Abstract:
Molybdenum containing oxidation catalysts are prepared by reducing hexavalent molybdenum to a valence state below +6 prior to or during the catalyst preparation. Reproducible catalysts with superior catalytic activity are conveniently made by this process.
Abstract:
The process in this invention relates to the conversion of organic compounds selected from the group consisting of the nbutylenes, butadiene, crotonaldehyde and furan in a selective manner to maleic anhydride in the presence of a catalyst comprising the mixed oxides of antimony and molybdenum.
Abstract:
1. A process for conversion of chemical energy directly into electrical energy which comprises the steps of supplying an aqueous solution of hydrazine to the interface between an anode and an aqueous electrolyte in a fuel cell, supplying an oxidizing agent to the interface between a cathode and an aqueous electrolyte in said fuel cell said anode and cathode being ionically connected, and electrically connecting said anode and cathode through an electrical load.
Abstract:
Maleic anhydride is made from n-butane or n-butene in a tubular reactor having an undivided reaction zone which contains two different catalysts-the first catalyst converts at least part of the n-butane or n-butene to butadiene and the second catalyst converts at least part of this product to maleic anhydride.
Abstract:
THE INSTANT APPLICATION DEALS WITH A PROCESS FOR THE MANUFACTURE OF MONOOLEFINICALLY UNSATURATED ALIPHATIC NITRILES BY THE CATALYTIC OXIDATION OF OLEFIN USING CYANIDE AND A MOLECULAR OXYGEN-CONTAINING GAS, BUT NO AMMONIA.
Abstract:
Catalysts containing antimony and molybdenum are promoted by the addition of iron or vanadium or mixture thereof to give very desirable catalysts for the preparation of maleic anhydride from 1,3-butadiene, n-butylenes, crotonaldehyde and furan.