GB621888A - Method of bleaching alginic acid - Google Patents
Method of bleaching alginic acidInfo
- Publication number
- GB621888A GB621888A GB32096/46A GB3209646A GB621888A GB 621888 A GB621888 A GB 621888A GB 32096/46 A GB32096/46 A GB 32096/46A GB 3209646 A GB3209646 A GB 3209646A GB 621888 A GB621888 A GB 621888A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alginic acid
- bleaching
- bleached
- concentration
- dry weight
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0084—Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
Abstract
Alginic acid is bleached with chlorine dioxide in a strongly acid solution, preferably at a pH not greater than 3. The alginic acid may be in a concentration of about 20 per cent based on the dry weight, and the bleaching may be carried out at a temperature between 15 DEG and 50 DEG C.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO621888X | 1945-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB621888A true GB621888A (en) | 1949-04-21 |
Family
ID=19906341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32096/46A Expired GB621888A (en) | 1945-04-19 | 1946-10-29 | Method of bleaching alginic acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB621888A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706673A (en) * | 1951-10-19 | 1955-04-19 | Elmer R Burling | Method of bleaching with chlorine dioxide |
CN104788582A (en) * | 2015-05-20 | 2015-07-22 | 青岛聚大洋藻业集团有限公司 | Method for preparing high-quality sodium alginate from sodium alginate solution processed by chlorine dioxide |
-
1946
- 1946-10-29 GB GB32096/46A patent/GB621888A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706673A (en) * | 1951-10-19 | 1955-04-19 | Elmer R Burling | Method of bleaching with chlorine dioxide |
CN104788582A (en) * | 2015-05-20 | 2015-07-22 | 青岛聚大洋藻业集团有限公司 | Method for preparing high-quality sodium alginate from sodium alginate solution processed by chlorine dioxide |
CN104788582B (en) * | 2015-05-20 | 2017-01-04 | 青岛聚大洋藻业集团有限公司 | Utilize the method that high-quality Algin prepared by chlorine dioxide treatment Algin glue |
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