发明名称 |
Glycerine purification process |
摘要 |
The level of impurities such as glycerol-based acetals and/or ketals in glycerine, particularly glycerol-dimethylketal, is reduced by extraction of the glycerine with supercritical or near critical carbon dioxide.
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申请公布号 |
US4683347(A) |
申请公布日期 |
1987.07.28 |
申请号 |
US19860877051 |
申请日期 |
1986.06.23 |
申请人 |
SHELL OIL COMPANY |
发明人 |
DIAZ, ZAIDA;MILLER, JAMES H. |
分类号 |
C07C29/86;(IPC1-7):C07C29/86;C07C31/22 |
主分类号 |
C07C29/86 |
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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