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1. 发明授权

US5986148A Di-isopropyl ether synthesis and dry product recovery 失效
标题翻译：二异丙醚合成和干燥产物回收
公开(公告)号：US5986148A
公开(公告)日：1999-11-16
申请号：US101111
申请日：1993-08-02
申请人： James H. Beech, Jr. , Douglas Miller , Jorge Luis Soto , James A. Stoos , Albert H. Wu
发明人： James H. Beech, Jr. , Douglas Miller , Jorge Luis Soto , James A. Stoos , Albert H. Wu
IPC分类号： C07C41/05 , C07C41/00
CPC分类号： C07C41/05 , Y02P20/582
摘要： An improved process for production of diisopropyl ether by conversion of hydrocarbon feedstock containing propene, propane and C.sub.2 -- light gas components. The overall process steps include, (optionally) prefractionating fresh feedstock containing propene, propane and C.sub.2 -- light gas components to provide a reactor feedstream rich in propene; contacting the feedstock and water in a catalytic reactor with acidic catalyst under olefin hydration and etherification conditions; and recovering from the catalytic reactor a liquid reactor effluent stream containing diisopropyl ether, isopropanol, water, unreacted propene, propane, oligomer and C.sub.2 -- light gas components. DIPE product containing C.sub.6 + oligomer is recovered by separating the liquid effluent stream in a stripper column, and extracting the DIPE-rich liquid with water. An improved separation process is employed for removing water to provide DIPE liquid product substantially free of water.
摘要翻译：通过转化含有丙烯，丙烷和C2轻质气体成分的烃原料来改进制备二异丙醚的方法。总体工艺步骤包括（任选地）预分馏含有丙烯，丙烷和C 2-轻质气体成分的新鲜原料，以提供富含丙烯的反应器进料流; 在烯烃水合和醚化条件下，用酸性催化剂在催化反应器中使原料和水接触; 并从催化反应器中回收含有二异丙基醚，异丙醇，水，未反应的丙烯，丙烷，低聚物和C2轻质气体组分的液体反应器流出物流。通过分离汽提塔中的液体流出物流，并用水萃取富含DIPE的液体，回收含有C6 +低聚物的DIPE产物。采用改进的分离方法去除水以提供基本上不含水的DIPE液体产物。

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