| 发明名称 |
Removal of 3-mercapto-4-methyl-2-pentanone from zirconium/hafnium separation processes |
| 摘要 |
A method of essentially preventing the formation of 3-mercapto-4-methyl-2-pentanone by selectively controlling an ammonium thiocyanate-methyl isobutyl ketone regeneration system by maintaining the pH in the range of 4 to 9, and the temperature below 150 DEG F.
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| 申请公布号 |
US4202862(A) |
申请公布日期 |
1980.05.13 |
| 申请号 |
US19780937446 |
申请日期 |
1978.08.28 |
| 申请人 |
TELEDYNE INDUSTRIES INC |
发明人 |
ASH, KENNETH C;CARTER, DOROTHY P;JACOBY, LAWRENCE J;NIELSEN, RALPH H;ROSENAU, RICHARD A |
| 分类号 |
C01G25/00;C01G27/00;C22B3/26;C22B3/34;(IPC1-7):C01G25/00 |
主分类号 |
C01G25/00 |
| 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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