Abstract: 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 having the formula: ##STR1## in which R.sub.1 and R.sub.2 are the same or different and are selected from hydrogen, lower alkyl groups of one to eight carbons or aryl groups. In addition to functioning as a corrosion inhibitor for the metal surfaces in contact with the mixture, the oxime compound is less susceptible to neutralization by contact with acidic species, and is less likely to emulsify the brine and crude oil mixture brought to the surface.

Abstract: 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 metal oxide or hydroxide in specific weight proportions relative to the iron salt and to each other.

Abstract: 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) water.

Abstract: 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.

Abstract: 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 one or more of the reactants by means of a multiple feed-back loop system which provides adequate oxidative treatment while avoiding overfeed or underfeed conditions.

Abstract: 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 preferably selected from benzoic and substituted benzoic acids, and polyacrylic acids of less than about 100,000 m.w.

Abstract: 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.

Abstract: 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 salt of an alkylsulfamido carboxylic acid, and (4) a synergistic mixture of any two of (1), (2) and (3).

Abstract: 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.

Abstract: 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 the subsequent step of separating the metal cyanide value from the pregnant leach solution by absorption on carbon columns.

Abstract: 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 polyacrylamide; and (iv) a sufficient solidifying amount of water.

Abstract: 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.

Abstract: 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 benzotriazole or tolyltriazole; and (d) a water soluble molybdate salt, preferably sodium molybdate.

Abstract: 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 drier, an organic solvent, and petrolatum, and curing the coating. Optionally, the composition may include polyisobutylene. The method and composition are particularly useful for metal surfaces in a seawater environment.

Abstract: 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 each R represents hydrogen, an alkyl of 1-6 carbons, phenyl, halophenyl or --(CH.sub.2 O).sub.m CH.sub.2 OH in which m is 0-2 and n is 0-4; Component 1/Component 2 being in a weight ratio of at least 1:1.

Abstract: 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 CH.sub.2 OH in which m is 0-2 and n is 0-4; Component 1/Component 2 being in a weight ratio of at least 1:1.

Abstract: 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 polyoxymethylene-oxaazolidine having the formula: ##STR1## in which each R represents hydrogen, an alkyl of 1-6 carbons, phenyl, halophenyl or --(CH.sub.2 O).sub.m CH.sub.2 OH in which m is 0-2 and n is 0-4, the ratio of (1) or (2) to (3) being 1:10-10:1 by weight.

Abstract: 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 Component (2) being in a weight ratio of about 1:10-10:1.

Abstract: 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 monitoring and recording apparatus. The heat transfer test assembly includes a heating member for controlled heat input and thermocouples to measure the surface temperature of heating member to permit fouling determinations at varying flow rates with simultaneous monitoring and recording thereof together with data, such as corrosion, pH, conductivity, and the like.

Abstract: 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 substantially simultaneous implementation of the antifoulant protocol of the fluid passing therethrough and including monitoring and recording apparatus together with a source of antifoulants for controlled introduction into the fluid. The heat transfer test assembly includes a heating member for controlled heat input and thermocouples to measure the wall temperature of the heating member to permit fouling determinations at varying flow rates with simultaneous monitoring and recording thereof together with data, such as corrosion, pH, conductivity, and the like.