发明名称 |
СПОСОБ ДИСТИЛЛЯЦИИ АММИАКА |
摘要 |
The present invention relates to an improved process for distilling ammonia from a mixture, more particular from a mixture resulting from the reaction between aminonitrile and water (which reaction is also called cyclizing hydrolysis). The process for distilling the ammonia contained in an aqueous caprolactam solution, uses a column with a bottom temperature less than or equal to 160° C. and at an absolute pressure less than or equal to 5 bar, the ammonia distilled at the top of the column being compressed to a pressure greater than or equal to 10 bar and then condensed at a temperature of 25° C. to 60° C. |
申请公布号 |
RU2001104897(A) |
申请公布日期 |
2004.02.20 |
申请号 |
RU20010104897 |
申请日期 |
1999.07.15 |
申请人 |
РОДИА ФАЙБЕР ЭНД РЕЗИН ИНТЕРМЕДИЭЙТС (FR) |
发明人 |
БОКЕНЕ Жераль (FR);УССЬЕ Патрик (FR) |
分类号 |
C07D223/10;B01D1/28;B01D3/00;C01C1/02;C01C1/10;C07D201/16 |
主分类号 |
C07D223/10 |
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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