脱除锌浸出液中残留有机胺的试验研究
|
摘要
针对目前氧化锌矿酸浸液中残留有机胺含量过高的问题,采用有机胺标准溶液和云南某地氧化锌精矿浸出液为原料,溶液中总有机碳(TOC)值为脱除效果表征,采用吸附法、树脂交换两种方法进行了脱除氧化锌精矿浸出液中残留有机胺的实验研究,重点考察了温度、时间、试剂用量工艺参数对脱除残留有机胺的影响。研究结果表明:活性炭吸附法及树脂交换法脱除有机胺溶液时,这两种方法脱除后,溶液中TOC<10 mg·L~(-1),均满足电积前溶液中TOC<50 mg·L~(-1)的要求,但在锌浸出液中进行脱除时,树脂交换法效果一般,活性炭吸附法更适用于锌浸出液体系脱除有机胺。通过实验研究,确定最佳吸附条件为吸附温度45℃,吸附时间2 h,吸附剂活性炭用量6 g·L~(-1),在此条件下,溶液中残留TOC为17 mg·L~(-1),脱除率达到83%,同时Zn~(2+)损失率<5%,达到了脱除锌浸出液中残留有机胺的要求。
In order to solve the problem of residue organic amine with higher content in acid leaching solution of zinc oxide ore,the organic amine standard solution and the leaching solution of zinc oxide concentrate in Yunnan province were used as raw material,and the total organic carbon( TOC) value in the solution was used as the removal effect characterization,the adsorption method and resin exchange were investigated for removing residual organic amine in the leaching solution of zinc oxide concentrate,the influences of process parameters,such as temperature,time,and reagent dosage,on removal rate were mainly studied. The test results showed that when removing the organic amine standard solution with adsorption method and resin exchange method,the TOC of solution after the removal was under 10 mg·L~(-1),which satisfied the requirement of TOC that was under 50 mg·L~(-1)in the solution before the electrodeposition,but for the removal in zinc leaching solution,the resin exchange method was not that efficient,and the adsorption method was more suitable for the removal of organic amine in zinc leaching solution. The optimum adsorption conditions were adsorption temperature of 45 ℃,adsorption time of 2 h,adsorbent dosage of activated carbon of 6 g·L~(-1). Under this condition,the residual TOC in the solution was 17 mg·L~(-1),and removal rate was 83%,at the same time the loss rate of Zn~(2 +)was under 5%,which achieved the effect of removal of residual organic amine in zinc leaching solution.
In order to solve the problem of residue organic amine with higher content in acid leaching solution of zinc oxide ore,the organic amine standard solution and the leaching solution of zinc oxide concentrate in Yunnan province were used as raw material,and the total organic carbon( TOC) value in the solution was used as the removal effect characterization,the adsorption method and resin exchange were investigated for removing residual organic amine in the leaching solution of zinc oxide concentrate,the influences of process parameters,such as temperature,time,and reagent dosage,on removal rate were mainly studied. The test results showed that when removing the organic amine standard solution with adsorption method and resin exchange method,the TOC of solution after the removal was under 10 mg·L~(-1),which satisfied the requirement of TOC that was under 50 mg·L~(-1)in the solution before the electrodeposition,but for the removal in zinc leaching solution,the resin exchange method was not that efficient,and the adsorption method was more suitable for the removal of organic amine in zinc leaching solution. The optimum adsorption conditions were adsorption temperature of 45 ℃,adsorption time of 2 h,adsorbent dosage of activated carbon of 6 g·L~(-1). Under this condition,the residual TOC in the solution was 17 mg·L~(-1),and removal rate was 83%,at the same time the loss rate of Zn~(2 +)was under 5%,which achieved the effect of removal of residual organic amine in zinc leaching solution.
引文
[1]Qin W Q,Tang S H,Li C.Kinetics of sulfuric acid leaching of high silica low-grade zinc oxide ore[J].Mining and Metallurgical Engineering,2008,28(1):62.(覃文庆,唐双华,厉超.高硅低品位氧化锌矿的酸浸动力学[J].矿冶工程,2008,28(1):62.)
[2]Zhao Y C,Robert Standforth.Production of Zn powder by alkalinetreatment of smithsonite Zn-Pb ores[J].Hydrometallurgy,2000,56:237.
[3]Chen A L,Zhao Z W,Jia X J,Long S,Huo G S,Li H G.Comprehensive utilization status and expectation of zinc oxide ores[J].Mining and Metallurgical Engineering,2008,28(6):62.(陈爱良,赵中伟,贾希俊,龙双,霍广生,李洪桂.氧化锌矿综合利用现状与展望[J].矿冶工程,2008,28(6):62.)
[4]Tang S H,Qin W Q,He M F,Zhang Y S,Chen Y P.Flotation separation and sulfuric acid leaching of zinc oxide ore[J].Hunan Nonferrous Metals,2007,23(3):5.(唐双华,覃文庆,何名飞,张雁生,陈玉平.氧化锌矿硫化-胺法浮选及浸出研究[J].湖南有色金属,2007,23(3):5.)
