[an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]
[an error occurred while processing this directive]

Gold Science and Technology >

2019 , Vol. 27 >Issue 5: 777 - 783

DOI: https://doi.org/10.11872/j.issn.1005-2518.2019.05.777

Mining Technology and Mine Management

Study on Comprehensive Recovery of Calcium，Magnesium，Copper and Gold from High-alkaline Copper-bearing Gold Ore in Sichuan Province

  • Kaibin FU , 1, 2 ,
  • Qiuhong ZHONG 1, 2 ,
  • Yu MAO 1, 2 ,
  • Lei WANG 1, 2 ,
  • Deliang TENG 1, 2 ,
  • Taotao ZHAO 3
Expand
  • 1. Key Laboratory of Solid Waste Treatment and Resource Recycle，Ministry of Education，Mianyang 621010，Sichuan, China
  • 2. School of Environment and Resource，Southwest University of Science and Technology，Mianyang 621010，Sichuan，China
  • 3. Sichuan Hailan Qingtian Environmental Protection Technology Co. , Ltd. ，Chengdu 610045，Sichuan，China

Received date: 2019-04-07

  Revised date: 2019-05-27

  Online published: 2019-11-07

Fold

Highlights

The high alkaline copper-bearing gold ore usually have the following three characteristics：（1） The alkaline gangue has a high content，and often contains a large amount of carbonate minerals，such as calcite and dolomite.（2） The copper content is relatively high，and the copper content in the ore is usually above 1.0%.（3） The high alkaline copper-bearing gold ore is often mixed with both sulfide and oxidized minerals，as well as arsenic and other toxic and harmful elements.It is difficult to obtain the ideal separation index by conventional mineral processing methods. However，with the gradual decreasement of easily-recover gold ores，more and more attention has been paid to the study on the metallurgical technology of refractory gold ores.The technological process，Roasting of raw ore to remove carbon and arsenic-Rapid leached by ammonium chloride of calcium-Ammonium sulfate leaching of magnesium and copper-Non-cyanide leaching （swust-1） of gold，was used to recover valuable elements from ore，and to increase recovery rate of “three high” gold mine，the gold ores characterize high-carbonate，high-arsenic and high-copper.The result shows that leaching rate of calcium，magnesium and copper reached 82.88%，20.12% and 16.75%，recpectively，when calcination temperature is 950 ℃，calcination time is 2 h，pulp density is 30%，-0.074 mm grain size content is 70%，ammonium chloride concentration is 3.0 mol/L，and leaching time is 10 min. After “two-stage” leaching，the leaching rate of magnesium and copper ion is more higher than unroasted ore，under the condition of ammonium sulfate concentration of 2.5 mol/L，pulp concentration of 30%，and leaching temperature of 50 ℃. After “roasting-leaching of calcium，magnesium and copper”，the leaching rate of gold was also greatly improved.Through the above process，the total leaching rates of calcium，magnesium，copper and gold can reach 96.18%，95.16%，80.51% and 78.86%，respectively，which improve the leaching rate and comprehensive economic value of valuable elements in high-alkaline copper-bearing gold deposits，and has the potential of popularization and application.

Cite this article

Kaibin FU , Qiuhong ZHONG , Yu MAO , Lei WANG , Deliang TENG , Taotao ZHAO . Study on Comprehensive Recovery of Calcium，Magnesium，Copper and Gold from High-alkaline Copper-bearing Gold Ore in Sichuan Province[J]. Gold Science and Technology, 2019 , 27(5) : 777 -783 . DOI: 10.11872/j.issn.1005-2518.2019.05.777

[an error occurred while processing this directive]

References

Publishing order | Descend order by publishing year | Descend order by cited within
1
殷书岩，赵鹏飞，李少龙，等 .难处理金矿预处理技术的选择[J].中国有色冶金，2018，47（2）：30-34.

Yin Shuyan ， Zhao Pengfei ， Li Shaolong ，et al .Selection of pretreatment technology of refractory gold ore[J].China Nonferrous Metallurgy，2018，47 （2）：30-34.

2
Shin D ， Ahn J ， Lee J .Kinetic study of copper leaching from chalcopyrite concentrate in alkaline glycine solution [J].Hydrometallurgy，2019，183：71-78.

3
Fu X J ， Chu M S ， Gao L H ，et al .Stepwise recovery of magnesium from low-grade ludwigite ore based on innovative and clean technological route[J].Transactions of Nonferrous Metals Society of China，2018，28（11）：2383-2394.

4
龚明辉，高起方，尹福兴，等 .云南某金矿选矿工艺试验研究[J].黄金，2019，40（1）：54-58.

Gong Minghui ， Gao Qifang ， Yin Fuxing ，et al .Experimental research on the mineral processing process in a gold mine of Yunnan[J].Gold，2019，40（1）：54-58.

