourmaline claim 10 , and uvite.12. The phosphorus-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning according to claim 10 , wherein the zinc salt is any one or a mixture of zinc sulfate and zinc chloride.13. The ...

MATERIAL FOR REDUCING THE CONTENTS OF POLLUTING AND/OR UNWANTED SUBSTANCES IN A LIQUID

A material for reducing the content of polluting and/or unwanted substances in a liquid includes at least one polymeric and/or inorganic base, suitable to be immersed in the liquid, having at least a surface, whereto is bonded at least one catalyst of the degradation reaction of inorganic salts in gaseous substances. The catalyst, whose function is to reduce the energy required for the activation of said reaction and to accelerate its progress, is an enzyme preferably selected among the lyase group, the hydrolase group and the oxidoreductase group. 1. A material for reducing the content of polluting and/or unwanted substances in a liquid , comprising:at least a polymeric and/or inorganic base, suitable to be immersed in said liquid, having at least a surface, whereto is bonded at least one catalyst of the degradation reaction of inorganic salts in gaseous substances,wherein said catalyst, whose function is to reduce the energy required for the activation of said reaction and to accelerate the progress of said reaction, being an enzyme selected among the lyase group, the hydrolase group and the oxidoreductase group.2. The material according to claim 1 , wherein said catalyst is bonded to said surface of said polymeric and/or inorganic base in a covalent or crosslinked way.3. The material according to claim 1 , wherein said catalyst is an enzyme selected in the group of lyases.4. The material according to claim 1 , wherein said polymeric base is made of polyamide.5. The material according to claim 1 , wherein said polymeric and/or inorganic base is included in a body suitable to be immersed in the container of the liquid to be treated claim 1 , so as to initiate the activity of said catalyst by simple contact claim 1 , without stirring and without forced fluid circulation.6. The material according to claim 1 , comprising said catalyst in a concentration comprised between 0.0001% and 30% claim 1 , wherein the percentages refer to the total weight of said polymeric base ...

TERPOLYMERIZED CORROSION AND SCALE INHIBITOR USED IN CIRCULATING COOLING WATER OF CENTRAL AIR CONDITIONING AND ITS PREPARATION METHOD

A terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning, containing tourmaline, polyaspartic acid, polyepoxysuccinic acid, polymaleic acid, etidronic acid, zinc salt, and the like, wherein the content of the tourmaline is 5-500 g/t (calculated based on solid form); the content of polyaspartic acid, polyepoxysuccinic acid, polymaleic acid and etidronic acid is 2-60 g/t (calculated based on liquid form); and the content of the zinc salt is 0.2-0.8 g/t (calculated based on solid form), is provided. Also disclosed is a method of preparing the terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning. 19-. (canceled)10. A terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning , comprising: tourmaline , a copolymer and zinc salt , wherein the copolymer is a polymer of any three or four of polyaspartic acid , polyepoxysuccinic acid , polymaleic acid and etidronic acid; wherein a content of tourmaline is 5-500 g/t calculated based on solid form , a content of the copolymer is 2-60 g/t calculated based on liquid form; and a content of the zinc salt is 0.2-0.8 g/t calculated based on solid form.11. The terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning according to claim 10 , wherein the tourmaline is at least one of dravite claim 10 , schorlite claim 10 , elbaite claim 10 , manganese tourmaline claim 10 , and uvite.12. The terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning according to claim 10 , wherein the zinc salt is any one or a mixture of zinc sulfate and zinc chloride.13. The terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning according to claim 10 , wherein the terpolymerized corrosion and scale inhibitor further comprises 0.2-2 g/t calculated based on ...

