COMPOSITIONS OF CHROMIUM OXYFLUORIDE OR FLUORIDE CATALYSTS, THEIR PREPARATION AND THEIR USE IN GAS-PHASE PROCESSES
申请人:Arkema France
公开号:US20190169102A1
公开(公告)日:2019-06-06
The present invention relates to a process for modifying the fluorine distribution in a hydrocarbon compound in the presence of a catalyst, characterized by the use, as catalyst, of a solid composition comprising at least one component containing chromium oxyfluoride or fluoride of empirical formula Cr
x
M
(1-x)
O
r
F
s
, where 2r+s is greater than or equal to 2.9 and less than 6, M is a metal chosen from columns 2 to 12 of the Periodic Table of the Elements, x has a value from 0.9 to 1, s is greater than 0 and less than or equal to 6 and r is greater than or equal to 0 and less than 3, the said solid composition having a crystallinity of less than 20% by weight. The present invention also relates to the solid composition per se.
本发明涉及一种在催化剂存在下修改碳氢化合物中氟分布的方法,其特征在于使用一种固体组合物作为催化剂,所述固体组合物包括至少一种含有铬氧氟化物或经验式为Cr
x
M
(1-x)
O
r
F
s
的氟化物的组分,其中2r+s大于或等于2.9且小于6,M是从元素周期表的2至12列中选择的金属,x的值为0.9至1,s大于0且小于或等于6,r大于或等于0且小于3,所述固体组合物的结晶度重量百分比小于20%。本发明还涉及固体组合物本身。