发明名称 |
PROCEDIMENTO ED IMPIANTO PER LA RIDUZIONE DEL CROMO ESAVALENTE CONTENUTO NEI RESIDUI DELLA LAVORAZIONE DEI MINERALI DI CROMO |
摘要 |
<p>The present invention concerns a new process and the relative plant for reducing hexavalent chromium contained in the resultant earth after the production of chromium, in order to obtain the transformation from water-soluble compounds into insoluble compounds, the process comprising the phases of mixing the said residual products with one or more reducing agents and of indirectly heating the said mixture substantially without the presence of oxygen.</p> |
申请公布号 |
ITMI920092(A1) |
申请公布日期 |
1993.07.22 |
申请号 |
IT1992MI00092 |
申请日期 |
1992.01.21 |
申请人 |
LUIGI STOPPANI S.P.A. |
发明人 |
BRUZZONE GIUSEPPE;PERRONE DIEGO;SALVI ANNIBALE |
分类号 |
C01G;C01G37/00;C22B5/08;C22B34/32 |
主分类号 |
C01G |
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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