The effect of a novel depressant on the separation of talc and copper –nickel sulfide ore

• Autorzy: Gu Guohua , Chen Zhixiang , Zhao Kaile , Song Siyu , Li Shuangke , Wang Chongqing

Identyfikatory

DOI

10.5277/ppmp18115

• Języki publikacji: EN

Abstrakty

EN

This paper researched the influence of the polysaccharide polymer sodium alginate (SAG) on the depression of talc at a fixed room temperature about 25 °C through micro flotation and batch flotation experiments, zeta potential and contact angle measurements as well as infrared spectroscopy analysis. The flotation results displayed that the SAG had a significant influence on the flotation of talc but less influence on sulphide flotation. Compared with the depressant carboxymethyl cellulose (CMC) and guar gum, using of the SAG gave the highest copper recovery. It could not only eliminate a talc removal step, but also significantly decrease in the depressant consumption by half at least. Sodium alginate apparently adsorbs on the talc surface and promotes hydrophilization, as revealed by contact angle tests (contact angle decreased from 75 to 33° after treating with SAG). It is demonstrated that the SAG obviously absorbed at the surface of talc but rarely for chalcopyrite through the results of zeta potential measurements and infrared spectroscopy analysis.

Słowa kluczowe

EN

Sodium alginate; talc; copper–nickel sulfide; polysaccharide depressant; flotation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 1
• Strony: 116--127
• Opis fizyczny: Bibliogr. 44 poz., rys., tab.

Twórcy

autor

Gu Guohua

• School of Minerals Processing and Bio-engineering, Central South University, Changsha 410083, Hunan, China

autor

Chen Zhixiang

• School of Minerals Processing and Bio-engineering, Central South University, Changsha 410083, Hunan, China

autor

Zhao Kaile

• School of Minerals Processing and Bio-engineering, Central South University, Changsha 410083, Hunan, China
• Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Chengdu 610041, China

autor

Song Siyu

• School of Minerals Processing and Bio-engineering, Central South University, Changsha 410083, Hunan, China

autor

Li Shuangke

• School of Minerals Processing and Bio-engineering, Central South University, Changsha 410083, Hunan, China

autor

Wang Chongqing

• School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).