| 发明名称 |
ELECTROCHEMICAL METHOD OF PREPARING ALUMINIUM OXIDE |
| 摘要 |
FIELD: chemical industry. SUBSTANCE: electrochemical oxidation of metallic aluminium in aqueous ammonium chloride solution NH<SB>4</SB>Cl having concentration of 5-25 wt % is carried out using alternating sinosoidal current at industrial frequency of 50 Hz and current density of 0.1- 2.0 A/sq.cm within temperature range of 50-90 C. Gel thus formed is washed off and heat treated. The resulting gel has good specific surface for calcining samples at various temperatures. EFFECT: more efficient electrochemical method. 1 tbl
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| 申请公布号 |
RU2135411(C1) |
申请公布日期 |
1999.08.27 |
| 申请号 |
RU19980109218 |
申请日期 |
1998.05.07 |
| 申请人 |
TOMSKIJ POLITEKHNICHESKIJ UNIVERSITET |
发明人 |
KOSINTSEV V.I.;KOROBOCHKIN V.V.;KOVALEVSKIJ E.P.;BYSTRITSKIJ L.D. |
| 分类号 |
C01F7/42;(IPC1-7):C01F7/42 |
主分类号 |
C01F7/42 |
| 代理机构 |
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