| Patent Number |
Title Of Patent |
Date Issued |
| RE33468 |
Process and apparatus for testing fluids for fouling and antifoulant protocol |
December 4, 1990 |
| There is disclosed a novel mobile apparatus and process therefor including a heat transfer test assembly and related conduit and valve assemblies for connection in fluid flow communication to a heat transfer apparatus for in-situ testing and generation of foulant data to permit substanti |
| RE33346 |
Process and apparatus for testing fluids for fouling |
September 25, 1990 |
| There is disclosed a novel mobile apparatus and process therefor including a heat transfer test assembly and related conduit and valve assemblies for connection in fluid flow communication to a heat transfer apparatus for in-situ testing of the fluid passing therethrough and including mo |
| 5590716 |
Method of inhibiting downhole corrosion of metal surfaces |
January 7, 1997 |
| A method of inhibiting corrosion on metal surfaces and downhole equipment and above surface separation equipment from a mixture of brine and crude oil extracted from underground formations. The method comprises the injection on a periodic basis of an effective amount of an oxime compound |
| 5403496 |
Process for stabilizing metals in ash |
April 4, 1995 |
| A process for stabilizing metals in ash to prevent leaching of the metals is disclosed. The pH of an aqueous slurry of ash is reduced to less than 5 in the presence of an iron salt. The pH-reduced slurry is then treated with an organo sulfur containing compound and an alkaline earth meta |
| 5401326 |
Microemulsion cleansers and their uses |
March 28, 1995 |
| This invention relates to microemulsion cleaners comprising (a) an organic solvent (b) a surfactant blend comprising an anionic and nonionic surfactant (c) a glycol ether (d) morpholine, and (e) water. These cleaners can be used for removing baked-on oil and carbon deposits. |
| 5401325 |
Process for removing carbon deposits using microemulsion cleaners |
March 28, 1995 |
| This invention relates to a process for removing oil, grease, and baked-on carbon deposits from metal surfaces with microemulsion cleaners comprising (a) an organic solvent (b) a surfactant blend comprising an anionic and nonionic surfactant (c) a glycol ether (d) morpholine, and (e) wat |
| 5382520 |
Automated method for controlling the rate of chlorine dioxide generation |
January 17, 1995 |
| An automated process for controlling the rate chlorine dioxide made from sodium chlorate-chloride and sulfuric acid is generated. The process automatically adjusts the rate of chlorine dioxide production to the needs of the system treated with chlorine dioxide by controlling the feed of |
| 5073354 |
Process of stripping gold and silver from carbon |
December 17, 1991 |
| Gold and silver are stripped from activated carbon on which they are adsorbed as cyanide complexes by subjecting the activated carbon to a stripping solution comprising as the strippant an effective amount of a compound containing the carboxylate functionality. The compound is prefer |
| 5068059 |
Corrosion inhibitor |
November 26, 1991 |
| A corrosion inhibitor for aqueous systems containing ferrous and non-ferrous metallic surfaces comprising (a) hydroxyphosphonoacetic acid, or a water soluble salt thereof, and (b) an aminoalkylenephosphonic acid derivative, or a water soluble salt thereof. |
| 4970026 |
Corrosion inhibitor |
November 13, 1990 |
| A corrosion inhibitor for ferrous and non-ferrous aqueous systems comprising any of (1) a naphthenic oil based sodium salt of a triethanolamine alkylsulfamido carboxylic acid, (2) a paraffinic oil based sodium salt of a triethanolamine alkylsulfamido carboxylic acid, (3) a sodium sal |
| 4961878 |
Corrosion inhibitor for a closed aqueous cooling system |
October 9, 1990 |
| A composition for inhibiting metal corrosion in a closed aqueous cooling system comprising an aqueous mixture of (a) a nitrate, (b) a silicate, (c) an acrylate polymer, (d) an amine oxide and (e) tolyltriazole. A preferred embodiment also includes a molybdate. |
