[EN] PROCESS FOR THE PREPARATION OF CHLOROFLUOROALKENES<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE CHLOROFLUOROALCÈNES
申请人:SOLVAY FLUOR GMBH
公开号:WO2010060868A1
公开(公告)日:2010-06-03
Hydrochlorofluoroalkenes can be produced by dehydrofluorination of hydrochlorofluoroalkanes over X-ray amorphous high surface metal fluoride or X-ray amorphous or weakly crystalline metal oxide fluoride wherein the metal is selected from the 2nd, 3rd or 4th main group or any subgroup of the periodic system of elements. High-surface aluminium fluoride or aluminium oxide fluoride are especially suitable as catalysts. For example, CF3CH2CHClF is reacted to produce CF3CH=CHCl, and CF3CH2CClFCH3 is reacted to form CF3CH2CCl=CH2 and/or CF3CH=CClCH3.
氢氯氟烯烃可以通过在X射线非晶态高表面积金属氟化物或X射线非晶态或弱晶体金属氧化物氟化物上进行氢氯氟烷的脱氟反应而制备,其中金属被选择自元素周期表的第2、3或4主族或任何亚族。高表面积的氟化铝或氧化铝氟化物是特别适合的催化剂。例如,CF3CH2CHClF被反应生成CF3CH=CHCl,CF3CH2CClFCH3被反应形成CF3CH2CCl=CH2和/或CF3CH=CClCH3。