[EN] HETEROGENEOUS CATALYSTS FOR THE SYNTHESIS OF CARBAMATES<br/>[FR] CATALYSEURS HÉTÉROGÈNES POUR LA SYNTHÈSE DES CARBAMATES
申请人:COVESTRO DEUTSCHLAND AG
公开号:WO2019185608A1
公开(公告)日:2019-10-03
The present invention relates to a catalyst for preparing carbamates, in particular aromatic carbamates, comprising a binary oxide having the formula Li_xMx02, wherein 1. is a metal selected from the lanthanoid series and M is a metal selected from the group consisting of Sc, Y, Ti, Zr, Hf, metals from the lanthanoid series and metals from the actinoid series, and wherein x ranges from 0.01 to 0.05. The present invention also relates to a method for producing said catalysts and a method of utilizing said catalysts in the production of carbamates, in particular aromatic carbamates.
本发明涉及一种用于制备氨基甲酸酯催化剂,特别是芳香族氨基甲酸酯的催化剂,包括具有Li_xMxO2式的二元氧化物,其中1.是从镧系金属中选择的金属,M是从Sc、Y、Ti、Zr、Hf、镧系金属和锕系金属组成的金属中选择的金属,并且x范围从0.01到0.05。本发明还涉及一种制备所述催化剂的方法以及利用所述催化剂制备氨基甲酸酯,特别是芳香族氨基甲酸酯的方法。