摘要:
The present invention relates to catalysts compositions. More specifically, the present invention relates to catalyst compositions comprising rhodium and indium, and the use of these catalyst compositions in the hydrogenation of carbon dioxide to methanol and in the steam reforming of methanol.
摘要:
The present disclosure generally relates to a silver-based epoxidation catalyst. In certain embodiments, a method is provided for modulating the reactivity of the silver-based epoxidation catalyst, comprising the catalyst being post-treated with at least two different salt solutions. In some embodiments, the treatment results in the deposition of one or more metals onto the surface of the catalyst. In further embodiments, method is also provided of using the silver catalyst to generate an epoxide from an olefin.
摘要:
The present disclosure generally relates to processes for preparation of n -butanol, n -octanol and n -decanol from a reaction mixture comprising ethanoi and n -hexanol by Guerbet condensation. In some aspects, the present disclosure relates to improvements in n -octanol and n -decanol yield and selectivity by the selection of process reaction conditions such as, but not limited to, mole ratio of n -hexanol to ethanol. The present disclosure further generally relates to integrated processes for preparation of n -butanol in a n -butanol reactor from a reaction mixture comprising ethanol and hydrogen to produce a n -butanol product stream by Geurbet condensation comprising n -butanol and n -hexanol and for preparation of n -octanol in a n -octanol reactor from a reaction mixture comprising ethanol, n -hexanol and hydrogen to produce a n -octanol product stream by Geurbet condensation comprising n -butanol, n -hexanol and n -octanol. A predominant proportion of the n -hexanol contained in the n -butanol and n -octanol product streams is isolated and recycled to the n -octanol reaction mixture. In some aspects, the present disclosure relates to improvements in n -octanol and n -butanol yield and selectivity by the selection of process reaction conditions such as, but not limited to, mole ratio of n -hexanol to ethanol and recovery and recycle of n -hexanol.
摘要:
The present invention relates to a catalyst material with an improved specific activity for electrochemical reduction reactions. In particular the present invention relates to a catalyst material for use in catalysing the oxygen reduction reaction at the cathode in a fuel cell.
摘要:
La presente invención trata de un procedimiento de obtención de catalizadores de óxido metálico que comprende galio capaces de sintetizar alcoholes superiores a partir de alcoholes inferiores. También se describe el procedimiento de obtención de dichos catalizadores.
摘要:
A method of preparing catalytic materials comprising depositing platinum or non- platinum group metals, or alloys thereof on a porous oxide support.
摘要:
A solid catalyst comprising an effective amount of iridium and at least one second metal selected from gallium, zinc, indium and germanium associated with a solid support material is useful for vapor phase carbonylation to produce carboxylic acids and esters from alkyl alcohols, esters, ethers or ester-alcohol mixtures. The iridium and at least one second metal are deposited on a support material. In some embodiments of the invention, the catalyst is useful for vapor phase carbonylation.
摘要:
A composite particle comprising a fluorinated surface and a discontinuous layer of gold nanoparticles disposed on the fluorinated surface, articles that include such particles, and methods of using the particles and the articles for removal of ethylene.
摘要:
Diesel oxidation catalysts comprising a first washcoat layer including a platinum group metal impregnated on a promoted non-zeolitic support are described. The promoter is one or more of tin, manganese, indium, group VIII metals. Methods of making and using the diesel oxidation catalyst, including emissions treatment systems, are also described.