Process for extruding crystalline aluminosilicates
AssigneeShell Oil Company
InventorsPatrick Moureaux, Jean P. Darnanville
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Abstract
The present invention relates to a process for preparing a shapable dough which comprises mixing and kneading a silica source, a dealuminated aluminosilicate zeolite source, water and a trialkanolamine containing at least two carbon atoms per alkanolamine moiety, to a shapable dough thus obtained, and to the preparation of extrudates containing dealuminated aluminosilicate zeolites by extruding a shapable dough comprising a silica source, a dealuminated aluminosilicate zeolite source, water and a trialkanolamine and having a total solids content between about 25% by weight and about 75% by weight and a trialkanolamine content between about 0.5% by weight and about 40% by weight, basis on the total solid content of the mixture.
Claims14
A process for preparing a shapable dough which comprises mixing and kneading a silica source, a dealuminated aluminosilicate source, water and a trialkanolamine containing at least two carbon atoms per alkanolamine moiety, thus forming a mixture.
A process for preparing crystalline aluminosilicate extrudates from a shapable dough which comprises mixing and kneading a silica source, a dealuminated aluminosilicate zeolite source, water and a trialkanolamine containing at least two carbon atoms per alkanolamine group to obtain a mixture having a total solids content of from about 25% by weight to about 75% by weight, wherein the trialkanolamine is present in an amount of from about 0.5% by weight to about 40% by weight, basis the total solids content of the mixture, and subsequently extruding the mixture.
Dependencies are inferred from the claim text.