-
1.Process of separating vinyl xylenes from ethyl xylenes and other products 失效
Title translation: 从乙基二甲苯和其他产物中分离乙烯基二甲苯的方法公开(公告)号:US2607720A
公开(公告)日:1952-08-19
申请号:US3635748
申请日:1948-07-01
Applicant: CALIFORNIA RESEARCH CORP
Inventor: ELWELL WILLIAM E , CHILDRESS JR HERMAN L