Abstract: A process for selectively dehydrogenating organic compounds, and particularly for dehydrogenating dimethyltetralins to dimethylnaphthalenes, by contacting the organic compound at an elevated temperature with a catalyst prepared by treating a composition comprising an alumina support material and platinum group metal with an excess amount of an alkaline solution of an alkali metal salt.

Abstract: A method of separating organic materials is disclosed utilizing a chromatographic packing material. This packing material includes a coated support material which is a chromatographically suitable substrate. An immobilized butadiene acrylonitrile polymer coating is provided on the substrate. The copolymer can be crosslinked by gamma radiation, or by means of a crosslinking agent such as dicumyl peroxide. The support material can be silica, alumina, diatomaceous earth, zeolite, porous glass or carbon, but preferably a spherical lamellar shaped crystals of aluminum hydroxide. the aluminum hydroxide crystals are bonded together at a central core and extend radially outward from a central core with a particle density ranging from 0.3 to 2.5 g/cm.sup.3 and a diameter of 2 to 150 microns.

Abstract: This invention relates to formed, polymeric complexes of metals of the eighth subgroup of the periodic system with ligands of an organosiloxane copolycondensate optionally cross-linked by means of cross-linking agents containing Si, Ti, Zr and/or Al, in the form of statistical, block or mixed copolycondensates. The ratio between the number of moles of phosphine units and the number of moles of bound metal atoms is 1:1 to 1000 to 1 and the ratio between the amine units and the phosphine is preferably 5:95 to 95:5 mole %. The polymeric complex compounds are present macroscopically as spherical particles with a diameter in the range of 0.01 to 3.0 mm, a BET surface of greater than 0 to 1000 m.sup.2 /g, a specific pore volume of 0.01 to 6.5 ml/g and a bulk density of 50 to 1000 g/l. The invention also includes several methods of preparing the complexes with post-treatment stages and the use of the polymeric metal complexes as catalysts in organic chemistry.

Abstract: A shell impregnated catalyst for use in the production of vinyl acetate from ethylene, acetic acid and an oxygen containing gas is provided. The catalyst has a productivity of greater than 661 grams of vinyl acetate per hour per liter of catalyst at 150.degree. C. and consists essentially of:(1) a catalyst support having a particle diameter from about 3 to about 7 mm and a pore volume of 0.2 to 1.5 ml per gram(2) palladium and gold distributed in the outermost 1.0 mm thick layer of the catalyst support particles, and(3) from about 3.5 to 9.5% by weight of potassium acetate.The catalyst is characterized by having a gold to palladium weight ratio in the range 0.60 to 1.25.

Abstract: The invention relates to an adsorbent agent with special advantages to heavy metals, proteins, etc. and is based upon a ligand with an atom sequence (A): N--C--C.sub.n --N, wherein n is 1 or 2, and one terminal, a ring atom N in a heteroaromatic ring system, together with a proximal ring atom C forms a first terminal. The second terminal --C.sub.n --N-- can be an integral part of a heteroaromatic ring system with one or more heteroatoms and through a crosslinking bridge D is attached to P. The first terminal N--C-- can be included in a pyridine or imidazole core. The polymer P is organic and hydrophilic such as polysaccharide, polyvinylalcohol, polyacrylamide, polyacrylester, polyethyleneimide or derivatives thereof, and can also be immobilized by crosslinking, binding or adsorption or inclusion in an inorganic bearer.

Abstract: A catalyst or catalyst component for the polymerization or copolymerization of alpha-olefins in the slurry phase is formed by a process comprising forming a solution of a magnesium-containing species in a liquid and precipitating solid particles from the solution of the magnesium-containing species by treatment with a transition metal halide in the presence of at least one of a tetrabutoxysilane and a tetrabutoxytitanate.

Abstract: A method for the removal and concentration of desired ions such as Sb.sup.3+, Zr.sup.4+, Zn.sup.2+, Pu.sup.4+, Hf.sup.4+, Cu.sup.2+, Ni.sup.2+, Fe.sup.3+, Cd.sup.2+, Ag.sup.+, and Hg.sup.2+ from a multiple ion source solution which may contain larger concentrations of other undesired ions including H.sup.+ comprises bringing the source solution into contact with a compound comprising an aminoalkylphosphonic acid containing ligand covalently bonded through an organic spacer silicon grouping to a solid inorganic support. The aminoalkylphosphonic acid containing ligand portion(s) of the compound has an affinity for the desired ions to form a complex thereby removing the desired ions from the source solution. The desired ions are removed from the compound by contacting the compound with a much smaller volume of a receiving solution having a greater affinity for the desired ions than does the aminoalkylphosphonic acid containing ligand portion of the compound.

Abstract: A catalyst for hydrogenation, dehydrosilylation of ketones, or hydrosililation of dienes or acetylenes, comprising a complex represented the the formula:A.sup.+ [M.sub.2 H(C)).sub.10 ].sup.-wherein A.sup.+ represents an alkali metal cation, an ammonium cation, an iminium cation, or a phosphonium cation; and M represents a chromium atom, a molybdenum atom, or a tungsten atom; anda process for producing dehydrosilylation products of ketones or hydrosilylation products of dienes or acetylenes, which is characterized by using the complex as a catalyst.

Abstract: A polymerization catalyst is formed by producing a solution of a Group IIA or Group IIB halide and an alcohol; contacting the solution with an organometallic compound to form a soluble complex; and contacting the soluble complex with a halide ion exchanging source. An ester or an anhydride can also be combined with the halide solution or the soluble complex. The catalyst thus produced can be combined with an organometallic cocatalyst.