USE OF PHOSPHOTARTARIC ACID AND THE SALTS THEREOF FOR THE TREATMENT OF WATER IN WATER-CONDUCTING SYSTEMS

The present invention relates to the use of phospho-tartaric acid and/or the salts thereof for the treatment of water in water-conducting systems. 1. The use of phosphotartaric acid and the salts thereof for the treatment of water in water-conducting systems.2. The use as claimed in claim 1 , wherein phosphotartaric acid is added to water-conducting systems in an amount of 0.1 to 10000 mg claim 1 , preferably 0.2 to 1000 mg claim 1 , particularly preferably 0.3 to 300 mg claim 1 , based on one liter of the water-conducting system.3. The use as claimed in claim 1 , wherein the water of the water-conducting system has a conductivity in the range of 1 to 200 000 μS/cm claim 1 , preferably in the range of 5 to 2000 μS/cm claim 1 , particularly preferably in the range of 10 to 5000 μS/cm.4. The use as claimed in claim 1 , wherein the phosphotartaric acid and/or the salts thereof is used in water-conducting systems having a calcium hardness in the range of 0 to 30 mol claim 1 , preferably in the range of 0.1 to 20 mol claim 1 , particularly preferably in the range of 0.5 to 15 mol claim 1 , based on one cubic meter of liquid of the water-conducting system.5. The use as claimed in in the form of one or more alkali metal salts and/or one or more ammonium salts.6. The use as claimed in as corrosion inhibitor.7. The use as claimed in as scale inhibitor.8. The use as claimed in claim 1 , wherein phosphotartaric acid and/or the salts thereof is used as constituent a) together with at least one further constituent b) and/or c) claim 1 , wherein constituent b) is selected from aliphatic di- claim 1 , tri- and oligocarboxylic acids comprising up to 6 carboxylic acid groups claim 1 , aliphatic monocarboxylic acids having at least one hydroxyl group claim 1 , amino acids claim 1 , salts thereof and mixtures thereof claim 1 , and constituent c) is selected from inorganic polyphosphoric acid claim 1 , meta-polyphosphoric acid and salts thereof and water-soluble organic phosphonic ...

Composition and Method for Inhibiting Corrosion

A composition and method of inhibiting corrosion and white rust on metal components in a water system. The composition preferably comprises an amino-acid based polymer (most preferably a polyaspartic acid or a salt thereof), hydroxyphosphonoacetic acid, and a second phosphonic acid (preferably a phosphonocarboxylic acid), and does not require the use of regulated metals. The composition is effective even in the presence of biocides. A preferred method of inhibiting white rust comprises adding an amino-acid based polymer or hydroxyphosphonoacetic acid or both to the water system. A preferred method of inhibiting corrosion or white rust comprises adding an amino-acid based polymer, hydroxyphosphonoacetic acid, and a phosphonocarboxylic acid to the water system. Preferably the active concentrations are at least 3 ppm each of the amino-acid based polymer and hydroxyphosphonoacetic acid when added to a volume of water in the water system. 1. A method of treating water systems to inhibit corrosion on non-galvanized steel and other metal components in the water system , the method comprising:adding an amino-acid based polymer to the water in the water system;adding a first phosphonic acid or its water soluble salt to the water.2. The method of wherein the adding step provides an active amount of amino-acid based polymer that is equal to or greater than an active amount of the first phosphonic acid or its water soluble salt added.3. The method of wherein the adding steps provide an active concentration of 3 ppm-50 ppm of the amino-acid based polymer and an active concentration of 3 ppm-50 ppm of the first phosphonic acid in a volume of water in the water system; andwherein the first phosphonic acid is hydroxyphosphonoacetic acid.4. The method of wherein the water has a total hardness of 60 ppm or less CaCO.5. The method of wherein the water has a pH of 7-9.6. The method of wherein the water has a contains a biocide.7. The method of wherein the water has a LSI less than zero ...