| 4929274 |
Recovery of metal values from ores |
May 29, 1990 |
| Heap leaching of gold/silver ores with an aqueous alkali cyanide solution containing a surfactant hydrolyzable at the pH of the solution, the surfactant being present in an amount sufficient to increase the rate of metal value recovery without adversely affecting the carbon efficiency in |
| 4915872 |
Cast solid block corrosion inhibitor composition |
April 10, 1990 |
| A solid cast block of corrosion inhibitor composition, comprising: (i) about 5 to 20 wt-% silicate, calculated as sodium metasilicate pentahydrate; (ii) about 5 to 90 wt-% borate, calculated as sodium tetraborate pentahydrate; (iii) about 0.5 to 5 wt-% polymeric dispersant such as po |
| 4894119 |
Retention and/or drainage and/or dewatering aid |
January 16, 1990 |
| A combination of a cationic polymer and a nonionic polymer are employed as a drainage and/or dewatering and/or retention aid. The combination has particular applicability to improving retention and/or drainage in the papermaking industry by addition of the combination to the pulp stock. |
| 4806310 |
Corrosion inhibitor |
February 21, 1989 |
| A corrosion inhibitor for ferrous and non-ferrous aqueous systems comprising (a) a water soluble phosphonic acid or salt thereof, preferably an amino methylene phosphonic acid; (b) a phosphonocarboxylic acid, preferably a phosphonoalkane carboxylic acid; (c) an azole, preferably benz |
| 4749412 |
Method and composition for the inhibition of corrosion |
June 7, 1988 |
| A method and composition for inhibiting corrosion is disclosed. The method involves forming a coating of from about 1-10 mils thick on a surface, with a composition comprising an over-based alkaline organic sulfonate salt, a drying oil, a copper or rare earth metal drier, a zinc metal |
| 4725613 |
Synergistic microbiocidal composition containing a mixture of a N-alkyldimethylbenzyl ammonium h |
February 16, 1988 |
| A synergistic microbiocide comprising a member selected from the group consisting of (1) an N-alkyl (C.sub.8 -C.sub.30) dimethylbenzylammonium halide and (2) a polycondensation product of acrolein/formaldehyde in a molar ratio of 1:10-10:1 in combination with (3) a bicyclic polyoxyme |
| 4725612 |
Synergistic microbiocidal compositions containing a mixture of a bicyclic polyoxymethylene oxazo |
February 16, 1988 |
| A synergistic microbiocidal composition for inhibiting bacterial growth comprising Component (1) having the formula: ##STR1## in which R represents hydrogen or a halogen atom, and alkali ammonium and amine salts thereof; and Component (2) having the formula: ##STR2## in which |
| 4725611 |
Synergistic microbiocidal compositions containing a mixture of a bicyclicpolyoxymethyleneoxazoli |
February 16, 1988 |
| A synergistic microbiocidal composition comprising as Component (1) a 4-isothiazolin-3-one and as Component (2) a bicyclic polyoxymethyleneoxazolidine of the formula: ##STR1## in which each R represents hydrogen, an alkyl of 1-6 carbons, phenyl, halophenyl or --(CH.sub.2 O).sub.m |
| 4724143 |
Synergistic microbiocidal composition containing a mixture of a bicyclic polyoxymethyleneoxazoli |
February 9, 1988 |
| A synergistic microbiocide comprising a member selected from the group consisting of (1) an N-alkyl (C.sub.8 -C.sub.30) dimethylbenzylammonium halide and (2) a polycondensation product of acrolein/formaldehyde in a molar ratio of 1:10-10:1 in combination with (3) a bicyclic polyoxyme |
| 4724142 |
Synergistic microbiocidal compositions containing a mixture of a N-alkyl dimethylbenzylammonium |
February 9, 1988 |
| A synergistic microbiocidal composition for inhibiting bacterial growth comprising as Component (1) a polycondensation product of acrolein/formaldehyde in a molar ratio of 1:1-10:1 and as Component (2) an N-alkyl(C.sub.8 -C.sub.30) dimethylbenzyl ammonium halide, Component (1) and Co |
