中南大学学报（自然科学版）2016，Vol.47Issue(5)：1459-1464,6.DOI:10.11817/j.issn.1672-7207.2016.05.001
瓜尔胶和黄原胶对方解石浮选的抑制行为差异及机理
Depressant behavior and mechanism of guar and xanthan gums on calcite flotation
摘要
Abstract
The depressant behavior and mechanism of guar and xanthan gums on calcite flotation were investigated through flotation experiment, adsorption study,zetapotential measurement and infrared spectroscopy measurement. The results show thatwhenpHis8.8 and oleate concentrationis 0.3 mmol/L, xanthan gum with a dosage of 50mg/L can markedly reduce the adsorption capacity of sodium oleate on calcite surfaces, and hence decrease the calcite recovery, while a higher dosage of 100mg/L for guar gum should be added in order to achieve the similar depressant effect.The guar gumisadsorbedon calcite surface through hydrogen bonding, while xanthan interacts with calcite through chemisorption and hydrogen bonding.关键词
方解石/浮选/瓜尔胶/黄原胶/抑制/油酸钠Key words
calcite/flotation/guar gum/xanthan gum/depressant/sodium oleate分类
矿业与冶金引用本文复制引用
高志勇,宋韶博,孙伟,胡岳华,钟宏..瓜尔胶和黄原胶对方解石浮选的抑制行为差异及机理[J].中南大学学报（自然科学版）,2016,47(5):1459-1464,6.基金项目
国家自然科学基金资助项目(51404300)；中国博士后科学基金资助项目(2015M570689)；湖南省自然科学基金资助项目(2015JJ3141)(Project(51404300)supported by theNational Natural Science Foundation of China （51404300）
Project(2015M570689)supportedby China Postdoctoral Science Foundation （2015M570689）
Project(2015JJ3141)supportedby Hunan Provincial Natural Science Foundation of China) （2015JJ3141）
