摘要:
This disclosure is concerned with the use of supported platinum halide, Group IVA metal halide catalysts suitable for the hydroformylation of .alpha.-olefin substrates to predominantly linear, straight-chain aldehydes.
摘要:
Steam dehydrocyclization of paraffinic hydrocarbons to aromatic hydrocarbons is effected in the presence of catalyst, typically a supported rhodium catalyst bearing copper.
摘要:
Steam dehydrocyclization of paraffinic hydrocarbons to aromatic hydrocarbons is effected in the presence of catalyst, typically a supported rhodium catalyst bearing copper.
摘要:
A method is provided for preparing a mixture of lower aliphatic alcohols characterized by containing a substantial proportion of aliphatic alcohols having from 2 to 6 carbon atoms by reacting a mixture of carbon monoxide and hydrogen under suitable conditions of temperature and pressure in the presence of a catalyst comprising molybdenum, a metal from the group consisting of cobalt, iron and nickel, and copper, said catalyst being modified by the addition of a promoter from the class consisting of potassium, cesium and rubidium, said promoter being employed at a concentration ranging from about 1.8 to 13.0 micromoles of said alkali per square meter of surface area of said catalyst.
摘要:
Lube oil, characterized by improved properties, may be prepared containing polymers having pendant N-hydrocarbylcarboxamide groups - typically N-(N',N'-dihydrocarbylaminohydrocarbyl) carboxamide groups.
摘要:
A method for preparing vicinal nitronitrates by simultaneously contacting an alkene with oxygen and dinitrogen tetroxide in the presence of concentrated sulfuric acid. The nitronitrates so formed are useful as fuel additives as well as intermediates in the preparation of surfactants, fuel and lubricant additives, insecticides, fungicides, pharmaceuticals and polymers.
摘要:
A method for preparing omega-aminoalkanoic acids by the steps of (1) nitro-oxidizing a cycloalkene to a cyclic alpha-nitroketone, (2) cleaving and esterifying a cyclic alpha-nitroketone with an alcohol to form an alkyl omega-nitroester, (3) catalytically hydrogenating the nitroester to an aminoester and (4) hydrolyzing the aminoester to an aminoalkanoic acid.