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    • 1. 发明公开
    • PROCESS FOR PURIFICATION OF CHLORINATED ALKENES
    • VERFAHREN ZUR AUFREINIGUNG CHLORIERTER BUTADIENE
    • EP2231566A2
    • 2010-09-29
    • EP08867296.9
    • 2008-12-17
    • DuPont Performance Elastomers L.L.C.
    • REDWINE, Terry, Wayne
    • C07C17/358C07C21/20C07C17/395
    • C07C17/10C07C17/23C07C17/25C07C17/395C07C21/20C07C21/21
    • Purified chlorinated alkenes are produced by a process in which a mixture of i) a first chlorinated alkene that has at least one beta-chlorine substituent and no alpha-chlorine substituents and ii) a second chlorinated alkene that has at least one alpha-chlorine substituent is contacted with chlorine in an amount sufficient to further chlorinate the second chlorinated alkene, but which is insufficient to cause conversion of more than 20% of the first chlorinated alkene. The resultant reaction product may be easily enriched to provide a chlorinated alkene product wherein a) the weight percentage of chlorinated alkenes having at least one beta-chlorine substituent and no alpha-chlorine substituents, based on the total weight of the chlorinated alkenes present in the enriched chlorinated alkene product compared to b) the weight percentage of chlorinated alkenes having at least one beta-chlorine substituent and no alpha-chlorine substituents, based on the total weight of the chlorinated alkenes present in the mixture prior to chlorination is increased by at least 0.25 wt.%.
    • 纯化的氯化烯烃通过以下方法制备,其中i)具有至少一个β-氯取代基且不具有α-氯取代基的第一氯代烯烃和ii)具有至少一个α-氯取代基的第二氯化烯烃 与氯接触,其量足以进一步氯化第二氯化烯烃,但不足以引起多于20%的第一氯化烯烃的转化。 所得反应产物可以容易地富集以提供氯化烯烃产物,其中a)基于存在于氯化烯烃中的氯代烯烃的总重量,具有至少一个β-氯取代基且不具有α-氯取代基的氯化烯烃的重量百分数 富含氯化烯烃产物与b)相比,氯化作用下混合物中存在的氯代烯烃的总重量至少有一个β-氯取代基和无α-氯取代基的氯化烯烃的重量百分数至少增加 0.25重量% %。