德昌红柱石矿化学物相分析方法的研究

doi:10.13228/j.issn.1000-7571.2014.02.008

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摘要结合德昌红柱石矿的组成特征, 研究了红柱石矿的化学物相分析方法。试样在常温下经氢氟酸和王水的混合酸(V(氢氟酸)∶V(王水)=1∶1)浸取14 h, 然后过滤溶液, 洗涤并灰化沉淀物, 以重量法测定红柱石矿物含量。由于红柱石在溶解过程中会有一定量的损失, 使红柱石回收率偏低, 但可以用实验求得的人工模拟红柱石样的溶失校正系数对测定结果进行校正而解决。用实验方法测定德昌矿区红柱石样品中红柱石含量, 其测定结果与滴定法的测定结果基本一致, 相对标准偏差(n=25)为1.9%。

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	朱跃华
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	杨蓉
	陈志琴
	余邦权

关键词 ：红柱石, 物相分析, 重量法, 溶失校正系数

Abstract：The chemical phase analysis method for andalusite ore was studied according to the composition characteristics of Dechang andalusite ore. The sample was leached for 14 h at room temperature in a mixed acid of hydrofluoric acid and aqua regia (V(hydrofluoric acid):V (aqua regia) = 1∶1). The solution was filtered. The precipitate was washed and ashed, then the andalusite mineral content was determined by gravimetric method. As andalusite underwent certain amounts of loss in the dissolution process, so the recovery of andalusite tended to become low, but it could be solved by correcting the determination results with the dissolving loss correction coefficient obtained by testing the artificially simulated andalusite samples. The proposed method was applied for the determination of andalusite in andalusite sample of Dechang Mining Area and the determination results were consistent with those obtained by titrimetric method, with relative standard deviation (n=25) of 1.9%.

Key words： andalusite phase analysis gravimetric method dissolving loss correction factor

收稿日期: 2013-07-21

ZTFLH:

P578.945

通讯作者: 卢智(1983-), 男, 助理工程师, 主要从事实验测试工作;E-mail:273266371@qq.com E-mail: 273266371@qq.com

作者简介: 朱跃华(1958-), 男, 高级工程师, 主要从事实验测试和湿法冶金工作

引用本文:

朱跃华, 卢智, 宋晋, 冯永亮, 杨蓉, 陈志琴, 余邦权. 德昌红柱石矿化学物相分析方法的研究[J]. 冶金分析, 2014, 34(2): 36-39. ZHU Yue-hua , LU Zhi, SONG Jin, FENG Yong-liang, YANG Rong, CHEN Zhi-qin, YU Bang-quan. Study on chemical phase analysis methods for Dechang andalusite ore. , 2014, 34(2): 36-39.

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http://47.93.29.245/Jweb_yjfx/CN/10.13228/j.issn.1000-7571.2014.02.008 或 http://47.93.29.245/Jweb_yjfx/CN/Y2014/V34/I2/36

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