Method for manufacturing alkali metal or alkaline-earth metal formate
US6492551B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/412
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for manufacturing alkali metal or alkaline-earth metal formate, starting from a formate anion comprises at least the following sequential steps: A) conversion of a solid anion exchanger to formate form by feeding into it a solution containing a formate anion, B) exchanging the formate anion in the anion exchanger for a replacing anion by feeding into it an alkali metal or alkaline-earth metal salt solution of this replacing anion, C) recovering the alkali metal or alkaline-earth metal formate solution eluted from the anion exchanger during the exchange of the formate anion. The anion exchanger is converted to formate form by feeding into it a sodium formate solution, a formic acid solution or a solution which contains both sodium formate and formic acid. The method can be used for production of potassium formate or calcium formate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.