发明名称 |
MANUFACTURE OF SOIL MODIFIERS |
摘要 |
Soil modifiers comprising from 80 to 95% by weight of a mixture of ferric oxide and ferric sulphate in an oxide/sulphate weight ratio of from 0.2:1 to 2:1 are prepared by calcining at 500 DEG -600 DEG C in the presence of an oxidizing gas a material consisting essentially of ferrous sulphate with an average number of molecules of crystallization of from 1 to 5 obtained by partial dehydration of the waste materials, consisting essentially of ferrous sulphate heptahydrate, obtained in the manufacture of titanium dioxide from ilmenites or ilmenite slags by the sulphate process. These modifiers are particularly suitable for clay soils. |
申请公布号 |
AU1504576(A) |
申请公布日期 |
1977.04.21 |
申请号 |
AU19760015045 |
申请日期 |
1976.06.18 |
申请人 |
SOCIETA@ ITALIANA RESINE S.I.R. S.P.A. |
发明人 |
LUIGI PICCOLO;GABRIELE BOTTAI;ANTONIO PAOLINELLI;ANGELO LA ROVERE |
分类号 |
C09K17/00;C01B17/50;C01G49/00;C01G49/14;C05D9/02;C09K17/02;C09K101/00 |
主分类号 |
C09K17/00 |
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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