Abstract: A method for sorbing oil comprises contacting the oil with an oil sorbing article comprising a plurality of substantially cross-linked polymer particles having adhesive layers formed on a portion of the outer surfaces of a majority of the particles. The particles are attached together with the adhesive areas to define a plurality of interstitial spaces. The method further comprising allowing the oil to sorb into the article. In the preferred embodiment, the adhesive areas are formed by heating the portion of the outer surfaces to a sufficient temperature to eliminate a portion of the cross-linking. With the cross-linking eliminated, the portion of the outer surfaces becomes tacky enabling adjacent particles to adhere to one another and form the plurality of interstitial spaces. The article comprises interstitial spaces to trap air causing the article to remain on the surface of an aqueous medium.

Abstract: An improved process is disclosed for preparing synthetic lubricant base stocks. Synthetic lubricant base stocks are prepared in good yield by oligomerizing linear olefins using certain acidic calcium montmorillonite clay catalysts which have aluminum nitrate deposited thereon.

Abstract: A process is disclosed for preparing synthetic lubricant base stocks having improved properties. Synthetic lubricant base stocks may be prepared in good yield by oligomerizing linear olefins using certain acidic montmorillonite clay catalysts. When a mixture of poly(isobutylene) and long-chain linear olefin, in which up to about 10 wt. % of the mixture is poly(isobutylene), is co-reacted in the presence of these catalysts, a synthetic lubricant base stock having a high viscosity and a high viscosity index is prepared.

Abstract: A series of new crystalline titanates (CT) are shown to have considerable potential as catalyst supports. For Pd supported catalyst, the catalytic activity for pyrene hydrogenation was substantially different depending on the type of CT, and one was substantially more active than Pd on hydrous titanium oxide (HTO). For 1-hexene hydrogenation the activities of the new CTs were approximately the same as for the hydrous metal oxide supports.

Abstract: Olefins are oligomerized by passing a hydrocarbon feedstock mixture containing olefins of from 2 to 8 carbon atoms over a molecular sieve having a pore diameter of from greater than 4 angstroms to 15 angstroms, and then oligomerizing said olefins by passing the hydrocarbon feedstock over a nickel-containing catalyst at a temperature of from 0.degree.to 200.degree. C. and at a pressure of from 1 to 70 bar absolute.

Abstract: A process for the production of para-oriented dicarboxylic aromatic acids is disclosed in which an aromatic compound, having a tertiary alkyl group, is oxidized with molecular oxygen in the presence of a catalytic composition comprising a cobalt salt, a minor amount of a manganese salt, and a source of chloride in the presence of a solvent.

Abstract: This invention relates to a catalytic component for the polymerization of .alpha.-olefins and provides a catalytic component of magnesium support type capable of exhibiting a high stereoregularity while maintaining an improved strength as well as a high catalytic activity. The features thereof consist in a catalyst component for the polymerization of .alpha.-olefins obtained by contacting (A) a solid component comprising, as essential components, magnesium, titanium, a halogen and an electron-donating compound with (D) an olefin in the presence of (B) a trialkylaluminum and (C) a dimethoxy group-containing compound represented by the general formula R.sup.1 R.sup.2 Si(OCH.sub.3).sub.2 where R.sup.1 and R.sup.2 are, same or different, aliphatic hydrocarbon groups with 1 to 10 carbon atoms and having a volume, calculated by the quantum chemistry calculation, of 230 to 500 .ANG..sup.3 and an electron density of oxygen atoms in the methoxy group, calculated similarly, ranging from 0.685 to 0.800 A. U.

Abstract: A liquid phase process for oligomerization of C.sub.4 and C.sub.5 isoolefins or the etherification thereof with C.sub.1 to C.sub.6 alcohols wherein the reactants are contacted in a reactor with a fixed bed acid cation exchange resin catalyst at an LHSV of 5 to 20, pressure of 0 to 400 psig and temperature of 120.degree. to 300.degree. F. wherein the improvement is the operation of the reactor at a pressure to maintain the reaction mixture at its boiling point whereby at least a portion but less than all of the reaction mixture is vaporized. By operating at the boiling point and allowing a portion of the reaction mixture to vaporize, the exothermic heat of reaction is dissipated by the formation of more boil up and the temperature in the reactor is controlled.

Abstract: 1 Process for producing a catalyst paste for cathodically separable electrophoretic dipping lacquers.2.1 Use was made of dibutyltin oxide by way of a catalyst paste for electrophoretic dipping lacquers, dispersed in pasting binders. An object is to provide a new process for producing such catalyst pastes while saving time and energy.2.2 A process is provided for producing a catalyst paste for cathodically separable electrophoretic dipping lacquers, wherein the dibutyltin oxide is first pre-dispersed with an organic solvent and an organic acid such as is commonly used for neutralizing cathodically separable electrophoretic dipping lacquers, whereupon it is dispersed with the pasting binder and water and ground.2.3 Cathodic electrophoretic dip lacquering making use of catalyst pastes containing dibutyltin oxide.

Abstract: A method for isomerizing a 1-olefin-containing organic feedstock having an average carbon number of about 4 to 5, e.g., 1-butene, to convert 1-olefin to 2-olefin at temperatures less than 200.degree. C., with a double bond isomerization catalyst comprising a zeolite sorbing 30 to 55 mg n-hexane at 90.degree. C., 83 torr, and 15 to 40 mg 3-methylpentane at 90.degree. C., 90 torr, per g dry zeolite in the hydrogen form, e.g., ZSM-22, ZSM-23, or ZSM-35. Catalyst aging is minimal despite operation at low temperatures and high pressures.

Abstract: A vanadium-based catalyst system is treated with an ether as a means of enhancing catalyst activity and polymer productivity.