发明名称 |
BINDERLESS ZEOLITIC ADSORBENTS, METHODS FOR PRODUCING BINDERLESS ZEOLITIC ADSORBENTS, AND PROCESSES FOR ADSORPTIVE SEPARATION OF PARA-XYLENE FROM MIXED XYLENES USING THE BINDERLESS ZEOLITIC ADSORBENTS |
摘要 |
Binderless BaKX zeolitic adsorbents, methods for their production, and processes for their use in a liquid phase adsorptive separation process are provided. An adsorbent includes a binder-converted zeolite portion formed from x wt% kaolin clay binder and (100-x) wt% unconverted Zeolite X with a silica: alumina molar ratio of 2.5. The kaolin clay binder is in the range of 10 to 20 wt%. Ba and K occupy cationic exchangeable sites within the adsorbent. K is in the range of 0.25 to 0.9% by weight and Ba is greater than 31.6% by weight of the binderless BaKX zeolitic adsorbent. Cornstarch may be added to the Zeolite X and kaolin clay binder to increase adsorbent macro-porosity and pore volume. Productivity of the adsorbent is improved decreasing process operating costs. The mechanical strength of the adsorbent is also improved. |
申请公布号 |
WO2011011190(A3) |
申请公布日期 |
2011.06.16 |
申请号 |
WO2010US41011 |
申请日期 |
2010.07.06 |
申请人 |
UOP LLC;CHENG, LINDA SHI;HURST, JACK E. |
发明人 |
CHENG, LINDA SHI;HURST, JACK E. |
分类号 |
B01J20/18;B01J20/30;C01B39/22;C07C7/13;C07C15/08 |
主分类号 |
B01J20/18 |
代理机构 |
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