发明名称 |
Method for obtaining alumina from clays |
摘要 |
Disclosed is a method for obtaining alumina from silicates by calcining a dry mixture of the silicate and an alkali metal or ammonium salt, such as the sulphate, bisulphate, sulphite, etc. and dissolving the reaction product in water or an aqueous alkali. Hydrated alumina is precipitated from the resulting solution and calcined to alumina.
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申请公布号 |
US4342729(A) |
申请公布日期 |
1982.08.03 |
申请号 |
US19800169903 |
申请日期 |
1980.07.17 |
申请人 |
MARTINEZ LOPE, JESUS |
发明人 |
GARCIA CLAVEL, EMILIA;MARTINEZ LOPE, JESUS;CASAIS ALVAREZ, TERESA |
分类号 |
C01F7/20;C01F7/26;C01F7/34;(IPC1-7):C01F7/26 |
主分类号 |
C01F7/20 |
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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