Process for preparing trialkylammonium dihydrogen phosphates
US11932588B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Nov 10, 2022 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Nov 10, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C209/68
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The disclosure provides a process for preparing solid tri(C1-C4 alkyl)ammonium dihydrogen phosphates such as triethylammonium dihydrogen phosphate, in high yield, and in a free-flowing particulate form. The solid product advantageously possesses less than about 1500 ppm of aprotic organic solvents, less than about 1500 ppm of C1-C5 alkanols, and less than about 500 ppm of water, as determined by Karl Fischer titration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.