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公开(公告)号：US3657376A
公开(公告)日：1972-04-18
申请号：US3657376D
申请日：1970-06-03
Applicant: BASF AG
Inventor： STUEBINGER ADOLF , MUELLER HERBERT , OVERWIEN HERMANN
CPC classification number: C07C1/24 , C07C2527/167 , C07C11/18
Abstract: PROCESS FOR THE MANUFACTURE OF ISOPRENE BY CANALYTIC DEHYDRATION OF 3-METHYL-3-BUTEN-1-OL IN THE PRESENCE OF CALCIUM PHOSPHATE AS CATALYST AT ELEVATED TEMPERATURES, WHEREIN DEHYDRATION IS CARRIED OUT, PREFERABLY IN THE PRESENCE OF STREAM, AT TEMPERATURES BETWEEN 200* AND 300*C. USING A 3-METHYL-3-BUTEN-1-OL HAVING A PURITY OF A LEAST 85% BY WEIGHT BASED ON THE TOTAL WEIGHT OF OXYGEN-CONTAINING ORGANIC COMPOUNDS PRESENT IN THE STARTING MATERIAL. ISOPRENE IS AN IMPORTANT MONOMER, FOR EXAMPLE IN THE PRODUCTION OF SYNTHETIC RUBBER.
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