Selective separation of chalcopyrite from jamesonite with guar gum

• Autorzy: Chen Xiong , Gu Guohua , Zhu Renfeng , Wang Chongqing

Identyfikatory

DOI

10.5277/ppmp18125

• Języki publikacji: EN

Abstrakty

EN

A novel reagent, guar gum (GG), is investigated as the depressant on the depression of chalcopyrite and jamesonite, when mixed aerofloat (CSU11) is used as the collector in flotation tests. Kinetics, dynamic potential, adsorption and infrared spectra analysis are performed to study the interaction mechanism between GG and minerals. The flotation results display that selective flotation separation of chalcopyrite from jamesonite is achieved under conditions of depressant GG 2.5 mg/dm3, collector CSU11 10 mg/dm3 and frother MIBC (Methyl isobutyl carbinol) 10 mg/dm3 at pH 5.3. As to mixed minerals flotation, the Cu grade and recovery in the concentrate is 21.35 % and 85.12 %, respectively, indicating that GG has a selective depression effect on jamesonite. Flotation kinetics shows that the addition of GG can dramatically reduce the floatability of jamesonite but hardly influences that of chalcopyrite. The zeta potential and adsorption reveal that the depressant GG adsorbs strongly on the surface of jamesonite. Infrared spectra reveal a dominant chemisorption between GG and jamesonite, while GG occurs weak chemisorption on chalcopyrite surface. This is the reason why GG has excellent selectivity for jamesonite and less effect on chalcopyrite.

Słowa kluczowe

EN

guar gum; chalcopyrite; jamesonite; flotation depressant

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 1
• Strony: 237--247
• Opis fizyczny: Bibliogr. 54 poz., rys., tab.

Twórcy

autor

Chen Xiong

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

autor

Gu Guohua

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

autor

Zhu Renfeng

• School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
• Zhaojin Mining Industry Company Limited, Yantai 264000, Shandong, China

autor

Wang Chongqing

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

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Uwagi

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