发明名称 |
Adjunct for removal of aldehydes from chemical manufacturing production streams during distillative purification |
摘要 |
A method for improving purification efficiency when distilling off aldehyde contaminants during chemical manufacturing processes by adding a substituted aromatic amine having electron donating group substituents prior to the distillation column. The method is particularly useful for removal of aldehydes such as acrolein, generated as a by-product of acrylonitrile manufacture. Preferred aromatic amines are 2-amino aniline, 3,4-dimethyl aniline and 4-ethyl aniline.
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申请公布号 |
US6074532(A) |
申请公布日期 |
2000.06.13 |
申请号 |
US19980186579 |
申请日期 |
1998.11.05 |
申请人 |
NALCO/EXXON ENERGY CHEMICALS, L.P. |
发明人 |
PATEL, NATU R.;LEWIS, VINCENT E.;ENDERSON, MARGARET D. |
分类号 |
B01D3/00;C07B63/04;C07C253/34;C07C255/08;C10G29/00;(IPC1-7):B01D3/34 |
主分类号 |
B01D3/00 |
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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