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1. 发明申请

US20150274684A1 PROCESS FOR PREPARING EPICHLOROHYDRIN FROM DICHLOROHYDRIN 有权
标题翻译：从二氯乙锭制备二氢氯仿的方法
公开(公告)号：US20150274684A1
公开(公告)日：2015-10-01
申请号：US14432996
申请日：2013-10-23
申请人： AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
发明人： Carolina Anna Maria Christina Dirix , André Michiel Koolaard , Antoon Jacob Berend Ten Kate , Eilertdina Henderika Renkema
IPC分类号： C07D301/26 , C07D301/32
CPC分类号： C07D301/26 , C07D301/24 , C07D301/32 , Y02P20/127
摘要： The present invention pertains to a process for preparing a product rich in epichlorohydrin, comprising the steps of: a) reacting a mixture of dichlorohydrin and a base at a temperature in the range of 0-40° C. during a period of time in the range from 1 second to 180 minutes, wherein the base is present in a less than stoichiometric amount, to obtain a reaction mixture comprising epichlorohydrin and brine; b) subjecting at least part of the reaction mixture to a separation step to form a product fraction which is rich in epichlorohydrin and a brine fraction which is lean in epichlorohydrin; c) subjecting at least part of the brine fraction to a purification step to yield a purified brine. It has been found that the process according to the invention allows the manufacture of epichlorohydrin from dichlorohydrin on an industrial scale at high yield, while at the same time providing a brine with a low total organic carbon content without extensive separation being necessary.
摘要翻译：本发明涉及一种制备富含表氯醇的产物的方法，包括以下步骤：a）在0-40℃的温度范围内使二氯丙醇和碱的混合物在一段时间内在范围为1秒至180分钟，其中碱以小于化学计量的量存在，以获得包含表氯醇和盐水的反应混合物; b）使至少部分反应混合物进行分离步骤以形成富含表氯醇的产物级分和贫表面氯醇的盐水级分; c）使至少部分盐水部分进行纯化步骤以产生纯化的盐水。已经发现，根据本发明的方法允许以高产率在工业规模上从二氯丙醇生产表氯醇，同时提供总有机碳含量低的盐水，而不需要大量分离。

2. 发明授权

US09447061B2 Process for preparing epichlorohydrin from dichlorohydrin 有权
标题翻译：二氯丙醇制备环氧氯丙烷的方法
公开(公告)号：US09447061B2
公开(公告)日：2016-09-20
申请号：US14432996
申请日：2013-10-23
申请人： AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
发明人： Carolina Anna Maria Christina Dirix , André Michiel Koolaard , Antoon Jacob Berend Ten Kate , Eilertdina Henderika Renkema
IPC分类号： C07D301/27 , C07D301/26 , C07D301/24 , C07D301/32
CPC分类号： C07D301/26 , C07D301/24 , C07D301/32 , Y02P20/127
摘要： The present invention pertains to a process for preparing a product rich in epichlorohydrin, comprising the steps of: a) reacting a mixture of dichlorohydrin and a base at a temperature in the range of 0-40° C. during a period of time in the range from 1 second to 180 minutes, wherein the base is present in a less than stoichiometric amount, to obtain a reaction mixture comprising epichlorohydrin and brine; b) subjecting at least part of the reaction mixture to a separation step to form a product fraction which is rich in epichlorohydrin and a brine fraction which is lean in epichlorohydrin; c) subjecting at least part of the brine fraction to a purification step to yield a purified brine. It has been found that the process according to the invention allows the manufacture of epichlorohydrin from dichlorohydrin on an industrial scale at high yield, while at the same time providing a brine with a low total organic carbon content without extensive separation being necessary.
摘要翻译：本发明涉及一种制备富含表氯醇的产物的方法，包括以下步骤：a）在0-40℃的温度范围内使二氯丙醇和碱的混合物在一段时间内在范围为1秒至180分钟，其中碱以小于化学计量的量存在，以获得包含表氯醇和盐水的反应混合物; b）使至少部分反应混合物进行分离步骤以形成富含表氯醇的产物级分和贫表面氯醇的盐水级分; c）使至少部分盐水部分进行纯化步骤以产生纯化的盐水。已经发现，根据本发明的方法允许以高产率在工业规模上从二氯丙醇生产表氯醇，同时提供总有机碳含量低的盐水，而不需要大量分离。

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