矿产保护与利用Issue(3)：117-123,7.DOI:10.13779/j.cnki.issn1001-0076.2018.03.021
DL-苹果酸对白云母可浮性的抑制机理
Inhibition Mechanism of DL-malic Acid on the Floatability of Muscovite
摘要
Abstract
The effect of DL-malic acid on the floatability of muscovite was investigated under so-dium oleate system, and the mechanism of DL-malic acid on muscovite was researched by means of FTIR and XPS spectra etc.The results show that floatability of muscovite can be prominently in-hibited by DL-malic acid, because C4H5O5-and C4H4O52-which from DL-malic acid solution could occur competitive adsorption with oleate ions in the pulp, and C4H5O5-and C4H4O52-which ad-sorbed on muscovite surface aroused its surface zeta potential negative direction increase, which caused the electrostatic adsorption action of oleate ions in muscovite surface was weakened.Moreover, C4H5O5-and C4H4O52-contain strong hydrophilic groups, these ions of which adsorbed on muscovite surface caused its surface had hydrophilicity, therefore the floatability of muscovite was inhibited.关键词
油酸钠/DL-苹果酸/白云母/抑制/机理Key words
sodium oleate/DL-malic acid/muscovite/inhibition/mechanism分类
矿业与冶金引用本文复制引用
王宇斌,文堪,王望泊,张鲁..DL-苹果酸对白云母可浮性的抑制机理[J].矿产保护与利用,2018,(3):117-123,7.基金项目
国家自然科学基金(51674184) （51674184）
陕西省教育厅基金(16JK1467) （16JK1467）
