Invention Grant
- Patent Title: Process and device for simulated-countercurrent chromatographic separation for the production of metaxylene with high yield
- Patent Title (中): 用于生产高产率的间二甲苯的模拟逆流色谱分离方法和装置
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Application No.: US14095404Application Date: 2013-12-03
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Publication No.: US09447001B2Publication Date: 2016-09-20
- Inventor: Pascal Etienne , Philibert Leflaive , Damien Leinekugel Le Cocq , Catherine Laroche
- Applicant: IFP Energies nouvelles
- Applicant Address: FR Rueil-Malmaison
- Assignee: IFP Energies nouvelles
- Current Assignee: IFP Energies nouvelles
- Current Assignee Address: FR Rueil-Malmaison
- Agency: Millen, White, Zelano and Branigan, P.C.
- Priority: FR1203278 20121203
- Main IPC: C07C7/12
- IPC: C07C7/12 ; C07C7/13 ; B01D15/18 ; B01J20/18 ; B01J20/28
Abstract:
This invention describes a process for separation of xylenes for the purpose of the production of high-purity metaxylene, a simulated countercurrent process using at least one adsorber with a limited cumulative total level (Hcu) of adsorbent at a surface velocity (Vsl) that is less than 2 cm/s.
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