GB220413A - Improvements in processes for the purification of burner gases and for obtaining chemically pure sulphuric acid - Google Patents
Improvements in processes for the purification of burner gases and for obtaining chemically pure sulphuric acidInfo
- Publication number
- GB220413A GB220413A GB1540123A GB1540123A GB220413A GB 220413 A GB220413 A GB 220413A GB 1540123 A GB1540123 A GB 1540123A GB 1540123 A GB1540123 A GB 1540123A GB 220413 A GB220413 A GB 220413A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gases
- sulphuric acid
- washer
- passing
- purified
- 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
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/76—Preparation by contact processes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
Burner gases are purified for the production of pure sulphuric acid by separating dust and then passing them through a washing apparatus, such as a tower in which they come in contact with water or dilute sulphuric acid, at such a rate that the vaporization and condensation occurring in the washer is not such as to remove the suspended matter from the gases, but only such as to increase the size of the suspended particles so that they can be readily separated in an electric precipitator. The suspended matter, particularly selenium, is thus obtained in a concentrated form in the precipitator instead of as a sludge in the washer. The sulphur trioxide produced catalytically from the purified gases is separated as sulphuric acid in a similar manner by passing the gases first through the washer and then through the electric precipitator. Reference has been directed by the Comptroller to Specifications 21147/07, 109,106, 119,236, 136,464, and 144,701.ALSO:Burner gases are purified for the production of pure sulphuric acid by separating dust, then passing through a washing apparatus such as a tower in which they come in contact with water or dilute sulphuric acid at such a rate that the vaporization and condensation occurring in the washer is not such as to remove the suspended matter from the gases but only such as to increase the size of the suspended particles so that they can be readily separated in a separate apparatus, preferably an electric precipitator. The suspended matter, particularly selenium is thus obtained in a concentrated form in the precipitator instead of as a sludge in the washer. The sulphur trioxide produced catalytically from the purified gases, is separated as sulphuric acid in a similar manner by passing the gases first through the washer and then through the electric precipitator. Reference has been directed by the Comptroller to Specifications 21147/07, and 109,106, 119,236, 136,464, and 144,701, [all in Class 1 (i), Chemical processes &c.].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1540123A GB220413A (en) | 1923-06-13 | 1923-06-13 | Improvements in processes for the purification of burner gases and for obtaining chemically pure sulphuric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1540123A GB220413A (en) | 1923-06-13 | 1923-06-13 | Improvements in processes for the purification of burner gases and for obtaining chemically pure sulphuric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB220413A true GB220413A (en) | 1924-08-21 |
Family
ID=10058493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1540123A Expired GB220413A (en) | 1923-06-13 | 1923-06-13 | Improvements in processes for the purification of burner gases and for obtaining chemically pure sulphuric acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB220413A (en) |
-
1923
- 1923-06-13 GB GB1540123A patent/GB220413A/en not_active Expired
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