Zeolite A crystals of uniformly small particle size and the manufacture thereof
US4173622A · kind A · utility
16Cited by
14References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1978 |
| Grant date | Nov 6, 1979 |
| Priority date | — |
| Expiry date | Jan 3, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In the manufacture of zeolite A crystals, characterized by a size in the range of about 1 to about 10 .mu.m (micrometers or microns) the crystal size is controlled to within the range of .+-. 1 .mu.m by seeding a sodium aluminum silicate gel that is free of nucleating particles with a predetermined number of comminuted zeolite A crystals having a number average particle size less than about 0.5 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.