GB888637A - Improvements in or relating to sodium chlorite and processes of manufacturing the same - Google Patents
Improvements in or relating to sodium chlorite and processes of manufacturing the sameInfo
- Publication number
- GB888637A GB888637A GB8191/60A GB819160A GB888637A GB 888637 A GB888637 A GB 888637A GB 8191/60 A GB8191/60 A GB 8191/60A GB 819160 A GB819160 A GB 819160A GB 888637 A GB888637 A GB 888637A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium chlorite
- solution
- crystals
- sodium
- trihydrate
- 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)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
Sodium chlorite trihydrate crystals are partially dehydrated by means of a hot gas, for example air, inert to the sodium chlorite, preferably in such a manner that the temperature remains below 38 DEG C. The sodium chlorite trihydrate crystals may be produced by cooling a, preferably saturated, sodium chlorite solution to below 38 DEG C., or by evaporating a sodium chlorite solution and crystallizing in one apparatus working at reduced pressures and below 38 DEG C., or by concentrating a solution at reduced pressure and below 38 DEG C., and passing the solution so obtained into a vessel containing a suspension of fine sodium chlorite trihydrate crystals maintained in the form of a fluid bed. The sodium chlorite solution may be prepared by reacting chlorine dioxide with an aqueous solution of sodium peroxide. The partially dehydrated sodium chlorite crystals obtained by the process of the invention are in the form of a core of sodium chlorite trihydrate surrounded by a layer of anhydrous sodium chlorite, and preferably contain 70-90% by weight of NaClO2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR888637X | 1959-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB888637A true GB888637A (en) | 1962-01-31 |
Family
ID=9376863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8191/60A Expired GB888637A (en) | 1959-03-10 | 1960-03-08 | Improvements in or relating to sodium chlorite and processes of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB888637A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044103A (en) | 1973-02-05 | 1977-08-23 | Produits Chimiques Ugine Kuhlmann | Storage-stable sodium chlorite |
-
1960
- 1960-03-08 GB GB8191/60A patent/GB888637A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044103A (en) | 1973-02-05 | 1977-08-23 | Produits Chimiques Ugine Kuhlmann | Storage-stable sodium chlorite |
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