工程科学学报2017，Vol.39Issue(9)：1321-1330,10.DOI:10.13374/j.issn2095-9389.2017.09.004
低品位氧硫混合铜矿的酸性制粒及机理
Acid agglomeration and mechanism analysis of a low-grade oxide--sulfide mixed copper ore
摘要
Abstract
Agglomeration technology is one of the most effective measures to enhance the poor heap permeability of ores caused by the presence of fine particles. Selecting the proper acid resistant binder is key to the successful heap leaching of copper ore. The ag-glomeration of oxide-sulfide mixed copper ore was studied in this paper, and results show that Biometek-WLAG001 is an ideal acid resistant binder. The effects of binder amount, water spray amount, rotational speed, curing time, aging acid addition amount, and aging time on the compressive and wet strengths of agglomerated pellets were investigated in single-factor experiments. The effects of binder amount, curing time, aging acid addition amount, and aging time on the wet strength of agglomerated pellet were further studied via a response surface methodology, and results were optimized and analyzed by Design-Expert 8. 0 software. The interaction mecha-nism between the binder and the ore was investigated by Fourier transform infrared spectroscopy analysis and Zeta potential measure-ments. Results reveal that the binder and ore undergo chemical adsorption but not electrostatic attraction.关键词
氧硫混合铜矿/低品位/制粒/黏结剂/渗透性Key words
oxide and sulfide mixed copper ore/low-grade/agglomeration/binder/permeability分类
矿业与冶金引用本文复制引用
罗毅,温建康,武彪,尚鹤..低品位氧硫混合铜矿的酸性制粒及机理[J].工程科学学报,2017,39(9):1321-1330,10.基金项目
国家自然科学基金资助项目(51574036) （51574036）
