申请人:Bayer Aktiengesellschaft
公开号:US04950813A1
公开(公告)日:1990-08-21
A process for chlorinating a compound of the formula ##STR1## in which R.sup.1 is a C.sub.1 -alkyl radical, C.sub.1 -alkoxy radical or C.sub.1 -thioalkyl radical, and X.sup.1, X.sup.2, X.sup.3 and X.sup.4 are identical or different hydrogen or halogen, and X.sup.3 may alternatively be ##STR2## or --NCO, comprising, in an initial phase, dissolving a chlorination catalyst in the compound to be chlorinated, continuously metering this solution together with chlorine into a reaction vessel containing the compound to be chlorinated, and, after the initial phase, removing partially or fully chlorinated compounds from the reaction vessel, dissolving fresh chlorination catalyst in the removed compounds, and feeding this catalyst solution, together with chlorine, to the reaction vessel.
一种氯化化合物的方法,其化学式为##STR1##其中R.sup.1是C.sub.1-烷基基团、C.sub.1-烷氧基团或C.sub.1-硫代烷基基团,X.sup.1、X.sup.2、X.sup.3和X.sup.4是相同或不同的氢或卤素,X.sup.3也可以是##STR2##或--NCO,包括在初始阶段,将氯化催化剂溶解在待氯化的化合物中,连续地将这种溶液与氯气一起计量进入含有待氯化化合物的反应容器,并在初始阶段之后,从反应容器中移除部分或完全氯化的化合物,将新鲜的氯化催化剂溶解在所移除的化合物中,将这种催化剂溶液与氯气一起送入反应容器。