矿产保护与利用Issue(3)：124-129,6.DOI:10.13779/j.cnki.issn1001-0076.2018.03.022
EDTA二钠钙对十二胺体系中菱锌矿浮游性的影响
Effect of EDTA Na2-Ca on the Pelagic Activity of Smithsonite in Dodecylamine System
摘要
Abstract
The influence of ethylenediamine tetraacetic acid disodium calcium ( EDTA Na2-Ca) on the flotability of smithsonite in the dodecylamine (DDA) cation flotation system was investigated by single-mineral flotation test.The results showed that EDTA Na2-Ca could not collect smith-sonite activated by sodium sulfide, but could enhance the collecting ability of DDA at pH 9.2～11.1.The better flotation performance could be achieved when the mixed collector with 40%mass ratio of DDA replaced by EDTA Na2-Ca was used.The results of flotation solution chemical cal-culation, mineral dissolution tests, and dynamic potential tests showed that EDTA Na2-Ca signifi-cantly improved the flotation recovery of smithsonite by promoting the dissolution of Zn2+ on the smithsonite surface and reducing the potential of the mineral surface.关键词
菱锌矿/十二胺/乙二胺四乙酸二钠钙/浮选Key words
smithsonite/dodecylamine/ethylenediamine tetraacetic acid disodium calcium/flotation分类
矿业与冶金引用本文复制引用
张威,毕洪山,张津,李国栋,郝海永,韩聪,魏德洲,沈岩柏..EDTA二钠钙对十二胺体系中菱锌矿浮游性的影响[J].矿产保护与利用,2018,(3):124-129,6.基金项目
国家自然科学基金资助项目(51674067、51422402) （51674067、51422402）
中央高校基本科研业务费项目(N150101001、N160106004、N170106005) （N150101001、N160106004、N170106005）
