Substantially inert clay product and process for manufacture
US6020282A · kind A · utility
8Cited by
4References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1997 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Sep 8, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/3236
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A substantially dust-free, inert absorbent derived from clay is described. Raw clay having strong surface acidity sites is combined with a metal salt, then heat treated to produce vitrified clay granules suitable as a carrier for labile chemical or biological materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.