某难选金矿石浮选工艺试验研究

根据矿石性质及生产实际情况，试验从常规浮选、抑碳浮选和粗精矿再磨浮选三个方面进行了研究。为现场生产改造推荐了试验指标较好的粗精矿再磨浮选工艺。     

低品位细脉型黑白钨矿合理选矿工艺研究

依据矿石的工艺矿物学研究,对低品位细脉型黑、白钨矿石提出了粗粒重选—细粒浮选的工艺,在原矿含WO30.23%、Mo0.018%的情况下,获得了重选钨精矿含钨WO363.54%、钨回收率70.11%,细泥浮选钨精矿含钨WO335.22%、钨回收率10.48%,综合钨精矿含钨WO357.53%、钨回收率80.59%,钼粗精矿含钼2.31%、钼回收率50.54%的结果,钨和钼得到了有效回收。     

Bubble size measurement in three-phase system using photograph technology

A special experiment setup was designed to observe the interaction between bubbles and particle in flotation cell and to analyze the bubble characteristics such as bubble size, distribution and bubble-loading efficiency. Bubbles in water-gas system and three-phase system were measured. The results indicate that with the current setup the bubbles as small as 10μm can be easily distinguished. The average size of the bubbles generated under the given conditions in two-phase system is 410μm at frother concentration of 0. 004%, which is in good correspondence with the results of other works. The effect of frother on bubble size was probed. Increasing frother concentration from 0 to 0. 004% causes a reduction of bubble size from 700 to 400μm. The bubble loading efficiency was reported. The result indicates that the fine particle is more easily entrapped than the coarse particle. Some factors, which have effect on measurement accuracy were discussed. The aeration speed has a significant effect on the accuracy of results, if it surpasses 30 mL/s, and the image becomes unclear due to the entrapment of fine particle. Another factor, which can affect observing results, is the sampling position. At a wrong sampling position, the images become unclear.     

锡铁山铅锌矿原生电位调控浮选研究

运用原生电位调控浮选技术对锡铁山铅锌矿石进行了系统地浮选试验研究,在最佳矿浆电位和pH值条件下,工业试验指标较同期原流程生产指标提高铅精矿品位5·42%、铅回收率1·83%、锌回收率2·39%节约浮选药剂费用2·85元/t矿石,节省电耗4·57kW·h/t矿石。     

铜、铅、锌、铁复杂多金属矿综合回收研究

福建闽北某矿山复杂多金属矿含有铜、铅、锌、铁等多种有价金属矿物,综合利用价值高。通过对该矿石进行选矿试验研究,采用先浮后磁、部分混合浮选的流程,选出铜铅混合精矿、再进行铜、铅分离,然后浮选锌、硫,浮选尾矿经过磁选选铁,得出了铜精矿、铅精矿、锌精矿和铁精矿四种产品。为该矿多金属矿的综合利用提供了可行的方案。     

白云鄂博氧化矿采用反浮--正浮新工艺试验研究

文章介绍白云鄂博氧化矿采用弱精单独反浮、强精反浮-正浮新工艺进行的试验研究情况.试验结果表明,新工艺技术上可行,适应性强,指标好.     

Flotation of quartz using N-(2-aminoethyl)-octadecanamide as collector

1　INTRODUCTIONMuchworkhasbeendoneonthefrothflotationofquartzinRefs .[1 6 ].Bothcationicandanioniccollectorsareemployedinquartzflotation .Ingener al ,thecollectorsarelong chained ,withatleasttencarbonatoms presentinthehydrocarbon portion .Cationiccollectorscommonlyutilizedareamines ,in cluding primaryamines ,secondaryamines ,tertiaryamines,quaternaryammoniumsalts ,sulphoniumsalt,alkylpyridiniumsaltsanddiamine .Foranioniccollec tor ,thecommonlyused ,arecarboxylate ,sulphonate ,alkylsulpha…     

电化学调控法抑硫浮选的研究

进行了电化学法抑硫浮选的研究，探索了化学试剂法和外控电位法对细粒煤浮选脱硫的影响，通过试验证实，在低的矿浆电位下，黄铁矿能被有效抑制，提高了脱硫效率，它是一种经济有效、简单而无污染的抑制黄铁矿的新方法．     

AN EFFICIENT ACTIVATIOR ON FLOTATION OF FINE ANTIMONY OXIDE

Recoveryoffineantimonyoxidewithfrothflotationisoneofthemostdifficultproblems.Theoxidemineralisnotonlytobeslimedeasily,butalsotendstoformcolloidinwatersolution,andtoitshydrolysis,onitssurface,thereexistsSbO,inalkalinesolutionandSbO inacidicsolution.UPtonow,traditionalgravityconcentrationmethodhasbeenuniversallyusedtorecoverantimonyoxide.Nowsomeantimonymillsstilluseshakingtabletechnique,buttherecoveryisonlyabout20%.Inflotationsystem,thecolloidofantimonyoxideiseasilyadheredonthesurfaceofsilicif…     

气浮-V型滤池工艺在电厂废水处理中的应用

采用预沉淀、气浮、V型滤池过滤工艺对台州电厂四期综合废水进行了处理，处理后出水作为发电厂工业循环冷却水的补水。实践表明，该工艺处理效率高，运行稳定，出水水质达到了电厂工业循环冷却水补水水质要求。