[EN] PROCESS FOR RECOVERING SULFONIC ACID CATALYST AND NOBLE PRODUCTS FROM ACRYLATE HEAVY ENDS<br/>[FR] PROCÉDÉ DE RÉCUPÉRATION D'UN CATALYSEUR ACIDE SULFONIQUE ET DE PRODUITS NOBLES À PARTIR DE FRACTIONS LOURDES D'ACRYLATE
申请人:DOW GLOBAL TECHNOLOGIES INC
公开号:WO2009091491A1
公开(公告)日:2009-07-23
Sulfonic acid catalyst, e.g., methanesuifonic acid (MSA), and noble products, e.g., acrylic acid, butanol and butyl acrylatε, are recovered from acrylatc reactor blowdown. The blowndown comprises, among oilier things, the Michael ad ducts of the sulfonic acid and acrylate esters. The blowdown is mixed with water, subjected to conditions sufficient to crack or hydrolyze the Michael addυcts into their constitueut parts. These cracking conditions are also sufficient to allow the recovery of the sulfonic acid and constituent parts, as well as other light components of the heavy ends, e.g., unreacted acrylic acid and butanol,
磺酸催化剂,例如甲磺酸(MSA),以及贵重产品,例如丙烯酸、丁醇和丁基丙烯酸酯,从丙烯酸酯反应器废水中回收。废水包括,除其他物质外,磺酸和丙烯酸酯的迈克尔加成物。废水与水混合,经受足以裂解或水解迈克尔加成物成分的条件。这些裂解条件也足以允许回收磺酸和成分,以及其他重端的轻组分,例如未反应的丙烯酸和丁醇。