GB378464A - Improvements in or relating to the recovery of sulphur dioxide from gases containingthe same - Google Patents
Improvements in or relating to the recovery of sulphur dioxide from gases containingthe sameInfo
- Publication number
- GB378464A GB378464A GB1402631A GB1402631A GB378464A GB 378464 A GB378464 A GB 378464A GB 1402631 A GB1402631 A GB 1402631A GB 1402631 A GB1402631 A GB 1402631A GB 378464 A GB378464 A GB 378464A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphur dioxide
- gases
- relating
- recovery
- solution
- 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
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/60—Isolation of sulfur dioxide from gases
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
Sulphur dioxide is recovered from gases by treating them with an aqueous solution of an alkali hydroxide and/or alkali sulphite, the solution also containing a substance giving rise to an acidity which increases with increasing temperature but not giving rise to a permanent precipitate under the conditions of working, and thereafter subjecting the used solvent to heating with or without reduction of pressure. Aluminium or chromium chlorides are suitable substances. Ammonium chloride is unsuitable. According to an example, sulphur dioxide is absorbed in an aqueous solution of sodium sulphite and aluminium chloride at 20 DEG C. and is recovered by heating the solution to 100 DEG C. The Provisional Specification describes also the use of ferric chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1402631A GB378464A (en) | 1931-05-12 | 1931-05-12 | Improvements in or relating to the recovery of sulphur dioxide from gases containingthe same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1402631A GB378464A (en) | 1931-05-12 | 1931-05-12 | Improvements in or relating to the recovery of sulphur dioxide from gases containingthe same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB378464A true GB378464A (en) | 1932-08-12 |
Family
ID=10033630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1402631A Expired GB378464A (en) | 1931-05-12 | 1931-05-12 | Improvements in or relating to the recovery of sulphur dioxide from gases containingthe same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB378464A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3959441A (en) * | 1973-04-09 | 1976-05-25 | Kobe Steel, Ltd. | Desulfurization process |
| US4091075A (en) * | 1975-01-31 | 1978-05-23 | American Electronic Laboratories, Inc. | Method for removing sulfur dioxide from flue gases |
-
1931
- 1931-05-12 GB GB1402631A patent/GB378464A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3959441A (en) * | 1973-04-09 | 1976-05-25 | Kobe Steel, Ltd. | Desulfurization process |
| US4091075A (en) * | 1975-01-31 | 1978-05-23 | American Electronic Laboratories, Inc. | Method for removing sulfur dioxide from flue gases |
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