Process for the isolation of 1,2,5,6-hexanetetrol from sorbitol hydrogenolysis reaction mixtures using simulated moving bed chromatography
US9732020B2 · kind B2 · utility
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Key dates
| Filing date | Apr 10, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Apr 10, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/007
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of isolating and purifying 1,2,5,6 hexanetetrol (HTO) from a reaction mixture containing HTO and other byproducts of a hydrogenation reaction of a sugar alcohol and/or a mono- or di-dehydrative product of a sugar alcohol is described. The method involves contacting the mixture comprising HTO and other C1-C6 alcohols and polyols with a resin material adapted for chromatography under conditions where HTO preferentially associates with the resin relative to other components in the mixture, and eluting HTO from said resin with a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.