Composition Useful in Sulfate Scale Removal

The present invention discloses a novel aqueous composition for use in removing petroleum-contaminated barium sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: LiDTPA; NaDTPA; KDTPA; CsDTPA; NaEDTA; KEDTA; TEAHDTPA; and TBAHDTPA; a scale removal enhancer; and a non-ionic surfactant. There is also disclosed methods to use such compositions. 1. A method of removing barium sulfate scale contaminated with at least one petroleum product , said method comprising: [{'sub': 5', '5', '5', '5', '4', '4', '4', '5, 'a chelating agent selected from the group consisting of: LiDTPA; NaDTPA; KDTPA; CsDTPA; NaEDTA; KEDTA; TEAHDTPA; and TBAHDTPA;'}, 'optionally, a scale removal enhancer; and', 'a non-ionic surfactant;, 'providing a liquid composition comprisingexposing a surface contaminated with said barium sulfate scale and said at least one petroleum product to the liquid composition;allowing sufficient time of exposure to remove said barium sulfate scale and said at least one petroleum product from the contaminated surface.2. The method according to claim 1 , wherein the scale removal enhancer is selected from the group consisting of: potassium carbonate; potassium formate; CsCOOH; CsCO; and combinations thereof.3. An aqueous composition for use in removing petroleum-contaminated barium sulfate scale from a surface contaminated with such claim 1 , said composition comprising:{'sub': 5', '5', '5', '5', '4', '4', '4', '5, 'a chelating agent and a counterion component selected from the group consisting of: LiDTPA; NaDTPA; KDTPA; CsDTPA; NaEDTA; KEDTA; TEAHDTPA; and TBAHDTPA;'}a scale removal enhancer; anda non-ionic surfactant.4. The aqueous composition according to claim 3 , wherein the scale removal enhancer is selected from the group consisting of: potassium carbonate; potassium formate; cesium formate and cesium carbonate and combinations thereof.5. The aqueous ...

IRON SULFIDE SCALE CONTROL AGENT FOR GEOTHERMAL WELLS

The disclosure relates to improved methods for inhibiting the formation and deposition of sulfide and silica scale in aqueous systems. In particular, the methods include injecting a composition into an aqueous system or wellbore. The composition includes a sulfide scale inhibitor and a silica scale inhibitor. The sulfide scale inhibitor may be a copolymer of acrylic acid or methacrylic acid and an anionic monomer. The silica scale inhibitor may be a copolymer of acrylic acid or methacrylic acid and an alkoxylated monomer. 1. A method for sulfide and silica scale inhibition or reduction in an aqueous system , comprising:injecting a composition into the aqueous system, wherein the composition comprises a sulfide scale inhibitor and a silica scale inhibitor.2. The method of claim 1 , wherein the sulfide scale inhibitor comprises a copolymer of acrylic acid or methacrylic acid and an anionic monomer.3. The method of claim 1 , wherein the silica scale inhibitor comprises a copolymer of acrylic acid or methacrylic acid and an alkoxylated monomer.4. The method of claim 2 , wherein the anionic monomer is selected from the group consisting of 2-acrylamido-2-methylpropane sulfonic acid (AMPS) claim 2 , styrene sulfonic acid claim 2 , 2-methyacrylimido-2-methylpropylsulfonic acid claim 2 , vinyl sulfonic acid claim 2 , sulfoalkyl acrylate claim 2 , sulfoalkyl methacrylate claim 2 , allyl sulfonic acid claim 2 , 3-methacrylamido-2-hydroxypropylsulfonic acid claim 2 , any salt thereof claim 2 , and any combination thereof.5. The method of claim 3 , wherein the alkoxylated monomer is selected from the group consisting of hydroxypolyethoxy allyl ether (AAE) claim 3 , 3-allyloxy-1 claim 3 ,2-propanediol claim 3 , diethylene glycol monoallyl ether claim 3 , tetraethylene glycol methyl vinyl ether claim 3 , ethylene glycol vinyl ether claim 3 , polyethoxy methacrylate claim 3 , 1-allyloxy-2-hydroxypropane sulfonic acid claim 3 , any salt thereof claim 3 , and any combination thereof. ...

Novel Corrosion Inhibitors

Disclosed are novel compounds and methods useful in applications relating to industrial water systems. The compounds of the present invention are nitrogen-containing heterocyclic compounds comprising a benzotriazole covalently bonded to a benzimidazole moiety, and provide enhanced protection against corrosion of metals in aqueous systems. The compounds of the present invention are generally resistant to halogen attack and provide good corrosion resistance in the presence of oxidizing halogen-based biocides.

