This invention relates to a process for the production of tetrabromobisphenol-A by the bromination of bisphenol-A, which process features: (a) feeding to a reaction mass (i) bisphenol-A and (ii) a stream of gaseous bromine, the gaseous stream having a Reynold's No. .gtoreq.40,000; (b) the reaction mass containing from about 50 to about 20,000 ppm unreacted bromine and less than 20 wt % HBr; and (c) the reaction mass having precipitated therefrom tetrabromobisphenol-A, all of (a)(ii), (b) and (c) occurring during the bisphenol-A feed.
                            本发明涉及一种通过对
双酚A进行
溴化反应生产四
溴双酚A的方法,其特点在于:(a)向反应体系中加入(i)
双酚A和(ii)一股雷诺数大于或等于40,000的气态
溴流;(b)反应体系中含有约50至20,000ppm未反应的
溴和少于20wt%的HBr;(c)反应体系中沉淀出四
溴双酚A,所有的(a)(ii)、(b)和(c)都发生在
双酚A供料期间。