Method of removing scale-forming substances from hot water system
US4045338A · kind A · utility
8Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1976 |
| Grant date | Aug 30, 1977 |
| Priority date | — |
| Expiry date | Jun 30, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F11/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is a filter which comprises a porous support covered by carbonaceous fibers having a carbon content of at least 85%, wherein the individual fibers have a length in the range of from 0.1 to 5 mm and a diameter in the range of from 1 to 50 .mu. and acidic groups in a concentration of at least 0.01 meq/g on their surface. The filter is particularly useful for removing substances from water in a supply system for a steam generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.