Hydrocarbon and sulfide removal in direct aqueous extraction
US12421137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2023 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Oct 6, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Methods of treating an aqueous source are described herein that include reducing a concentration of sulfide species in a stream obtained from the aqueous source to form an extraction feed and extracting ions from the extraction feed, or a stream obtained from the extraction feed, using direct aqueous extraction. Other methods describe treating an aqueous source by reducing a concentration of organic species in a stream derived from the aqueous source to form an extraction feed and extracting ions from the extraction feed, or a stream derived from the extraction feed, using direct aqueous extraction. The aqueous source can be an aqueous lithium source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.