罗河铁矿石浮选药剂制度优化

罗河铁矿在以往选硫试验中采用硅酸钠作为分散剂,实际生产中不但加大了选硫药剂投入,还使得最终尾矿难以沉降。为此,进行了罗河铁矿石浮选药剂制度优化研究及验证设计浮选药剂制度试验与优化浮选药剂制度试验的对比。最终在原矿有效硫含量为6.0%的前提下,验证设计浮选药剂制度试验获得了有效硫含量为39.27%、有效硫回收率为70.12%的硫精矿;通过对浮选药剂制度优化后,不加硅酸钠获得了有效硫含量为35.05%、有效硫回收率为77.87%的硫精矿。试验结果表明:加硅酸钠与不加硅酸钠对选别指标的影响不大,故可取消此药剂,达到了节能降耗的目的,经济效益显著。

Optimization of Flotation Reagent System of Luohe Iron Ore

Aiming at sodium silicate was adopted as the dispersant in the past sulfur dressing test at Luohe iron ore,sulfur dressing reagent investment would increase in future practical production,also made final tailings hard to settlement,so,Luohe iron ore flotation reagent system optimization research was done.Comparison was done between verify designed flotation reagent system test and optimize flotation reagent system test.Finally,on the premise of available sulfur content of raw ore was 6.0%,sulfur concentrate of available sulfur content 39.27% and recovery rate 70.12% were obtained in verify designed flotation reagent system test;Through flotation reagent system optimization,sulfur concentrate of available sulfur content 35.05% and available sulfur recovery rate 77.87% were obtained without sodium silicate.Test results indicates,influence to beneficiation index is little with or without sodium silicate,so this reagent could be cancelled,which achieve the goal of energy saving and the economic benefits is remarkable.