Vapor phase carbonylation process using group 4 metal promoted iridium catalyst
    1.
    发明授权
    Vapor phase carbonylation process using group 4 metal promoted iridium catalyst 有权
    气相羰基化工艺使用第4族金属促进铱催化剂

    公开(公告)号:US06355837B1

    公开(公告)日:2002-03-12

    申请号:US09383124

    申请日:1999-08-25

    IPC分类号: C07C5112

    摘要: A method for producing esters and carboxylic acids from lower alkyl alcohols, ethers, esters and ester-alcohol reactant mixtures and includes the step of contacting a vaporous mixture of the reactants, carbon monoxide and a halide with a supported catalyst under vapor-phase carbonylation conditions. The catalyst includes iridium and a second metal selected from group 4 (titanium, zirconium, hafnium) metals of the periodic table of elements. Desirably, the iridium and secondary metal are deposited on activated carbon as a support material. In a preferred aspect of the invention, the vapor phase carbonylation process is useful for preparing acetic acid, methyl acetate or a mixture thereof.

    摘要翻译: 一种从低级烷基醇,醚,酯和酯 - 醇反应物混合物生产酯和羧酸的方法,包括在气相羰基化条件下使反应物,一氧化碳和卤化物的气态混合物与负载催化剂接触的步骤 。 催化剂包括铱和选自元素周期表第4族(钛,锆,铪)金属的第二种金属。 理想地,铱和二次金属作为载体材料沉积在活性炭上。 在本发明的优选方面,气相羰基化方法可用于制备乙酸,乙酸甲酯或其混合物。