Abstract: The process of regenerating a stable organic soluble molybdenum-containing catalyst suitable for epoxidation of olefins with a hydroperoxide which comprises thermally precipitating and separating a molybdenum-containing solid obtained from a spent catalyst stream derived from a molybdenum catalyzed epoxidation of an olefin and solubilizing the precipitated solid by contacting with a liquid composition comprising a peroxy compound, a monohydroxy alcohol, optionally a polyhydroxy alcohol, and an organic dicarboxylic acid present in an amount of at least about 0.2 parts, by weight, of molybdenum contained in said solid.
Abstract: A process for separating metal sulfide minerals from an ore containing metal sulfide minerals and silicate clays by subjecting the finely divided ore to anionic flotation using an anionic collector to produce a metal sulfide mineral concentrate containing silicate clay, separating the anionic collector from the concentrate and subjecting the concentrate to cationic flotation to selectively float silicate and produce as a residual product a metal sulfide mineral concentrate containing reduced amounts of silicate clay.
Abstract: A method for positioning a large diameter shaft from the surface into the earth and at least partially through a subterranean oil-bearing formation, said method comprising(a) Positioning a central well near the center of a selected shaft location, said central well extending at least partially through said oil-bearing formation;(b) Positioning a plurality of wells at a selected distance outside the diameter of said shaft and about said shaft, said wells extending at least partially through said oil-bearing formation;(c) Injecting a fluid through at least a portion of said wells into said oil-bearing formation to remove oil from said oil-bearing formation;(d) Producing fluids from said central well;(e) Injecting water into said oil-bearing formation through said portion of said wells after the injection of said fluid through said portion of the said wells;(f) Freezing a zone about said location; and,(g) Excavating said shaft.
Abstract: A cell for the electrolytic deposition of metal at low temperatures and low electrical consumption in which an anode of a metal oxide and reducing agent immersed in an electrolytic molten halide salt bath comprises lithium chloride and sodium fluoride, the bath formulated to have high electrical conductivity and very low solubility for the metal oxide, as well as the recovered metal. The electrolytic molten halide salt bath is substantially absent of the metal to be recovered.
Abstract: Novel organic water-soluble antimony compounds are prepared by reacting an alkanolamine with a hydroxycarboxylic acid to form an intermediate product and then reacting the intermediate product with an antimony oxide. These compounds are useful for use as catalyst metal poison passivators.
Type:
Grant
Filed:
November 19, 1984
Date of Patent:
June 17, 1986
Assignee:
Atlantic Richfield Company
Inventors:
Marilyn W. Blaschke, Richard F. Miller, John Link
Abstract: Novel organic water-soluble antimony compounds are prepared by reacting ammonia or an alkylamine with a hydroxycarboxylic acid to form an intermediate product and then reacting the intermediate product with an antimony oxide. These compounds are useful for use as catalyst metal poison passivators.
Type:
Grant
Filed:
November 16, 1984
Date of Patent:
June 17, 1986
Assignee:
Atlantic Richfield Company
Inventors:
Marilyn W. Blaschke, Richard F. Miller, John Link
Abstract: Alkoxylated ether sulfate anionic surfactants of this invention are prepared by conventional procedures, e.g., oxyalkylation with propylene oxide or 1,2-butylene oxide of a straight chain plasticizer range alcohol; optionally followed by oxyalkylation with ethylene oxide or with a mixture of ethylene oxide and higher alkylene oxide; sulfation of the alkoxylated product; and neutralization of the sulfated derivative. The alkoxylated ether sulfate anionic surfactants of the present invention are liquids which exhibit superior detergency to polyester fabrics, excellent hard water stability, organic solubility, low foaming, low odor, and exhibit excellent compatibility with non-ionic and other surfactants in detergent formulations.
Type:
Grant
Filed:
June 25, 1984
Date of Patent:
June 10, 1986
Assignee:
Atlantic Richfield Company
Inventors:
Haven S. Kesling, Jr., Hyman D. Gillman
Abstract: Mixtures of alkoxylated ether sulfate anionic surfactants of this invention are prepared by conventional procedures, e.g., oxyalkylation with propylene oxide or 1,2-butylene oxide of a plasticizer range linear or branched "oxo" alcohol; optionally followed by oxyalkylation with ethylene oxide or with a mixture of ethylene oxide and higher alkylene oxide; sulfation of the alkoxylated product; and neutralization of the sulfated derivative. The alkoxylated ether sulfate anionic surfactant compositions of the present invention are liquids which exhibit superior detergency to polyester fabrics, excellent hard water stability, low foaming, low odor, and exhibit excellent compatibility with non-ionic and other surfactants in detergent formulations.
