共搜索到181条信息，每页显示10条信息，共19页。用时：0小时0分0秒253毫秒
组合药剂及磁处理对铜硫矿石浮选性能的影响研究 邱廷省1,方夕辉1,尹艳芬1,罗仙平1 (1.南方冶金学院,江西 赣州 341000) 摘要:本文利用单矿物研究了腐植酸钠,次氯酸钙以及它们的组合和磁场对黄铁矿,黄铜矿浮选行为的影响.利用某矿山的铜硫矿石进行了实验室验证试验.单矿物试验结果表明,腐植酸钠和次氯酸钙的组合抑制剂是黄铁矿的有效抑制剂,在碱性介质中,磁场有利于黄铁矿的抑制.实际矿石试验表明,该组合药剂经磁处理可以实现铜硫低碱有效分离. 关键词:组合抑制剂; 浮选; 黄铁矿; Combined depressant; Flotation; Pyrite; [全文内容正在添加中] ......
铅锌浮选分离有机抑制剂的研究 陈建华1,龙秋容1,王景双1,李玉琼1 (1.广西大学) 摘要:研究了分子结构对有机抑制剂性能的影响,通过铅锌分离纯矿物试验考察了分子结构简单的脂肪烃有机抑制剂,具有明显的官能团效应.当分子结构中存在苯环时,官能团作用不明显.提出硫化矿铅锌分离有机抑制剂分子选择和设计的依据.对选择出来的有机抑制剂进行了研究,证实了新药剂GZT对铅锌分离起着显著的效果. 关键词:脂肪烃; 有机抑制剂; 硫化矿; 铅锌分离; [全文内容正在添加中] ......
SURFACE CHEMICAL CHARACTERISTICS AND FLOATION SEPARATION OF WOLLASTONITE AND GARNET方和平,徐晓军,罗亚田摘 要:<正>In order to nealize the efficient floatation separation ofgarnet and wollastonite,the authors studied the surface chemical charac-teristics and various floatation behaviour of the two minerals,developedacidic combination depressant FD1......
FLOTATION SEPARATION OF WOLLASTONITE FROM DIOPSIDE袁继祖,曹明礼,袁楚雄摘 要:<正>The floatabilities of single mineral samples of wollas-tonite and diopside have been studied with addition, of a cationic collector,dodecyoamine hydrochloride (DDA·HCl) , and,modifiers. A mixture oftwo minerals was successfully separated,when DDA·HCl and tannicacid (as depressant......
monoclinic pyrrhotite using food-grade guar gum(FGG) as a depressant was studied through flotation tests, kinetic studies, dynamic potential measurements, adsorption experiments, and infrared spectral analyses. The microflotation results showed that the flotation separation of chalcopyrite from monoclinic pyrrhotite could not be realized by adding mixed aerofloat(CSU11) alone. The depressant FGG......
of reactions between ACMC with Cu2+ and ACMCwith Hg2+,the separation of cinnabar from stibnite is successfully realizedusing ACMC as depressant and CuSO4 as activator.关键词:......
铜铅分离有机抑制剂FCLS的研究 孙伟1,胡岳华1,刘润清1 (1.中南大学资源加工与生物工程学院,湖南,长沙,410083) 摘要:研究了不同pH值和矿浆电位下有机抑制剂FCLS对黄铜矿和方铅矿的抑制作用.结果表明,未添加FCLS时,方铅矿和黄铜矿都具有良好的可浮性.FCLS存在时,黄铜矿的浮选回收率略有降低,方铅矿受到强烈的抑制.随着pH值增大,矿浆电位逐渐降低,矿浆电位对这两种矿物浮选回收率几乎没有影响.通过红外光谱研究了FCLS与矿物的作用机理,结果表明,FCLS在方铅矿表面发生了强烈的吸附而在黄铜矿表面发生了微弱的吸附. 关键词:浮选; 铜铅分离; 有机抑制剂; FCLS; ......
一种新型有机抑制剂对铁闪锌矿与毒砂浮选分离的影响研究 胡岳华1,熊道陵1,覃文庆1 (1.中南大学,资源加工与生物工程学院,湖南,长沙,410083;2.江西理工大学,江西,赣州,341000) 摘要:考察了铁闪锌矿和毒砂的浮选行为以及Cu2+和有机抑制剂PALA对它们可浮性的影响.结果表明,以丁黄药作捕收剂,2#油为起泡剂,铁闪锌矿和毒砂具有相似的可浮性.硫酸铜可大大改善铁闪锌矿的可浮性,而Cu2+对毒砂的活化作用较小.PALA对铁闪锌矿和毒砂在不同矿浆pH值下都有一定程度的抑制能力,PALA对毒砂的抑制能力大于对铁闪锌矿的抑制能力.Cu2+和PALA的共同作用能使铁闪锌矿和毒砂得到有......
December 2011; accepted 26 November 2012 Abstract: Pseudo glycolythiourea acid (PGA) was synthesized and used as depressant for flotation separation of Cu and Mo. The results indicate that a low amount... by 2% when Na2S was used as depressant. Measurement on adsorption of PGA on the mineral surface indicates that PGA and xanthate were adsorbed on mineral surface by competition, and PGA was adsorbed......
in different forms and the recovery of scheelite using sodium oleate as collector declines successively from SHAP,sodium silicate,to oxalic acid.Moreover,it is found that the performance of depressant......
