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US 5,683,673 AGranted
Process for the manufacture of a zeolite
AssigneeExxon Chemical Patents Inc.
InventorsPhilip Luc Buskens, Luc Roger Marc Martens, Georges Marie Karel Mathys
Life of this patent
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Abstract
In the manufacture of Beta zeolite, good yields result from a high ethene pressure, advantageously accompanied by synthesis gel ageing and low aluminium content.
Claims21
A process for the manufacture of Beta zeolite comprising:
- (a) Providing a Beta Zeolite-forming synthesis mixture;
- and
- (b) Hydrothermally treating said Beta Zeolite-forming synthesis mixture to produce Beta Zeolite;
- wherein at least a portion of the hydrothermal treatment of step (b) is carried out under an ethene-containing atmosphere at a total pressure of at least 20 bar.
1 more element
A process for the manufacture of Beta Zeolite comprising:
- (a) Providing a Beta Zeolite-forming synthesis mixture containing tetraethylammonium cations;
- and
- (b) Hydrothermally treating said Beta Zeolite forming synthesis mixture to produce Beta Zeolite;
- wherein at least a portion of the hydrothermal treatment of step (b) is carried out in the presence 0.1 mole of ethene per mole of tetraethylammonium cation.
1 more element
Dependencies are inferred from the claim text.