METHODS OF INHIBITING SALT PRECIPITATION AND CORROSION

Inhibiting precipitation of salt from an aqueous solution by providing an aqueous solution of salt dissolved therein, and contacting the aqueous solution with an amount of an organic dinitrile compound at a concentration sufficient to inhibit precipitation of crystallized salt from the aqueous solution under a set of conditions. The method of may be useful in a subterranean formation drilling operation, a subterranean formation treatment operation or a squeeze treatment. The organic dinitrile compound may be present in the aqueous solution at less than about ppm, or an amount greater than about ppm. In some embodiments, the organic dinitrile compound is admixed with a corrosion inhibitor. 1. A method preventing crystal growth and/or corrosion in a fluid comprising: {'br': None, 'NC—R—CN'}, 'contacting the fluid with an organic dinitrile compound, wherein the organic dintrile compound is selected from the group consisting of organic dinitrile compounds having the chemical formulawhere R is an alkane, alkene, alkyne, aromatic group, or any mixture thereof.2. The method of claim 1 , wherein the fluid is an aqueous salt solution claim 1 , and an amount of salt precipitation from the aqueous solution that would otherwise occur from the aqueous solution under the essentially identical conditions is reduced by contacting the aqueous solution with the organic dinitrile compound.3. (canceled)4. The method of claim 1 , wherein the organic dinitrile compound is selected from the group consisting of dinitrile compounds having the chemical formula:{'br': None, 'sub': m', 'n, 'NC—CH—CN'}where m is an integer from 2 to 10 and n is an integer from 4 to 20.5. The method of as used in a subterranean formation drilling operation.6. The method of as used is a subterranean formation treatment operation.76. The method of wherein the treatment operation is a squeeze treatment.8. The method of claim 1 , wherein the organic dinitrile compound is present in the fluid at a concentration in ...

NANOSIZED SCALE INHIBITORS FOR INCREASING OILFIELD SCALE INHIBITION TREATMENT LIFETIME

The present disclosure provides nanosized scale inhibitors (NSI) that can extend a well treatment lifetime with high scale inhibitor retention and the ability to provide slow and sustained scale inhibitor release. The NSI can be in the form of particles where the particle size is in the nanometer range, the NSI can be suitable for applications in both formation rock and fractures. During hydraulic fracturing, the NSI can be mixed and pumped with the fracturing fluid into formation rock and fractures as a one-step process to cut the treatment cost, and the NSI can penetrate readily into the secondary fracture networks created in tight shale formations. 1. A composition , comprising:a liquid; andcrosslinked polymeric scale inhibitor particles suspended in the liquid, a polymer synthesized from at least a monomer selected from (alkyl)acrylic acid monomers, hydroxyalkyl (alkyl)acrylate phosphonate monomers, hydroxyalkyl (alkyl)acrylate phosphate monomers, α,β-unsaturated carboxylic acids, α,β-unsaturated esters, α,β-unsaturated anhydrides, brine-compatible monomers, salts thereof, and any combination thereof; and', 'a crosslinker linked to the polymer via hydrolyzable bonds,, 'wherein the crosslinked polymeric scale inhibitor particles comprisewherein the composition is configured to inhibit scale formation in a formation rock in an oil and gas field.2. The composition of claim 1 , wherein the particles have an average maximum dimension of 1 nm to 100 μm.3. The composition of claim 1 , wherein the liquid comprises water.4. The composition of claim 1 , wherein the liquid comprises dissolved inorganic salts.5. The composition of claim 1 , wherein the liquid is brine.6. The composition of claim 1 , wherein:the (alkyl)acrylic acid monomers and salts thereof are selected from acrylic acid, methacrylic acid, sodium acrylate, sodium methacrylate, ethylacrylic acid, sodium ethylacrylate, and any combination thereof;the hydroxyalkyl (alkyl)acrylate phosphate is selected from 2- ...

