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8143204 Mg++ chemistry and method for fouling inhibition in heat processing of liquid foods and industrial processes  
The present invention relates to methods for removing or preventing scale formation in a liquid food processing operation. Aqueous antiscalant solutions comprising soluble magnesium salts are used...
8142714 Cleaning and disinfection of surgical and medical instruments and appliances  
The invention relates to the use of a cleaning agent that contains surfactants and has a pH value of at least 11 when diluted in an aqueous solution and ready for use. Said cleaning agent is used...
8080110 Method and system to stabilize and preserve iron artifacts  
A method, system and device to use a dilute alkaline solution held at sub-critical temperature and pressure conditions to remove rapidly chloride ions from corroded iron artifacts.
8057738 Cooling water scale inhibition method  
Methods for inhibiting corrosion in aqueous evaporative systems where soluble silica (SiO2) is maintained at residuals between 10 Mg/L and saturation, but more preferably maintained at greater than...
7985318 Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators  
A method of monitoring and inhibiting scale precipitation and deposition from spent liquor in pulp mill evaporators and concentrators is disclosed. The method includes connecting a black liquor...
7955553 Cooling water corrosion inhibition method  
A method of providing corrosion inhibition to copper, nickel, aluminum, zinc, tin, lead, beryllium, carbon steel, various alloys of such metals, and galvanized coatings in evaporative cooling water...
7951347 Sour-gas sweetening solutions and methods  
A sour gas sweetening solution comprises an aqueous solution of a silicon-containing compound and an amine-containing compound. The silicon-containing compound is preferably maintained at a...
7517493 Cooling water corrosion inhibition method  
Methods for inhibiting corrosion in aqueous evaporative systems where soluble silica (SiO2) is maintained at residuals between 10 Mg/L and saturation, but more preferably maintained at greater than...
7468158 Corrosion inhibitor for protecting metallic materials in strongly alkaline medium  
Corrosion inhibitor and method of protecting metallic materials in strongly alkaline medium by means of a corrosion inhibitor, characterized in that it contains an amine containing at least one CH...
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...
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.
7122148 Cooling water scale and corrosion inhibition  
A methods of the present invention for inhibiting silica scale formation and corrosion in aqueous systems where soluble silica residuals (SiO2) are maintained in excess of 200 mg/L, and source...
7001873 Decontamination of surfaces contaminated with prion-infected material with oxidizing agent-based formulations  
A surface which carries a material which is infected with prions is cleaned with an alkaline cleaning solution to remove as much proteinaceous material as possible from the surface. The cleaning...
6881244 Method and device for preventing deposits in steam systems  
The present invention relates to a method for preventing the deposition of contaminants in steam systems. In a method of this type, deposits are prevented in a simple and economic manner by...
6695897 Corrosion resistant system for performance drilling fluids utilizing formate brine  
A corrosion inhibited formulation for drilling compositions consisting essentially of an environmentally friendly corrosion inhibitor blended with an alkali metal formate. The corrosion inhibitor...
6645400 Corrosion control utilizing a hydrogen peroxide donor  
The present invention describes an innovative means of inhibiting corrosion of metals which experience active-passive transition in contact with an electrolyte. This invention incorporates hydrogen...
6632294 Corrosion protection of steel in ammonia/water heat pumps  
Corrosion of steel surfaces in a heat pump is inhibited by adding a rare earth metal salt to the heat pump's ammonia/water working fluid. In preferred embodiments, the rare earth metal salt...
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 ...
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...
6464901 Halogen resistant copper corrosion inhibitors  
Non-halogen substituted, nitrogen containing, aromatic compounds are disclosed which are effective copper corrosion inhibitors in aqueous systems being treated with a halogen biocide. The materials...
6365101 Methods of preventing scaling involving inorganic compositions, and compositions therefor  
Method for inhibiting scale deposits in an aqueous system. The method may include at least one of adding and forming anti-scalant in the aqueous system such that an amount of anti-scalant in the...
6355214 Methods of preventing scaling involving inorganic compositions, and inorganic compositions therefor  
Method for inhibiting scale deposits in an aqueous system. The method may include adding anti-scalant to the aqueous system such that an amount of anti-scalant in the aqueous system is up to about...
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 R1, R2...
6203718 Aqueous ammonia corrosion inhibitor  
A corrosion-inhibited working fluid for an aqueous ammonia absorption cycle apparatus is charged with an alkali metal base in the concentration range of 0.0003 to 0.0063 moles per liter of water. A...
6187227 Thiacrown ether compound corrosion inhibitors for alkanolamine units  
The corrosion of metals in contact with aqueous alkanolamine solution in acid gas removal units is inhibited by adding to the alkanolamine solution a corrosion inhibiting amount of a thiacrown...
6143243 Method of inhibiting cavitation-erosion corrosion of aluminum surfaces using carboxylic acid based compositions comprising polymerizable-acid graft polymers  
This invention relates to a method of inhibiting the cavitation-erosion corrosion of aluminum surfaces. The method comprises the step of contacting the aluminum surface with a formulation...
6106770 Method for preventing obstruction in aluminum brass pipes in a water flow path  
A method for preventing obstruction in aluminum brass pipes in a water flow path, including the steps of continuously supplying iron ions or an iron ion supply compound to water in the water flow...
