矿产保护与利用Issue(3)：58-64,7.DOI:10.13779/j.cnki.issn1001-0076.2017.03.011
Ca2+-CO32--Gly--H2O体系热力学分析
Thermomechanical Analysis of Ca2+-CO32--Gly--H2O System
摘要
Abstract
The thermodynamics model of dissolution was established according to the thermodynamic equilibrium equation of calcium carbonate dissolution in the glycine system (Gly--H2O system).The total concentration of calcium ions, free calcium ion concentration, free glycine ion concentration, free carbonate ion concentration, calcium species distribution, and glycine species distribution were analyzed at 298 K.The results showed that calcium carbonate could be dissolved in acidic glycine system (pH<7).The dissolution of calcium carbonate was mainly attributed to the acid leaching effect.In the alkaline glycine system (7<pH<14), calcium carbonate was dissolved with the aid of glycine ions and calcium ions.Due to the weak reaction ability of glycine ions and calcium ions, calcium carbonate could not be dissolved in alkaline glycine system.关键词
CaCO3/热力学/氨基乙酸Key words
calcium carbonate/thermodynamics/glycine分类
矿业与冶金引用本文复制引用
窦爱春,刘云建,苏明如,扬天足..Ca2+-CO32--Gly--H2O体系热力学分析[J].矿产保护与利用,2017,(3):58-64,7.基金项目
国家自然科学基金资助项目(51604124) （51604124）
江苏省自然科学资金资助项目(BK20140558) （BK20140558）
江苏大学高级人才资金资助项目(13JDG097) （13JDG097）
