【摘要】 甲醇气相羰基化制备乙酸的钴催化剂（ＹＳＣｏ）的研究潘平来，柳忠阳，黄茂开，袁国卿（中国科学院化学研究所，北京１０００８０）关键词甲醇，羰基化，乙酸，钴催化剂通过甲醇羰基化制备乙酸是目前乙酸工业最先进的技术路线．该法与乙烯和乙醇氧化法相比较，无论从原料...更多还原

【Abstract】 new kind of YS--supported cobalt catalyst (YSCo) for the vapor phase carbonylation of methanol to produce acetic acid has been prepared. The carbonylation of methanol over YSCo was carried out in acontinuous flow reactor with methyl iodide as cocatalyst. Because of aspecial carbide formed through hot cracking of polyvinylidene chloride as the support, this catalyst has a large specific surface area (1000 m2/g) and evenly distributed porosity (its pore diameter distribution is concentrated in a range of 0. 8 ￣ 1. 2 nm), as well as an excellent thermostability and mechanical strength. The effect of the reaction temperature and the amount of cocatalyst CH3I on the conversion of methanol isinvestigated. The reaction rate of methanol carbonylation catalyzed byYSCo reached 285 g AcOH/g Co-h under relatively mild reaction conditions, which is much higher than that of the Ni/activated carbon catalyst (182 AcOH/g Ni-h) reported in literature.更多还原