磨矿因素对黄药在硫化矿浮选过程中分布的影响
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摘要
以硫含量差别较大的3种含硫的铁矿石和纯黄铁矿为试样,研究了乙基黄药和丁基黄药在矿石浮选过程中,磨矿细度、磨矿介质及后续的浮选充气对药剂分布的影响。结果表明,采用钢棒介质磨矿,矿石表面的黄药分布率低,不利于黄药在其表面的吸附,而采用瓷球介质磨矿,矿石表面的黄药分布率高,有利于黄药在其表面的吸附;充气有利于矿石吸附黄药,可以提高矿石表面的黄药分布率,但采用瓷球介质磨矿后,充气对矿石吸附黄药的影响较小;磨矿介质对于纯黄铁矿吸附黄药的影响较小。
Using three kinds of sulfur-containing iron ore with different sulfur content and single mineral of pyrite as samples,the effects of grinding fineness,grinding medium and subsequent aeration on the distribution of reagents in the ore flotation process were studied.The results show that grinding with steel rod medium,the distribution rate of xanthate on the surface of ore is low,which is not conducive to the adsorption of xanthate on its surface.When using porcelain ball as grinding medium,the distribution of xanthate on the surface of the ore is high,which is beneficial to the adsorption of xanthate on its surface.Aeration is favorable to the adsorption of xanthate by ore,which can increase the distribution rate of xanthate on the surface of ore.However,after grinding with porcelain ball medium,the effect of aeration on the adsorption of xanthate on ore is small.Grinding medium has little effect on the adsorption of xanthate by single mineral of pyrite.
Using three kinds of sulfur-containing iron ore with different sulfur content and single mineral of pyrite as samples,the effects of grinding fineness,grinding medium and subsequent aeration on the distribution of reagents in the ore flotation process were studied.The results show that grinding with steel rod medium,the distribution rate of xanthate on the surface of ore is low,which is not conducive to the adsorption of xanthate on its surface.When using porcelain ball as grinding medium,the distribution of xanthate on the surface of the ore is high,which is beneficial to the adsorption of xanthate on its surface.Aeration is favorable to the adsorption of xanthate by ore,which can increase the distribution rate of xanthate on the surface of ore.However,after grinding with porcelain ball medium,the effect of aeration on the adsorption of xanthate on ore is small.Grinding medium has little effect on the adsorption of xanthate by single mineral of pyrite.
引文
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[2] PEARSE M J.An overview of the use of chemical reagents in mineral processing[J].Minerals Engineering,2005,18(2):139-149.
[3]袁珊珊.混凝沉淀法处理多金属矿选矿废水研究[D].长沙:中南大学,2013.
[4] DOPSON M,SUNDKVIST J,BORJE Lindstrom E.Toxicity of metal extraction and flotation chemicals to Sulfolobus metallicus and chalcopyrite bioleaching[J].Hydrometallurgy,2006,81(3):205-213.
[5]李洪帅,刘殿文,宋凯伟,等.选矿废水对浮选的影响[J].矿冶,2012,21(2):94-96.LI Hongshuai,LIU Dianwen,SONG Kaiwei,et al.Impact of mineral processing wastewater on flotation process[J].Mining&Metallurgy,2012,21(2):94-96.
[6] LIU W,MORAN C J,VINK S.A review of the effect of water quality on flotation[J].Minerals Engineering,2013,53:91-100.
[7] CHEN J,LIU R,SUN W,et al.Effect of mineral processing wastewater on flotation of sulfide minerals[J].Transactions of Nonferrous Metals Society of China,2009,19(2):454-457.
[8]刘玉林.磨矿对黄铁矿和黄铜矿浮选行为的影响研究[D].长沙:中南大学,2010.
[9]宋振国,CORIN K,WIESE J G,等.磨矿介质材质与捕收剂添加方式对某铜镍硫化矿浮选的影响[J].矿产保护与利用,2017(6):36-40.SONG Zhenguo,CORIN K,WIESE J G,et al.Effect of grinding medium type and collector addition site on flotation of a Cu-Ni sulphide ore[J].Conservation and Utilization of Mineral Resources,2017(6):36-40.
[10]马英强,黄发兰,李晓慢.不同磨矿方式对硫化矿浮选影响的研究现状[J].现代矿业,2015,31(3):56-59.MA Yingqiang,HUANG Falan,LI Xiaoman.Research status of influence of different grinding methods on flotation of sulfide ore[J].Modern Mining,2015,31(3):56-59.
[11]宋磊,何发钰,孙传尧,等.磨矿介质对黄铁矿表面性质和浮选行为的影响[J].有色金属:选矿部分,2007(1):30-34.SONG Lei,HE Fayu,SUN Chuanyao,et al.Effects of grinding media on surface properties and flotation behavior of pyrite[J].Nonferrous Metals Mineral:Processing Section,2007(1):30-34.
[12]何发钰.磨矿环境对硫化矿物浮选的影响[D].沈阳:东北大学,2006.
[13] PENG Y,GRANO S,FORNASIERO D,et al.Control of grinding conditions in the flotation of chalcopyrite and its separation from pyrite[J].International Journal of Mineral Processing,2003,69(1):87-100.
[14]鄢功军,徐承焱,孙体昌,等.黄药与硫化矿作用对其降解规律的影响研究[J].有色金属:选矿部分,2017(2):86-90.YAN Gongjun,XU Chengyan,SUN Tichang,et al.Effect of sulfide minerals on degradation of alkyl xanthate[J].Nonferrous Metals Mineral:Processing Section,2017(2):86-90.
[15]鄢功军.黄药在浮选过程中分布的影响因素及其降解规律研究[D].北京:北京科技大学,2017.