Abstract: A method of inhibiting the precipitation and deposition of calcium oxalate scale in an aqueous system is disclosed, in which an effective amount of a combination of a high molecular weight lignosulfonate compound and a phosphate compound is added to the system.

Abstract: Methods for controlling foam in hydrocarbon liquids within hydrocracking unit separator systems utilizing alkylphenolformaldehyde resin alkoxylates with a propylene oxide/ethylene oxide block copolymer having a molecular weight of from about 2000 to 6000 and having from about 20% to about 80% ethoxylation or an alkylarylsulfonic acid or alkylarylsulfonic acid amine salt to said hydrocarbon liquid.

Abstract: Methods for inhibiting the deposition of organic contaminants from pulp in pulp and papermaking systems are disclosed. Albumins, globulins or blends thereof and spray-dried animal blood cells are added to the pulp or sprayed onto deposition prone surfaces of a papermaking system suffering from organic contaminants.

Abstract: A controlled-release supplement coolant additive for use in diesel engine coolant systems comprising a core containing at least one supplemental coolant additive (SCA) active component and a polymeric coating material encapsulating said core. The controlled released supplement coolant additive slowly releases the SCA active components to a diesel engine coolant system, thereby delivering an effective concentration level of SCA active components over an extended period. The controlled-release supplement coolant additive maintains a minimum concentration level of active SCA components in the coolant system. Additionally, the controlled-release supplemental coolant additive prevents overdosing the coolant system with particular SCA active components such as nitrates.

Abstract: Copolymers of low molecular weight polysaccharides and cationic monomers, their method of production and method of using as water treatment agents are disclosed. Preferably the copolymer comprises alginic acid and methyl chloride quaternary salt of dimethylaminoethyl acrylate.

Abstract: A method for inhibiting the microbial adhesion on surfaces in contact with an aqueous system is disclosed, which comprises adding to the system a treatment comprising an alkylsulfosuccinate surfactant.

Abstract: A treatment for enhancing the activity of biocidal compounds to control the growth of microbes in an aqueous system is disclosed, which comprises adding to said compounds an effective amount of an alkylsulfosuccinate surfactant.

Abstract: Oil-in-water (reverse) and water-in-oil (obverse) emulsions in crude oil production and processing systems are resolved by addition of a treatment solution comprising a copolymer of acryloxyethyltrimethyl ammonium chloride (AETAC) and acrylamide. The mole percent of AETAC is above about 20% and the molecular weight (grams per mole) of the copolymer is above about 2 million. The treatment solution is effective in matrix which include high percentages of oil and at high temperatures.

Abstract: Methods are provided for cleaning and inhibiting the formation of fouling deposits on jet engine components during the combustion of turbine combustion fuel oils. Methods are also provided for inhibiting the formation and emission of soot and smoke from jet engine exhaust during turbine combustion fuel oil combustion. The methods employ a derivative of polyalkenylthiophosphonic acid added to the turbine combustion fuel oil. The preferred derivative is pentaerythritol ester of polyisobutenylthiophosphonic acid.

Abstract: Compositions and methods for inhibiting the deposition of organic contaminants from pulp in pulp and papermaking systems are disclosed. The methods add to the pulp or to the deposition prone surface of the papermaking system a composition comprising a polyvinyl alcohol having 50 to 100% hydrolysis, a high molecular weight gelatin having a molecular weight of about 100,000 or higher, and a cationic polymer.

Abstract: A method of flocculating coagulated and/or finely divided suspended matter in aqueous systems comprising adding to the system from 0.005 to 1 weight percent based on the dry weight of the coagulated and/or finely suspended matter of at least one water soluble cationic polymer selected from a water soluble cationic copolymer (I) composed of the polymerization reaction of an N-vinylamide with at least one cationic quaternary amine monomer.

Abstract: 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 group, a complex fluoro acid, and a cross-linking agent.

Abstract: The present invention provides a method for dewatering sludge that utilizes the step-wise and sequential addition to the sludge of a cationic polyamine and a cationic polyacrylamide.

