Low potassium type 3A zeolite molecular sieve and preparation method thereof

Low potassium type 3A zeolite molecular sieve and preparation method thereof

CN
  • CN 105,800,638 B
  • Filed: 04/16/2013
  • Issued: 05/07/2019
  • Est. Priority Date: 04/16/2012
  • Status: Active Grant
First Claim
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1. a kind of low potassium type 3A molecular sieve, it is characterised in that:

  • 1., under 25 DEG C and a standard atmosphere condition, the low potassium type 3A molecular sieve is to the Selective adsorption of water and to nitrogenThe weight ratio of the Selective adsorption of gas is greater than 80;

    2. weight percent of the low potassium type 3A molecular sieve potassium constituent content according to denominator in terms of not aqueous described in, with it oppositeThe ratio between the balance water suction weight percent of humidity 11% and temperature under the conditions of 25 DEG C is less than 0.457, wherein the balance water suctionThe denominator of weight percent after aqueous in terms of;

    3. the selective absorption feature phase of low potassium type 3A molecular sieve described in and the resulting 3A molecular sieve of hydro-thermal ionic liquid exchange processWhen;

    The weight ratio of potassium element contained by the low potassium type 3A molecular sieve is less than 9.6%.

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