专利名称：Process for the preparation of hydrochloric
acid purified of foreign halogen
发明人：DICHTL, GOTTFRIED
申请号：EP92105215.5个人业务总结
申请日：19920326
公开号：EP0506050A1
忽必烈墓公开日：
过年压岁钱
19920930
专利内容由知识产权出版社提供
折纸龙爪
专利附图：
摘要：In a process for the preparation of hydrochloric acid, which is free of the other halogens, fluorine, bromine and/or iodine, or hydrogen compounds and salts thereof,from a crude dilute hydrochloric acid, in particular a crude hydrochloric acid obtained in
waste gas scrubbing, which contains at least fluorine as another halide, a fluoride precipitant in the form of a soluble chloride salt is added to the crude dilute hydrochloric acid for parating off hydrogen fluoride and fluorides, and the resulting precipitate is parated off during the precipitation reaction and before the subquent distillation and/or rectification. The prior paration, provided if necessary, of hydrogen bromide and/or hydrogen iodide and salts thereof from the crude dilute hydrochloric acid is carried out by adding chlorine in such a quantity that the elemental halogens bromine and/or iodine are t free, and the are parated off and obtained as a reusable product. The purified hydrochloric acid can be taken without difficulties to any desired industrial further processing.
申请人：QVF GLASTECHNIK GMBH
地址：SCHOSSBERGSTRASSE 11; W-6200 WIESBADEN-SCHIERSTEIN,Schossbergstras 11 6
5201 Wiesbaden DE
关于学习的诗句国籍：DE
代理机构：Andrae, Steffen, Dr.
比较好听的钢琴曲
张国荣语录更多信息请下载全文后查看
>我不怕输
