PROCESS FOR PRODUCING HEXAFLUOROCYCLOBUTENE AND PROCESS FOR PRODUCING HEXAFLUOROCYCLOBUTANE
申请人:DAIKIN INDUSTRIES, LTD.
公开号:EP0716065A1
公开(公告)日:1996-06-12
Manufacturing method for hexafluorocyclobutene in which 1,2-dichlorohexafluorocyclobutane is dechlorinated using hydrogen in the presence of a metal oxide and/or silicon oxide catalyst. Manufacturing method for (Z)-1,2,3,3,4,4-hexafluorocyclobutane which carries out the hydrogen-adding reaction (hydrogen reduction) of the raw material, 1,2-dichlorohexafluorocyclobutane, in the presence of a rhodium catalyst, or which carries out vapor-phase hydrogen reduction of hexafluorocyclobutene in the presence of a palladium catalyst.
Using this manufacturing method, hexafluorocyclobutene can easily be derived in a single step with high selectivity from 1,2-dichlorohexafluorocyclobutane which can be obtained readily and at a low cost. This method also produces a high yield of (Z)-1,2,3,3,4,4-hexafluorocyclobutane.
六氟环丁烯的制造方法,其中在金属氧化物和/或氧化硅催化剂存在下使用氢气对 1,2-二氯六氟环丁烷进行脱氯。(Z)-1,2,3,3,4,4-六氟环丁烷的制造方法,该方法在铑催化剂存在下对原料 1,2-二氯六氟环丁烷进行加氢反应(氢还原),或在钯催化剂存在下对六氟环丁烯进行气相氢还原。
使用这种生产方法,可以很容易地从 1,2-二氯六氟环丁烷中一步制得六氟环丁烯,而且选择性高,因为 1,2-二氯六氟环丁烷很容易获得,成本低。这种方法还能生产出高产率的 (Z)-1,2,3,3,4,4-六氟环丁烷。