| 4686854 |
Process and apparatus for measuring corrosion rate of a heat transfer surface |
August 18, 1987 |
| There is disclosed a novel fouling and corrosion test assembly including a metallic tube having a heating element embedded in a heat conductive material for controlled heat input and with a thermocouple to measure wall temperature of the tube, and a metallic sleeve disposed about a p |
| 4670236 |
Control of scale in flue gas scrubbers |
June 2, 1987 |
| A method for minimizing calcium scale deposits in wet slurry flue gas desulfurization systems by introducing into the slurry a 50:50 diisobutylene-maleic anhydride copolymer of an average molecular weight of 11000. |
| 4664884 |
Corrosion inhibitor |
May 12, 1987 |
| A corrosion inhibitor for ferrous and non-ferrous aqueous systems comprising (a) a water soluble phosphonic acid or salt thereof, preferably an amino methylene phosphonic acid; (b) a phosphonocarboxylic acid, preferably a phosphonoalkane carboxylic acid; and (c) a triazole, preferabl |
| 4647314 |
Rinse water additive |
March 3, 1987 |
| Can containing food are rinsed with an aqueous solution of quaternary ammonium salt and oxyalkylene polymer (homopolymer of oxyethylene or copolymer of oxyethylene and oxypropylene). |
| 4626377 |
Defoaming composition |
December 2, 1986 |
| A synergistic, aqueous, free flowing defoaming composition comprising as the primary component an aqueous hydrophobic dispersion of an alcohol of 14-28 carbon atoms, a fatty acid of 14-28 carbon atoms, a soap of a fatty acid of 14-28 carbon atoms and a nonionic or anionic surfactant, and |
| 4487745 |
Oximes as oxygen scavengers |
December 11, 1984 |
| The removal of dissolved oxygen from aqueous systems, such as steam generating systems, thereby inhibiting the corrosion of metal surfaces by adding to the system a composition in which the effective component is an oxime of the formula: ##STR1## in which R.sub.1 and R.sub.2 are |
| 4477370 |
Defoaming composition |
October 16, 1984 |
| A synergistic, aqueous, free flowing defoaming composition comprising as the primary component an aqueous hydrophobic dispersion of an alcohol of 14-28 carbon atoms, a fatty acid of 14-28 carbon atoms, a soap of a fatty acid of 14-28 carbon atoms and a nonionic or anionic surfactant, and |
| 4401574 |
Flocculation of aqueous paint waste |
August 30, 1983 |
| Paint waste water containing dispersed paint solids is clarified by flocculating the solids with a basic poly aluminum chloride having the following structural formula:wherein n and m are integers and 3n is larger than m, and the basicity is from 30% to 83%. |
| 4386008 |
Corrosion protection package |
May 31, 1983 |
| A water disintegratable package which includes a solid water soluble salt of hydrazine whereby the package can be added to water to effect disintegration of the package to release the hydrazine salt for solubilization in the water to thereby provide for corrosion protection in aqueou |
| 4377493 |
Defoamer composition and use thereof |
March 22, 1983 |
| A defoamer comprised of silica having hydrophobic surfaces dispersed in a water insoluble hydrophobic organic liquid, wherein the silica has a surface area of no greater than 0.1 m.sup.2 /g and the hydrophobic silica comprises in excess of 25 wt. percent of the composition. |
| 4346587 |
Process and apparatus for testing fluids for fouling and antifoulant protocol |
August 31, 1982 |
| There is disclosed a novel mobile apparatus and process therefor including a heat transfer test assembly and related conduit and valve assemblies for connection in fluid flow communication to a heat transfer apparatus for in-situ testing and generation of foulant data to permit substanti |
| 4340500 |
Liquid defoamer and process of use thereof |
July 20, 1982 |
| A free flowing aqueous defoamer comprised of alcohol, a fatty acid, a soap of a fatty acid and an anionic and/or non-ionic surfactant which prevents formation of a gelled mass of the solids and provides a free flowing dispersion of the solids in the water, with the solids contents being |
