申请人:Poss Andrew Joseph
公开号:US20110288350A1
公开(公告)日:2011-11-24
Disclosed is a process for the preparation of fluorine-containing olefins comprising contacting a chlorofluoroalkane with hydrogen in the presence of a catalyst at a temperature sufficient to cause replacement of the chlorine substituents of the chlorofluoroalkane with hydrogen to produce a fluorine-containing olefin. Also disclosed are catalyst compositions for the hydrodechlorination of chlorofluoroalkanes comprising copper metal deposited on a support, and comprising palladium deposited on calcium fluoride, poisoned with lead and reducing the in the presence or absence of a dehydrochlorination catalyst under conditions effective to form a product stream comprising cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336).
揭示了一种制备含氟烯烃的方法,包括在存在催化剂的情况下,将氯氟烷与氢接触,以使氯氟烷的氯取代基被氢取代,从而产生含氟烯烃。还揭示了用于氯氟烷的氢化脱氯的催化剂组合物,包括沉积在载体上的铜金属,以及沉积在氟化钙上的钯,受铅毒化并在存在或不存在脱氯催化剂的条件下还原,以形成包含顺式-1,1,1,4,4,4-六氟-2-丁烯(HFO-1336)的产品流的有效条件。