Abstract: This invention concerns a corrosion-inhibitor nominally comprised of a phenolic compound and a hydroxide-bearing compound capable of imparting a pH of 9 to water, the inclusion thereof in aerated water-based fluids and foams, and the use of these fluids in wellbore applications; particularly applications conducted at elevated temperatures.

Abstract: The present invention provides a water dispersible particulate polymer composition having improved water dispersibility comprising a water soluble particulate polymer which has been contacted with a finely divided particulate dispersant comprised of at least one insoluble or sparingly soluble fatty acid or salt thereof so that the particles of the water soluble particulate polymer have dispersed thereon said finely divided particulate dispersant, a method for making said water soluble particulate polymer composition, and the use thereof in viscosifying water-based fluids.

Abstract: A process, apparatus and control methodology for transferring loads between drivers in adjacent refrigeration cycles in a cascaded refrigeration process has been developed thereby enabling more efficient driver operation. Load transfer is effected by cooling the higher boiling point refrigerant liquid prior to flashing via an indirect heat transfer with the lower boiling point refrigerant vapor in a adjacent cycle prior to compression of said stream.

Abstract: This invention concerns tin-, cerium-, and base-treated tin-bearing lignosulfonates, a process for their preparation from calcium lignosulfonate, and a process for the use thereof as drilling fluid additives.

Abstract: This invention concerns a novel process and apparatus for producing relatively small quantities of liquefied natural gas (LNG) by processing a side stream at a conventional NGL expander gas plant.

Abstract: This invention concerns a corrosion-inhibitor nominally comprised of a phenolic compound and a hydroxide-bearing compound capable of imparting a pH of 9 to water, the inclusion thereof in aerated water-based fluids and foams, and the use of these fluids in wellbore applications; particularly applications conducted at elevated temperatures.

Abstract: This invention concerns an apparatus and process for effectively contacting oil, catalyst, and a gas. This invention has specific applications in the design and operation of catalytic cracking units and specifically, the processing and upgrading of heavy oils to higher valued components.

Abstract: This invention concerns a process and apparatus for removing oil from liquefied petroleum gases. In a preferred embodiment, the activated carbon bed is pretreated with odorant thereby enabling oil to be removed from odorized liquefied petroleum gases with negligible removal of odorant.

Abstract: The present invention provides a water dispersible particulate polymer composition having improved water dispersibility comprising a water soluble particulate polymer which has been contacted with a finely divided particulate dispersant comprised of at least one insoluble or sparingly soluble fatty acid or salt thereof so that the particles of the water soluble particulate polymer have dispersed thereon said finely divided particulate dispersant, a method for making said water soluble particulate polymer composition, and the use thereof in viscosifying water-based fluids.

Abstract: A composition is provided which, when applied to a metal surface, forms a corrosion-inhibiting film thereon. The composition comprises an epoxy resin, an effective amount of a curing agent for the epoxy resin, an alcohol, and a hydrocarbon diluent. The composition is applied by contacting the metal surface with the composition as one solution or as a hydrocarbon solution of the epoxy resin and a solution comprising the alcohol and the curing agent. The composition is particularly useful in the treatment of down-well metal surfaces in oil and gas wells to inhibit the corrosion of the metal.

Abstract: A process capable of operation under hostile conditions for accelerating the sedimentation of suspended solids in an aqueous suspension using a flocculating agent comprising a water-soluble polymer composition produced from a monomer composition comprising at least one of a hydrophilic N-vinyl lactam or a hydrophilic vinyl-containing sulfonate.

Abstract: A process has been developed for treating plastic and plastic composite materials wherein a protective epoxy coating is placed on said material by contacting with a composition comprising an epoxy resin, an effective amount of curing agent for the epoxy resin, an alcohol and a hydrocarbon solvent. In another embodiment, the protective epoxy coating is applied by a process comprising the sequential contacting of the plastic or plastic composite surface with a first hydrocarbon solution comprised of an epoxy resin and a hydrocarbon solvent, and a second hydrocarbon solution comprised of an alcohol, a curing agent, and a hydrocarbon solvent.

Abstract: An additive for reducing water loss from cement comprising a tetrapolymer, a base, an electrolyte, at least one surfactant, and water is disclosed. A process for producing cement slurries with improved water loss properties, as well as an improved method for cementing gas and oil well is also disclosed.

Abstract: This invention concerns a resin formulation for an organically pigment polyolefin resin suitable for tubing and pipe service. The resin formulation is comprised of ethylene polymers, a UV stabilizer, an antioxidant, and a tetrachloroisoindolinone pigment. The resulting resin possesses excellent heat stability and color fastness. The dilute concentration of organic pigment in the inventive formulation presents a cost acceptable alternative to the widely- and routinely-used cadmium- and lead-bearing dyes and pigments which are classified as toxic chemicals under SARA Title III Section 313.

Abstract: This invention relates to the preparation of poly(dithio thiadiazole) by combining an oxidizing agent, a dithio thiadiazole, and an aprotic polar solvent thereby producing a polymer precipitant which may then be washed to remove residual contaminants.

Abstract: Alkyl xanthates of phenols are prepared by a method comprising contacting an alkali metal salt of a phenol that is substantially free of water with carbon disulfide and an alkylating agent while employing a solvent in the reaction mixture.

Abstract: A composition is provided which, when applied to a metal surface, forms a corrosion-inhibiting film thereon. The composition comprises an epoxy resin, an effective amount of a curing agent for the epoxy resin, an alcohol, and a hydrocarbon diluent. The composition is applied by contacting the metal surface with the composition as one solution or as a hydrocarbon solution of the epoxy resin and a solution comprising the alcohol and the curing agent. The composition is particularly useful in the treatment of down-well metal surface in oil and gas wells to inhibit the corrosion of the metal.

Abstract: This invention concerns an improved means of oxidizing aqueous dispersions of antimony trioxide to colloidal hydrous antimony pentoxide in a continuous flow system. The oxidant is hydrogen peroxide and the continuous flow system nominally consists of a static mixer and a tubular reactor.

Abstract: Product from the reaction of mercaptan with sulfur in the presence of a basic catalyst is treated by contacting with an alcohol-based solution containing an oxidizing agent and an inorganic basic catalyst followed by the recovery of a purified polysulfide product.

Abstract: Process and apparatus for continuous production of disulfides by reacting at least one mercaptan and oxygen in the presence of a suitable catalyst selected from the group consisting of an alkaline earth metal oxide alone or in combination with an alkali metal oxide, on a refractory support, or a basic form of macroreticular polystyrene-divinyl benzene copolymer.