Agglomerated zeolitic adsorbents, their method of preapration and their uses

Agglomerated zeolitic adsorbents, their method of preapration and their uses

CN
  • CN 101,495,225 A
  • Filed: 07/13/2007
  • Published: 07/29/2009
  • Est. Priority Date: 07/19/2006
  • Status: Active Application
First Claim
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1. based on the agglomerated zeolitic absorbents of X zeolite crystal and inert binder, wherein the number average diameter of X zeolite crystal is less than or equal to 1.7 μ

  • m, the Si/Al atomic ratio is as 1.15<

    Si/Al≤

    1.5, its at least 90% exchangeable cations position or quilt barium ions separately occupy or are occupied by barium ions and potassium ion, the commutative position that is occupied by potassium is the highest can to account for 1/3 (its optional surplus usually provides by alkali metal ion or except the alkaline-earth metal ions of barium) of the commutative position that occupied by barium+potassium, be characterised in that by 300 ℃

    of vacuum outgas after 16 hours at the Dubinin volume of the described adsorbent of 77 °

    of K nitrogen absorption measurements more than or equal to 0.245cm 3/ g and being characterised in that by being suitable for mechanical strength that size measures less than the Shell S é

    rie SMS1471-74 method of the agglomerate of 1.6mm more than or equal to 2MPa.

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