Chemistry of inorganic compounds – Zeolite
Patent
1994-09-07
1996-04-30
Bell, Mark L.
Chemistry of inorganic compounds
Zeolite
423710, 423711, C01B 3928
Patent
active
055122663
ABSTRACT:
Aluminosilicates in the form of P type zeolites are used as detergency builders and have a silicon to aluminium ratio not greater than 1.33, preferably above 0.9. These zeolites will usually have a calcium binding capacity of at least 150 mg CaO per gram of anhydrous aluminosilicate. A preferred form of the zeolite P has a silicon to aluminium ratio up to 1.15, and preferably above 0.9, with a tetragonally distorted cubic crystal structure. A process of the preparation of these zeolite P builders is described.
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Brown Graham T.
Osinga Theo J.
Parkingston Michael J.
Steel Andrew T.
Bell Mark L.
Sample David
Unilever Patent Holdings BV
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