发明名称 |
INTEGRATED UREA-AMMONIA PROCESS |
摘要 |
Improved integrated process for simultaneous synthesis of ammonia and urea. Improved yields of urea in purified form are obtained by a simple process which curtails the addition of external water to the process. Two carbon dioxide absorbers are employed. A concentrated ammonium carbonate solution is utilized in the primary carbon dioxide absorber. A secondary carbon dioxide absorber is downstream in series to the first or primary carbon dioxide absorber. An ammonical solution of ammonium carbonate is utilized in the secondary carbon dioxide absorber. |
申请公布号 |
EG11907(A) |
申请公布日期 |
1978.03.29 |
申请号 |
EG19750000334 |
申请日期 |
1975.06.08 |
申请人 |
SNAM PROGETTI SPA |
发明人 |
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分类号 |
C01B3/52;C01C1/04;C01C1/26;C07C67/00;C07C239/00;C07C273/04;C07C273/10 |
主分类号 |
C01B3/52 |
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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