Monazite and apatite paragenetic ore enrichment method

US10006102B2 · kind B2 · utility

Assignee

• INSTITUTE OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES, CAGS · CN

Inventors

• Wenliang Xiong · Sichuan, CN
• Yaohui Yang · Sichuan, CN
• Shuping Liu · Los Angeles, US
• Chengqing Ji · Sichuan, CN
• Xiaobo Zeng · Hangzhou City, CN
• Jie Deng · South Burlington, US
• Xiangwen Liao · Sichuan, CN
• Bingyan Chen · Sichuan, CN
• Shanzhi DENG · Sichuan, CN

Key dates

• Filing date: Jan 8, 2015
• Grant date: Jun 26, 2018
• Expiry date: Mar 5, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/20
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention discloses a monazite and apatite paragenetic ore enrichment method. High-grade and high-recovery-rate monazite concentrate can be obtained by adopting the method through steps of ore grinding, floatation, magnetic separation and low-acid advanced leaching treatment and re-floatation. In this process, the applicable range of ore pulp temperature is wide, the process flow is short, the ore dressing conditions are mild, the energy consumption is small, the used diluted acid can be cyclically regenerated and used, the pollution is small, the environmental stress is small and the recovery rate of low-grade monazite and apatite paragenetic ores can be obviously improved.