发明名称 |
Method for the removal of organic substances from alkali metal aluminate solution |
摘要 |
In the production of alumina from bauxite by the Bayer process, the present invention provides an improvement for effectively and economically removing organic substances from a circulating alkali aluminate solution by contacting the aluminate solution containing organic substances with molecular oxygen gas or a molecular oxygen-containing gas in the presence of copper ions as a catalyst at an elevated temperature, thereby oxidizing the organic substances, adding a chemical substance to the resulting aluminate solution which reacts with copper ions to deposit a water-insoluble precipitate, and separating the precipitate from the solution, and recycling the precipitate as a copper source to the above-mentioned wet oxidation procedure.
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申请公布号 |
US4215094(A) |
申请公布日期 |
1980.07.29 |
申请号 |
US19790011568 |
申请日期 |
1979.02.12 |
申请人 |
SUMITOMO ALUMINUM SMELTING CO |
发明人 |
HARATO, TAKUO;INAO, JUN-ICHI;KATO, HISAKATSU;YAMADA, KOICHI |
分类号 |
B01J21/00;B01J27/00;C01F7/47;(IPC1-7):C01F7/06;C01F7/46 |
主分类号 |
B01J21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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