Manufacture of fibrous activated carbons
US4699896A · kind A · utility
26Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1985 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Sep 10, 2005 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F11/124
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of preparing a fibrous activated carbon including the steps of carbonizing and activating cellulose fibre at temperatures between 200.degree. C. and 1000.degree. C. in an inert atmosphere, characterized in that, prior to activation, the fibre is impregnated with an impregnating material comprising, in the form of one or more compounds, boron and at least one alkali metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.