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Organic Compounds -- Part Of The Class 532-570 Series > Azo Compounds Containing Formaldehyde Reaction Product As The Coupling Component > Amino Nitrogen Containing (e.g., Urea, Sulfonamides, Nitrosamines, Oxyamines, Etc., And Salts Thereof) > Hydroxy Containing (h Of -oh May Be Replaced By A Group Ia Or Iia Light Metal) > Acyclic > Polyhydroxy > Preparing By Reduction (e.g., By Hydrogenation, Etc.) Preparing By Reduction (e.g., By Hydrogenation, Etc.)Preparing By Reduction (e.g., By Hydrogenation, Etc.) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.12/01/05 - 20050267318 - Method for the production of 1,4- butane-diol by combined gas-phase and liquid-phase hydrogenation a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 2 to 60 bar into a first reactor and catalytically hydrogenating it to a product which contains mainly optionally alkyl-substituted 7-butyrolactone; b) converting the product stream into the ... 08/18/05 - 20050182281 - Method for the production of 1,4- butanediol a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 10 to 100 bar into a first reactor or into a first reaction zone of a reactor and catalytically hydrogenating it in the gas phase to a product ... ### FreshPatents.com Support |