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1. 发明申请

WO2007058962A1 PROCESS FOR RECOVERY OF CUMENE HYDROPEROXIDE DECOMPOSITION PRODUCTS BY DISTILLATION 审中-公开
标题翻译：通过蒸馏来回收碳氢化合物分解产物的方法
公开(公告)号：WO2007058962A1
公开(公告)日：2007-05-24
申请号：PCT/US2006/043848
申请日：2006-11-10
申请人： SUNOCO, INC. (R & M) , KEENAN, Scott, R. , HARACH, Amber, R. , SKIPWORTH, James, G.
发明人： KEENAN, Scott, R. , HARACH, Amber, R. , SKIPWORTH, James, G.
IPC分类号： C07C409/10 , C07C407/00
CPC分类号： C07C45/53 , C07C37/08 , C07C37/72 , C07C37/74 , C07C37/82 , C07C45/80 , C07C45/82 , C07C39/04
摘要： Products from the decomposition of cuniene hydroperoxide (CHP) are recovered by distillation. The majority of the undesirable by-product acetol (hydroxyacetone) is removed from the phenol stream by distillation wherein the majority of the acetol is carried with an overheads stream comprising acetone, cumene and alphamethylstyrene (AMS). Acetol is subsequently separated from acetone by distillation wherein acetone is taken as an overheads stream and acetol remains with a bottoms stream comprising cumene, AMS and phenol. The acetol, along with residual phenol, is extracted from the cumene and AMS by counter-current washing with an aqueous alkali metal hydroxide. The phenol stream is then distilled to separate phenol from cumene, alphamethylstyrene and higher boiling compounds. The phenol, containing only a small amount of acetol, can then be treated to remove methylbenzofuran by treatment with an acidic resin or solid superacid catalyst without formation of significant amounts of additional methylbenzofuran.
摘要翻译：通过蒸馏回收氢过氧化氢（CHP）分解产物。通过蒸馏从苯酚流中除去大部分不合需要的副产物丙酮醇（羟基丙酮），其中大部分丙酮醇与包含丙酮，枯烯和α-甲基苯乙烯（AMS）的塔顶馏出物携带。 Acetol随后通过蒸馏与丙酮分离，其中将丙酮作为塔顶馏出物流，并且丙酮醇残留有包含枯烯，AMS和苯酚的塔底物流。通过用碱金属氢氧化物水溶液逆流洗涤，从异丙苯和AMS中提取丙酮醇和残留的苯酚。然后将苯酚流蒸馏以将苯酚与枯烯，α-甲基苯乙烯和较高沸点化合物分离。然后可以用酸性树脂或固体超强酸催化剂处理除苯甲呋喃，只含少量丙酮醇，除去甲基苯并呋喃，不形成显着量的甲基苯并呋喃。

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