A decomposing technique for scheelite concentrate and low-grade scheelite concentrate

稀有金属（英文版）, 2004, 23(2): 115-119.

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1.School of Metallurgy Science and Engineering, Central South University, Changsha 410083, China

2.School of Metallurgy Science and Engineering, Central South University, Changsha 410083, China

3.School of Metallurgy Science and Engineering, Central South University, Changsha 410083, China

4.School of Metallurgy Science and Engineering, Central South University, Changsha 410083, China

5.School of Metallurgy Science and Engineering, Central South University, Changsha 410083, China

6.School of Metallurgy Science and Engineering, Central South University, Changsha 410083, China

7.School of Metallurgy Science and Engineering, Central South University, Changsha 410083, China

A decomposing technique for scheelite concentrate and low-grade scheelite concentrate

Keywords： non-ferrous metallurgy

The effect of different decomposition conditions on tungsten recovery for scheelite concentrate has been examined. The results show that tungsten recovery can be more than 98% under decomposing conditions as follows: the amount of caustic soda is 2.2 and 3.2 times of theoretical respectively, ratio of water and ore is 0.7-0.8, temperature is 160℃, and preservation time is 2.0 h for scheelite concentrate (63.21% WO3) and low grade scheelite concentrate (55.17% WO3).

参考文献

[1]	Li H G;Sun P.M;Li Y.J.Facing challenge of industry, improving our tungsten hydrometallurgy technique to emulate the top countries[J].China Tungsten Industry(in Chinese),2001(5-6):49-51.
[2]	Li H G.Rare metals metallurgy (in Chinese)[M].北京:冶金工业出版社,1990
[3]	Li H G;Liu M.H;Si Z.J et al.Caustic Decomposition to Scheelite Concentrate and Scheelite-wolframite Mixed Concentrate: Technique and Equipmen[P].Chinese Patent, 85 1 00350.8,1985.
[4]	Li H G;Liu M.H;Dai C.J.Research to new technique of tungsten caustic decomposition[J].Rare Metals and Cemented Carbides(in Chinese),1987(1-2):1.
[5]	Li Y J;Sun P.M;Liu M.S et al.Mechanical activated caustic decomposition to scheelite concentrate[J].Transactions of Nonferrous Metals Society of China,1995,5(03):27.
[6]	Liu M S;Sun P.M;Li Y.J et al.Mechanical activated caustic decomposition of tungsten concentrate with a high content of calcium[M].ICHM'92,1:296.
[7]	Zelikmann A H.Metallurgy of Rare Metals[M].Metall; Mosco,1991:33.
[8]	Li H G.Foundation and New Technique of Tungsten Caustic Decomposition (in Chinese)[M].Central South University of Technology Publisher,Changsha,1997:1-10.
[9]	Sun P M;Li Y.J;Li H.G.Energetics of scheelite caustic decomposition[J].Transactions of Nonferrous Metals Society of China,1993(02):37.

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A decomposing technique for scheelite concentrate and low-grade scheelite concentrate

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