发明名称 |
METHOD OF PROCESSING ALUMINA-CONTAINING MATERIAL |
摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to nonferrous metallurgy, particularly to the technology of producing alumina from alumina-containing material. Alumina-containing material is leached. The obtained aluminate solution is separated from red mud and the aluminate solution is taken to the crystallisation step which is carried out at temperature 25-39C by adding crystalline aluminium sulphate to the aluminate solution in amount of 3.75-6.00% of the content of aluminium oxide in the aluminate solution. A mother solution and a residue containing aluminium hydroxide is obtained. The aluminium hydroxide residue is taken for calcination to obtain alumina. ^ EFFECT: invention increases efficiency of the process by increasing the degree of decomposition of the aluminate solution and cutting duration of decomposition of the solution. ^ 1 tbl, 17 ex |
申请公布号 |
RU2447023(C1) |
申请公布日期 |
2012.04.10 |
申请号 |
RU20100153549 |
申请日期 |
2010.12.27 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE AVTONOMNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "URAL'SKIJ FEDERAL'NYJ UNIVERSITET IMENI PERVOGO PREZIDENTA ROSSII B.N. EL'TSINA" |
发明人 |
LOGINOVA IRINA VIKTOROVNA;LOGINOV JURIJ NIKOLAEVICH;SHOPPERT ANDREJ ANDREEVICH |
分类号 |
C01F7/06;C01F7/14 |
主分类号 |
C01F7/06 |
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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