- 专利标题： Zeolite-based adsorbents based on LSX zeolite of controlled outer surface area, process for preparing them and uses thereof
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申请号： US15526130申请日： 2015-11-13
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公开(公告)号： US09919289B2公开(公告)日： 2018-03-20
- 发明人: Ludivine Bouvier , Cécile Lutz , Catherine Laroche , Julien Grandjean , Arnaud Baudot
- 申请人： IFP ENERGIES NOUVELLES , ARKEMA FRANCE
- 申请人地址： FR Rueil-Malmaison FR Colombes
- 专利权人： IFP Energies Nouvelles,Arkema France
- 当前专利权人： IFP Energies Nouvelles,Arkema France
- 当前专利权人地址： FR Rueil-Malmaison FR Colombes
- 代理机构： RatnerPrestia
- 优先权： FR1460953 20141113
- 国际申请： PCT/EP2015/076532 WO 20151113
- 国际公布： WO2016/075281 WO 20160519
- 主分类号： B01J20/18
- IPC分类号： B01J20/18 ; C07C7/13 ; B01J20/28 ; B01J20/30 ; B01D15/18
摘要：
The present invention relates to a zeolite-based adsorbent comprising at least one zeolite of FAU structure of LSX type and comprising barium and/or potassium, in which the outer surface area of said zeolite-based adsorbent, measured by nitrogen adsorption, is between 20 m2·g−1 and 100 m2·g−1, limits inclusive. The present invention also relates to the use of such a zeolite-based adsorbent as an adsorption agent, and also to the process for separating para-xylene from aromatic isomer fractions containing 8 carbon atoms.