Sulfur dioxide absorbent is an ionic liquid including a salt of a diamine compound that is substituted with a hydroxyl group
US10926213B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Jun 27, 2019 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Jun 27, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sulfur dioxide absorbent that is an ionic liquid including a solvent; and a salt of a diamine compound that is substituted with a hydroxyl group and has a chemical formula 1 to 3 below dissolved in the solvent:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.