Preparation of CuCl/C Catalyst for the Synthesis of Dimethyl Carbonate: Effects of Calcination Temperature

用於碳酸二甲酯合成之CuCl/C觸媒的製備：煅燒溫度之效應

劉端祺(Tuan-Chi Liu) ； 張中興(Chung-Shin Chang)

《Journal of the Chinese Institute of Chemical Engineers》 38卷1期 (2007/01) Pp. 29-34

摘要

本研究製備了一個很少被研究的CuCl/C觸媒，並應用於甲醇的氧化羰基化反應。觸媒是以含浸法製備，不溶於水的氯化亞銅是以鹽酸溶解，製備觸媒時的煅燒溫度對觸媒的影響在本研究中被探討。結果顯示，當緞燒溫度增加時，觸媒表面的主要成分由CuCl(上標 2- 下標 3)轉變為CuCl，然後變為Cu2Cl(OH)3，最後再轉變為Cu^0。其中CuCl被認為是生成碳酸二甲酯的活性成分，研究並發現，當觸媒於300℃煅燒時其表面具有最多的CuCl。

並列摘要

Activated carbon supported cuprous chloride, a rarely examined catalyst, was prepared and applied to the oxidative carbonylation of methanol. The catalyst was prepared by impregnation. Water insoluble cuprous chloride was dissolved in hydrochloric acid. The effects of the calcinations temperature in preparing the catalysts were examined. The results showed that, as the temperature was increased, the major surface species in the catalyst shifted from CuCl3(superscript 2-) to CuCl, then to Cu2Cl(OH)3, and finally to Cu^0. Cuprous chloride appeared to be the active species for the production of dimethyl carbonate (DMC), and maximum amount of cuprous chloride in the catalyst occurred at a calcinations temperature of 300℃.

並列關鍵字

Oxidative carbonylation ； Dimethyl carbonate ； Cuprous chloride