Su00ecntese of su00eclica micro porous gel and its application to the preparation of catalysts for su00ecntese of C2 oxygenates from singas

摘要

Su00ecntese of su00eclica micro porous gel and its application to the preparation of catalysts for su00ecntese of C2 oxygenates from singas. A summary of the micro porous silica gel and its application to the preparation of the catalysts for C 2 oxygenates synthesis of singas is invented.The small particles of silica gel, which are produced by the process of the gel of the solenoid are heated in a basic solution, followed by drying and / or calcination, and they form the micro porous silica as the support of the catalyst.The basic solution may be a solution or a mixed hydroxides, carbonates, bicarbonates, formates and acetates of alkali metal and ammonium.The micro porous silica obtained may be impregnated with solutions of the rhodium salt and other salts of the element of the transition (as precursors of the promoter), followed by drying and / or calcination, thus giving way to a micro porous silica supported catalyst based on rhodium. The salt of rhodium can be RhCl 3 or Rh (3) 3.The precursors of the promoter can be salt water dissolvable metal of transition metals, salts of the rare earth, alkali salts and salts of the alkali earth metal. The catalysts obtained show high activity and selectivity in the synthesis of C2 oxygenates by the hydrogenation of CO under circumstances process smooth.