Processes for treating aqueous compositions comprising lithium sulfate and sulfuric acid
US11083978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2017 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Aug 28, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01D15/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure relates to processes for treating an aqueous composition comprising lithium sulfate and sulfuric acid. The processes comprise evaporatively crystallizing the aqueous composition comprising lithium sulfate and sulfuric acid under conditions to obtain crystals of lithium sulfate monohydrate and a lithium sulfate-reduced solution; and optionally separating the crystals of the lithium sulfate monohydrate from the lithium sulfate-reduced solution. The processes optionally further comprise concentrating the lithium sulfate-reduced solution under conditions to obtain an acidic condensate and a concentrate comprising sulfuric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.