公开(公告)号：US06225496B1

公开(公告)日：2001-05-01

申请号：US09363391

申请日：1999-07-29

Applicant: Michael James Baker ,  Timothy Crispin Bristow ,  Robert William Clarke ,  Simon James Kitchen ,  Bruce Leo Williams

Inventor： Michael James Baker ,  Timothy Crispin Bristow ,  Robert William Clarke ,  Simon James Kitchen ,  Bruce Leo Williams

IPC: C07C67055

CPC classification number: C07C67/055 ,  C07C69/01 ,  C07C69/15

Abstract: Process for the production of vinyl acetate in which ethylene, acid and oxygen-containing gas are combined at elevated temperature in the presence of a catalyst material to produce (i) a product mixture comprising vinyl acetate, (ii) a liquid by-product comprising acetic acid and (iii) a gaseous by-product comprising carbon dioxide. The liquid by-product is separated from the product mixture and treated to reduce the water content therein before being recycled to the reactor such that the water entering the reactor comprises less than 6 wt %, (preferably less than 4 wt %, more preferably less than 3 wt %) of the total of acetic acid and water entering the reactor.

Abstract translation: 制备乙烯基乙酸酯的方法，其中乙烯，含酸和含氧气体在升高的温度下在催化剂材料存在下组合以产生（i）包含乙酸乙烯酯的产物混合物，（ii）液体副产物，其包含 乙酸和（iii）包含二氧化碳的气态副产物。 将液体副产物与产物混合物分离，并在再循环至反应器之前进行处理以减少其中的水含量，使得进入反应器的水包含小于6重量％（优选小于4重量％，更优选较少 超过3重量％）进入反应器的乙酸和水的总量。