| 4339945 |
Process and apparatus for testing fluids for fouling |
July 20, 1982 |
| There is disclosed a novel mobile apparatus and process therefor including a heat transfer test assembly and related conduit and valve assemblies for connection in fluid flow communication to a heat transfer apparatus for in-situ testing of the fluid passing therethrough and including mo |
| 4317744 |
Corrosion inhibitor |
March 2, 1982 |
| Corrosion inhibitor comprised of corrosion inhibiting amounts of a water soluble phosphonic acid or salt thereof; polymer of acrylic, methacrylic, maleic acid or its anhydride; and tolyltriazole. The corrosion inhibitor is particularly employed for inhibiting corrosion of ferrous contain |
| 4303549 |
Liquid defoamer and defoaming process |
December 1, 1981 |
| A free flowing aqueous defoamer comprised of a solid alcohol, a solid fatty acid, a soap of a solid fatty acid and an anionic and/or non-ionic surfactant which prevents formation of a gelled mass of the solids and provides a free flowing dispersion of the solids in the water, with the |
| 4287072 |
Water treatment by ion exchange resin |
September 1, 1981 |
| In the treatment of water by the use of a cationic and/or anionic exchange resin, catalyzed hydrazine compound is added to the feed water to alleviate the iron fouling of the ion exchange resin. |
| 4105581 |
Corrosion inhibitor |
August 8, 1978 |
| Corrosion inhibitor comprised of a phosphate and phosphonate, which further includes a homopolymer of maleic acid or maleic anhydride. The inhibitor is capable of effectively functioning in aqueous systems operating at an alkaline pH, and in particular a pH of above 8.5 or higher. |
| 4104033 |
Foam prevention in sodium carbonate crystallization |
August 1, 1978 |
| In crystallization of a carbonate of sodium from aqueous solutions, a water soluble homopolymer of oxyethylene or block copolymer of oxyethylene and oxypropylene is employed as a defoamer. The presence of the defoamer in the resulting sodium carbonate does not adversely interfere with ca |
| 4096061 |
Recovery and reuse of paint solids from waste water |
June 20, 1978 |
| A latex base paint waste water containing dispersed paint solids is clarified by flocculating the paint solids with a cationic flocculant. The separated paint sludge is brought to an alkaline pH and treated with an anionic dispersing agent whereby the sludge can be used in the formulatio |
| 4010110 |
Process for dispersing contaminants in circulating water or polar organic liquid system |
March 1, 1977 |
| A dispersant composition comprising (1) a polysiloxane-polyoxyalkylene copolymer; and (2) an oxyalkylene polymer, in which the oxyalkylene of (1) and (2) is oxyethylene and/or oxypropylene. The composition disperses contaminants in aqueous systems without foaming, and also cleanses foule |
| 3992318 |
Corrosion inhibitor |
November 16, 1976 |
| A corrosion inhibitor which is comprised of a polyphosphate; a phosphonic acid or salt thereof; and a polymer of acrylic or methacrylic acid. The corrosion inhibitor is employed in aqueous systems and is capable of operating at a wide variety of conditions, including high temperature, |
| 3962119 |
Non-foaming dispersing composition |
June 8, 1976 |
| A dispersant composition comprising (1) a polysiloxane-polyoxyalkylene copolymer; and (2) an oxyalkylene polymer, in which the oxyalkylene of (1) and (2) is oxyethylene and/or oxypropylene. The composition disperses contaminants in aqueous systems without foaming, and also cleanses foule |
| 3959176 |
Non-foaming dispersing composition |
May 25, 1976 |
| A solid non-foaming dispersing composition of (1) hydrophobic silica; (2) block copolymer of polyoxyethylene and polyoxypropylene wherein the chain is terminated, at both ends, by polyoxypropylene; and (3) an organic spreading liquid. A surfactant may also be employed. A tablet form of t |
