GB792200A - A process for manufacturing oxy-cellulose - Google Patents

A process for manufacturing oxy-cellulose

Info

Publication number
GB792200A
GB792200A GB18757/55A GB1875755A GB792200A GB 792200 A GB792200 A GB 792200A GB 18757/55 A GB18757/55 A GB 18757/55A GB 1875755 A GB1875755 A GB 1875755A GB 792200 A GB792200 A GB 792200A
Authority
GB
United Kingdom
Prior art keywords
solution
cellulose
oxycellulose
oxidized
bromide
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
GB18757/55A
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.)
Zellsloff Fabrik Waldhof AG
Original Assignee
Zellsloff Fabrik Waldhof AG
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 Zellsloff Fabrik Waldhof AG filed Critical Zellsloff Fabrik Waldhof AG
Publication of GB792200A publication Critical patent/GB792200A/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
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

A process for the repeated production of oxycellulose comprises oxidizing cellulose at pH 7-11, preferably pH 8-10, with an aqueous solution of a bromide and a hypochlorite (yielding hypobromite), preferably the sodium salts, and then regenerating the used solution in two steps for further use, by first reducing the bromate formed and then oxidizing the resultant solution, this oxidized solution being then used for the oxidation of more cellulose. The bromate in the used solution may suitably be reduced to bromine in the presence of the contained bromide, by a mineral acid such as sulphuric acid or by sulphur dioxide. Caustic alkali may then be added and the solution oxidized with chlorine gas to the desired constitution. The cations present in the solution should be all of the same species, preferably sodium. The oxycellulose obtained is said to be suitable for use as chromatography paper.
GB18757/55A 1954-07-09 1955-06-29 A process for manufacturing oxy-cellulose Expired GB792200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE792200X 1954-07-09

Publications (1)

Publication Number Publication Date
GB792200A true GB792200A (en) 1958-03-19

Family

ID=6706262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18757/55A Expired GB792200A (en) 1954-07-09 1955-06-29 A process for manufacturing oxy-cellulose

Country Status (1)

Country Link
GB (1) GB792200A (en)

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