一氯甲烷副产硫酸的循环利用技术  

Recycling technology of sulfuric acid produced as a by-product in chloromethane production

作　　者：邱树锋 梁鑫鑫 徐林波 QIU Shufeng;LIANG Xinxin;XU Linbo(Hangzhou Dongri Energy-efficient Technology Co.,Ltd.,Hangzhou 310000,China;Jiangsu Liwen Chemical Co.,Ltd.,Changshu 215500,China)

机构地区：[1]杭州东日节能技术有限公司,浙江杭州310000 [2]江苏理文化工有限公司,江苏常熟215500

出　　处：《氯碱工业》2024年第11期36-38,共3页Chlor-Alkali Industry

摘　　要：简述了一氯甲烷副产硫酸的循环利用技术,介绍了副产硫酸的来源,分析了有机杂质的形成原因对有机杂质进行分离回收,并将硫酸中水分脱除,浓缩成95%的硫酸回用至一氯甲烷工序。该技术对环境友好,回收成本与采购新硫酸的成本相差不大。The recycling technology of sulfuric acid produced as a byproduct in chloromethane production is briefly described.The source of the by-product sulfuric acid is introduced.The formation causes of the organic impurities contained therein are analyzed.The organic impurities are separated and recovered.The sulfuric acid is dehydrated and concentrated into 95%sulfuric acid which is reused in the chloromethane process.This technology is environmentally friendly,and the recycling cost is comparable to the cost of purchasing new sulfuric acid.

关 键 词：副产硫酸 循环利用 有机杂质 浓缩 一氯甲烷 

分 类 号：X781.2[环境科学与工程—环境工程]