Abstract: A method and composition for detackifying or coagulating and flocculating waterborne and mixed waterborne/solventborne paints in paint spray booth water. Aluminum chlorohydrate and a tannin containing polymer, preferably in an aqueous solution, are added to the paint spray booth water to detackify or coagulate and flocculate the paints.

Abstract: A process for preparing a water-soluble polymer dispersion is herein provided which is characterized by polymerizing from about 10 to 50 mole percent of a monomer having a formula (II); from about 1 to 50 mole percent of N-alkylacrylamide, N, N-dialkylacrylamide or mixtures thereof; having a formula (III) from about 1 to 70 mole percent acrylamide; and optionally up to about 4 mole percent of a monomer having a formula (I) having a benzyl functionality. The polymerization is carried out in the presence of an aqueous solution of a polyvalent anionic salt which contains (1) a water soluble cationic polymer which is insoluble in the aqueous salt solution and (2) a water soluble cationic polymer which is soluble in the aqueous salt solution.

Abstract: 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 E.sup.1 comprises the repeat unit obtained after polymerization an .alpha.,.beta. ethylenically unsaturated carboxylic acid monomers, lower alkyl (C.sub.1 -C.sub.6) ester or a hydroxylated lower alkyl (C.sub.1 -C.sub.6) ester of such carboxylic acid, or amide forms thereof; E.sup.2 comprises the repeat unit obtained after polymerization of an .alpha.,.beta. ethylenically unsaturated monomer containing a sulfonic acid functionality; R.sup.1 is a hydrogen or a lower (C.sub.1 -C.sub.3) alkyl; R.sup.2 is --CH.sub.2 --O-- or --C(.dbd.O)--O--; R.sup.3 is --?--CH.sub.2 --CH(--CH.sub.2 --OH)--O--!--.sub.n ; n is an integer greater than 1; and R.sup.

Abstract: A method of treating water to inhibit the formation of fluoride salt scale is disclosed. The method is particularly effective at inhibiting the formation and deposition of fluoride containing salts in spray water cooling systems such as steel casting systems. The method comprises introducing into the aqueous system a polyepoxysuccinic acid of the general formula: ##STR1## where n ranges from about 2 to about 11, M is hydrogen or a water soluble cation such as Na.sup.+, NH.sub.4.sup.+ or K.sup.+ and R is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 substituted alkyl.

Abstract: Compositions and methods for passivating galvanized metal surfaces are disclosed. The addition of a paraffin wax, preferably emulsified with nonionic surfactants to commercial passivation treatment (non-chrome) enhances passivation.

Abstract: A water-soluble cationic copolymer comprising a reaction product of N-vinylamide having the general formula: ##STR1## and a cationic quaternary amine having the formula: ##STR2## wherein Y is C(.dbd.O)O(CH.sub.2).sub.n N.sup..sym. R.sup.4 R.sup.5 R.sup.6 X.sup..crclbar., or ##STR3## X.sup..crclbar.,n is 1 to 5; R.sup.1, R.sup.2, R.sup.3 are independently H or C.sub.1 to C.sub.3 alkyl, R.sup.4, R.sup.5, and R.sup.6 are independently C.sub.1 to C.sub.3 alkyl, X is a halide, hydroxyl or alkylsulfate anion.The copolymers of this invention are useful as flocculating agents, and are particularly useful as drainage/retention aids in pulp and papermaking operations.

Abstract: In a treatment system for feeding a liquid from a tank having an outlet by a controllable pump operated cyclically, an automatic calibration/measuring system. The system is arranged for determining the volume of liquid pumped each cycle of the pump, a fluid flow measuring device and a controller coupled thereto. The fluid flow measuring device is in fluid communication with the tank. The fluid flow measuring device has a totalizer counter and batch measurement capability. The batch value in units of fluid volume or mass measurement is configured into the fluid flow measuring device. At the start of the batch, the fluid flow measuring device sends a ready signal to the controller that it is waiting to start the batch. The controller sends a start signal to the fluid flow measuring device that will initialize (zero reset) the totalizer counter and also tells the fluid flow measuring device that the batch has started and the totalizer to start the count of flow measurement.