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US 5,132,260 AGranted
Zeolite granules with zeolitic binder
AssigneeCeca S.A.
InventorDominique Plee
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Abstract
A process for obtaining zeolite agglomerates for molecular sieves by forming a paste from a zeolite powder, a siliceous earth, and a sodium aluminate solution, shaping the paste into agglomerates, aging the agglomerates under ambient conditions, heat-treating, and then calcining the agglomerates and the resultant agglomerates.
Claims8
A process for obtaining a zeolite agglomerate with zeolitized binder, comprising the following steps:
- (a) forming a paste of a zeolite powder with a siliceous earth and an aqueous solution formed by dissolving hydrated alumina in the presence of sodium hydroxide;
- (b) forming the paste into an agglomerate;
- (c) aging the agglomerate at room temperature;
- thermally treating the agglomerate between 50.degree. and 100.degree. C.;
- and
- (e) calcining the agglomerate between 450.degree. and 600.degree. C.
3 more elements
Dependencies are inferred from the claim text.