Corrosion inhibitor for soft water circulation heating and cooling system and preparation method of corrosion inhibitor

A corrosion inhibitor for a soft water circulation heating and cooling system, wherein the corrosion inhibitor is pentapentanol core hyperbranched macromolecule functionalized by isothiourea and carboxyl, which has a chemical formula of CHO{COC(CH)[CHOCOCHCH(COOH)SC(NH)NH]}. The corrosion inhibitor provided by the present invention is non-phosphorus, biodegradable, non-toxic, low in cost and has good corrosion inhibition effect. Moreover, it has excellent corrosion inhibition performance for circulating heating and cooling systems using soft water as the water source, and can significantly improve the reuse rate of circulating water. The present invention also provides a preparation method of the corrosion inhibitor, which is simple, easy to obtain raw materials and easy to industrialize. 2. A preparation method of the corrosion inhibitor for the soft water circulation heating and cooling system as recited in claim 1 , the preparation method comprising steps of:(S1) under nitrogen protection and room temperature, evenly mixing 1,2,3,4,5-pentapentanol, 2,2-dimethylolpropionic acid, and p-toluene sulfonic acid, heating to 140-150° C., performing reaction for 3-5 h under atmospheric pressure, perform reaction for 3-5 h under vacuum conditions, and obtaining 1,2,3,4,5-penta(2,2-dimethylolpropionic acid) amyl alcohol ester;{'sub': 5', '7', '5', '3', '2', '2', '5, '(S2) cooling the 1,2,3,4,5-penta(2,2-dimethylolpropionic acid) amyl alcohol ester obtained by the step of (S1) to 70-80° C., adding a first amount of acetic acid for dissolving, and then adding a mixture of maleic anhydride and a second amount of acetic acid, performing reaction for 3-5 h, and obtaining an acetic acid solution containing hyperbranched macromolecules with carboxyl-terminated pentapentanol core, wherein a chemical formula of the hyperbranched macromolecules with carboxyl-terminated pentapentanol core is CHO[COC(CH)(CHOCOCH═CHCOOH)]; and'}(S3) cooling the acetic acid solution containing ...

Method of conditioning stagnant and flowing water systems

The invention relates to a novel conditioning agent based on polysuccinimide or the partial hydrolysates thereof which prevents sedimentation in standing or running water systems.

Hydrophobically modified polyamine scale inhibitors

Hydrophobically modified Si-containing polyamines are useful for treating scale in industrial process streams. Preferred hydrophobically modified Si-containing polyamines are particularly useful for treating aluminosilicate scale in difficult-to-treat industrial process streams, such as in the Bayer alumina process streams, nuclear waste streams and kraft paper mill effluent streams.

用于减少冷却设备中的结垢的方法和烯烃制备方法和系统

一种用于减少冷却装置中的结垢的方法，该冷却装置接收包含催化剂颗粒和烯烃的反应产物以及冷却液，该方法包括：向冷却液加入集聚添加剂，以获得包括被集聚的催化剂颗粒和冷却液的第一混合物；将被集聚的催化剂颗粒的至少部分与冷却液分离；及，将分离得到的冷却液的至少部分导回所述冷却装置。一种用于减少冷却装置中的结垢的方法，该冷却装置接收包含催化剂颗粒和烯烃的反应产物以及冷却液，该方法包括向冷却液加入分散剂，以在冷却装置中获得包含被分散的催化剂颗粒和冷却液的第二混合物；及，将冷却液从冷却装置输出。本发明也涉及相应的装置和基于前述方法的烯烃制备方法。

Verfahren zur konditionierung stehender und fliessender wassersysteme

Method for conditioning standing and running water systems

The invention relates to a novel conditioning agent based on polysuccinimide or the partial hydrolysates thereof which prevents sedimentation in standing or running water systems.

Method for conditioning standing and running water systems

Verfahren zur konditionierung stehender und fliessender wassersysteme

Die Erfindung betrifft ein neues Konditionierungsmittel auf Basis von Polysuccinimid oder dessen Teilhydrolysate zur Verhinderung von Ablagerungen in stehenden oder fließenden Wassersystemen.

Procedure for conditioning stagnant and current water systems

Agentes de acondicionamiento para el acondicionamiento de sistemas de aguas estancadas o corrientes, caracterizados por que contienen un contenido efectivo de 0,1 a 10.000 g/m3 del sistema de aguas que va a acondicionarse de polisuccinimida (PSI) o de su hidrolizado parcial en combinacion con coadyuvantes de compuestos de alquilo saturados o insaturados lineales con 5-20 atomos de C del grupo de acidos carboxilicos (acidos grasos), esteres del acido carboxilico, amidas del acido carboxilico. Conditioning agents for conditioning stagnant or running water systems, characterized in that they contain an effective content of 0.1 to 10,000 g / m3 of the water system to be conditioned of polysuccinimide (PSI) or of its partial hydrolyzate in combination with adjuvants of saturated or unsaturated linear alkyl compounds with 5-20 C atoms of the group of carboxylic acids (fatty acids), esters of the carboxylic acid, amides of the carboxylic acid.

