GB621888A - Method of bleaching alginic acid - Google Patents

Method of bleaching alginic acid

Info

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
Application number
GB32096/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EDVARD SUNDVE
Original Assignee
EDVARD SUNDVE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EDVARD SUNDVE filed Critical EDVARD SUNDVE
Publication of GB621888A publication Critical patent/GB621888A/en
Expired legal-status Critical Current

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.
GB32096/46A 1945-04-19 1946-10-29 Method of bleaching alginic acid Expired GB621888A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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