Structural modification of cellulose to enhance the flotation efficiency of fine copper oxide ore

• Autorzy: Gu Guohua , Zhu Renfeng , Chen Zhixiang

Identyfikatory

DOI

10.5277/ppmp1864

• Języki publikacji: EN

Abstrakty

EN

Using more efficient collector to improve the recovery efficiency of fine copper oxide has become imperative as the shortage of copper mineral resources. In this study, the new collector 3-hydroxy butyrate-carboxy methyl cellulose xanthate (HCMCX) was synthesized by carboxy methyl cellulose, 3-hydroxy butyrate and carbon disulfide, all of which as raw materials . The structural characteristics of HCMCX was detected by both infrared spectrum and ultraviolet spectrum. Besides, the interacting behavior between HCMCX and fine malachite was investigated through particle size analysis, contact angle measurements, and flotation tests. Particle size analysis indicated that the mean size of malachite was increased by 8 μm while the HCMCX concentration at 200 mg/dm3. The contact angle measurements demonstrated that, comparing with the collector AX at a same dosage, the mineral surface of malachite showed a stronger hydrophobicity after interacting with HCMCX. Microflotation tests results exhibited that the recovery of malachite was about 94% when the pulp pH 8 and collector concentration at 200 mg/dm3. The results of practical ore flotation tests showed that HCMCX could as an excellent collector for flotation of fine malachite, finally to achieve the concentrates containing 20% Cu and 88% Cu recovery.

Słowa kluczowe

EN

fine malachite; collector; sulfuration flotation; contact angle; mean size; flocculation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 1
• Strony: 58--69
• Opis fizyczny: Bibliogr. 32 poz., rys., tab.

Twórcy

autor

Gu Guohua

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

autor

Zhu Renfeng

• 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, Sichuan, China

autor

Chen Zhixiang

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