生活垃圾焚烧飞灰中无机氯盐的分离研究  

Separation of Inorganic Chlorine Salts from Municipal Solid Waste Incineration Fly Ash

作　　者：谢巧玲[1] 王丹丹[1] 梁高杰 陶虎春 刘思彤 XIE Qiao-ling;WANG Dan-dan;LIANG Gao-jie;TAO Hu-chun;LIU Si-tong(Shenzhen Key Laboratory of Separation Technology for Industrial Application,Research Institute of Tsinghua University in Shenzhen,Shenzhen 518000,Guangdong,China;School of Environment and Energy,Peking University Shenzhen Graduate School,Shenzhen 518000,Guangdong,China)

机构地区：[1]深圳清华大学研究院深圳市工业应用分离技术重点实验室,广东深圳518000 [2]北京大学深圳研究生院环境与能源学院,广东深圳518000

出　　处：《矿冶工程》2022年第1期81-84,89,共5页Mining and Metallurgical Engineering

基　　金：深圳市科技计划基础研究项目(JCYJ20180503182130795)。

摘　　要：对某生活垃圾焚烧飞灰进行了球磨水洗回收无机氯盐、蒸发分离氯化钙和浮选分离钾钠混盐等无机氯盐分离工艺研究,结果表明,球磨水洗-蒸发-浮选综合工艺获得了氯化钾、氯化钠纯度分别为98.31%、96.62%,回收率均高于90%的氯化钾、氯化钠产品。Techniques of separating inorganic chlorine salts from municipal solid waste incineration fly ash were studied by experiments,including a wet ball milling process for recovering inorganic chlorine salts,an evaporation process for separating CaCl_(2) and a flotation process for separating KCl from NaCl.The experiment results show that the processing technique consisting of wet ball milling,evaporation and flotation can yield a KCl concentrate with grade of 98.31%and a NaCl concentrate with grade of 96.62%,both with recovery rate exceeding 90%.

关 键 词：生活垃圾焚烧飞灰 无机氯盐 球磨 水洗 蒸发 浮选 

分 类 号：X781.2[环境科学与工程—环境工程]