Processes for removing carbon disulfide from symmetrical and asymmetrical sulfide product streams
US11845716B2 · kind B2 · utility
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7References
20Claims
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Key dates
| Filing date | Jun 18, 2020 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | Mar 1, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D277/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Processes for removing carbon disulfide from product streams containing a sulfide compound are performed by contacting the product stream with an alkanolamine and converting the carbon disulfide to a higher boiling point product, thereby reducing or eliminating carbon disulfide from the product stream. Subsequent removal of the higher boiling point product via distillation can lead to a purified sulfide stream with high purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.