发明名称 |
Type B aluminosilicates with low Si:Al ratio for detergent use |
摘要 |
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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申请公布号 |
US5374370(A) |
申请公布日期 |
1994.12.20 |
申请号 |
US19930012807 |
申请日期 |
1993.02.02 |
申请人 |
UNILEVER PATENT HOLDINGS B.V. |
发明人 |
BROWN, GRAHAM T.;OSINGA, THEO J.;PARKINGSTON, MICHAEL J.;STEEL, ANDREW T. |
分类号 |
C01B;C01B39/28;C11D;C11D3/12;(IPC1-7):C11D3/12;C11D17/06 |
主分类号 |
C01B |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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