| 发明名称 |
MANUFACTURE OF HIGH PURITY CHROMIC OXIDE |
| 摘要 |
The present invention concerns a method for the recovery of high purity Cr2O3 from a Na2CrO4 or Na2Cr2O7 solution by producing (NH4)2CrO4 by solvent extraction using an organic solution of a tertiary amine followed by reaction of the organic phase with NH4OH evaporating the aqueous (NH4)2CrO4 and igniting the resulting solids to provide high purity Cr2O3. |
| 申请公布号 |
JPS5496000(A) |
申请公布日期 |
1979.07.28 |
| 申请号 |
JP19780149904 |
申请日期 |
1978.12.04 |
| 申请人 |
UNION CARBIDE CORP |
发明人 |
TADASHI JIYATSUKU KAGETSU;UIRIAMU BURANTONAA DE ATOREI;JIYOSEFU SOROMON FUOTSUKUSU;ORESUTE JIYOSEFU MARAKAANU |
| 分类号 |
C01G37/00;C01G37/02;C01G37/14;C09C1/34;H01M4/48 |
主分类号 |
C01G37/00 |
| 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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