Method of producing sugar liquid
US-2017275663-A1 · Sep 28, 2017 · US
Method of producing sugar alcohol
US10487066B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10487066-B2 |
| Application number | US-201715999598-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 16, 2017 |
| Priority date | Feb 17, 2016 |
| Publication date | Nov 26, 2019 |
| Grant date | Nov 26, 2019 |
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- Title
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Abstract
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In the present invention, a sugar alcohol can be efficiently produced from a cellulose-containing biomass by carrying out a step (1) of filtering an aqueous sugar solution, which is obtained by hydrolysis of a cellulose-containing biomass, by passing the solution through a separation membrane having a molecular cut-off of 300-800 so as to remove catalyst poisons to the non-permeate side and collecting a sugar solution from the permeate side, and a step (2) of subjecting the sugar solution obtained in step (1) to a hydrogenation reaction in the presence of a metal catalyst.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of producing a sugar alcohol from a cellulose-containing biomass as a raw material, comprising: step (1): a step of filtering a sugar aqueous solution obtained by hydrolysis of the cellulose-containing biomass through a separation membrane having a molecular weight cut-off of 300 to 500 to remove a catalyst poison to a non-permeation side and collecting a sugar solution from a permeation side; and step (2): a step of subjecting the sugar solution obtained in the step (1) to a hydrogenation reaction in the presence of a metal catalyst. 2. The method according to claim 1 , wherein the metal catalyst in the step (2) is a ruthenium catalyst or a Raney nickel catalyst. 3. The method according to claim 1 , wherein the sugar alcohol comprises sorbitol and/or xylitol as a main component. 4. A method of producing an anhydrous sugar alcohol, comprising a step of producing a sugar alcohol by the method according to claim 1 , and a step of subjecting the sugar alcohol to a dehydration reaction. 5. The method according to claim 4 , wherein the anhydrous sugar alcohol comprises a sorbitan and/or a xylitan as a main component. 6. A method of producing an anhydrous sugar alcohol ester, comprising a step of producing an anhydrous sugar alcohol by the method according to claim 4 , and a step of subjecting the anhydrous sugar alcohol to a condensation reaction with a saturated or unsaturated fatty acid. 7. The method according to claim 6 , wherein the anhydrous sugar alcohol ester comprises a sorbitan ester and/or a xylitan ester as a main component.
Assignees
Inventors
Classifications
with hydrogen or hydrogen-containing gases · CPC title
Ultrafiltration · CPC title
Polyhydroxylic acyclic alcohols · CPC title
- C07D307/20Primary
Oxygen atoms · CPC title
Hexahydroxylic alcohols · CPC title
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- What does patent US10487066B2 cover?
- In the present invention, a sugar alcohol can be efficiently produced from a cellulose-containing biomass by carrying out a step (1) of filtering an aqueous sugar solution, which is obtained by hydrolysis of a cellulose-containing biomass, by passing the solution through a separation membrane having a molecular cut-off of 300-800 so as to remove catalyst poisons to the non-permeate side and col…
- Who is the assignee on this patent?
- Toray Industries
- What technology area does this patent fall under?
- Primary CPC classification C07D307/20. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 26 2019 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).