公开(公告)号：US3803262A

公开(公告)日：1974-04-09

申请号：US69262367

申请日：1967-12-01

Applicant: TEXACO DEVELOPMENT CORP

Inventor： GOLDSBY A

IPC: C07C2/62 ,  C07C3/54

CPC classification number: C07C2/62 ,  C07C2527/054 ,  Y10S585/921

Abstract: USED ALKYLATION ACID CATALYST FROM THE ALKYLATION OF AN ISOPARAFFIN AND AN OLEFIN WITH SULFURIC ACID CATALYST IS CONTACTED WITH AN EXCESS OF AN OLEFIN-CONTAINING HYDROCARBON FEED TO FORM A REACTION MIXTURE COMPRISING DIALKYL SUL: FATES AND ALKYLTATION REACTION CONTAMINANTS. THE REACTION MIXTURE IS SEPARATED INTO AN ACID PHASE AND A HYDROCARBON PHASE, BOTH PHASE ARE SEPARATED FROM THE ALKYLATION SULFATES IN THE ACID PHASE ARE SEPARATED FROM THE ALKYLATION CONTAMINANTS BY EXTRACTION WITH ISOBUTANE. THE HPDROCARBON PHASE CONTAINING DIALKYL SULFATES, AND THE DIALKYL SULFATES EXTRACTED FROM THE ACID PHASE ARE PASSED TO THE ALKYLATION REACTION ZONE.