发明名称 |
Method and apparatus for recycling heat treating salts |
摘要 |
A system for recycling heat treating salts such as nitrates and nitrites from a rinse bath including means to prevent the excessive build-up of impurities such as carbonates which impair heat treat efficiency. For example, carbonates which form in a nitrate-nitrite quench bath are removed by concentrating the rinse water, rectifying the concentrate and returning molten rectified salt to the quench.
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申请公布号 |
US4149702(A) |
申请公布日期 |
1979.04.17 |
申请号 |
US19770818382 |
申请日期 |
1977.07.25 |
申请人 |
PARK CHEMICAL COMPANY |
发明人 |
FOREMAN, ROBERT W.;DUBAL, GAJEN P. |
分类号 |
C21D1/46;C21D1/63;(IPC1-7):C21D1/46 |
主分类号 |
C21D1/46 |
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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