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| US4425310 | 29 Sep 1982 | 10 Jan 1984 | | Production of aluminum chlorides from bauxites and clays |
| US4425311 | 13 May 1982 | 10 Jan 1984 | | Production of a purified alumina-silica product and substantially pure aluminum trichloride from bauxites and clays |
| US4437887 | 29 Sep 1982 | 20 Mar 1984 | | Production of aluminum metal from alumina bauxites and clays by firstly producing a purified aluminum monochloride |
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| US7494692 | 3 Apr 2008 | 24 Feb 2009 | Institute of Process Engineering, Chinese Academy of Science
Dalian Rino Environment Engineering Science and Technology Co., Ltd. | Antioxidation coating for steel and antioxidation method using the same |