PROCEDURE FOR CONDITIONING STANDING AND LIQUID WATER SYSTEMS

The invention relates to a novel conditioning agent based on polysuccinimide or the partial hydrolysates thereof which prevents sedimentation in standing or running water systems.

Processo para o condicionamento de sistemas de água estagnada e corrente

Process for conditioning standing and flowing water systems

The invention relates to a novel conditioning agent based on polysuccinimide, its hydrolysates or its partial hydrolysates, for preventing deposits in standing or flowing water systems.

Conditioning agent for conditioning standing and liquid water systems and methods for preventing deposits in such water systems

Water conditioning composition

A conditioner (especially a tablet or deposited product) for still or flowing water contains (a) a polysuccinimide or partial hydrolysate; and (b) a biostat.

Process for the conditioning of water

Aqueous conditioning agent, comprises polysuccinimide or its partial hydrolysate in combination with fatty acid amides. An independent claim is included for a process for preventing deposits in aqueous system, comprising adding ground water, seep water or effluent water with the aqueous-conditioning agent.

Prevention of incrustations of phosphate-containing double salts

Die vorliegende Erfindung betrifft ein Verfahren zur Verhinderung von Inkrustationen Phosphat-enthaltender Doppelsalze, dadurch gekennzeichnet, dass man Polymere mit wiederkehrenden Succinyleinheiten oder deren Teilhydrolysate und/oder deren Salze auf Inkrustationen Phosphat-enthaltender Doppelsalze in stehenden oder fließenden Gewässern, die Phosphat-Ionen enthalten, einwirken lässt. The present invention relates to a method for preventing incrustations of phosphate-containing double salts, characterized in that polymers with recurring succinyl units or their partial hydrolyzates and / or their salts on incrustations of phosphate-containing double salts in standing or flowing waters which contain phosphate ions. can act.

一种碱性缓蚀剂及其制备方法和应用

本发明公开了一种碱性缓蚀剂，适用于低硬度水密闭循环系统，该缓蚀剂成分以质量%计，包括羟基亚乙基二膦酸钠盐：4~12、聚天冬氨酸衍生物：5~15、亚硝酸钠：15~25、分散剂：3~5和余量的低硬度水复配而成。本缓蚀剂pH为碱性，通过复配协同增效，亚硝酸盐的用量为其单独使用时用量的3%~5%，有效改变单独使用亚硝酸钠时对环境造成的影响，药剂缓蚀效果良好，用量低；适用于低硬度水密闭循环系统，能够有效保障换热器、管道及设备的缓蚀效果，延长使用年限。

Verfahren zur verhinderung von ablagerungen in einem bauwerksentwässerungssystem

Bei der Entwässerung von Bauwerken des Hoch- und Tiefbaus fallen Sicker- und Grundwässer an, die einen hohen Gehalt an gelösten Wasserinhaltsstoffen aufweisen. Diese vorwiegend anorganischen Wasserinhaltsstoffe verursachen in den wasserführenden Teilen der Entwässerungssysteme, wie z.B. Sickerleitungen, oft harte Ablagerungen. Diese Ablagerungen verkleinern den Abflussquerschnitt der Entwässserungssysteme, so dass die Wassermengen nicht mehr frei abfliessen können und dadurch ein Rückstau gebildet wird, der zu grossen Schäden führen kann. Die zur Zeit üblichen Verfahren zum Entfernen dieser Ablagerungen sind: die elektromechanische Reinigung, sowie Hochdruckspülung oder Hochdruckfräsen mit Wasser. Diese Verfahren sind aufwendig, teuer und führen zu Betriebsunterbrüchen. Ziel der Erfindung ist es, die Entstehung solcher Ablagerungen zu verhindern. Dazu wird über eine Dosieranlage an einer oder mehreren Stellen des Entwässerungssystems ein Konditionierungsmittel in wässriger Form zugegeben. Das Konditionierungsmittel vermischt sich auf dem nachfolgenden Fliessweg mit dem anfallenden Wasser und verhindert, dass die gelösten Wasserinhaltsstoffe ausfallen und zu Ablagerungen führen.

