Abstract: A boria promoted hydrotreating catalyst is made having a microporous region with high surface area for desulfurization and preferably a macroporous region to transport large metal containing molecules into the interior of the catalyst particle. The alumina support has 0.1 to 5% boria to form a hydrotreating catalyst which minimizes the formation of tetrahedrally coordinated boron. It is calcined to a temperature of 1400.degree. F. or less to maintain a high desulfurization activity. Conventional hydrotreating catalytic elements from Groups VB, VIB, VIIIB and VA of the Periodic Table are added. Less than 75% of the boron is in tetrahedral coordination as measured by Magic Angle Spinning .sup.11 B NMR.

Abstract: The addition of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferred modes, heteropolyoxoanions and isopolyoxoanions containing tungsten, molybdenum and vanadium, individually or in combination, are described. The use of copper as the redox-active metal component shows reduced allylic reactivity. The elimination of chloride from the catalyst system provides substantial engineering advantages over the prior art, particularly, the reduction of corrosion and chloro-organic by-product formation. The use of redox-active metal components and/or ligands makes the palladium-polyoxoanion catalyst system industrially practicable.

Abstract: A catalystic composition suitable for producing acrylonitrile from propylene, ammonia and oxygen (or oxygen-containing gas), which composition is represented by the following formula:(Mo).sub.a (W).sub.b (Bi).sub.c (Pb).sub.d (B).sub.e (Sb).sub.f (X).sub.g (O).sub.h(where: X is chromium or iron; a, b, c, d, e, f, g and h denote respectively number of atoms for molybdenum, tungsten, bismuth, lead, boron, antimony, X and oxygen, and wherein, if it is given that a+b=12, 0.ltoreq.b.ltoreq.7, 0.4.ltoreq.c.ltoreq.7, 2.ltoreq.d.ltoreq.12, 0.2/22.ltoreq.e/a.ltoreq.40/22, 0.ltoreq.f/a.ltoreq.25/22, and 0.ltoreq.g/a.ltoreq.3/22; and h denotes the number of oxygen necessary for satisfying the atomic valence for the individual constituent elements other than oxygen).

Abstract: Composition comprising a crystalline aluminum borate and from about 0.05 to 50 wt % at least one compound selected from the group consisting of an alkali metal and alkaline earth metal compound based on the weight of the aluminum borate.

Abstract: A highly active promoted catalyst, for use in hydrotreating oils, comprising a support, selected from the group consisting of alumina, silica and silica-alumina, and a promoter comprising a hydroxymercaptide of one or more metals, wherein said metals are selected from Group IB, Group VIB, Group VIIB or Group VIII of the Periodic Table, is economically produced without the use of a high temperature calcination or high temperature presulfiding step. In accordance with the invention, the hydroxymercaptide promoter used in said promoted catalyst may be the reaction product of a mercaptoalcohol and one or more metal compounds, wherein said metal compounds comprise metals selected from Group IB, Group VIB, Group VIIB or Group VIII of the Periodic Table.

Abstract: There is disclosed a catalyst, which catalyst comprises a hydrogenation component comprising chromium, molybdenum, and at least one metal of Group VIII, a crystalline molecular sieve zeolite, and a porous refractory inorganic oxide. Suitable molecular sieve zeolites are those having pore diameters of at least 5 .ANG. (0.5 nm) and containing exchangeable cations, for example, faujasite-type crystalline aluminosilicates, mordenite-type crystalline aluminosilicates, ZSM-type crystalline aluminosilicates, and AMS-type crystalline metallosilicates.There is also disclosed a process, which process comprises contacting a hydrocarbon stream containing a substantial amount of nitrogen under hydrotreating conditions and in the presence of hydrogen with the aforesaid catalyst.

Abstract: A process for producing an antimony-containing oxide catalyst supported on silica for use in a fluidized bed reaction is described, by the steps of preparing a slurry containing an antimony compound, a polyvalent metal compound, and silica sol as the essential ingredients, heat treating the slurry at a pH of 7 or less and at a temperature of 40.degree. C. or higher, and thereafter spray-drying the slurry and calcining the dried particles, wherein said silica sol has a multi-peak particle size distribution profile that is derived by using a mixture of silica sol A in an amount corresponding to form 10 to 90 wt % of the total silica in the catalyst and silica sol B in an amount corresponding to 90 to 10 wt % of the total silica in the catalyst, with silica sols A and B having different average particle sizes, provided that the relations 3<da<100 and 0.1<da/db<0.9 are satisfied by da (m.mu.), the average particle size of silica sol A, and db (m.mu.), the average particle size of silica sol B.

