文献类型：期刊文献

中文题名：粗苯精制新工艺——催化氯化法

英文题名：A new process for refining crude benzole——Catalized chloridization method

作者：俞其鼎[1];黄祖耀[1];杨金根[1];周积翰[1];徐云娟[1]

机构：[1]华东化工学院能源化工系

年份：1987

卷号：19

期号：5

起止页码：563

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus

语种：中文

中文关键词：精制处理;催化;氯化反应;粗苯;粗苯精制;催化氯化

外文关键词：refining;catalysis;chlorination reaction;crude benzole;refining of crude benzole;catalized chloridization

摘要：提出了文题的新工艺。在实验室装置中,其适宜的反应条件为:粗苯200ml;水10ml;催化剂5g;温度60℃;时间60min;通氯量60ml/min。所得产物溴价为0.04g/100ml;含氯量为3.01(wt)%。经5升反应釜扩大试验,产物溴价仍为0.04g/100ml。产物经吹苯水解和精馏后,所得苯的溴价、噻吩含量、含氯量均未检出,酸洗比色小于0.2:甲苯的含氯量也未检出,溴价为0.05g/100ml,酸洗比色0.2。该工艺消除了酸焦油和废酸对环境的污染,苯类产品收率提高约3%。得到的苯和甲苯的质量达到硝化级。
Refining crude benzole with catalized chloridization method was investigated. Themost optimum condition is as follow: 10 ml of water and 5g of catalyst are added into 200ml of crude benzole. The chlorine gas was allowed pass through the crude benzole at thespeed of 60 ml/min for one hour at 60℃. The treated benzole will then contain 3. 01%(by weight) of chlorine and have a bromine value of 0. 04 g/100 ml. The bromine value,thiophene and chlorine are not found by detection in the refined benzene and its colorindex is below 0. 2. Again, chlorine is not found in toluene either, its bromine volue is0. 05 g/100 ml and color index is 0. 2. The proposed method looks to have several advan-tages over the commonly used sulfuric acid process in elevating the total yield by 3% andalmost free from waste material as waste acid, tarry matter, etc.