Process for production of polysaccharide and/or monosaccharide by hydrolysis of different polysaccharide
First Claim
1. A process for producing a polysaccharide and/or a monosaccharide, which comprises hydrolyzing a different polysaccharide in the presence of a carbonaceous material having sulfonic acid group therein,wherein the carbonaceous material having sulfonic acid group therein is produced by carbonizing an organic material at a temperature of 300 to 600°
- C. and subsequently sulfonating the resulting products with concentrated or fuming sulfuric acid at a temperature of 50 to 250°
C., andwherein the polysaccharide to be hydrolyzed is a water-insoluble polysaccharide.
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Accused Products
Abstract
The object is to produce a polysaccharide and/or a monosaccharide efficiently by hydrolyzing a different polysaccharide efficiently. The hydrolysis of a polysaccharide is an important means for producing a monosaccharide that can be used as a starting material for the production of ethanol, the solubilization of a water-insoluble polysaccharide, and the production of a useful water-soluble low-polymeric saccharide or the like. For achieving the object, a polysaccharide to be hydrolyzed is reacted with water in the presence of a carbonaceous material having sulfonic acid group therein to cause the hydrolysis of the polysaccharide to be hydrolyzed, thereby producing a other polysaccharide and/or a monosaccharide.
6 Citations
14 Claims
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1. A process for producing a polysaccharide and/or a monosaccharide, which comprises hydrolyzing a different polysaccharide in the presence of a carbonaceous material having sulfonic acid group therein,
wherein the carbonaceous material having sulfonic acid group therein is produced by carbonizing an organic material at a temperature of 300 to 600° - C. and subsequently sulfonating the resulting products with concentrated or fuming sulfuric acid at a temperature of 50 to 250°
C., andwherein the polysaccharide to be hydrolyzed is a water-insoluble polysaccharide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- C. and subsequently sulfonating the resulting products with concentrated or fuming sulfuric acid at a temperature of 50 to 250°
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14. A method for solubilizing cellulose or hemicellulose in water, which comprises reacting water with water-insoluble cellulose or water-insoluble hemicellulose in the presence of a carbonaceous material having sulfonic acid group therein,
wherein the carbonaceous material having sulfonic acid group therein is produced by carbonizing an organic material at a temperature of 300 to 600° - C. and subsequently sulfonating the resulting products with concentrated or fuming sulfuric acid at a temperature of 50 to 250°
C., andwherein the hydrolysis of cellulose is greater than 3.1%.
- C. and subsequently sulfonating the resulting products with concentrated or fuming sulfuric acid at a temperature of 50 to 250°
Specification