Abstract: A catalytic body which is substantially amorphous is formed from at least two materials vacuum deposited on a cool substrate or sprayed on a cool surface to provide a local order non-equilibrium structural configuration. The amorphous body comprises a composition of at least one metal and a second component which maintains the amorphous character of the composition. The body has an increased number and desired type of catalytically active sites. In most applications, the composition includes at least initially a component which is removed by leaching or vaporization to leave a rough surface with a large surface to volume ratio. The resulting composition is sometimes annealed to relax or modify the local structure thereof to provide a more reactive structural configuration. In an electrode form of the invention, the catalytic body is highly conductive, resistant to corrosion and degradation under current reversal and has low overvoltage characteristics when used in electrochemical cells.

Abstract: An improved process for the preparation of a catalyst for the polymerization of ethylene, and an improved process for preparing an ethylene polymer therewith. An improved supported chromium-containing catalyst is prepared by reacting (1) a chromium chelate of a 1,3-diketo compound and (2) a vanadium chelate or a vanadyl chelate of a 1,3-diketo compound, separately or jointly with (3) an organometallic compound of an element from Group II or III of the periodic system, jointly contacting the resulting reaction products of (1) and (2) with (3) with an inert inorganic supporting material so as to deposit such reaction products thereon, whereafter the supporting material containing the reaction products is heated in a non-reducing atmosphere at a temperature of between 200.degree. and 1200.degree. C. The 1,3-diketo compounds of (1) and (2) are the same or different, and have the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different, R.sub.1 and R.sub.

Abstract: This invention relates to a three-way catalyst for use in the purification of exhaust gas from an internal combustion engine, a method of making the same and an exhaust system including a three-way catalyst for an internal combustion engine. Specifically, the three-way catalyst comprises a substrate suitable for the purification of exhaust gas from an internal combustion engine wherein the catalyst comprises a substrate, a refractory oxide layer, tungsten and/or one or more tungsten containing compounds and one or more platinum group metals.

Abstract: Disclosed is a process which comprises calcining an intimate mixture of elemental sulfur and compounds of the other elements in the following empirical atomic formula and further treating the resulting mass to obtain the new catalyst:XY.sub.a Z.sub.b S.sub.c O.sub.dwherein:X is a transition element or a mixture thereof selected from the group V, Mo, W;Y is a stability enhancing element or a mixture thereof selected from the group C, Si, B, Ce, Th, Nb, Zr, Ta, U, where "a" can vary from 0 to 2;Z is a promoter element or a mixture thereof selected from the group Co, Ni, Fe, where "b" can vary from 0 to 0.1;S is the element sulfur, where "c" can vary from 1.3 to 6.0;O is the element oxygen, where "d" can vary from 0 to the upper limit required by stoichiometry.

Abstract: A process is provided for the preparation of coated iron phosphorus oxide containing catalysts useful in the oxydehydrogenation of saturated carboxylic acids, wherein the catalysts are prepared by partially wetting a carrier or support in an aqueous silica solution/suspension, contacting the partially wet carrier with a powder of the iron phosphorus oxide catalyst, drying and calcining.

Abstract: A hydrocarbon conversion catalyst containing a Group VIB metal on a porous refractory oxide is prepared by impregnating support particles with a solution containing Group VIB metal components and citric acid, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization, demetallization and denitrogenation.

Abstract: An element selected from Groups IA, IB, IIB, IIIA and IIIB is incorporated into an iron bismuth molybdate oxide complex catalyst by impregnation.

Abstract: Hydrogen is generated by contacting an alkaline aqueous solution of formaldehyde with at least one catalyst selected from the group consisting of molybdenum, tungsten, molybdenum carbides, tungsten carbides, molybdenum nitrides, tungstenum borides, copper, silver, gold and compounds of copper, silver and gold.Hydrogen can be generated at ambient temperature under atmospheric pressure and, therefore, complicated steps or complicated devices are unnecessary.