Active carbon fibers and filter adsorption unit for water purification comprising said fibers
US4696742A · kind A · utility
49Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 6, 1986 |
| Grant date | Sep 29, 1987 |
| Priority date | — |
| Expiry date | Jan 6, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/32
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Active carbon fibers derived from acrylic fibers and having a BET specific surface area (SA) of 800 to 2,000 m.sup.2 /g, a pore volume (Vp) to (SA) ratio, i.e., (Vp)/(SA), of from 5.times.10.sup.-4 to 14.5.times.10.sup.-4, and a methylene blue adsorption rate constant of not less than 5.times.10.sup.-1 sec.sup.-1, and a filter adsorption unit for water purification using said active carbon fibers; the unit is useful to remove compounds having a wide range of molecular weights from an aqueous liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.