Production apparatus of sugar solution and production system of sugar solution
US-9499783-B2 · Nov 22, 2016 · US
Isoidide manufacture and purification
US10100376B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10100376-B2 |
| Application number | US-201615552684-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2016 |
| Priority date | Feb 24, 2015 |
| Publication date | Oct 16, 2018 |
| Grant date | Oct 16, 2018 |
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Abstract
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Methods are provided for the purification of isoidide. The methods comprise subjecting an at least partially deionized isoidide composition comprising isoidide and other isohexides to chromatographic separation of isoidide from other isohexides, removal of solvent from the isoidide, and crystallization of the isoidide. Isoidide of monomer-grade purity is obtained.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of preparing an isoidide enriched composition comprising, at least partially removing ionic species from an epimerization product comprising isoidide to obtain an at least partially deionized isoidide composition comprising isoidide and other isohexides; and, chromatographically separating the isoidide from other isohexides to obtain a stream enriched in isoidide and a stream enriched in the other isohexides. 2. The method of claim 1 , wherein the chromatographic separation is carried out by contacting the at least partially deionized isoidide composition with a resin comprising strong acid ion exchange resin in the calcium 2 + form; contacting the at least partially deionized isoidide composition comprising isoidide and other isohexides and the resin with a solvent; and, eluting a stream enriched in isoidide and a second stream enriched in the other isohexides. 3. The method according to claim 1 , wherein the amount of ions in the at least partially deionized isoidide composition is below detection limits as determined by inductively coupled plasma atomic emission spectroscopy.
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Classifications
Gas chromatography · CPC title
characterised by the components to be separated · CPC title
Cation-exchange · CPC title
Ortho-condensed systems · CPC title
- C13K13/007Primary
Separation of sugars provided for in subclass C13K (C13K3/00 takes precedence) · CPC title
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- What does patent US10100376B2 cover?
- Methods are provided for the purification of isoidide. The methods comprise subjecting an at least partially deionized isoidide composition comprising isoidide and other isohexides to chromatographic separation of isoidide from other isohexides, removal of solvent from the isoidide, and crystallization of the isoidide. Isoidide of monomer-grade purity is obtained.
- Who is the assignee on this patent?
- Archer Daniels Midland Co
- What technology area does this patent fall under?
- Primary CPC classification C13K13/007. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 16 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).