Non-chloride containing regenerant composition for a strong acid cation exchange resin of a water softener
US6340712B1 · kind B1 · utility
5Cited by
24References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2000 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Feb 10, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J49/53
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Non-chloride containing regenerant compositions of potassium acetate or potassium formate, at least one surfactant and at least one chelating agent as well as methods for efficient regeneration of water softeners utilizing the regenerant compositions are disclosed. A preferred regenerant composition is a solution of potassium acetate or potassium formate with citric acid and octyl phenol ethoxylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.