GB856416A - Method and apparatus for electrolytic manufacture of alginic acid and its salts - Google Patents
Method and apparatus for electrolytic manufacture of alginic acid and its saltsInfo
- Publication number
- GB856416A GB856416A GB9018/57A GB901857A GB856416A GB 856416 A GB856416 A GB 856416A GB 9018/57 A GB9018/57 A GB 9018/57A GB 901857 A GB901857 A GB 901857A GB 856416 A GB856416 A GB 856416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alginic acid
- anode
- cathode
- deposited
- stainless steel
- 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)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
856,416. Electrolytic preparation of alginic acid. TAIHO KOGYO KABUSHIKI KAISHA. March 19, 1957 [July 14, 1956], No. 9018/57. Class 41 A process for the electrolytic manufacture of alginic acid and its salts is characterised in that brown seaweeds are treated with an acid so as to transform substantially all the amount of the alginic acid salt contained into a free alginic acid without changing the original form of the seaweeds and that the seaweeds are then treated with alkalis to exhaust free alginic acid, giving an alkali alginate solution, further that the said solution, after removal of the impurities contained in it by filtration is subjected to direct current electrolysis in an electrolytic cell wherein the anode is made either of a metal which becomes the metallic component of a salt of alginic acid to be deposited in it as such whilst an auxiliary pole in the form of a stainless steel wire gauze is interposed in the space between the anode and the cathode. As shown, apparatus for carrying out the invention comprises an anode 4 in the form of a rotable drum, a cathode 3, an auxiliary electrode 2 a membrane 9 of unglazed pottery and scraping means 7. Electrolyte is charged into the cell by inlet 1 and discharged through outlet 10. The anode is of zinc, the cathode is an iron plate, the auxiliary electrode is a wire gauze of stainless steel. Zinc alginate is deposited in the anode and continuously scraped off by scraper 7. If stainless steel is used as the anode, alginic acid is deposited thereon.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP856416X | 1956-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB856416A true GB856416A (en) | 1960-12-14 |
Family
ID=13864438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9018/57A Expired GB856416A (en) | 1956-07-14 | 1957-03-19 | Method and apparatus for electrolytic manufacture of alginic acid and its salts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB856416A (en) |
-
1957
- 1957-03-19 GB GB9018/57A patent/GB856416A/en not_active Expired
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