Processes for manufacturing particles coated with activated lignosulfonate
US6733827B2 · kind B2 · utility
12Cited by
14References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Jan 12, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Processes for forming a filter material are provided. The processes include the steps of coating a filter particle with a lignosulfonate, carbonizing the coating, and activating the coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.