Experimental Study on Flotation of Fluorite-Calcite Symbiotic Ore
LI Weisi1,2, YAN Weiping1,2, ZENG Xiaobo1,2, YU Futao1,2, DENG Jian1,2, LI Lun1,2
1.Institute of Multipurpose Utilization of Mineral Resources, CAGS, Chengdu 610041, Sichuan, China;
2.Technology Innovation Center for Comprehensive Utilization of Strategic Minerals Resources, Ministry of Natural Resources, Chengdu 610041, Sichuan, China
Abstract：Flotation tests were carried out for a fluorite-calcite symbiosis ore containing 31.09% CaF2 and 53.23% CaCO3, with the predominately valuable mineral of fluorite, and the dominantly gangue minerals of calcite, quartz and feldspar. After being milled to a fineness of -0.074 mm 75%, the ore was processed with acidized sodium silicate and EM-318 as depressants and EM-OL-3 as collector. Adopting a close-circuit flowsheet consisting of two stages of roughing, one stage of scavenging and eight stages of cleaning, a fluorite concentrate grading 97.26% CaF2 at 86.55% recovery can be obtained. Qualified as an acid-grade fluorite powder (with grade FC-97A) according to the Industry Standard for Ferrous Metallurgy (YB/T 5217—2005 (Fluorspar)), this fluorite concentrate can be used as the raw material in high-endfluorine chemical industry.
李维斯, 严伟平, 曾小波, 喻福涛, 邓建, 李伦. 某萤石-方解石共生矿浮选实验研究[J]. 矿冶工程, 2024, 44(1): 68-71.
LI Weisi, YAN Weiping, ZENG Xiaobo, YU Futao, DENG Jian, LI Lun. Experimental Study on Flotation of Fluorite-Calcite Symbiotic Ore. Mining and Metallurgical Engineering, 2024, 44(1): 68-71.
2024, Vol. 44 
