Title:
METHODS FOR PREPARING AND REGENERATING MATERIALS CONTAINING AMORPHOUS IRON OXYHYDROXIDE AND DESULFURIZER COMPRISING THE SAME
Document Type and Number:
WIPO Patent Application WO/2010/081287
Kind Code:
A1
Abstract:
A method for preparing materials containing amorphous iron oxyhydroxide comprises the following steps: preparing a solution of soluble ferrous salt; mixing the solution with solid carbonate or acid carbonate or the solution thereof to react; filtering and water-washing to obtain a filter cake; preparing a suspension of the filter cake, introducing gases containing oxygen to perform oxidization, and then filtering and drying. A method for regenerating the materials containing amorphous iron oxyhydroxide, a desulfurizer containing the materials and an organic binder, and methods for preparing and regenerating the desulfurizer are also provided. The materials and desulfurizer containing the same may be reused after regeneration so as to make efficient use of the desulfurizer resources without polluting the environment.
Inventors:
LIU ZHENYI (CN)
LIN KE (CN)
GAO QUNYANG (CN)
LIN KE (CN)
GAO QUNYANG (CN)
Application Number:
PCT/CN2009/001595
Publication Date:
July 22, 2010
Filing Date:
December 30, 2009
Export Citation:
Assignee:
BEIJING SANJU ENVIRONMENT PROT (CN)
LIU ZHENYI (CN)
LIN KE (CN)
GAO QUNYANG (CN)
LIU ZHENYI (CN)
LIN KE (CN)
GAO QUNYANG (CN)
International Classes:
B01D53/52; B01J23/745; B01J23/90; B01J37/04; B01J38/48; C01G49/02
Foreign References:
| US20080047395A1 | 2008-02-28 |
Other References:
LIU, ZHENYI ET AL.: "Characterization for Iron Oxide Desulfurizer Active Component with High Sulfur Content", NATIONAL INFORMATION CENTER OF GAS PURIFICATION 2006 TECHNICAL EXCHANGES PROCEEDINGS, December 2006 (2006-12-01), pages 107 - 108, XP008150134
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (North Ring Center Building ANo. 18 Yu-Min Road,XiCheng, Beijing 9, CN)
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