5
任瑞晨，赵靖雨，陈康，等 .铵盐浸出碳酸钙试验研究[J].非金属矿，2017，40（6）：42 - 44.

Ren Ruichen ， Zhao Jingyu ， Chen Kang ，et al .Study of ammonium salt leaching calcium carbonate test[J].Non-Metallic Mines，2017，40（6）：42-44.

6
黄春晖，徐嘉欣，颜粉鸽 .（NH4）2SO4浸出法由白云石制备纳米氧化镁[J].盐科学与化工，2017，46（4）：6-10.

Huang Chunhui ， Xu Jiaxin ， Yan Fenge .Synthesis of nano magnesium oxide from dolomite via ammonium sulfate leaching[J].Journal of Salt Science and Chemical Industry，2017，46（4）：6-10.

7
毛莹博，方建军，文娅，等 .不同氨—铵浸出体系对氧化铜矿铜浸出率影响规律的研究[J].矿冶，2012，21（1）：42-45.

Mao Yingbo ， Fang Jianjun ， Wen Ya ，et al .Analysis on influence regularity of the ammonia-ammonium leaching system on leaching rate of copper[J].Mining and Metallurgy，2012，21（1）：42-45.

8
纪翠翠 .高碱性氧化铜矿石的氨浸—萃取试验研究[D].昆明：昆明理工大学，2009.

Ji Cuicui .Study on “Ammonia Leaching—Solvent Extraction” of High-alkaline Copper Oxide Ore[D].Kunming：Kunming University of Science and Technology，2009.

9
Yin W Z ， Sun Q Y ， Li D ，et al .Mechanism and application on sulphidizing flotation of copper oxide with combined collectors[J].Transactions of Nonferrous Metals Society of China，2019，29（1）：178-185.

10
Jeldres R I ， Uribe L ， Cisternas L A ，et al .The effect of clay minerals on the process of flotation of copper ores ——A critical review[J].Applied Clay Science，2019，170：57-69.

11
Yin S H ， Wang L M ， Wu A X ，et al .Enhancement of copper recovery by acid leaching of high-mud copper oxides：A case study at Yangla copper mine，China[J].Journal of Cleaner Production，2018，202：321-331.

12
Liu W F ， Fu X X ， Yang T Z ，et al .Oxidation leaching of copper smelting dust by controlling potential[J].Transactions of Nonferrous Metals Society of China，2018，28（9）：1854-1861.

13
刘金枝，缪秀秀，杨保华，等 .铜矿浸出试验研究及影响因素分析[J].矿冶工程，2013，33（5）：95-97.

Liu Jinzhi ， Miao Xiuxiu ， Yang Baohua ，et al .Copper leaching test and its influencing factors analysis[J].Mining and Metallurgical Engineering，2013，33（5）：95-97.

14
冯亚平，王洪刚，刘三平 .矿石粒度对镍钴浸出率的影响研究[J].中国资源综合利用，2015，33（9）：20-22.

Feng Yaping ， Wang Honggang ， Liu Sanping .Investigation on the effect of particle size of ore on the leaching rate[J].China Resources Comprehensive Utilization，2015，33（9）：20-22.

15
王琛，刘润清，孙伟，等 .高泥氧化锌矿脱泥/不脱泥浮选对矿浆流变性能的影响[J].矿冶工程，2018，38（5）：44-50.

Wang Chen ， Liu Runqing ， Sun Wei ，et al .Effect of desliming/non-desliming flotation on pulp rheological properties of highly-mudded zinc oxide ore[J].Mining and Metallurgical Engineering，2018，38（5）：44-50.

16
Chen S ， Yang Y K ， Liu C Q ，et al .Column bioleaching copper and its kinetics of waste printed circuit boards （WPCBs） by Acidithiobacillus ferrooxidans[J].Chemosphere，2015，141：162-168

17
Yang Y K ， Chen S ， Li S C ，et al .Bioleaching waste printed circuit boards by Acidithiobacillus ferrooxidans and its kinetics aspect[J].Journal of Biotechnology，2014，173：24-30.

18
Fu K B ， Ning Y ， Chen S ，et al .Bioleaching of different copper sulphide minerals and their physicochemical properties dependence[J].Mineral Processing and Extractive Metallurgy Imm Transactions，2016，125（1）：1-4.

19
傅开彬，董发勤，谌书，等 .四川某含砷难处理金精矿细菌氧化—无氰提金试验[J].金属矿山，2015，44（1）：67-71.

Fu Kaibin ， Dong Faqing ， Chen Shu ，et al .Biooxidation-Cyanide-free gold leaching of a refractory gold ore containing arsenic in Sichuan Province[J].Metal Mine，2015，44（1）：67-71.

20
Wang Q ， Hu X Z ， Zi F T ，et al .Extraction of gold from refractory gold ore using bromate and ferric chloride solution[J].Minerals Engineering，2019，136：89-98.

Options
Outlines

/

〈 〉

[an error occurred while processing this directive]