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7632458 |
Corrosion inhibitor treatment for closed loop systems
The present invention provides an effective method of inhibiting corrosion on metallic surfaces in contact with a fluid contained in a closed loop industrial fluid system, which comprises adding to...
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7407623 |
Steam condensate corrosion inhibitor compositions and methods
Lecithin and 2-bromo-2-nitropropane-1,3 diol (BNPD) are used to inhibit corrosion in boiler steam condensate systems. Aqueous steam condensate corrosion inhibiting compositions of these components...
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7407590 |
Method for removal of biofilm
The present invention provides a method for the removal of biofilm, flocculent bulked sludge or bulked biologically active sludge from an aqueous system. The method involves adding one or more...
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7208117 |
Automated process for inhibiting corrosion in an inactive boiler containing an aqueous system
This invention relates to an automated process to inhibit corrosion of the metal surface of an inactive boiler containing water.
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7205438 |
Solvent recovery blends from diene production
A diene production stream comprising a solvent recovery blend from diene production comprising one or more fouling agent, one or more extractive distillation solvent, and from about 1 ppm to about...
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7179384 |
Control of cooling water system using rate of consumption of fluorescent polymer
A method to control a cooling water system based on the rate of consumption of fluorescent polymer is described and claimed. The method includes providing a cooling water system and a water...
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7112284 |
Oxygen scavenger and the method for oxygen reduction treatment
Oxygen scavenger which can exhibit excellent oxygen reduction effect in a wide variety of conditions is provided as an alternative volatile oxygen scavenger to hydrazine. The oxygen scavenger...
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6982062 |
Corrosion inhibiting composition
This invention relates to a corrosion inhibiting composition comprising (a) an aliphatic amine, (b) an azole selected from the group consisting of (1) tolyltriazole, (2) benzotriazole, and (3)...
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6797177 |
Process for inhibiting scale and fouling on the metal surfaces exposed to an aqeuous system
This invention relates to a process for inhibiting scale and fouling on metal surfaces exposed to an aqueous system, particularly a circulating aqueous system. The process comprises adding glutamic...
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6645428 |
Fluorescent monomers and tagged treatment polymers containing same for use in industrial water systems
Fluorescent monomers are described and claimed which are synthesized by reacting a substituted or non-substituted naphthalic anhydride with an amine and with a moiety containing a polymerizable...
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6585933 |
Method and composition for inhibiting corrosion in aqueous systems
A method and composition for controlling corrosion of metals, particularly ferrous-based metals in contact with aqueous systems is disclosed, which includes treating industrial waters with a...
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6572788 |
Amine oxide wood preservatives
The present inventors have discovered that amine oxides are highly effective as wood preservatives. The present invention provides a wood preservative composition comprising a biocidally effective...
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6551553 |
Disinfection method
A process is provided for disinfecting articles at temperatures below 5° C. with an aqueous alcoholic salt solution. The process provides a fast reduction of microorganisms at low temperatures...
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6548016 |
Oil soluble hydrogen permeation inhibitor
The present invention provides a composition and method for inhibiting hydrogen permeation in metal refinery equipment comprising incorporating into a product stream handled by said equipment a...
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6503448 |
Process for retarding the formation of corrosion on metal surfaces
The invention relates to a process for retarding the formation of corrosion and/or removing existing corrosion deposits on a metal surface where the metal is in contact with air. The process...
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6475431 |
Corrosion inhibitors with low environmental toxicity
A low toxic, biodegradable, water soluble and dispersant series of corrosion inhibitors are described. The method of inhibiting corrosion in aqueous medium by incorporating the inhibitor in PPM is...
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6468470 |
Galvanized metal corrosion inhibitor
A white rust inhibiting composition and method of inhibiting white rust for evaporative water coolers are disclosed. The composition includes, in combination, a blend of one or more...
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6461518 |
Method for inhibiting the formation and deposition of silica scale in water systems
This invention relates to a method for inhibiting the formation and deposition of silica scale in water systems. The method includes treating the water in such water systems with an effective...
