SUPERACIDIC FSO3H/HF CATALYZED BUTANE ISOMERIZATION .1.

被引:17
作者
OLAH, GA [1 ]
FAROOQ, O [1 ]
HUSAIN, A [1 ]
NI, D [1 ]
TRIVEDI, NJ [1 ]
OLAH, JA [1 ]
机构
[1] UNIV SO CALIF,DEPT CHEM,LOS ANGELES,CA 90089
关键词
BUTANE ISOMERIZATION; SUPERACID CATALYSIS;
D O I
10.1007/BF00772077
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Superacid catalyzed isomerization of butane was studied. Highly efficient isomerization of butane to 2-methylpropane (isobutane) was achieved using fluorosulfuric acid containing up to 5% of hydrogen fluoride acting as a protic co-acid. The isomerization when carried out in excess FSO3H at 21-degrees-C in a flow system gave approximately 70% conversion to 2-methylpropane with generally less than 3% cracking. When 2-methylpropane was isomerized under similar conditions about 12% butane was formed. Attempted isomerization of pentane and hexane with prolonged reaction times in a static system results in predominant protolytic cleavage (cracking).
引用
收藏
页码:239 / 247
页数:9
相关论文
共 11 条
  • [1] [Anonymous], 1985, SUPERACIDS
  • [2] ASINGER F, 1968, PARAFFINS, P696
  • [3] BAGNO A, 1990, J ORG CHEM, V55, P4248
  • [4] BROUWER RM, 1968, RECL TRAV CHIM PAY B, V87, P1435
  • [5] OLAH GA, 1974, Patent No. 3855346
  • [6] OLAH GA, 1973, Patent No. 3766286
  • [7] OLAH GA, 1974, Patent No. 3839489
  • [8] OLAH GA, 1973, Patent No. 3708553
  • [9] OLAH GA, 1973, CARBOCATIONS ELECTRO, P116
  • [10] SCHULZ H, 1989, C4 HYDROCARBONS DERI