6059996 Low-viscosity coolant brines having improved corrosion protection  
The invention relates to low-viscosity, aqueous coolant brines based on inhibited alkali metal acetates and/or formates having improved corrosion protection, wherein the coolant brines contain 0.2...
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 R1 and R3 independently of one another are saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by...
6042750 Composition for inhibiting corrosion in ferrous metal  
A composition for inhibiting corrosion of metal is described, wherein the composition comprises at least one tetraalkylammonium halide, at least one alkyldiamine, at least one polyethylene...
6027687 Method for preventing corrosion using a sulfite-based oxygen scavenger, and composition therefor  
The invention effectively prevents occurrence of corrosion in water tubes or the like of boilers. The invention provides a method for operating a boiler, including regulating a concentration of...
5993737 Stabilization of water  
The invention provides for the treatment of raw water having a pH of 2.5 to 9, an alkalinity of at most 50 mg/l expressed as calcium carbonate, a calcium content of at most 100 mg/l expressed as...
5958335 Method and apparatus for preventing corrosion of exhaust gas treatment systems  
A corrosion preventive method and an apparatus for preventing corrosion of stainless steel components in an exhaust gas desulfurizing apparatus of an exhaust gas treatment system comprising the...
5888954 Corrosion inhibitors for silver  
A process for inhibiting the corrosion of silver in a dishwashing detergent solution by adding to the solution an inorganic redox-active substance.
5858798 Method and apparatus for detecting amines and ammonia by fluorescence  
Primary amines, ammonia, or mixtures thereof can be detected using a reagent comprising from about 650 ppm to about 25 percent by weight of phthalic dicarboxyaldehyde; from about 74 to about 99.88...
5853490 Use of bicarbonates and carbonates in metal cleaning formulations to inhibit flash rusting  
Prevention of flash rusting of iron-containing substrates is achieved by contacting the substrates with aqueous solutions containing carbonate and/or bicarbonate salts. The treatment process can be...
5830383 Method for inhibition of oxygen corrosion in aqueous systems by the use of a tannin activated oxygen scavenger  
A method of treating an aqueous system is described which comprises incorporating in the system a hydroxylamine derivative of the general formula: ##STR1## wherein each of R1, R2 and R3 which may...
5811026 Corrosion inhibitor for aqueous ammonia absorption system  
A method of inhibiting corrosion and the formation of hydrogen and thus improving absorption in an ammonia/water absorption refrigeration, air conditioning or heat pump system by maintaining the...
5753180 Method for inhibiting microbially influenced corrosion  
A non-biocidal method for inhibiting microbially influenced corrosion of susceptible metal surfaces having an anaerobic biofilm containing active sulfate-reducing bacteria comprising contacting the...
5720902 Methods and compositions for inhibiting low carbon steel corrosion  
Disclosed are methods and compositions for inhibiting the corrosion of low carbon steel in contact with aqueous systems. The composition comprises a silicon compound containing a hydrolyzable...
5714118 Method and composition for inhibiting corrosion  
Corrosion of ferrous metal surfaces in an aqueous system, such as a boiler system, is inhibited by adding a first component and a second component, the first component being preferably...
5708108 Water treatment polymer containing poly oxy- (hydroxymethyl)-1,2-ethanediyl!! macromonomers and methods of use thereof  
A polymer and method of controlling corrosion and the formation and deposition of scale imparting compounds in water systems is disclosed. The polymer has the general structure: ##STR1## wherein E1...
5686016 Oxygen scavenging solutions for reducing corrosion by heat stable amine salts  
The formation of amine or glycol degradation products in solutions used to remove acid gases or water from hydrocarbon or inert streams is reduced by adding to the solution an oxygen scavenger in...
5620653 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Odor control system  
An odor control system and method for removing unwanted odorous airborne constituents in which the gas stream is flowed through a compact, boxlike housing having a plurality of sequentially...
5580462 Controlling calcium carbonate and calcium phosphate scale in an aqueous system using a synergistic combination  
An aqueous system containing scale forming salts including both calcium carbonate and calcium phosphate and characterized by high pH and high calcite concentrations which further contains a...
5512243 Cyclohexanedione oxygen scavengers  
An oxygen scavenger for aqueous mediums is disclosed. The oxygen scavengers comprise cyclohexanediones which, when added to basic aqueous solutions, effectively scavenge oxygen from the aqueous...
5500185 Deoxygenation process  
A method for deoxygenating water is provided comprising the steps of (1) adding an oxygen scavenger such as hydrazine, carbohydrazide, diethylhydroxylamine or morpholine to water containing oxygen,...
5403493 Noncorrosive scale inhibitor additive in geothermal wells  
An aqueous scale inhibitor product is corrosive to the elongated feed lines of a geothermal well due to the length of such feed lines, extended residence time of the product therein, and/or the...
5358642 Polyether polyamino methylene using phosphonates method for high pH scale control  
Polyether polyamino methylene phosphonates possess high calcium tolerance and have been found to give excellent inhibition of the formation, deposition and adherence of scale-forming salts,...
5342578 Corrosion inhibition of ammonia-water absorption chillers  
A method of inhibiting corrosion in ammonia-water absorption machines that includes adding to an ammonia-water solution soluble silicon compounds. Examples of these silicon compounds include sodium...
Matches 1 - 50 out of 158 1 2 3 4 >