GB672047A - Improvements in the manufacture of chlorine dioxide - Google Patents
Improvements in the manufacture of chlorine dioxideInfo
- Publication number
- GB672047A GB672047A GB2452/50A GB245250A GB672047A GB 672047 A GB672047 A GB 672047A GB 2452/50 A GB2452/50 A GB 2452/50A GB 245250 A GB245250 A GB 245250A GB 672047 A GB672047 A GB 672047A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chlorate
- solution
- reaction
- container
- chloride
- 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
- C01B11/02—Oxides of chlorine
- C01B11/022—Chlorine dioxide (ClO2)
- C01B11/023—Preparation from chlorites or chlorates
- C01B11/025—Preparation from chlorites or chlorates from chlorates without any other reaction reducing agent than chloride ions
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
In the manufacture of chlorine dioxide by reacting alkali or alkaline earth metal chlorates with aqueous mineral acid solution, less acid than the stoichiometrical proportion corresponding to the chlorate is used, the remaining excess chlorate being supplemented by further chlorate and then subjected again to the acid treatment. The residue solution remaining after the reaction may be partially evaporated and the <PICT:0672047/III/1> solution subjected to a chlorate electrolysis to convert the chloride formed in the reaction to chlorate. Alternatively the chloride may be removed from the evaporated residue solution by crystallization and fresh chlorate added. In the drawing, a chlorate solution from a container 1 is fed to a series of reaction vessels 2-7 and reacted with hydrochloric acid from container 8. A current of air is drawn through pipe 9 through the vessels 7 to 2 and out at pipe 14 together with the chlorine dioxide and chlorine produced. The reaction solution is passed from collection vessel 11 to an evaporator 12 and thence dependent on whether the chloride is wholly removed or not to a vessel 15 where fresh chlorate and water is added, or to an electrolysis vessel 19. The solution is recycled via pipes 17 or 21 respectively to the container 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE672047X | 1948-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB672047A true GB672047A (en) | 1952-05-14 |
Family
ID=6590654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2452/50A Expired GB672047A (en) | 1948-10-01 | 1950-01-31 | Improvements in the manufacture of chlorine dioxide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB672047A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3035888A (en) * | 1960-10-31 | 1962-05-22 | Universal Oil Prod Co | Process and apparatus for obtaining a constant head of liquid |
| FR2393761A1 (en) * | 1977-06-08 | 1979-01-05 | Chlorine Eng Corp Ltd | PROCESS FOR PRODUCING CHLORINE PEROXIDE |
| EP0011326A1 (en) * | 1978-11-14 | 1980-05-28 | Metallgesellschaft Ag | Process for preparing chlorine dioxide and optionally chlorine from hydrogen chloride and electrolytically produced alkaline chlorate |
-
1950
- 1950-01-31 GB GB2452/50A patent/GB672047A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3035888A (en) * | 1960-10-31 | 1962-05-22 | Universal Oil Prod Co | Process and apparatus for obtaining a constant head of liquid |
| FR2393761A1 (en) * | 1977-06-08 | 1979-01-05 | Chlorine Eng Corp Ltd | PROCESS FOR PRODUCING CHLORINE PEROXIDE |
| EP0011326A1 (en) * | 1978-11-14 | 1980-05-28 | Metallgesellschaft Ag | Process for preparing chlorine dioxide and optionally chlorine from hydrogen chloride and electrolytically produced alkaline chlorate |
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