电解浮选中气泡性质对细粒萤石回收的影响
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摘要
利用自制电解浮选管对不同粒级萤石进行电解浮选试验,以油酸钠为捕收剂,在确定pH及捕收剂用量的情况下,考察了颗粒粒度、阴极孔径、电流强度对萤石浮选回收率的影响以及气泡的分布情况。结果表明:当阴极孔径一定时,随着电流强度的增大,不同粒级萤石回收率均增大;当电流强度一定时,不同阴极孔径对应的萤石浮选回收率最高时的粒级也不相同。
The electrolytic flotation tests were conducted on different size fractions of fluorite by the homemade electrolytic flotation tube.With sodium oleate as collector,under a fixed collector concentration and pH,the effects of particle size,cathode aperture and current intensity on the fluorite recovery and the distribution of bubbles were investigated.The results show that when cathode aperture is determined,the flotation recovery of fluorite with different particle size increases with greater current intensity.When the current intensity is determined,the different particle size of fluorite has a corresponding cathode aperture,the flotation recovery rate is the highest at present.
The electrolytic flotation tests were conducted on different size fractions of fluorite by the homemade electrolytic flotation tube.With sodium oleate as collector,under a fixed collector concentration and pH,the effects of particle size,cathode aperture and current intensity on the fluorite recovery and the distribution of bubbles were investigated.The results show that when cathode aperture is determined,the flotation recovery of fluorite with different particle size increases with greater current intensity.When the current intensity is determined,the different particle size of fluorite has a corresponding cathode aperture,the flotation recovery rate is the highest at present.
引文
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[13]王淀佐,胡岳华.浮选溶液化学[M].长沙:湖南科学技术出版社,1988:221-224.
[2]卢冀伟,王乃玲,印万忠,等.我国萤石矿选矿进展与展望,中国采选技术十年回顾与展望[M].北京:冶金工业出版社,2012:238-242.
[3]周丽,文书明.细粒矿物浮选分离与技术[J].国外金属矿选矿,2003,(2):11-14.
[4]陈繁忠,李穗忠.电解气浮法技术进展[J].广东化工,1997,(4):60-61.
[5]邱衍卿,李明礼.细粒矿物选矿技术现状[J].西藏科技,2008,(8):26-27.
[6]孙家寿,钱仁俊.电浮选法处理选磷废水的研究[J].武汉化工学院学报,1993,15(4):22-27.
[7]魏杰,周定.采用电浮选法脱除电镀废水中Fe2+,Co2+,Ni 2+的研究[J].环境保护科学,1997,23(6):7-12.
[8]陈金鉴,万晶,施汉昌.电解浮选用于活性污泥固液分离的研究[J].环境科学,2006,27(11):2 333-2 338.
[9]RAJU G B KHANGAONKA P R.Electro-flotation of chalcopyrite[J].International Journal of Mineral Processing,1982,9(2):133-143.
[10]李艳,孙伟,胡岳华.气泡性质对高岭石浮选行为的影响[J].中国有色金属学报,2009,19(8):1 498-1 504.
[11]覃文庆,王佩佩,任浏袆,等.颗粒气泡的匹配关系对细粒锡石浮选的影响[J].中国矿业大学学报,2012,41(3):420-424.
[12]MURUGANANTHAN M,BHASKAR G,PRABHAKAR R S.Removal of sulfide,sulfate and sulfite ions by electrocoagulation[J].Journal of Hazardous Material,2004,109(1/3):37-44.
[13]王淀佐,胡岳华.浮选溶液化学[M].长沙:湖南科学技术出版社,1988:221-224.