Effect of grinding media on the flotation of copper-activated marmatite

• Autorzy: Long Tao , Chen Yao , Shi Juanjuan , Chen Wei , Zhu Yangge , Zhang Chonghui , Bu Xianzhong

Identyfikatory

DOI

10.37190/ppmp19100

• Języki publikacji: EN

Abstrakty

EN

How to avoid the shortage of floatability and non-purpose flotation in marmatite flotation is a big problem. This paper innovatively studies how to reduce these two negative phenomena from the perspective of grinding media. The effects of steel and stainless-steel balls on the flotation performance of copper-activated marmatite were investigated mainly through flotation tests, redox potential measurements, ion concentration tests, and XPS and FT-IR spectrum studies. The flotation results showed that the floatability of copper-activated marmatite remarkably decreased by using the steel ball in the grinding process, but it had a mere influence when stainless-steel medium was used. Redox potential measurements showed that the grinding environment of stainless-steel medium could exhibit a higher oxidizing potential than the steel grinding environment. Results from FTIR, XPS, and ion concentration measurements demonstrated that more ferric ions existed on the copper activated marmatite surface in the steel grinding environment than that in the stainless-steel environment. Ferric ions could further hinder the activation effect of copper ions on marmatite and result in decreased marmatite flotation. This research could potentially explain the mechanism of ferric ions in the grinding process, and it can be utilized to improve the flotation performance of marmatite ore through selecting suitable grinding media in ball mill operations.

Słowa kluczowe

EN

grinding media; copper-activated marmatite; flotation separation; surface property

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2020
• Tom: Vol. 56, iss. 2
• Strony: 229--237
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wz.

Twórcy

autor

Long Tao

• School of Resource Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China

autor

Chen Yao

• School of Resource Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China

autor

Shi Juanjuan

• School of Resource Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China

autor

Chen Wei

• School of Resource Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
• State Key Laboratory of Mineral Processing, BGRIMM Technology Group, Beijing, China

autor

Zhu Yangge

• State Key Laboratory of Mineral Processing, BGRIMM Technology Group, Beijing, China

autor

Zhang Chonghui

• School of Resource Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China

autor

Bu Xianzhong

• School of Resource Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China

Bibliografia

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Uwagi

The work was funded by National Natural Science Foundation of China (Grant No. 51904221), the Open Foundation of State Key Laboratory of Mineral Processing (Grant No. BGRIMM-KJSKL-2020-05), the Project funded by China Postdoctoral Science Foundation (Grant No. 2018M640964 and 2019T120884), the General Project (Youth) of Natural Science Basic Research funded by Shaanxi Science and Technology Department (Grant No. 2019JQ-368 and 2019JQ-545), and the Natural Science Project of Shaanxi Education Department (Grant No. 19JK0465), and the RenCai Technology Fund of Xi’an University of Architecture and Technology (Grant No. RC1820).