Water extraction using a directional solvent
US9428404B2 · kind B2 · utility
31Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2012 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Jul 19, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Purified water can be obtained via a continuous or semi-continuous process by mixing a liquid composition (e.g., sea water or produced frac water) including water with a directional solvent to selectively dissolve water from the liquid composition into the directional solvent. The concentrated remainder of the liquid composition (e.g., brine) is removed, and the water is precipitated from the directional solvent and removed in a purified form. The solvent is then reused as the process is repeated in a continuous or semi-continuous operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.