Title:
流動床フライアッシュを使用して工業用アルミナを調製するための方法
Document Type and Number:
Japanese Patent JP5368659
Kind Code:
B2
Abstract:
Provided a method for preparing metallurgical-grade alumina by using fluidized-bed fly ash, comprising: a) removing iron by wet magnetic separation after crushing the fly ash; b) reacting the fly ash after magnetic separation with hydrochloric acid to obtain a hydrochloric leachate; c) passing the hydrochloric leachate through macro-porous cationic resin to deeply remove iron to obtain a refined aluminum chloride solution; d) concentrating and crystallizing the refined aluminum chloride solution to obtain an aluminum chloride crystal; and e) calcining the aluminum chloride crystal to obtain the metallurgical-grade alumina. The method is simple, the procedure is easy to be controlled, the extraction efficiency of alumina is high, the production coast is low, and the product quality is steady.
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Inventors:
Guo Chaohua
Way kundi
Chan Paypin
Han Jang Guo
Jijuncho
Sun Yang Bin
Chao Eisin
Way kundi
Chan Paypin
Han Jang Guo
Jijuncho
Sun Yang Bin
Chao Eisin
Application Number:
JP2013506473A
Publication Date:
December 18, 2013
Filing Date:
April 27, 2011
Export Citation:
Assignee:
China Shenhua Energy Company Limited
International Classes:
B01J39/04; B01J39/20; B01J47/02; B03C1/027; B03C1/029; B03C1/03; B03C1/032; B03C1/034; B09B3/00; B09B5/00; C01F7/30
Domestic Patent References:
| JP59501312A | ||||
| JP63021218A | ||||
| JP4002604A | ||||
| JP6032618A | ||||
| JP8024831A | ||||
| JP10122541A | ||||
| JP2000505034A | ||||
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| JP2008094660A | ||||
| JP2009519829A | ||||
| JP2011136330A |
Foreign References:
| US4652433 | ||||
| CN101566574A | ||||
| CN1670028A | ||||
| CN201179479Y | ||||
| CN101811712A | ||||
| CN101863498A |
Other References:
Shaoling CHENG et al.,The synergistic effect between hydrophobic and electrostatic interactions in the uptake of amino acids by strongly acidic cation-exchange resins,Journal of Chromatography A,Available online 26 January 2006,Vol.1108, pp.43-49
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Satsuki Ichikawa
Sadao Kumakura
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Satsuki Ichikawa