The compound substrate catalytic converter and its production manner in order to synthesize the ethylene glycol by the hydrogenation of oxalic acid alkyl ester

摘要

Topic The compound substrate catalytic converter in order to synthesize the ethylene glycol by the hydrogenation of oxalic acid alkyl ester and that its production manner is offered are designated as topic.SolutionsAs for this invention, by the hydrogenation of oxalic acid alkyl ester to synthesize the ethylene glycol in regard to the compound substrate catalytic converter and its production manner in order, chemical formula of the said compound catalytic converter to be CuO/ROxMOy, the mass percent content of CuO to be 5% - 60%, the mass percent content of ROx to be 10% - 90%, the mass percent content of MOy to be 0.1% - 60%, x to be the most expensive quantity of R 1/2, y to be, M most expensive number 1/2 R is chosen from midst of Si, Al, Zr and Ti 1 types where be, MThey are 1 types which are chosen from midst of Si, Al, Cr, Zr, Ti, B, Zn, Mo, Ce, Bi and La. Until recently, the catalytic converter in order to synthesize the ethylene glycol by the hydrogenation of the oxalic acid alkyl ester of this invention in comparison with technology, adopts the compound substrate, the substrate of the said type distributes the active ingredient of the copper effectively, the crystal grain of the copper becomes difficult sintering with this, can extend the use life of the catalytic converter. As for the compound substrate, it can adjust the Acid or alkalinity of the catalytic converter surface simultaneously, effectively the generation of the sub- product decreases, it is possible to raise the selectivity of ethylene glycol. Oxalate entire invert ratio reaches 99.9% or more, selectivity of ethylene glycol exceeds 95%. You can use for the industrial production of ethylene glycol this invention. Choice figure It is not