Cation exchanger
US4089816A · kind A · utility
5Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1976 |
| Grant date | May 16, 1978 |
| Priority date | — |
| Expiry date | Sep 14, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/269
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A cation exchanger in paper-like or felt-like form is obtained by making a fibrous sheet from a blend of polyethylene fibers into which sulfonic groups have been introduced with 0.1 to 50% by weight of thermoplastic resin fibers and heating the sheet at the softening temperature of said thermoplastic resin or higher temperatures. This cation exchanger is useful in softening or desalination of raw water, separation and recovery of various metals, and adsorption of basic dyestuffs and cationic dyestuffs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.