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6458320 |
Galvanized metal corrosion inhibitor
This invention relates to a galvanized metal, typically steel, corrosion inhibitor concentrate comprising (a) an amine salt of a fatty acid or an amine salt of a derivative of a fatty acid, (b)...
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6419850 |
System and composition for decontaminating fluids
An apparatus and composition of matter for treating tap or distilled water prior to use in irrigation during surgical and medical operations.
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6395225 |
Sulphydryl acid and imidazoline salts as inhibitors of carbon corrosion of iron and ferrous metals
The invention concerns inhibitor compositions based on fatty sulphydryl acid and poly(ethyleneamino)imidazoline salts for considerably reducing the corrosive effect of carbon brine on iron and...
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6395189 |
Method for the control of biofilms
A process is provided for both removing and controlling biofilms present in industrial cooling and process waters. The process provides a composition which includes the reaction products of an...
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6383414 |
Use of corrosion inhibiting compounds to inhibit corrosion of metal plugs in chemical-mechanical polishing
A process of inhibiting a corrosion of metal plugs formed in integrated circuits is described. The corrosion inhibiting process includes providing a partially fabricated integrated circuit surface...
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6358746 |
Fluorescent compounds for use in industrial water systems
Fluorescent compounds of the formula: wherein R 1 and R 2 are either both SO 3 M, or one of R 1 and R 2 is SO 3 M and the other is COOM, where M is selected from the group consisting of H,...
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6338819 |
Combinations of imidazolines and wetting agents as environmentally acceptable corrosion inhibitors
A method and corrosion inhibitor for inhibiting corrosion of metal equipment in an aqueous medium comprising components selected from the group consisting of Skeletonema costatum, fish, other...
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6337047 |
Process for dispersing iron oxide in steam generating boilers
This invention relates to a process for dispersing corrosion products, specifically iron oxide, in steam generating boilers. Improved dispersion is achieved by adding a dispersant to a feedpoint of...
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6299836 |
Gas treating solution corrosion inhibitor
Corrosion in aqueous alkanolamine, physical solvents, or combination of alkanolamine and physical solvent solutions used to remove acid gases from natural gas, synthetic gas, or light hydrocarbon...
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6261346 |
Method for protecting metal surfaces against corrosion in liquid or gaseous media
A process useful for protecting metal surfaces against corrosion in is presented involving: (a) forming a corrosion inhibitor having a compound corresponding to formula (I): ##STR1## where R 1 ,...
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6238621 |
Corrosion inhibiting compositions
There are disclosed corrosion inhibiting compositions comprising (a) at least one amido acid or salt thereof and (b) at least one of an aryltriazole or 3-amino-1,2,4-triazole wherein the molar...
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6200499 |
Compositions for corrosion inhibition of ferrous metals
Compositions comprising certain amino acids such as aspartic acid, when fully ionized at alkaline pH, function effectively as corrosion inhibitors for ferrous metals in the presence of an aqueous...
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6187262 |
Inhibition of corrosion in aqueous systems
A method for controlling corrosion of metals, particularly ferrous-based metals in contact with aqueous systems is disclosed, which includes treating industrial waters with a tetrazolium salt of...
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6180057 |
Corrosion inhibiting compositions and methods
Corrosion inhibiting compositions and methods for inhibiting the corrosion of metal surfaces by corrosive aqueous fluids are provided. In accordance with the invention, a corrosion inhibiting...
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6162391 |
Scale inhibition agent and method for using same
An agent for preventing scale formation and a method for preventing scale formation include a polymer which has at least 50% of N-vinyl formamide units or N-vinyl acetamide units and a phosphorus...
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6153106 |
Method for inhibiting the formation and deposition of silica scale in water systems
The present invention relates to a method for inhibiting the formation and deposition of silica scale in water systems. The method includes treating the water in such water systems with an...
