发明名称 |
PURIFICATION AND DECOLORIZATION OF OFF-COLOR ALKYL ALKANOLAMINES |
摘要 |
of The Disclosure Off-color N-(C4-C1O)alkyl di(C2-C3) alkanolamines purified and decolorized by vacuum distillation at a pressure within the range of 1 to 50 mm.Hg (1-50 torr) in the presence of water and or water-soluble metal borohydride whereby the distilled alkanolamine has a reduced APHA color rating which is maintained on storage.
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申请公布号 |
CA2050998(A1) |
申请公布日期 |
1992.03.25 |
申请号 |
CA19912050998 |
申请日期 |
1991.09.09 |
申请人 |
ATOCHEM NORTH AMERICA, INC. |
发明人 |
OVERGAARD, THOMAS H.;VERDUCE, LOUIS P. |
分类号 |
C07C213/10;(IPC1-7):C07C213/10;B01D3/10;C07C215/10 |
主分类号 |
C07C213/10 |
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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