Catalyst compositions comprising modified zeolite of Y-type

Catalyst compositions comprising modified zeolite of Y-type

  • CN 1,082,832 C
  • Filed: 08/14/1992
  • Issued: 04/17/2002
  • Est. Priority Date: 08/16/1991
  • Status: Active Grant
First Claim
Patent Images

1. it is that 8~

  • 13 alkaline compound solution is handled overstable zeolite Y or extremely overstable zeolite Y that the preparation method of a modified zeolite of Y-type, this method comprise with pH.

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