Process for the preparation of maleimide polymers and their use

Water treatment/cleaning composition comprising polyaspartic acid or derivatives thereof and phosphonic acid

An improved composition for water treatment and for alkaline cleaning contains polyaspartic acid or a derivative thereof and a phosphonic acid.

Service descaler for aqueous systems

A scale removing formulation designed to remove scale build-up on metallic working surfaces, the scale being conventional and composed of calcium salts and iron oxides from aqueous systems such as boilers, cooling towers, heat exchangers, and the like, while those systems are in service. The present invention utilizes a synergistic blend of a chelant, polymeric conditioners and a gluconate. Principle components of the formulation of the invention include a chelant, polymeric conditioners, a gluconate, a triazole, and sodium sulfite. The gluconate is utilized as an inhibitor for ferrous metal surfaces, with the triazole being utilized as an inhibitor for non-ferrous metal surfaces. The sodium sulfite is employed for removal of dissolved oxygen.

POLYASPARAGINAMID ACID

Stabilization of iron in aqueous systems

The present invention is directed to a process for stabilizing iron hydr(oxide) in aqueous systems which comprises adding to an aqueous system in which the water contains or will contain soluble iron a polymer which contains pendant N-substituted amide functionality, including amide substituted with sulfoalkyl wherein the alkyl is of 1 to 3 carbon atoms, sulfophenyl, or such groups substituted further with (poly)hydroxy.

Polyaspartic acid as a calcium sulfate and a barium sulfate inhibitor

Polyaspartic acid as a calcium sulfate and barium sulfate inhibitor. Generally all forms of polyaspartic acid can be used. β-polyaspartic acids are preferred.

Method of inhibiting sulfate scale in aqueous systems

Biodegradable aspartic acid polymers for preventing scale formation in boilers

A biodegradable anti-scalant for steam generators, boilers and other heat transfer equipment is provided. Anti-scalants prepared in accordance with the present invention include aspartic acid, poly(aspartic acid) and copolymers of aspartic acid and functionalized aspartic acid. Anti-scalants provided in accordance with the present invention are biodegradable and therefore more environmentally friendly than currently available anti-scalant for use with hard water. Methods and use of making anti-scalants are also provided.

Method for conditioning standing and running water systems

The invention relates to a novel conditioning agent based on polysuccinimide or the partial hydrolysates thereof which prevents sedimentation in standing or running water systems.

Method for conditioning standing and running water systems

The invention relates to a novel conditioning agent based on polysuccinimide or the partial hydrolysates thereof which prevents sedimentation in standing or running water systems.

Process for conditioning standing and flowing water systems

The invention relates to a novel conditioning agent based on polysuccinimide, its hydrolysates or its partial hydrolysates, for preventing deposits in standing or flowing water systems.

Fremgangsmåte for kondisjonering av stående og flytende vannsystemer

Method for conditioning standing and floating water systems

Process for preventing deposits in a structure's drainage system

METHOD FOR STIMULATING AN OIL BORE THROUGH USE OF VARIOUS DEPOSIT INHIBITORS

Means for water treatment

Polymers for water treatment

Es werden (Meth)acrylsäurecopolymere, umfassend Methacrylsäureeinheiten und Einheiten auf Basis von Isopropanol beschrieben, wobei das Polymer mit Aminoalkylsulfonsäure funktionalisiert ist. Darüber hinaus wird ein Verfahren zu deren Herstellung und deren Verwendung zur Wasserbehandlung, Scale-Inhibierung bei der Erdölförderung und Korrosionsinhibierung in wässrigen Systemen beschrieben. (Meth) acrylic acid copolymers comprising methacrylic acid units and units based on isopropanol are described, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a method for their preparation and their use for water treatment, scale inhibition in oil production and corrosion inhibition in aqueous systems is described.