Inhibiting effect of citric acid on the floatability of serpentine activated by Cu(II) and Ni(II) ions

• Autorzy: Huang Jun-wei , Zhang Cheng-qiang

Identyfikatory

DOI

10.5277/ppmp19018

• Języki publikacji: EN

Abstrakty

EN

The laboratory researches about the inhibiting effect of citric acid on the flotation performance of serpentine activated by Cu²⁺ and Ni²⁺ were carried out through micro flotation tests, zeta potential measurements, collector adsorption capacity measurements and solution chemistry analysis. The flotation results showed that Cu²⁺ and Ni²⁺ could remarkably activate the flotation of serpentine when the pH value was more than 6, however, this activation could be effectively weakened by adding citric acid. Zeta potential measurement and adsorption capacity measurement indicated that the presence of citric acid could prevent the adsorption of Cu²⁺ and Ni²⁺, and therefore reduce the adsorption amount of potassium butyl xanthate on serpentine surface. Furthermore, solution chemical analysis of the flotation system showed that copper hydroxide Cu(OH)_2(s) and the nickel hydroxide Ni(OH)2(s) were the main component in the pH range of 9 to 10, which adsorbed onto serpentine surface and made it activated; while the citric acid could effectively prohibit the formation of these metal hydroxide in slurry so as to inhibit the activation impact.

Słowa kluczowe

EN

copper ion; nickel ion; serpentine; floatation; activation; inhibiting

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 4
• Strony: 960--968
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wz.

Twórcy

autor

Huang Jun-wei

• Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, Zhengzhou 450006, China
• National Engineering Research Center for Multipurpose Utilization of Nonmetallic Mineral Resources, Zhengzhou 450006, China

autor

Zhang Cheng-qiang

• Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, CAGS, Zhengzhou 450006, China
• School of Resourcesand Civil Engineering, Northeastern University, Shenyang 110819, China
• National Engineering Research Center for Multipurpose Utilization of Nonmetallic Mineral Resources, Zhengzhou 450006, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).