Effect of Phosphates on the Metal Ion Activated Surface Complexes at the SiO2-H2O Interface and in Quartz Deactivation in Flotation System

被引：0

作者：

孙中溪

W.Forsling

陈荩

机构：

[1] Central South University of Technology

[2] Changsha

[3] China To whom correspondence should be addressed

[4] Dept.of Mineral Engineering

[5] Division of Inorganic Chemistry Lulea University of Technology

[6] S-951 87 Lulea

[7] Sweden

来源：

JournalofMaterialsScience&Technology | 1992年 / 03期

关键词：

complexation; phosphate; quartz flotation; activation; deactivation; surface complex;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The complexation of phosphates in thequartz-metal ion-H;O-oleate system was studied.Computer assisted calculations with the aid of theadvanced program SOLGASWATER and knownequilibrium constants were used to evaluate themechanism,The calculation results revealed that inthe presence of a certain amount of phosphates,metal ions adsorbed at the quartz-H;O interfacewill be transferred into solution.Thus the competi-tion for metal ions between phosphates and thequartz surface leads to surface deactivation and re-duced floatability.Various distribution diagramsclearly demonstrate the change of surfacecomplexation as a function of added phosphateconcentration.The deactivation products were alsoevaluated.

引用

页码：163 / 172

页数：10