β-Hydroxy-β-methylbutyric (HMB) acid purification method
US9598344B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 6, 2013 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Dec 6, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/29
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates generally to the field of chemical synthesis. Specifically, the present invention relates to a method for purification of β-hydroxyl-β-methyl butyrate comprising (1) neutralizing a crude β-hydroxyl-β-methyl butyrate; (2) cooling and crystallizing the crude β-hydroxyl-β-methyl butyrate solution to create a β-hydroxyl-β-methyl butyrate salt; (3) dissolving and acidifying the salt; and (4) extracting the resultant high purity β-hydroxyl-β-methyl butyrate. Additionally, the present invention relates to a method of obtaining high purity β-hydroxyl-β-methyl butyrate at normal temperature and vacuum conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.