中南大学学报（自然科学版）2017，Vol.48Issue(4)：851-859,9.DOI:10.11817/j.issn.1672-7207.2017.04.001
溶液体系中含锌矿物表面硫化研究
Surface sulfidization of zinc minerals in solution system
摘要
Abstract
The sulfidizing mechanism and surface properties of znic minerals (sphalerite/smithsonite/hemimorphite) after sulfidization with Na2S in different conditions were studied. The results show that it is hard to make smithsonite and hemimorphite sulfidizing well at normal temperature because the chemical reactions of HS- with metal ions on the surface of minerals are inadequate and crystallized ZnS forms is poor at the surfaces. But it can obviously make sulfidization better by reconditioning with Pb2+ion. Zinc oxide (smithsonite/hemimorphite) flotation can be achieved with xanthate collectors after treating with Na2S+Pb2+. Ion exchange between Zn2+and Pb2+occurs on the sulfidized mineral surfaces, which strengthens sulfidizing process and causes xanthate absorption of mineral surfaces to increase.关键词
含锌矿物/硫化/金属离子/黄药/疏水性Key words
zinc minerals/sulfidization/metal ions/xanthate/hydrophobicity分类
矿业与冶金引用本文复制引用
张国范,蒋世鹏,冯其明,张佰发..溶液体系中含锌矿物表面硫化研究[J].中南大学学报（自然科学版）,2017,48(4):851-859,9.基金项目
国家重点基础研究发展计划(973计划)项目(2014CB643402)(Project(2014CB643402) supported by the National Basic Research Development Program (973 Program) of China) （973计划）
