Improved flotation of auriferous arsenopyrite by using a novel mixed collector in weakly alkaline pulp

• Autorzy: Wang Xiaohui , Zhao Kaile , Bo Hui , Yan Wu , Wang Zhen , Gu Guohua , Gao Zhiyong

Identyfikatory

DOI

10.37190/ppmp/127883

• Języki publikacji: EN

Abstrakty

EN

The purpose of using a mixed collector is to increase both flotation efficiency and selectivity. The mixed collector of potassium isopentyldithiocarbonate and N-dodecyl mercaptan exhibits high efficiency for the flotation of auriferous arsenopyrite, and the 2:1 mixing mass ratio of potassium isopentyldithiocarbonate and N-dodecyl mercaptan is preferred. Batch flotation tests indicate that a concentrate with the grade of 47.58 g/Mg Au and the recovery of 86.45% Au is achieved by using the mixed potassium isopentyldithiocarbonate/N-dodecyl mercaptan in weakly alkaline pulp. The collector mixture potassium isopentyldithiocarbonate + N-dodecyl mercaptan has greater adsorption density on the arsenopyrite surface than other conventional mixed collectors. The mixed potassium isopentyldithiocarbonate/N-dodecyl mercaptan can adsorb onto the arsenopyrite surface by intense chemisorptions, and the Sulfur-Iron chemical complexation is considered as the main adsorption mode. This is the reason why mixed potassium isopentyldithiocarbonate and N-dodecyl mercaptan collector can improve the flotation efficiency of auriferous sulfides.

Słowa kluczowe

EN

gold mine; arsenopyrite; mixed collector; flotation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2020
• Tom: Vol. 56, iss. 5
• Strony: 996--1004
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Wang Xiaohui

• Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Chengdu 610041, Sichuan, China

autor

Zhao Kaile

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

autor

Bo Hui

• Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Chengdu 610041, Sichuan, China

autor

Yan Wu

• Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Chengdu 610041, Sichuan, China

autor

Wang Zhen

• School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
• School of Minerals Processing and Bio-engineering, Central South University, Changsha 410083, Hunan, China

autor

Gu Guohua

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

autor

Gao Zhiyong

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

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