组合捕收剂WM-1对东鞍山赤铁矿的捕收性能

Study on the Collecting Performance of Donganshan Hematite with the New Combined Chelation Collector WM-1

将油酸钠与一种自制的螯合捕收剂配成组合捕收剂WM-1,用WM-1对东鞍山赤铁矿进行正浮选试验,并与单一油酸钠进行对比,结果表明,在最优条件下,经1次粗选,WM-1可获得精矿铁品位50.62%,精矿铁回收率85.05%的良好指标,而单一油酸钠的精矿铁品位和精矿铁回收率仅为50.62%和90.22%,并且WM-1具有一定的耐低温性。机理分析显示,WM-1组合捕收剂与赤铁矿之间的吸附包括静电吸附和化学吸附。

This article describes the direct flotation tests under weak alkaline condition with the new combined collector WM-1 of the Sodium oleate and one self-made chelating collector in Donganshan hematite,comparing with the single sodium oleate.The results showed that under the optimal condition,Fe concentrate grading at 50.62% with Fe recovery 85.05% was obtained with WM-1.However,with the single Sodium oleate,Fe concentrate only graded at 50.62% with Fe recovery rate of 90.22%.Moreover,WM-1 have the characteristics of low-temperature,The analysis of mechanism showed that the adsorption between the combined collector WM-1 and hematite includes the electrostatic adsorption and the chemical adsorption.