发明名称 |
CONTINUOUS PROCESS OF RECOVERING PURE, CONCENTRATED AMMONIA |
摘要 |
<p>This invention relates to a continuous process of recovering pure, concentrated ammonia from waste water, or from aqueous liquors, which in addition to ammonia contain acid constituents, which process comprises a stripping off of gas water, de-acidifi-cation and scrubbing. In this process, ammonia is stripped from the aqueous mixture and then scrubbed with an aqueous solution, pure ammonia being withdrawn and subjected to fine purification. The residual ammonia is stripped from the spent scrubbing liquor previously obtained then withdrawn and recycled. Further, aqueous solution having a (CO2+H2S):NH3 ratio ? 1 are de-acidified by stripping acid constituents.</p> |
申请公布号 |
CA1062879(A) |
申请公布日期 |
1979.09.25 |
申请号 |
CA19760255020 |
申请日期 |
1976.06.16 |
申请人 |
CHEMIE LINZ AKTIENGESELLSCHAFT;METALLGESELLSCHAFT AKTIENGESELLSCHAFT |
发明人 |
GARBER, ALFRED;STONNER, HANS-MARTIN;WIESNER, PAUL;SINCLAIR, ALAN;SCHMIDT, ALFRED |
分类号 |
C01C1/10;(IPC1-7):01C1/10 |
主分类号 |
C01C1/10 |
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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