Carboxylic acid recovery from magnesium carboxylate mixture
US9422217B2 · kind B2 · utility
7Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2013 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | May 23, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P7/40
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention is directed to a method for recovering carboyxlic acid from an magnesium carboxylate containing aqueous mixture, including the steps of: contacting the aqueous mixture with an acidic ion exchanger, thereby forming a carboxylic acid mixture and an ion exchanger loaded with magnesium ions; contacting the ion exchanger loaded with magnesium ions with a hydrochloric acid solution, thereby forming a magnesium chloride solution; and thermally decomposing the magnesium chloride solution at a temperature of at least 300° C., thereby forming magnesium oxide (MgO) and hydrogen chloride (HCl).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.