硫氰酸盐光度法测定钨精矿中三氧化钨

doi:10.13228/j.boyuan.issn1000-7571.009432

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摘要利用新型多元素测定仪的良好线性,建立了硫氰酸盐光度法测定钨精矿中三氧化钨含量的方法。对试样的熔融条件、称样量、结果的计算方法、显色剂的配制等方面进行了优化,并用管理样和生产样品验证了分析方法的准确度和精密度。结果表明,试样用过氧化钠与碳酸钠混合熔剂熔融,熔块经EDTA(20 g/L)-乙醇(5 g/L)浸取液浸取后,铁、钙、锰、铜、镍、铋等对测定没有干扰,但铌干扰测定,可用草酸溶液消除。方法用于钨精矿中三氧化钨的测定,测定值与参考值或重量法测定值相吻合,相对标准偏差(RSD,n=6)在0.12%～0.30%之间。

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	陈珍娥
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关键词 ：钨精矿, 三氧化钨, 硫氰酸盐光度法

Abstract：A method for the determination of tungsten trioxide in tungsten concentrate was established by taking the advantage of good linearity of novel multi-element analyzer. Fusion conditions, sample mass, calculation method, chromogenic agent preparation, etc. were optimized. Method accuracy and precision were verified by management sample and production sample. The results showed that after the sample was fused by mixed fuse of sodium peroxide and sodium carbonate and the fusant was leached by EDTA (20 g/L)-ethyl alcohol (5 g/L), Fe, Ca, Mn, Cu, Ni, Bi, etc. had no interference with the determination, except for Nb, whose interference could be eliminated by oxalic acid. The proposed method has been applied to determine tungsten trioxide in tungsten concentrate. The found values were consistent with the reference value or the results of gravimetry. The relative standard deviation (RSD, n=6) was within 0.12%-0.30%.

Key words： tungsten concentrate tungsten trioxide thiocyanate spectrophotometry

收稿日期: 2014-07-02

基金资助:黔北特色资源开发利用产学研基地项目(黔教合KY字[2013]128)

作者简介: 陈珍娥(1975-),女,高级工程师,主要从事分析化学研究;E-mail:chenzhenwww@163.com

引用本文:

陈珍娥, 张海. 硫氰酸盐光度法测定钨精矿中三氧化钨[J]. 冶金分析, 2015, 35(1): 55-58. CHEN Zhen-e, ZHANG Hai. Determination of tungsten trioxide in tungsten concentrate by thiocyanate spectrophotometry. , 2015, 35(1): 55-58.

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http://47.93.29.245/Jweb_yjfx/CN/10.13228/j.boyuan.issn1000-7571.009432 或 http://47.93.29.245/Jweb_yjfx/CN/Y2015/V35/I1/55

[1]	吴伟明,徐晶,梁晓鹏,等. 8-羟基喹啉重量法测定钨精矿中WO3的含量[J].中国钨业(China Tungsten Industry),2012,27(3):36-39.
[2]	王燕.白钨精矿中三氧化钨的测定[J].四川冶金(Sichuan Metallurgy),2002(6):48-49.
[3]	纳洪良,杨汝全. 钨精矿中钨的氧化还原滴定法[J].冶金分析(Metallurgical Analysis),1997,17(3): 41-43.
[4]	杨汉清.以聚丙烯酰胺作聚沉剂络合滴定法测定钨精矿中钨[J].云南冶金(Yunnan Metallurgy),1992(1):51-53.
[5]	普旭力,王鸿辉,叶淑爱,等.波长色散X射线荧光光谱法同时测定钨精矿中主次量组分[J].岩矿测试(Rock and Mineral Analysis),2010,29(2):143-147.
[6]	普旭力,王鸿辉,叶淑爱,等. 钽内标X射线荧光光谱法测定钨精矿中WO3[J].分析试验室(Chinese Journal of Analysis Laboratory) ,2010,29(4):41-44.
[7]	王再田,牛素琴,邓虹. XRF光谱测定钨精矿WO3(%)简便方法[J].光谱学与光谱分析(Spectroscopy and Spectral Analysis),1999,19(1):93-94.
[8]	邱林友. X射线荧光测定钨精矿中多组分[J]. 中国钨业(China Tungsten Industry),1995(10):17-18.
[9]	梁云生,毛禹平.极谱法测定矿石中高含量钨[J]. 中国无机分析化学(Chinese Journal of Inorganic Analytical Chemistry),2013,3(2):32-34.
[10]	葛思清.硫氰酸盐差示分光光度法测定钨精矿中的高含量钨[J].广东化工(Guangdong Chemical Industry),2013,17(40):182-183.
[11]	冯忠伟. 微波消解-分光光度法测定钨矿中钨[J].冶金分析(Metallurgical Analysis),2009,29(10):73-75.
[12]	杨道兴.用硫氰酸盐光度法测定钨铁、白钨矿、钨精矿中钨含量[J].冶金分析(Metallurgical Analysis),2004,24(3):1-13.
[13]	钟映兰. 771双光路全差示法在三氧化钨测定中的应用[J].中国钨业(China Tungsten Industry), 2000(3):38-39.
[14]	陈静仪,林园,李贤明,等.双波长差示分光光度法测定钨精矿中钨[J].分析化学(Chinese Journal of Analytical Chemistry),1990,18(10):970-973.
[15]	张宁.电感耦合等离子体原子发射光谱法测定矿石中的钨钼[J]. 冶金分析(Metallurgical Analysis),2010,30(10):25-28.
[16]	中华人民共和国国家质量监督检验检疫总局.GB/T 6150.1-2008 钨精矿化学分析方法:三氧化钨量的测定-钨酸铵灼烧重量法 [S].北京:中国标准出版社,2008.
[17]	张万祥. 现代有色冶金分析、测试[M].北京:冶金工业出版社,2007.