无机磷酸盐对萤石和方解石浮选行为的影响研究  

Study on Effect of Inorganic Phosphate on Flotation Behavior of Fluorite and Calcite

作　　者：蔡钦 覃文庆[1] 朱海玲[1] 陈臣[1] 邓海波[1] 任海洋[1] 

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙

出　　处：《矿山工程》2017年第3期82-88,共7页Mine Engineering

摘　　要：通过单矿物浮选试验考察了六偏磷酸钠、焦磷酸钠以及三聚磷酸钠对萤石和方解石浮选行为的影响,结果表明使用改性脂肪酸DW-1作捕收剂时,三种磷酸盐对萤石和方解石均表现出一定的抑制作用,其抑制能力按照六偏磷酸钠 >三聚磷酸钠 >焦磷酸钠的顺序递减,其中六偏磷酸钠的抑制作用没有选择性,焦磷酸钠和三聚磷酸钠在pH >9时对方解石表现出较好的选择性抑制作用,而对萤石的可浮性影响较小,有望实现萤石和方解石的浮选分离。The effect of sodium hexametaphosphate, sodium pyrophosphate and sodium tripolyphosphate on flotation behavior of fluorite and calcite was investigated through single mineral flotation experiments. The results show that when the modified fatty acid DW-1 is used as the collector, the three phosphates present a certain inhibition to fluorite and calcite, and the inhibition ability decreases in the order of sodium hexametaphosphate >sodium tripolyphosphate >sodium pyrophosphate. The inhibition of sodium hexametaphosphate has no selectivity;sodium pyrophosphate and sodium tripolyphosphate show better selective inhibition to calcite at pH >9, while have little influence on floatability of fluorite, so it is expected to achieve their flotation separation.

关 键 词：萤石 方解石 浮选分离 无机磷酸盐 抑制 

分 类 号：TD9[矿业工程—选矿]