Evaluation of ammonium citrate tribasic as a leaching reagent for lead-bearing ore

• Autorzy: Liu Junbo , Li Shimei , Zhao Biao , Deng Jianying , Huang Lingyun , Zhou Yuanyuan , Chen Cong , Liu Quanjun

Identyfikatory

DOI

10.5277/ppmp18183

• Języki publikacji: EN

Abstrakty

EN

In this study, the leaching process of a lead-bearing ore, consisting mainly of cerussite, in an ammonium citrate tribasic medium was investigated. The parameters including temperature, reagent concentration, particle size, and stirring speed were examined. During leaching process, the lead conversion rate increased with an increase in reagent concentration, reaction temperature, and stirring speed, and a decrease in particle size. The results show that about 95% of lead content was extracted from the samples with particle size range of +75-96 μm after 21 min leaching in 1.25 mol/L ammonium citrate tribasic solution at 800 r/min and 40°C. It was found that the leaching reaction followed the shrinking core model. The results indicated that ammonium citrate tribasic could be used as an effective leaching reagent for extracting lead from lead oxide ore.

Słowa kluczowe

EN

lead; cerussite; ammonium citrate tribasic; leaching; kinetics

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 3
• Strony: 689--700
• Opis fizyczny: Bibliogr. 33 poz., rys. kolor.

Twórcy

autor

Liu Junbo

• Kunming University of Science and Technology

autor

Li Shimei

• Kunming University of Science and Technology

autor

Zhao Biao

• University of Toronto, 5 King's College Road, M5S 3G8 Toronto, Canada

autor

Deng Jianying

• Kunming University of Science and Technology

autor

Huang Lingyun

• Kunming University of Science and Technology

autor

Zhou Yuanyuan

• Zhengzhou University of Aeronautics

autor

Chen Cong

• Kunming University of Science and Technology

autor

Liu Quanjun

• Kunming University of Science and Technology

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