[5]Wang J M,Cao H Y,Chen S C,Xu Y,Zhang D K.Recovery of Ge/Ga/in from replacement slag in pressure oxidation leaching process of zinc sulfide concentrate[J].Chinese Journal of Rare Metals,2014,38(3):471.(王继民,曹洪杨,陈少纯,徐毅,张登凯.氧压酸浸炼锌流程中置换渣提取锗镓铟[J].稀有金属,2014,38(3):471.)
[6]Xu B,Yang J K,Zhong H,Jiang T.Research onleaching process of high silica zinc oxide ore[J].Journal of Kunming University of Science and Technology(Science and Technology),2010,35(5):10.(徐斌,杨俊奎,钟宏,姜涛.高硅氧化锌矿浸出工艺的研究[J].昆明理工大学学报(理工版),2010,35(5):10.)
[7]Wang W Z,Li X J,Chen L P.Process mineralogy research on a copper-lead-zinc polymetallic sulphide ore from Liaoning[J].Metal Mine,2014,(2):83(王伟之,李学军,陈丽平.辽宁某铜铅锌多金属硫化矿工艺矿物学研究[J].金属矿山,2014,(2):83.)
[8]Xie M Q,Chen Z F,Feng J,Su W Q.Hydrometallurgical extraction of zinc from zinc oxide ore—a study[J].Mining and Metallurgical Engineering,2004,24(1):67.(谢美求,陈志飞,冯剑,苏文强.氧化锌矿湿法浸出提锌工艺研究[J].矿冶工程,2004,24(1):67.)
[9]Yang D J,Xie Gang,Jia Y Z,Yang D M,Peng J R.Study on heap leaching of low-grade zinc oxide ore[J].Chinese Journal of Process Engineering,2006,6(1):59.(杨大锦,谢刚,贾云芝,杨德明,彭建蓉.低品位氧化锌矿堆浸实验研究[J].过程工程学报,2006,6(1):59.)
[10]Fang X X,Peng J H,Zhang L B,Zhang S M,Fan X A,Guo S H,Qin W F.Ultrasonic intensified leaching of zinc oxide concentrate in oxalic acid solution[J].Nonferrous Metals,2003,55(1):51.(范兴祥,彭金辉,张利波,张世敏,樊希安,郭胜惠,秦文峰.超声波强化草酸浸出氧化锌精矿[J].有色金属,2003,55(1):51.)
[11]Ou L M,Wan L,Ye J S,Feng Q M.Experimental research on removing oleic acid from lixivium of zinc oxide[J].Nonferrous Metals(Mineral Processing Section),2012,(1):14.(欧乐明,万丽,叶家笋,冯其明.氧化锌精矿浸出液中脂肪酸有机物脱除的试验研究[J].有色金属(选矿部分),2012,(1):14.)
[12]Sun C Y,Zhang L B,Luo Y G,Liu B G,Xia H Y.Analysis on the harm and treatment approach of the organic compounds in the process of zinc electro-winning[J].Technological Development of Enterprise,2010,29(21):66.(孙成余,张利波,罗永光,刘秉国,夏洪应.锌电积过程中有机物的危害现状及处理途径分析[J].企业技术开发,2010,29(21):66.)
[13]Xiong C X.Study on effects of organic substance on zinc electrowinning[J].Yunnan Metallurgy,2009,38(S):78.(熊从兴.有机物对锌电解影响的研究及工业生产[J].云南冶金,2009,38(S):78.)
[14]Ma L M.Influence of organic substance on electro deposited zinc[J].Hunan Nonferrous Metals,2006,22(5):30.(马立明.论有机物对锌电积的影响[J].湖南有色金属,2006,22(5):30.)
[15]Editorial Board of Leaching Technology.Leaching Technology[M].Beijing:Atomic Energy Press,1994.511.(浸矿技术编委会.浸矿技术[M].北京:原子能出版社,1994.511.)
[16]Wang Z X.Application of a new chelating-agent collector on beneficiation of a lead-zinc oxide ore in Yunnan[J].Metal Mine,2014,(7):89.(王祖旭.用新型螯合捕收剂分选云南某氧化铅锌矿石[J].金属矿山,2014,(7):89.)
[17]Bodas M G.Hydrometallurgical treatment of zinc silicate ore from Thailand[J].Hydrometallurgy,1996,40:37.
[18]Wei Z C,Liu Y,Zhang W S.Current status and progress of direct leaching technology of zinc oxide ore in China[J].Mining Research and Development,2011,31(1):40.(魏志聪,刘洋,张文彬.我国氧化锌矿直接浸出提锌技术研究现状及进展[J].矿业研究与开发,2011,31(1):40.)
[2]Zhao Y C,Robert Standforth.Production of Zn powder by alkalinetreatment of smithsonite Zn-Pb ores[J].Hydrometallurgy,2000,56:237.
[3]Chen A L,Zhao Z W,Jia X J,Long S,Huo G S,Li H G.Comprehensive utilization status and expectation of zinc oxide ores[J].Mining and Metallurgical Engineering,2008,28(6):62.(陈爱良,赵中伟,贾希俊,龙双,霍广生,李洪桂.氧化锌矿综合利用现状与展望[J].矿冶工程,2008,28(6):62.)
