贵州重晶石与方解石常温浮选分离试验研究

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• 英文论文题名：Research on flotation test of separation of barite and calcite from Guizhou at normal temperature
• 论文作者：童义隆 ; 罗惠华 ; 舒超
• 英文论文作者：LUO Hui-hua ; Tong Yi-long ; Shu Chao ; School of Resource and Civil Engineering ; Wuhan Institute of Technology
• 年：2016
• 作者机构：武汉工程大学资源与土木工程学院;
• 论文关键词：重晶石 ; 方解石 ; 常温 ; 正浮选
• 英文论文关键词：barite ; calcite ; Room temperature ; direct flotation
• 会议召开时间：2016-09-23
• 会议录名称：中部四省化学化工学会2016年学术年会摘要集
• 语种：中文
• 分类号：TD923;TD97
• 学会代码：JXHX
• 会议名称：中部四省化学化工学会2016年学术年会
• 会议地点：中国江西南昌
• 主办单位：中国化学会湖北代表处
• 学会名称：江西省化学化工学会
• 页数：1
• 文件大小：142k
• 原文格式：D
• 会议级别：地方

摘要

贵州某重晶石原矿品位低、含有硅酸盐及碳酸盐杂质较多,重晶石品位难以达到工业指标。为了提高资源的利用率,进行了实验室浮选试验研究。试验内容包括PH值与重晶石和方解石可浮性的关系试验,正浮选药剂用量试验,正浮选开路流程试验,正浮选闭路流程试验。最终采用常温正浮选对重晶石进行回收以及与方解石分离,浮选试验采用正浮选一粗两精一扫的工艺,在磨矿细度为85.91%,矿浆浓度为24%,正浮选矿浆温度20℃,取得重晶石精矿品位87.53%、回收率86.96%的较好技术指标,且Ca O含量降至0.8%以下,实现了重晶石与方解石的有效分离。
Guizhou a barite ore grade was low,containing silicate and carbonate impurities,and it was difficult to reach the industrial grade index.In order to improve the utilization rate of resources,flotation tests in laboratory were carried out.Test content includes the reiation of the fiotation behaviors of barite and caicite with p H vaiue,direct flotation reagent dosage test,direct flotation open circuit test,direct flotation closed circuit test.Finally,the direct flotation in room temperature(Viz.,One roughing,two cleaning and one scavenging for direct flotation) was adopted to recovery of barite and calcite separation.The grinding fineness 85.91%,slurry concentration was 24%,positive flotation pulp temperature of 20 ℃,the barite flotation concentrate achieved better technical indicators with grade of 87.53%,recovery rate 86.96%,and CaO content dropped below 0.8%,to achieve the effective separation of barite and calcite.

引文

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