氯代脂肪酸季戊四醇单酯浮选剂的合成与应用  

Synthesis of chlorinated fatty acid pentaerythritol monoester and its application as a flotation collector

作　　者：黄齐茂[1] 向平[1] 罗惠华[2] 彭琨[1] 潘志权[1] 

机构地区：[1]武汉工程大学化工与制药学院省部共建绿色化工过程教育部重点实验室,湖北武汉430074 [2]武汉工程大学环境与城市建设学院,湖北武汉430074

出　　处：《现代化工》2009年第6期49-51,53,共4页Modern Chemical Industry

基　　金：湖北省自然科技基金重大项目(2008CDA03);国家支撑计划项目(2008646)

摘　　要：菜籽油下脚料经皂化、酸化、氯化、酯化等单元反应,制得一种新型氯代脂肪酸季戊四醇单酯,对云南某中低品位磷矿的粗选实验表明,该非离子型磷矿浮选捕收剂具有较好的起泡性和选择性;通过与氯代脂肪酸钠进行复配,改善了该捕收剂在常温下的水溶性,提高了其吸附固着能力及浮选回收率。A new floatation collector, chlorinated fatty acid pentaerythritol monoester, is prepared by steps of saponification, acidification, chlorination and esterification with the plant oil residue as raw material. This non-ionic collector is obviously selective and frothy to some low-grade phosphate rock from Yunnan Province through roughing floatation experiments, and after it is mixed with chlorinated fatty sodium, the mixture shows improved solubility, absorbability and selectivity at normal temperature.

关 键 词：中低品位磷矿 浮选 捕收剂 合成 应用 

分 类 号：TD923[矿业工程—选矿]