重选—浮选工艺回收云南某硫化铅尾矿中的微细粒锡石
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摘要
采用重选—浮选联合工艺对云南某硫化铅尾矿中的微细粒级锡石进行回收研究。该矿泥化严重,首先采用离心选矿机脱除微细粒矿泥,以消除矿泥对后续锡浮选的不利影响,并能增加浮选给矿锡品位,离心选矿可以使锡品位富集5倍以上,作业回收率达到87.4%。离心精矿进行反浮选脱硫,脱硫精矿采用碳酸钠为pH值调整剂和分散剂,BY-9和P86为组合捕收剂,CMC为脉石抑制剂进行微细粒锡石正浮选。最终闭路试验得到锡精矿品位18.5%、回收率65%的指标。研究结果表明利用离心选矿机进行脱泥富集,采用重选—浮选联合工艺对微细粒锡石具有较好的选别效果。
The recovery of fine-grained cassiterite from a sulfide lead tailing in Yunnan province was studied using the method of gravity and floating separation.This ore is seriously muddied.Firstly,the centrifugal concentrator is used to remove the fine-grained slime.Desliming eliminates the adverse effects of the slime on the subsequent flotation and increases the milling grade of tin ore.Centrifugal beneficiation can enrich the tin grade more than 5 times,and the operating recovery reaches 87.4%.Centrifugal concentrate is used for reverse flotation desulfurization.Sodium carbonate was used as a pH adjuster and dispersant,BY-9+ P86 was used as a combined collector,and CMC was used as a depressant of gangue minerals to carry out positive flotation of the desulfurized concentrate.At last,the closed-circuit experiment result is that the tin concentrate grade and recovery are 18.5% and 65%,respectively.The results show that the combination of gravity and flotation method has a good effect on the separation of fine cassiterite by centrifugal concentrator.
The recovery of fine-grained cassiterite from a sulfide lead tailing in Yunnan province was studied using the method of gravity and floating separation.This ore is seriously muddied.Firstly,the centrifugal concentrator is used to remove the fine-grained slime.Desliming eliminates the adverse effects of the slime on the subsequent flotation and increases the milling grade of tin ore.Centrifugal beneficiation can enrich the tin grade more than 5 times,and the operating recovery reaches 87.4%.Centrifugal concentrate is used for reverse flotation desulfurization.Sodium carbonate was used as a pH adjuster and dispersant,BY-9+ P86 was used as a combined collector,and CMC was used as a depressant of gangue minerals to carry out positive flotation of the desulfurized concentrate.At last,the closed-circuit experiment result is that the tin concentrate grade and recovery are 18.5% and 65%,respectively.The results show that the combination of gravity and flotation method has a good effect on the separation of fine cassiterite by centrifugal concentrator.
引文
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[13]刘鸣,葛英勇,赵和平,等.云南某高硫锡中矿浮选脱硫试验研究[J].矿冶工程,2017,37(3):47-49.
[14]何名飞,罗朝艳,陈玉平,等.细粒锡石浮选研究[J].矿冶工程,2008,28(4):29-31.
[2]邓春虎,肖骏,祁忠旭.某细粒嵌布铜锌锡多金属矿全浮选试验研究[J].矿冶,2015,24(6):24-29.
[3]刘杰,韩跃新,朱一民,等.细粒锡石选矿技术研究进展及展望[J].金属矿山,2014,460(10):76-81.
[4]谢广元.选矿学[M].徐州:中国矿业大学出版社,2012:252-256.
[5]刘燕.巴里选矿厂细粒级锡石选别新工艺研究与应用[J].云南冶金,2016,45(6):9-13.
[6]WANG PEIPEI,QIN WENQING,REN LIUYI,et al.Solution chemistry and utilization of alkyl hydroxamic acid in flotation of fine cassiterite[J].Transactions of Nonferrous Metals Society of China,2013,23:1789-1796.
[7]REN LIUYI,ZHANG YIMIN,QIN WENQING,et al.Collision and attachment behavior between fine cassiterite particles and H2bubbles[J].Transactions of Nonferrous Metals Society of China,2014,24:520-527.
[8]刘玫华,刘四清,曹烨,等.某低品位锡矿重选抛尾工艺研究[J].矿产保护与利用,2009(3):34-36.
[9]梁溢强,简胜,刘玫华.某浮选尾矿选锡工艺试验研究[J].有色金属(选矿部分),2015(2):44-48.
[10]全柏飞,刘子帅.提高某选矿厂细泥锡回收率的试验研究[J].有色金属(选矿部分),2014(6):51-54.
[11]王键敏.SLon-2400(1600)离心选矿机选别微细粒贫赤铁矿的应用[J].有色金属(选矿部分),2011(增刊1):168-170.
[12]钟能.SLon离心选矿机在大吉山钨业细泥选矿中的应用[J].有色金属(选矿部分),2016(2):79-81.
[13]刘鸣,葛英勇,赵和平,等.云南某高硫锡中矿浮选脱硫试验研究[J].矿冶工程,2017,37(3):47-49.
[14]何名飞,罗朝艳,陈玉平,等.细粒锡石浮选研究[J].矿冶工程,2008,28(4):29-31.