发明名称 PROCESS FOR THE PRODUCTION AND PURIFICATION OF N-BUTYL ACRYLATE
摘要 A PROCESS FOR THE PRODUCTION OF N-BUTLY ACRYLATE (BUACA) INCLUDING THE STEPS OF ESTERIFYING ACRYLIC ACID (HACA) WITH N-BUTANOL (N-BUOH ) IN A REACTION ZONE (1), OBTAINING A CONDENSATE (9) FROM THE OVERHEAD VAPORS FROM THE REACTION ZONE (1) WHICH SEPARATES INTO ORGANIC (11) AND AQUEOUS PHASES, FEEDING THE ORGANIC PHASE (11) COMPRISING A MAJOR PORTION OF BUACA AND MINOR PORTIONS OF BUOH, WATER AND LIGHT ENDS IMPURITIES TO A FINISHING FRACTIONATION ZONE(15) FROM WHICH IS OBTAINED A SIDE STREAM (18) OF A FINISHED HIGH PURITY BUACA AND AN OVERHEAD CONDENSATE (22) COMPRISING BUACA, BUOH, WATER AND LIGHT ENDS, RECYCLING MOST OF THE OVERHEAD CONDENSATE FROM THE FINISHING ZONE (15) TO THE REACTION ZONE (1), FEEDING THE REMAINDER OF SUCH CONDENSATE (24) TO A PURGE RECOVERY ZONE (25), OBTAINING AN OVERHEAD CONDENSATE (31) FROM THE PURGE RECOVERY ZONE (25) WHICH SEPARATES INTO ORGANIC AND AQUEOUS PHASES EACH CONTAINING A PORTION OF LIGHT ENDS PRODUCED IN THE REACTION, RECYCLING A PORTION OF THE ORGANIC PHASE (34) AS REFLUX TO THE PURGE RECOVERY ZONE (25) AND DISCARDING THE REMAINDER (35). THE ENTIRE AQUEOUS PHASE (38) OF THE OVERHEAD CONDENSATE OF THE PURGE RECOVERY ZONE (25) IS DISCARDED. THE DISCARDING OF A PORTION OF THE ORGANIC PHASE (35) AND THE ENTIRE AQUEOUS PHASE(38) OF THE OVERHEAD CONDENSATE OF THE PURGE RECOVERY ZONE(25) HAS THE EFFECT OF PREVENTING OR RETARDING THE BUILDUP OF LIGHT ENDS IN THE SYSTEM.
申请公布号 MY135836(A) 申请公布日期 2008.07.31
申请号 MYPI20004229 申请日期 2000.09.12
申请人 DOW GLOBAL TECHNOLOGIES INC. 发明人 MAHMOOD NAYYER AZAM JAWAID;DOUGLAS EDWARD SCHEPP
分类号 C07B61/00;C07C67/08;C07C67/54;C07C69/54 主分类号 C07B61/00
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