| 萤石重晶石方解石共生非金属矿物分析方法研究 |
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| 引用本文： | 王峰,倪海燕.萤石重晶石方解石共生非金属矿物分析方法研究[J].岩矿测试,2013,32(3):449-455. |
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| 作者姓名： | 王峰 倪海燕 |
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| 作者单位： | 中南冶金地质研究所,湖北宜昌,443003 |
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| 基金项目： | 湖北省自然科学基金项目(2009-2011项目序号944) |
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| 摘 要： | 萤石、方解石、重晶石是自然界中普遍共生的非金属矿,具有十分重要的经济价值.目前对于该类共生矿物中不同矿物含量的分离测定,尚未建立较系统、准确的方法.本文通过条件试验,选用10％冰醋酸作为溶剂溶解分离方解石和萤石,硝酸-高氯酸溶解分离萤石和重晶石,制定了一套适用于方解石、萤石、重晶石共生矿物的分离分析方法流程.应用该实验流程对三类矿石组合样品及实际样品进行分析,内外检的测定结果准确可靠;对GBW 07250 ～ GBW 07254五个萤石国家一级标准物质和一个重晶石管理样品进行分析,方法精密度(RSD)＜0.4％,证明该方法流程也适用于萤石或重晶石含量较高的样品分析.与国家标准方法GB/T 5195.1-2006(萤石氟化钙含量测定)比较,本流程更加连续简便,可指导方解石、萤石、重晶石共生矿物资源评价、选矿及回收试验,有利于提高该类非金属矿物的综合利用价值.
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| 关 键 词： | 萤石 方解石 重晶石 分离测定 |
| 收稿时间： | 2012/12/12 0:00:00 |
| 修稿时间： | 2/7/2013 12:00:00 AM |
Study on Analytical Method for Paragentic Non-metallic Minerals of Fluorite, Barite and Calcite |
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| WANG Feng and NI Hai-yan.Study on Analytical Method for Paragentic Non-metallic Minerals of Fluorite, Barite and Calcite[J].Rock and Mineral Analysis,2013,32(3):449-455. |
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| Authors: | WANG Feng and NI Hai-yan |
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| Institution: | South-Central Metallurgy Geosciences Institute, Yichang 443003, China;South-Central Metallurgy Geosciences Institute, Yichang 443003, China |
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| Abstract: | Fluorite, calcite and barite are common paragentic non-metallic minerals in nature, which have very important economic value. At present, there is no systematic and accurate method established for different mineral content analysis for these associated minerals. After the optimal conditional experiment, 10% glacial acetic acid was selected as the solvent to separate calcite and fluorite, and nitric acid-perchloric acid were selected to separate fluorite and barite. A chemical procedure has been developed to separate and determine the contents of calcite, fluorite and barite in associated minerals. Based on the application of the experimental process for three types of ore combination samples and the practical samples, the determination results were accurate and reliable. Method precisions (RSD) were less than 0.4% for five national level of standard materials of fluorite from GBW 07250-GBW 07254 and a barite management sample. This method is suitable to determine high contents in fluorite and barite samples. Compared with the national standard method of GB/T 5195.1-2006 for calcium and fluoride content analysis, the report process was simple and easy to operate. This method can be used to evaluate mineral resources, separation and recovery tests of calcite, fluorite and barite, which improves the comprehensive non-metallic mineral utilization value. |
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| Keywords: | fluorite calcite barite separation and determination |
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