Process and apparatus for obtaining a more concentrated solution of a component using ion exchange beds
US4186174A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1977 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Sep 13, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process and apparatus for obtaining a more concentrated solution of components such as chromium containing anions by the use of ion exchange beds. A solution containing the component to be concentrated is passed through a first bed in which the component is taken up. A second solution containing a component of opposite charge from the first component is passed through the first bed to take up the component from the first bed and then through a second bed capable of taking up the second component from the solution. The second solution is passed from the first bed directly to and through the second bed, and both beds are rinsed following passage of the second solution therethrough by passing a rinse solution through the second bed and then directly to and through the first bed in a direction opposite to the direction in which said second solution passed through the beds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.