Research on the Flotation Reagent Regime of Jinchuan Copper-Nickel Sulfide Ore in Acidic Medium

LI Bowen; YANG Heng; CHENG Shaoyi; GAO Zhiyong; CAO Jian

doi:10.13779/j.cnki.issn1001-0076.2022.07.002

2022 Vol. 42, No. 2

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Article navigation > Conservation and Utilization of Mineral Resources > 2022 > 42(2): 25-32

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LI Bowen, YANG Heng, CHENG Shaoyi, GAO Zhiyong, CAO Jian. Research on the Flotation Reagent Regime of Jinchuan Copper-Nickel Sulfide Ore in Acidic Medium[J]. Conservation and Utilization of Mineral Resources, 2022, 42(2): 25-32. doi: 10.13779/j.cnki.issn1001-0076.2022.07.002

Citation:

LI Bowen, YANG Heng, CHENG Shaoyi, GAO Zhiyong, CAO Jian. Research on the Flotation Reagent Regime of Jinchuan Copper-Nickel Sulfide Ore in Acidic Medium[J]. Conservation and Utilization of Mineral Resources, 2022, 42(2): 25-32. doi: 10.13779/j.cnki.issn1001-0076.2022.07.002

Research on the Flotation Reagent Regime of Jinchuan Copper-Nickel Sulfide Ore in Acidic Medium

1.
School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, Hunan, China
2.
Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources, Central South University, Changsha 410083, Hunan, China
3.
Hunan International Joint Research Center for Efficient and Clean Utilization of Critical Metal Mineral Resources, Central South University, Changsha 410083, Hunan, China
4.
State Key Laboratory of Comprehensive Utilization of Nickel and Cobalt Resources, Jinchuan 737100, Gansu, China

More Information

Corresponding author: CAO Jian

Received Date: 01 March 2022

Publish Date: 25 April 2022

Abstract

Abstract

The content of magnesium silicate gangue minerals in Jinchuan sulfide copper-nickel ore is high. It affects the enrichment of nickel and copper in concentrates through heterogeneous condensation and mechanical entrainment after grinding. Related researches and foreign industrial practices have proved that acidic medium flotation can promote the decomposition of magnesium silicate gangue minerals, which significantly improved the recovery of useful minerals in copper-nickel sulfide ore and reduced the content of magnesium oxide in concentrates. At present, however, there are few researches on the suitable reagent system for the acidic medium flotation of sulfide minerals in China. To solve this issue, feed of the second stage processing production line of the third flotation plant of Jinchuan Group Co. (Ni and Cu grade of ore was 0.42% and 0.32% respectively) was regarded as the research object. The open circuit flotation tests studied the new reagent system suitable for the acid medium, and compared and analyzed the performance of different frothers by using the foam tester. Under acid flotation condition (pH value = 4), with sodium isobutyl xanthanate (NaIBX) as the collector, O-isopropyl-N-ethylthiocarbamate (Z-200) as the co-collector and terpineol as the frother, after one roughing, two cleaning and two scavenging, the recovery of Ni and Cu are 58.92%, 45.60% and the grade of Ni and Cu are 3.54%, 2.03% respectively. Compared with comparative system (according with industrial process), the recovery of Ni and Cu are increased by 7.54%, 24.40% and the grade of Cu is increased by 0.70%. The new reagent system significantly improved the comprehensive utilization rate of copper-nickel sulfide resources in Jinchuan.
- Jinchuan /
- copper-nickel sulfide ore /
- depression of magnesium silicate gangue minerals /
- acid medium /
- flotation /
- new reagent regime /
- frother

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