公开(公告)号：US3557230A

公开(公告)日：1971-01-19

申请号：US3557230D

申请日：1969-05-05

Applicant: ALLIED CHEM

Inventor： KURTZ BRUCE E ,  FITCH ROBERT H

IPC: C07C17/361 ,  C07C17/00

CPC classification number: C07C17/361 ,  C07C19/03

Abstract: THIS INVENTION RELATES TO THE PREPARATION OF CHLOROMETHANES FROM METHYL CHLOROMETHYL ETHER BY REACTING AT ELEVATED TEMPERATURES METHYL CHLOROMETHYL ETHER WITH HYDROGEN CHLORIDE IN THE PRESENCE OF AN ETHER-CLEAVING AGENT COMPRISING CHLOROSULFONIC ACID PREFERABLY HAVING DISSOLVED THEREIN A MINOR AMOUNT OF MERCURY. THE METHYL CHLOROMETHYL ETHER IS PREPARED BY REACTING ESSENTIALLY EQUIMOLAR PROPORTIONS OF METHYL ALCOHOL AND FORMALDEHYDE AND CONTACTING THIS MIXTURE IN COUNTERCURRENT RELATIONSHIP WITH HYDROGEN CHLORIDE IN A REACTION VESSEL AT ELEVATED TEMPERATURES.