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A decomposing technique for scheelite concentrate and low-grade scheelite concentrate 被引量：2

A decomposing technique for scheelite concentrate and low-grade scheelite concentrate
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摘要 The effect of different decomposition conditions on tungsten recovery forscheelite concentrate has been examined. The results show that tungsten recovery can be more than98% under decomposing conditions as follows: the amount of caustic soda is 2.2 and 3.2 times oftheoretical respectively, ratio of water and ore is 0.7-0.8, temperature is 160℃, and preservationtime is 2.0 h for scheelite concentrate (63.21 % WO_3) and low grade scheelite concentrate (55.17%WO_3). The effect of different decomposition conditions on tungsten recovery forscheelite concentrate has been examined. The results show that tungsten recovery can be more than98% under decomposing conditions as follows: the amount of caustic soda is 2.2 and 3.2 times oftheoretical respectively, ratio of water and ore is 0.7-0.8, temperature is 160℃, and preservationtime is 2.0 h for scheelite concentrate (63.21 % WO_3) and low grade scheelite concentrate (55.17%WO_3).
作者 HUO Guangsheng SUN Peimei LI Honggui LI Yunjiao ZHAO Zhongwei SUN Zhaoming LIU Maosheng School of Metallurgy Science and Engieering, Central South University, Changsha 410083, China
出处 《Rare Metals》 SCIE EI CAS CSCD 2004年第2期115-119,共5页 稀有金属（英文版）
关键词 non-ferrous metallurgy caustic soda digestion scheelite concentrate lowgrade scheelite concentrat non-ferrous metallurgy caustic soda digestion scheelite concentrate lowgrade scheelite concentrat
分类号 TF841.1 [冶金工程—有色金属冶金]
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参考文献9

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  • 3[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.
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同被引文献25

  • 1安占涛,罗小娟.钨选矿工艺及其进展[J].矿业工程,2005,3(5):29-32. 被引量：34
  • 2邱显扬,董天颂.现代钨矿选矿[M].北京:冶金工业出版社,2012.
  • 3王豫新,崔国际.钨(上册)[M].赣州:江西有色冶金研究所,1979.7.
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  • 6Cooper T G, Leeuw N H. A combined ab initio and at- omistic simulation study of the surface and interracial structures and energies of hydrated scheelite: introducing a CaWO4 potential model [ J ]. Surface Science, 2003, (531) : 159.
  • 7Yuan P Q, Cheng Z M, Zhou Z M, Yuan W K. Zeta potential on the anti-scalant modified sub-micro calcite surface [J]. Physicochemical and Engineering Aspects, 2008, 328 ( 1-3 ) : 60.
  • 8Minoru Itoh, Masami Fujita. Optical properties of scheelite and raspite PbWO4 crystals [ J]. Phys. Rev. B, 2000, 62(19): 12825.
  • 9Minoru Itoh, Dmitri L Alov, Masami Fujita. Exciton luminescence of scheelite and raspite structured PbWO4 crystals [ J ]. Journal of Luminescence, 2000, (87-89) : 1243.
  • 10Anisimov V I, Aryasetiawan F, Lichtenstein A I. First-principles calculations of the electronic structure and spectra of strongly correlated systems: the LDA + U method [ J ]. Journal of Physics: Condensed Matter, 1997, 9(4): 767.

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Rare Metals
2004年 第2期

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