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6149822 |
Bio-film control
A process is provided for both removing and controlling biofilms present in industrial cooling and process waters. The process provides a composition which includes the reaction products of an...
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6071436 |
Corrosion inhibitors for cement compositions
Compositions and methods relating to cementitious compositions are provided. The addition of an amidoamine that is the reaction product of polyalkylenepolyamines and short-chain alkanedioic acids...
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6063334 |
Sulfur based corrosion inhibitor
The present disclosure is concerned with inhibiting corrosion in metal, usually steel, equipment which is exposed to oil field production flow including gases, oil, water, and sand. It is injected...
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6045719 |
Use of quaternized imidazoles as corrosion inhibitors for non-ferrous metals, and coolant compositions and antifreeze concentrates comprising them
Quaternized imidazoles I ##STR1## in which R 1 and R 3 independently of one another are saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by...
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6022401 |
Biodegradable modified polyaspartic polymers for corrosion and scale control
Several copolymers of aspartic acid and another monomer provide effective mild steel corrosion inhibitors and scale formation inhibitors under oil field conditions. The copolymers are polymers of...
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6001264 |
Water-treating agent and method for treating water
A water-treating agent comprising a ternary copolymer of conjugated dienesulfonic acid/(meth)acrylic acid/2-hydroxyethyl (meth)acrylate, or a ternary copolymer of conjugated dienesulfonic...
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5989440 |
Method of using oxygen scavenger and removing oxygen from water
An oxygen scavenger characterized in that the effective component thereof consists of a heterocyclic compound with N--N bond in a ring thereof An oxygen scavenger characterized in that the...
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5979479 |
Use of alkoxylated alkanolamide together with alkoxylated alcohol as a friction-reducing agent
Use of a mixture of at least one alkanolamide of general formula (I), wherein R is a hydrocarbon group having 7-23 carbon atoms, preferably 11-23 carbons atoms, A is an alkyleneoxy group having 2-4...
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5968408 |
Methods of inhibiting corrosion using isomers of chloro-methylbenzotriazole
The use of halo-benzotriazoles as corrosion inhibitors in aqueous systems is disclosed. Specific isomers of chloro-methylbenzotriazole were found to be more effective corrosion inhibitors than...
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RE36291 |
Reaction product of nitrogen bases and phosphate esters as corrosion inhibitors
A method for inhibiting corrosion of metal surfaces in an aqueous medium, comprising incorporating into the medium a corrosion inhibitor in an amount sufficient to inhibit corrosion, the corrosion...
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5904857 |
4-alkyl and aryl semicarbazides as oxygen scavengers
A method for removing dissolved oxygen from alkaline water containing dissolved oxygen at a temperature greater than 250° F. which comprises the step of: adding to said alkaline water containing...
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5891364 |
Corrosion inhibitors for cement compositions
Compositions and methods relating to cementitious compositions are provided. The addition of an amidoamine that is the reaction product of polyalkylenepolyamines and short-chain alkanedioic acids...
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5874026 |
Method of forming corrosion inhibiting films with hydrogenated benzotriazole derivatives
A method of use of a composition including either or both isomers of hydrogenated methylbenzotriazole, namely, 5-Methyl-1H-Benzotriazole or 4-Methyl-1H-Benzotriazole which have been at least about...
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5871691 |
Inhibition of corrosion in aqueous systems
A method and compounds for inhibiting and controlling corrosion is disclosed. The method is particularly effective at inhibiting or preventing corrosion of ferrous-based metals in contact with...
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5866013 |
Method for inhibiting scale and controlling corrosion in cooling water systems
A method and composition for simultaneously controlling the deposition of scale and the formation of corrosion in a cooling water system comprising adding to the system a combination of (a) a water...
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5863464 |
Methods of inhibiting corrosion using halo-benzotriazoles
The use of halo-benzotriazoles as corrosion inhibitors in aqueous systems is disclosed. Halo-benzotriazoles such as chloro-tolyltriazole and bromo-tolyltriazole were found to be more effective...
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