Abstract: The catalyzed oxidative alkoxycarbonylation of amines and substituted amines to form carbamates is disclosed. The process involves alkoxycarbonylation in the presence of a palladium-based catalyst using carbon monoxide, an alkanol and an oxygen-transer agent.

Abstract: A process for the reactivation of vanadium-phosphorus-oxygen catalyst with alkyl esters of phosphoric acid and water is disclosed. The catalysts are useful for the manufacture of maleic anhydride from C.sub.4 hydrocarbon benzene feedstock.

Abstract: There is disclosed a process for the preparation of a benzophenone, which process comprises contacting a feed comprising a 3-cyclohexene carboxylic acid in the vapor phase and under suitable conditions with a ketonic decarboxylative coupling catalyst to convert said carboxylic acid into a bis (3-cyclohexene) ketone and contacting said bis (3-cyclohexene) ketone with a dehydrogenation catalyst to dehydrogenate said bis (3-cyclohexene) ketone to provide said benzophenone. Suitably, the coupling catalyst comprises an oxide of manganese. A Group VIII metal-containing catalyst is a typical dehydrogenation catalyst.

Abstract: A process for the reactivation of a vanadium-phosphorus-oxygen catalyst promoted by metals selected from the group consisting of zinc, molybdenum, niobium, tungsten, uranium, cobalt and tin with alkyl esters of phosphoric acid and water is disclosed. The catalysts are useful for the manufacture of maleic anhydride from butane, butene, butadiene or benzene feedstock.

Abstract: A process for the manufacture of a phosphorus-vanadium oxide and a phosphorus-vanadium-co-metal catalyst suitable for the oxidation of butane to maleic anhydride is disclosed. The catalyst is prepared by reacting, in an aqueous medium, a vanadium compound, inorganic acid and, if used, a metal oxide. Ortho-phosphoric acid is then added to form a soluble vanadium-phosphorus or a vanadium-phosphorus-metal catalyst. The acidified water is removed and aliphatic alcohols and either aromatic acids or aromatic anhydrides, or a mixture of these, are added and the alcohols are removed. The solid phosphorus-vanadium, or phosphorus-vanadium-metal oxide is recovered under vacuum.

Abstract: A process for the manufacture of a phosphorus-vanadium oxide and a phosphorus-vanadium-co-metal catalyst suitable for the oxidation of butane to maleic anhydride is disclosed. The catalyst is prepared by reacting, in an aqueous medium, a vanadium compound, inorganic acid and, if used, a metal oxide. Ortho-phosphoric acid is then added to form a soluble vanadium-phosphorus or a vanadium-phosphorus-metal catalyst. The acidified water is removed and aliphatic alcohols and either aromatic acids or aromatic anhydrides, or a mixture of these, are added and the alcohols are removed. The solid phosphorus-vanadium, or phosphorus-vanadium-metal oxide is recovered under vacuum.

Abstract: A novel catalyst for the oxidation of butane to produce maleic anhydride comprising a phosphorus and vanadium mixed oxide wherein the catalyst is prepared by using P.sub.2 O.sub.5 in an organic medium wherein the catalyst is not precipitated. The catalyst has a specific phase identified by a characteristic X-ray diffraction pattern. A process for the manufacture of the catalyst and a process for the manufacture of maleic anhydride from butane feedstock utilizing the novel catalyst is disclosed. Maleic anhydride is a well-known industrial chemical used in the manufacture of polyester, and maleic anhydride also has utility as a food stuff.

Abstract: A novel catalyst for the oxidation of butane to produce maleic anhydride comprising a phosphorus and vanadium mixed oxide wherein the catalyst is prepared by using P.sub.2 O.sub.5 in an organic medium wherein the catalyst is not precipitated. The catalyst has a specific phase identified by a characteristic X-ray diffraction pattern. A process for the manufacture of the catalyst and a process for the manufacture of maleic anhydride from butane feedstock utilizing the novel catalyst is disclosed. Maleic anhydride is a well-known industrial chemical used in the manufacture of polyester, and maleic anhydride also has utility as a food stuff.

Abstract: A process for the manufacture of a phosphorus/vanadium/metal oxide catalyst suitable for the oxidation of butane to maleic anhydride can be prepared by reacting orthophosphoric acid in an aliphatic alcohol and reacting a vanadium compound with an acid and the metal in the aliphatic alcohol to produce the phosphorus/vanadium/metal oxide catalyst.

Abstract: A process for the manufacture of a phosphorus/vanadium/metal oxide catalyst suitable for the oxidation of butane to maleic anhydride can be prepared by reacting in an aqueous medium a vanadium compound, inorganic acid and metal oxide, then adding orthophosphoric acid to form a soluble vanadium phosphorus metal oxide catalyst, removing the acidified water and adding an aliphatic alcohol, removing the alcohol and recovering under vacuum the solid phosphorus vanadium metal oxide catalyst.

Abstract: A novel catalyst for the oxidation of butane to produce maleic anhydride comprising a phosphorus and vanadium mixed oxide wherein the catalyst is prepared by using an organic medium and has a specific phase identified by characteristic X-ray pattern. A process for the manufacture of maleic anhydride from butane feedstock utilizing the novel catalyst.

Abstract: Hexa(meta-,para-carboxyphenyl)benzene compounds. The esters are useful as plasticizers for polyvinylchloride, heat transfer agents, hydraulic fluids, and insulating oils. The acid is suitable as a cross-linking agent for polymers containing hydroxyl or amine groups.

Abstract: A novel catalyst for the oxidation of butane to produce maleic anhydride comprising a phosphorus and vanadium mixed oxide promoted by zinc wherein the catalyst is prepared by using an organic medium and has two specific phases identified by characteristic X-ray pattern. A process for the manufacture of maleic anhydride from butane feedstock utilizing the novel catalyst.

Abstract: A novel catalyst for the oxidation of butane to produce maleic anhydride comprising a phosphorus and vanadium mixed oxide promoted by uranium wherein the catalyst is prepared by using an organic medium and has two specific phases identified by characteristic X-ray pattern. A process for the manufacture of maleic anhydride from butane feedstock utilizing the novel catalyst.

Abstract: A novel catalyst for the oxidation of butane to produce maleic anhydride comprising a phosphorus and vanadium mixed oxide wherein the catalyst is prepared by using an organic medium and has a specific phase identified by characteristic X-ray pattern. A process for the manufacture of maleic anhydride from butane feedstock utilizing the novel catalyst.

Abstract: 2,3-Di-(carboxyphenyl) oxirane compounds and essentially linear polyesters and copolyesters therefrom. The esters are useful as plasticizers for polyvinylchloride.