GB792200A - A process for manufacturing oxy-cellulose - Google Patents
A process for manufacturing oxy-celluloseInfo
- 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
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.
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) |
-
1955
- 1955-06-29 GB GB18757/55A patent/GB792200A/en not_active Expired
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