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公开(公告)号:US6051742A
公开(公告)日:2000-04-18
申请号:US211284
申请日:1998-12-14
IPC分类号: C07D301/24 , C07C29/66 , C07C31/36 , C07D303/04
CPC分类号: C07C29/66
摘要: A process for hypochlorinating unsaturated alpha-olefins to produce chlorohydrins which comprises forming a microemulsion of water and an unsaturated alpha-olefin and then adding an oxidant to the microemulsion under conditions sufficient to form the chlorohydrins. The microemulsion is formed by adding a non-nucleophilic surfactant and, optionally, a co-surfactant, to the mixture of water and unsaturated alpha-olefin.
摘要翻译: 一种用于低级不饱和α-烯烃以生产氯代醇的方法,其包括形成水和不饱和α-烯烃的微乳液,然后在足以形成氯代醇的条件下向微乳液中加入氧化剂。 通过向水和不饱和α-烯烃的混合物中加入非亲核表面活性剂和任选的助表面活性剂形成微乳液。
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公开(公告)号:US5876602A
公开(公告)日:1999-03-02
申请号:US964441
申请日:1997-11-04
CPC分类号: B01D67/0093 , B01D69/125 , B01D71/56
摘要: Composite polyamide reverse osmosis membranes are treated with an aqueous chlorinating agent at a concentration of 200 to 10,000 ppm for a time sufficient to improve flux, lower salt passage and increase the stability to base. In a preferred embodiment the membrane is treated with heated water at temperature of 40.degree. C. to 100.degree. C. before being exposed to the chlorine treatment.
摘要翻译: 复合聚酰胺反渗透膜用浓度为200〜10,000ppm的氯化剂水溶液处理足够的时间,以改善通量,降低盐通过量,增加对碱的稳定性。 在优选的实施方案中,在暴露于氯处理之前,用40℃至100℃的温度的水处理该膜。
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