GB603338A - Improved process of preparing chlorites from chlorine dioxide - Google Patents
Improved process of preparing chlorites from chlorine dioxideInfo
- Publication number
- GB603338A GB603338A GB32673/45A GB3267345A GB603338A GB 603338 A GB603338 A GB 603338A GB 32673/45 A GB32673/45 A GB 32673/45A GB 3267345 A GB3267345 A GB 3267345A GB 603338 A GB603338 A GB 603338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reducing agent
- chlorine dioxide
- ammonia
- employed
- hydrazine
- 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
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/08—Chlorous acid
- C01B11/10—Chlorites
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
In the preparation of chlorites from chlorine dioxide in an alkaline medium in the presence of water and a reducing agent, the reducing agent employed is ammonia, one or more organic or inorganic compounds containing an NH2 radicle, or secondary or tertiary amines, or compounds containing the -CN group. Examples are hydrazine, hydroxylamine, urea, amines, e.g. diethylamine, nitriles, cyanocompounds, e.g. calcium cyanamide. Catalysts consisting of compounds of, say, nickel, manganese, copper and especially silver may be present. Increased or reduced temperatures and pressures may be used. The reducing agent may itself constitute the basic compound, e.g. in the case of calcium cyanamide and ammonia. The latter part of the reaction may proceed under the influence of a stronger reducing agent than the second; thus, ammonia may be employed followed by hydrazine. The chlorine dioxide may be added as a solution, or as a gas diluted with an inert gas, e.g. air. When adding chlorine dioxide to an ammonia solution, its free concentration should not exceed .01 molar. Sodium hydroxide and potassium carbonate are also specified as alkaline substances. Specifications 460,374, 460,375 and 495,289 are referred to.ALSO:In the preparation of chlorites from chlorine dioxide in an alkaline medium in the presence of water and a reducing agent, the reducing agent employed is inter alia, one or more organic compounds containing an -NH2 radicle, or secondary or tertiary amines, or compounds containing the -CN group. Examples are hydrazine, hydroxyclamine, urea, amines, nitriles. The reducing agent itself may constitute the basic compound in which case the chloride of the amine &c. employed, e.g. diethylamine, is obtained. Catalysts consisting of compounds of, say, nickel, manganese, copper and especially silver, may be present. Increased or reduced temperatures and pressures may be used. The latter part of the reaction may proceed under the influence of a stronger reducing agent than the second; thus, ammonia may be employed followed by hydrazine. The chlorine dioxide may be added as a solution, or as a gas diluted with an inert gas, e.g. air. Specifications 460,374, 460,375 and 495,289, [all in Group III], are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL603338X | 1942-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB603338A true GB603338A (en) | 1948-06-14 |
Family
ID=19787856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32673/45A Expired GB603338A (en) | 1942-12-31 | 1945-12-03 | Improved process of preparing chlorites from chlorine dioxide |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB603338A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118062809A (en) * | 2024-04-22 | 2024-05-24 | 山东高密高源化工有限公司 | Preparation method of sodium chlorite |
-
1945
- 1945-12-03 GB GB32673/45A patent/GB603338A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118062809A (en) * | 2024-04-22 | 2024-05-24 | 山东高密高源化工有限公司 | Preparation method of sodium chlorite |
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