Purification process for hydrolysable organic solvent
US10913058B2 · kind B2 · utility
1Cited by
5References
5Claims
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Key dates
| Filing date | Dec 16, 2016 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Jan 8, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods for the removal of ionic contaminants from hydrolysable organic solvent by ion exchange resins are described. A mixed bed of ion exchange resin with cationic ion exchange resin and weak-base anionic ion exchange resin is used in such methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.