GB311695A - Improvements relating to the saccharification of wood and other cellulosic materials - Google Patents
Improvements relating to the saccharification of wood and other cellulosic materialsInfo
- Publication number
- GB311695A GB311695A GB220529A GB220529A GB311695A GB 311695 A GB311695 A GB 311695A GB 220529 A GB220529 A GB 220529A GB 220529 A GB220529 A GB 220529A GB 311695 A GB311695 A GB 311695A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formic acid
- acid
- wood
- sugars
- distillation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K1/00—Glucose; Glucose-containing syrups
- C13K1/02—Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
311,695. Distilleries des Deux-SÞvres. May 14, 1928, [Convention date]. Glucose.-Completely dried cellulosic material, either pure or mixed with other products, is treated with anhydrous or highly concentrated 'formic acid in the presence of a small quantity of catalyst acids or salts such as sulphuric, hydrochloric, phosphoric, sulphurous, benzenesulphonic or toluenesulphonic acid, or chloride of zinc, calcium or iron or bisulphates, and the formates obtained are hydrolyzed directly in a sufficiently concentrated formic medium, by the progressive addition of a small quantity of water whilst assisting the reaction by stirring and heating. The hydrolysis is completed by boiling the sugars and dextrins in aqueous solution in the presence of a mineral acid, with or without pressure. The cellulose if in the form of wood may be given a preliminary treatment with dilute solutions of mineral acids to convert it more or less thoroughly to hydro-cellulose and convert pentosans into pentoses which may be eliminated and converted into furfurol. Examples are given of the treatment of paper pulp and sawdust. The formic acid is recovered by distillation in the presence of a liquid forming therewith an azeotropic mixture, or by distillation in the presence of an alcohol giving with the formic acid a volatile formate, which is subsequently saponified, or by bringing the formic acid into aqueous solution with the sugars, and extracting it by methodical exhaustion in counter current by means of solvents insoluble or but. slightly soluble in water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB220529A GB311695A (en) | 1929-01-22 | 1929-01-22 | Improvements relating to the saccharification of wood and other cellulosic materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB220529A GB311695A (en) | 1929-01-22 | 1929-01-22 | Improvements relating to the saccharification of wood and other cellulosic materials |
Publications (1)
Publication Number | Publication Date |
---|---|
GB311695A true GB311695A (en) | 1929-12-12 |
Family
ID=1742430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB220529A Expired GB311695A (en) | 1929-01-22 | 1929-01-22 | Improvements relating to the saccharification of wood and other cellulosic materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB311695A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103710471A (en) * | 2012-09-28 | 2014-04-09 | 财团法人工业技术研究院 | Sugar products and methods of making the same |
CN104060000A (en) * | 2013-03-18 | 2014-09-24 | 财团法人工业技术研究院 | Method for separating saccharide |
US9150937B2 (en) | 2013-02-01 | 2015-10-06 | Industrial Technology Research Institute | Method for preparing sugars |
US9695484B2 (en) | 2012-09-28 | 2017-07-04 | Industrial Technology Research Institute | Sugar products and fabrication method thereof |
-
1929
- 1929-01-22 GB GB220529A patent/GB311695A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103710471A (en) * | 2012-09-28 | 2014-04-09 | 财团法人工业技术研究院 | Sugar products and methods of making the same |
US9695484B2 (en) | 2012-09-28 | 2017-07-04 | Industrial Technology Research Institute | Sugar products and fabrication method thereof |
US9150937B2 (en) | 2013-02-01 | 2015-10-06 | Industrial Technology Research Institute | Method for preparing sugars |
CN104060000A (en) * | 2013-03-18 | 2014-09-24 | 财团法人工业技术研究院 | Method for separating saccharide |
TWI476203B (en) * | 2013-03-18 | 2015-03-11 | Ind Tech Res Inst | Method of separating carbohydrate |
US9822420B2 (en) | 2013-03-18 | 2017-11-21 | Industrial Technology Research Institute | Method of separating carbohydrate |
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