贵州某含稀土硅质磷矿反浮选试验研究

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英文篇名：Experimental study on reverse flotation of a siliceous phosphate ore containing rare earth elements in Guizhou 作者：聂忠华 ; 刘安荣 ; 彭伟 ; 王振杰 英文作者：NIE Zhonghua;LIU Anrong;PENG Wei;WANG Zhenjie;Guizhou Provincial Qianxi Bureau of Land Resources;Guizhou Provincial Institute of Metallurgical and Chemical Engineering; 关键词：含稀土硅钙质磷矿 ; 反浮选 ; 脱硅捕收剂KP-89 ; 磷精矿 英文关键词：siliceous-calcareous phosphate ore containing rare earth elements;;reverse flotation;;desilication collector KP-89;;phosphate concentrate 中文刊名：HGKJ 英文刊名：Industrial Minerals & Processing 机构：贵州省黔西县国土资源局;贵州省冶金化工研究所; 出版日期：2019-06-14 出版单位：化工矿物与加工 年：2019 期：v.48;No.408 基金：贵州省科技支撑计划项目(黔科合SY字[2014]3059号);; 贵州省联合基金项目(黔科合LH字[2016]7066号) 语种：中文; 页：HGKJ201906012 页数：4 CN：06 ISSN：32-1492/TQ 分类号：43-45+50

摘要

贵州某磷矿原矿P_2O_5品位为23.21%、SiO_2品位为20.03%、REO品位为0.076%,以混合酸为含磷矿物抑制剂、自制的KP-89为脱硅捕收剂,采用单一反浮选流程进行了脱硅富磷研究。结果表明,在磨矿细度为-0.074mm质量分数占80.25%、混合酸用量为16kg/t、KP-89用量为800g/t的条件下,获得了P_2O_5品位为33.49%、P_2O_5回收率为83.17%、REO品位为0.125%、REO回收率为94.80%、SiO_2质量分数为13.86%的磷精矿选别指标。
        A phosphate mine in Guizhou has the crude ore being P_2O_5 grade 23.21%,SiO_2 grade 20.03% and REO grade0.076%.With mixed acids as depressant of phosphate minerals and self-made KP-89 as desilication collector,silicon removal and phosphate enrichment were studied by a single reverse flotation process.The results showed that with grinding fineness being-0.074 mm 80.25%,dosage of mixed acids 16 kg/t and dosage of KP-89 800 g/t,aphosphate concentrate with P_2O_5 grade33.49%,P_2O_5 recovery 83.17% and REO grade 0.125%,REO recovery 94.80% and SiO_2 content 13.86% was obtained.

引文

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