发明名称 |
Crystallization process for purification of paraxylene |
摘要 |
Improved process and apparatus for purifying paraxylene from mixed C8-aromatic feedstocks are disclosed in which the use of at least two crystallization stages operated at different temperatures in combination with a final product separator improves purity and recovery while reducing capital and energy costs.
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申请公布号 |
US5811629(A) |
申请公布日期 |
1998.09.22 |
申请号 |
US19960710733 |
申请日期 |
1996.09.20 |
申请人 |
RAYTHEON ENGINEERS & CONSTRUCTORS, INC. |
发明人 |
HUBBELL, DOUGLAS S.;RUTTEN, PHILIPPE W. M. |
分类号 |
C07C7/14;(IPC1-7):C07C7/14 |
主分类号 |
C07C7/14 |
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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