申请人:Yang Gang
公开号:US20140350312A1
公开(公告)日:2014-11-27
Provided are a fluorination catalyst for preparing 2,3,3,3-tetrafluoropropene and a method using the catalyst for preparing 2,3,3,3-tetrafluoropropene. The catalyst has the following structural formula: Crx(Y,Z)
0.005-0.5
O
0.1-10
F
1.0-3.0
, where Y is one or a combination of two or more among Al, Zn, and Mg, and where Z is a rare earth element having an oxygen-storing/releasing function. The catalyst has in preparing 2,3,3,3-tetrafluoropropene the advantages of increased raw material conversion rate, great product selectivity, and extended catalyst service life.
提供了一种用于制备2,3,3,3-四氟丙烯的氟化催化剂以及使用该催化剂制备2,3,3,3-四氟丙烯的方法。该催化剂具有以下结构式:Crx(Y,Z)
0.005-0.5
O
0.1-10
F
1.0-3.0
,其中Y是Al、Zn和Mg中的一个或两个或两个以上的组合,Z是具有氧储存/释放功能的稀土元素。该催化剂在制备2,3,3,3-四氟丙烯时具有原料转化率增加、产品选择性高和催化剂使用寿命延长的优点。