Abstract: An amorphous chromium (III) phosphate catalyst is used in alkylating aromatics and in the dehydration of alcohols to ethers.

Abstract: A process for recovering 3-methyl-1-butene from a hydrocarbon stream by treating the stream with sulfuric acid to remove compounds which form azeotropes with 3-methyl-1-butene and separating the remaining stream.

Abstract: Dimercaptodihydroxy alkanes are used as a curing agent for epoxide resins and as ore flotation agents.

Abstract: Polyfunctional anionic polymers are useful for inhibiting the adsorption of surfactants and organic polymers in formations such as clay-containing oil reservoirs or clay-containing oil reservoirs which have previously been treated with polyfunctional cationic polymers.

Abstract: A multi-port, fluid-activated valve mechanism in which positive pressures of control fluids are used to sequentially actuate fluids which seal respective valve ports sequentially. Fritted glass and liquid metals impervious to fritted glass are used as valving means.

Abstract: A caustic wash process to remove mercaptans from a mixture of hydrocarbons, an improvement comprising washing the regenerated caustic with a fraction of said hydrocarbon to remove residual disulfides to improve the overall removal of sulfur from the hydrocarbon feed stream.

Abstract: An amorphous chromium (III) phosphate catalyst is used in alkylating aromatics and in the dehydration of alcohols to ethers.

Abstract: The upgrading of heavy, high-metals content oils is optimized when certain solvent mixing and countercurrent flow techniques and/or certain solvent/feed ratios and/or certain extractor internals and extraction residence times are employed.

Abstract: An amorphous chromium (III) phosphate catalyst is used in alkylating aromatics and in the dehydration of alcohols to ethers.

Abstract: Dimercaptodihydroxy alkanes, such as 1,10-dimercapto-2,9-dihydroxydecane, are used as a curing agent for epoxide resins and as ore flotation agents.

Abstract: A cracking catalyst used to crack oil to produce gasoline or higher-boiling hydrocarbon fuel is contacted with both (A) antimony or a compound thereof such as antimony tris(0,0-dipropyl phosphorodithioate) and (B) a modifying composition consisting essentially of carbon, hydrogen, nitrogen, and sulfur produced by the treatment of a metal salt of a dialkyl dithiocarbamate with a hydrolyzable germanium (IV) compound such as germanium tetrachloride, the contacting of the catalyst with (A) and (B) prior to, during, or after use of the catalyst in a cracking process being effective in precluding or reducing adverse effects of metals such as nickel, vanadium, and iron.

Abstract: The yield and the selectivity of an oxidation reaction of alkyl substituted benzenes to ketones and phenols in the presence of hydrogen bromide is increased through the use of cerium oxide, triphenylborate, boron phosphate and water.

Abstract: A new class of ion exchange agents comprises water soluble polymers called polyelectrolytes sorbed onto ion exchange functional substrates.

Abstract: A process for passivating metals in a cracking operation comprising treating the cracking catalyst with antimony tris(hydroxyhydrocarbylthiolate).

Abstract: A Pd/heteropolyacid/surfactant catalyst system, when used with proper diluents, improves the oxidation of olefins to ketones, while reducing corrosive effects.

Abstract: When added to a water-based workover or completion fluid, a mixed polysaccharide such as a malto-dextrin reduces the gel strength and water loss from said fluid, simultaneously increasing yield point.

Abstract: A process for passivating metals in a cracking operation comprising treating the cracking catalyst with antimony tris(hydroxy-hydrocarbylthiolate).

Abstract: A process for the separation of isomeric cresols includes the step of crystallizing from a medium containing phenolic and solvent components.

Abstract: The purification of bis(4-hydroxycyclohexyl) alkane, particularly hydrogenated bisphenol A (HBPA) is carried out via recrystallization from at least one halogen-containing solvent solution.

Abstract: A process of recovering the hydrocarbon values from low organic carbon content deposits comprises the hydrotreating of hydrocarbons from those deposits in the presence of supercritical alkane-containing solvent.