Type:
Grant
Filed:
June 25, 1984
Date of Patent:
June 3, 1986
Assignee:
Atlantic Richfield Company
Inventors:
Haven S. Kesling, Jr., Hyman D. Gillman
Abstract: The impact resistance of molded polyamide resin molding compositions is improved by incorporating thereinto an elastomer grafted with a polymer comprised of recurring units of, in weight percent, (A) from about 60 to about 95 vinyl aromatic monomer, (B) from about 5 to about 40 of at least one acid selected from the group consisting of acrylic acid, methacrylic acid, partially neutralized acrylic acid, partially neutralized methacrylic acid, totally neutralized acrylic acid and totally neutralized methacrylic acid and (C) 0 to about 15 acrylate monomer.
Abstract: A process for generating random dialkyl or alkyl aryl peroxide functionality on elastomers is disclosed. Generally, the process involves dissolving an elastomer in a solvent followed by treating the resulting solution with an oxidizing agent in the presence of a catalyst. In a preferred embodiment, the oxidizing agent is a an alkyl or aryl hydroperoxide and the catalyst is a Group VIIa, VIII, Ib or IIb metal.
Abstract: Production of novel hydrocarbon-soluble salts, especially adapted for use as catalysts in the epoxidation of olefinic compounds with an organic hydroperoxide, by reaction of an ammonium molybdate with a carboxylic acid in the presence of an organic amine at specified elevated temperatures while removing water.
Abstract: A method for synthesizing hydrocarbons from a methane source which comprises contacting methane with an oxide of Ru. The oxide is reduced by the contact which is carried at about 500.degree. to 1000.degree. C. Reducible oxides of Ru are regenerated by oxidizing the reduced composition with oxygen.
Abstract: Polyhydroxybutadiene compounds are storage stabilized against reactivity changes by incorporating therein an effective amount of a di or triphenyl phosphine compound of the formula ##STR1## wherein each x is hydrogen, a halogen or an alkyl or alkoxy group having from 1 to 10 carbon atoms and y is an alkyl group having from 1 to 10 carbon atoms or an aryl group which may be substituted with a halogen or an alkyl or alkoxy group having from 1 to 10 carbon atoms.
Abstract: A method for forming a communication link between two boreholes including first cooling of a zone between the boreholes by pumping a cooling fluid down one borehole and producing it from the other and, after sufficient formation cooling has occurred, raising of the injection pressure at one borehole to initiate a fracture which tends to follow the cooled zone to the second borehole.
Abstract: A process for separating a back contact metallization on a thin film solar cell array into individual cell back electrodes by using a small diameter ultrasonically driven scribe tip with sufficient tip force to remove substantially all of the underlying semiconductor layer.
Abstract: A process for producing primary alcohols from terminal epoxides having a mono-substituted epoxy ring and having from 3 to 6 carbon atoms per molecule which process comprises contacting the epoxide and hydrogen gas with Raney cobalt catalyst under vapor phase conditions in a hydrogenation zone.
Type:
Grant
Filed:
June 2, 1982
Date of Patent:
May 20, 1986
Assignee:
Atlantic Richfield Company
Inventors:
Roger A. Grey, John F. White, Eva M. Beals
Abstract: Production of molybdenum-containing stable catalyst solutions especially adapted for use in the epoxidation of olefinic compounds with an organic hydroperoxide by reaction of molybdenum metal with a peroxy compound and an organic dicarboxylic acid in the presence of monohydroxy alcohol is provided.
Abstract: A thermodynamically miscible polymer composition comprised of a terpolymer having recurring units of methylmethacrylate, N-aryl substituted maleimide, and vinyl aromatic monomer and an acrylonitrile copolymer is disclosed.
Abstract: Expandable styrene polymer particles which have anti-stratification and anti-lumping properties during expansion are produced by dry blending styrene polymer particles in the presence of 0.01-0.04 parts of alkyl and alkylaryl ethers of polyethoxyethanol mono- and diesters of phosphoric acid per 100 parts of polymer particles. The esters may be added as sole anti-stratification or anti-lumping agent or in addition to known anti-lumping agents.
Abstract: Cloudy material in organic diluent solutions of polymers prepared by anionic polymerization with a lithium initiator is removed by treating the polymer solutions resulting from the polymerization with boric acid, separating the solid material from the solutions, and isolating the polymer.