Method for separating ions from liquids
US5061376A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1990 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Aug 10, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/4604
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and apparatus are disclosed for separating ions from a liquid through use of static fields generated by permanently polarized members such as electrets which cooperate with membranes that act as mechanical inhibitors in encouraging positive ions to remain with a positive region of the apparatus and negative ions to remain within a negative region of the apparatus, thereby leaving a relatively ion-free effluent in a neutral region of the apparatus. The ions are separated through static electrical fields, which are permanently generated by the polarized material. The separation is enhanced by pressurizing the liquid above ambient to a certain optimum value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.