GB376322A - Improvements in or relating to the manufacture of dextrins, sugars and other products from cellulosic materials - Google Patents
Improvements in or relating to the manufacture of dextrins, sugars and other products from cellulosic materialsInfo
- Publication number
- GB376322A GB376322A GB714931A GB714931A GB376322A GB 376322 A GB376322 A GB 376322A GB 714931 A GB714931 A GB 714931A GB 714931 A GB714931 A GB 714931A GB 376322 A GB376322 A GB 376322A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- organic diluents
- diluent
- cellulose
- hydrochloric acid
- 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)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Cellulose or cellulosic materials are transformed to conversion products by treatment with volatile acids such as hydrochloric acid in the presence of organic diluents and especially organic diluents which are insoluble or substantially insoluble in water. The primary conversion products are subjected to separate and further hydrolysis after removal of the diluent to produce dextrins &c. Suitable organic diluents include benzol, petroleum ether, ether and methylene chloride. The cellulose may be impregnated with the diluent or with water or dilute hydrochloric acid and then with the diluent and hydrogen chloride is then passed into or through the materials until the desired conversion is attained. The hydrogen chloride may be mixed with vapours of the organic diluents or with an inert gas such as nitrogen or carbon dioxide, or with water vapour. The acid is removed at the end by washing with water or acetone. Specifications 376,323 and 376,372, [Group VI], are referred to.ALSO:Cellulose or cellulosic materials are transformed to conversion products by treatment with volatile acids such as hydrochloric acid in the presence of organic diluents and especially organic diluents which are insoluble or substantially insoluble in water. The primary conversion products are subjected to separate and further hydrolysis after removal of the diluent to produce dextrins, sugars, &c. Suitable organic diluents include benzol, petroleum ether, ether, and methylene chloride. The cellulose may be impregnated with the diluent or with water or dilute hydrochloric acid and then with the diluent and hydrogen chloride is then passed into or through the materials until the desired conversion is attained. The hydrogen chloride may be mixed with vapours of the organic diluents or with an inert gas such as nitrogen or carbon dioxide, or with water vapour. The acid is removed at the end by washing with water or acetone. Specifications 376,323 and 376,372 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB714931A GB376322A (en) | 1931-03-07 | 1931-03-07 | Improvements in or relating to the manufacture of dextrins, sugars and other products from cellulosic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB714931A GB376322A (en) | 1931-03-07 | 1931-03-07 | Improvements in or relating to the manufacture of dextrins, sugars and other products from cellulosic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB376322A true GB376322A (en) | 1932-07-07 |
Family
ID=9827549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB714931A Expired GB376322A (en) | 1931-03-07 | 1931-03-07 | Improvements in or relating to the manufacture of dextrins, sugars and other products from cellulosic materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB376322A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4608245A (en) * | 1985-10-17 | 1986-08-26 | Gaddy James L | Method of separation of sugars and concentrated sulfuric acid |
| US4645658A (en) * | 1985-04-30 | 1987-02-24 | Gaddy James L | Method of recovering hydrochloric acid from a product comprised of sugars and concentrated hydrochloric acid |
-
1931
- 1931-03-07 GB GB714931A patent/GB376322A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4645658A (en) * | 1985-04-30 | 1987-02-24 | Gaddy James L | Method of recovering hydrochloric acid from a product comprised of sugars and concentrated hydrochloric acid |
| US4608245A (en) * | 1985-10-17 | 1986-08-26 | Gaddy James L | Method of separation of sugars and concentrated sulfuric acid |
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