[4]Tang S H,Qin W Q,He M F,Zhang Y S,Chen Y P.Flotation separation and sulfuric acid leaching of zinc oxide ore[J].Hunan Nonferrous Metals,2007,23(3):5.(唐双华,覃文庆,何名飞,张雁生,陈玉平.氧化锌矿硫化-胺法浮选及浸出研究[J].湖南有色金属,2007,23(3):5.)
[5]Wang J M,Cao H Y,Chen S C,Xu Y,Zhang D K.Recovery of Ge/Ga/in from replacement slag in pressure oxidation leaching process of zinc sulfide concentrate[J].Chinese Journal of Rare Metals,2014,38(3):471.(王继民,曹洪杨,陈少纯,徐毅,张登凯.氧压酸浸炼锌流程中置换渣提取锗镓铟[J].稀有金属,2014,38(3):471.)
[6]Xu B,Yang J K,Zhong H,Jiang T.Research onleaching process of high silica zinc oxide ore[J].Journal of Kunming University of Science and Technology(Science and Technology),2010,35(5):10.(徐斌,杨俊奎,钟宏,姜涛.高硅氧化锌矿浸出工艺的研究[J].昆明理工大学学报(理工版),2010,35(5):10.)
[7]Wang W Z,Li X J,Chen L P.Process mineralogy research on a copper-lead-zinc polymetallic sulphide ore from Liaoning[J].Metal Mine,2014,(2):83(王伟之,李学军,陈丽平.辽宁某铜铅锌多金属硫化矿工艺矿物学研究[J].金属矿山,2014,(2):83.)
[8]Xie M Q,Chen Z F,Feng J,Su W Q.Hydrometallurgical extraction of zinc from zinc oxide ore—a study[J].Mining and Metallurgical Engineering,2004,24(1):67.(谢美求,陈志飞,冯剑,苏文强.氧化锌矿湿法浸出提锌工艺研究[J].矿冶工程,2004,24(1):67.)
[9]Yang D J,Xie Gang,Jia Y Z,Yang D M,Peng J R.Study on heap leaching of low-grade zinc oxide ore[J].Chinese Journal of Process Engineering,2006,6(1):59.(杨大锦,谢刚,贾云芝,杨德明,彭建蓉.低品位氧化锌矿堆浸实验研究[J].过程工程学报,2006,6(1):59.)
[10]Fang X X,Peng J H,Zhang L B,Zhang S M,Fan X A,Guo S H,Qin W F.Ultrasonic intensified leaching of zinc oxide concentrate in oxalic acid solution[J].Nonferrous Metals,2003,55(1):51.(范兴祥,彭金辉,张利波,张世敏,樊希安,郭胜惠,秦文峰.超声波强化草酸浸出氧化锌精矿[J].有色金属,2003,55(1):51.)
[11]Ou L M,Wan L,Ye J S,Feng Q M.Experimental research on removing oleic acid from lixivium of zinc oxide[J].Nonferrous Metals(Mineral Processing Section),2012,(1):14.(欧乐明,万丽,叶家笋,冯其明.氧化锌精矿浸出液中脂肪酸有机物脱除的试验研究[J].有色金属(选矿部分),2012,(1):14.)
[12]Sun C Y,Zhang L B,Luo Y G,Liu B G,Xia H Y.Analysis on the harm and treatment approach of the organic compounds in the process of zinc electro-winning[J].Technological Development of Enterprise,2010,29(21):66.(孙成余,张利波,罗永光,刘秉国,夏洪应.锌电积过程中有机物的危害现状及处理途径分析[J].企业技术开发,2010,29(21):66.)
[13]Xiong C X.Study on effects of organic substance on zinc electrowinning[J].Yunnan Metallurgy,2009,38(S):78.(熊从兴.有机物对锌电解影响的研究及工业生产[J].云南冶金,2009,38(S):78.)
[14]Ma L M.Influence of organic substance on electro deposited zinc[J].Hunan Nonferrous Metals,2006,22(5):30.(马立明.论有机物对锌电积的影响[J].湖南有色金属,2006,22(5):30.)
[15]Editorial Board of Leaching Technology.Leaching Technology[M].Beijing:Atomic Energy Press,1994.511.(浸矿技术编委会.浸矿技术[M].北京:原子能出版社,1994.511.)
[16]Wang Z X.Application of a new chelating-agent collector on beneficiation of a lead-zinc oxide ore in Yunnan[J].Metal Mine,2014,(7):89.(王祖旭.用新型螯合捕收剂分选云南某氧化铅锌矿石[J].金属矿山,2014,(7):89.)
[17]Bodas M G.Hydrometallurgical treatment of zinc silicate ore from Thailand[J].Hydrometallurgy,1996,40:37.
[18]Wei Z C,Liu Y,Zhang W S.Current status and progress of direct leaching technology of zinc oxide ore in China[J].Mining Research and Development,2011,31(1):40.(魏志聪,刘洋,张文彬.我国氧化锌矿直接浸出提锌技术研究现状及进展[J].矿业研究与开发,2011,31(1):40.)
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |