Agglomerates based on active charcoal, their process of preparation and their use as adsorption agents
US6277179A · kind A · utility
18Cited by
14References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1999 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Jun 23, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S95/901
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Agglomerates based on active charcoal and on binder exhibit a good resistance to disintegration in a liquid medium as well as an excellent resistance to crushing and an excellent thermostability up to 350.degree. C. They are prepared by mixing active charcoal powder with a pore-protecting agent in gel form and then mixing with a binder, followed by the agglomeration, shaping and curing of the agglomerates obtained. They can be used as adsorption agents for the treatment, for the seperation or the purification of gases, and for the decoloration, purification and deodorization of liquids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.