Evaluation of a novel depressant PMAA for the separation of fluorite from calcite using NaOl as a collector

• Autorzy: Zhang Xiaofeng , Li Qi , Qin Wenqing , Liu Cheng , Yang Siyuan

Identyfikatory

DOI

10.37190/ppmp/188272

• Języki publikacji: EN

Abstrakty

EN

It is challenging to separate fluorite from calcite due to their same calcium activated sites on their surfaces. The copolymer of maleic and acylic acid (PMAA) was used to inhibit the calcite in the flotation of fluorite. Micro-flotation results exhibited that sodium oleate (NaOl) had a good ability to collect fluorite and calcite in the scope of pH 7-10. The PMAA treatment prior to NaOl selectively depressed the floatability of calcite while allowed the flotation of fluorite, and the artificial minerals mixture plotted that fluorite/calcite could be effectively separated in the presence of PMAA/NaOl. Zeta potential results suggested that NaOl collector was absorbed on the PMAA-conditioned calcite surface but did not adsorb on the PMAA-conditioned fluorite surface. XPS results and calculational chemistry revealed the chemical interaction occurred between calcite surface and PMAA which was attributed to the calcium ions of calcite surface interacting with -COOH group of PMAA.

Słowa kluczowe

EN

fluorite; calcite; NaOl collector; PMAA depressant; flotation separation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2024
• Tom: Vol. 60, iss. 3
• Strony: art. no. 188272
• Opis fizyczny: Bibliogr. 49 poz., rys., tab., wykr.

Twórcy

autor

Zhang Xiaofeng

• School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083, China

autor

Li Qi

• Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA

autor

Qin Wenqing

• School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083, China

autor

Liu Cheng

• School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
• Hubei Key Laboratory of Resources and Eco-Environment Geology, Hubei Geological Bureau, Wuhan, 430034, China

autor

Yang Siyuan

• School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
• Hubei Key Laboratory of Resources and Eco-Environment Geology, Hubei Geological Bureau, Wuhan, 430034, China

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