GB475120A - Improvements in or relating to the production of sulphuric acid - Google Patents
Improvements in or relating to the production of sulphuric acidInfo
- Publication number
- GB475120A GB475120A GB13603/36A GB1360336A GB475120A GB 475120 A GB475120 A GB 475120A GB 13603/36 A GB13603/36 A GB 13603/36A GB 1360336 A GB1360336 A GB 1360336A GB 475120 A GB475120 A GB 475120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- catalysis
- water vapour
- sulphuric acid
- relating
- 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
- C01B17/765—Multi-stage SO3-conversion
Abstract
A gas containing sulphur dioxide, oxygen, and water vapour is subjected to catalysis to convert part of the sulphur dioxide to trioxide, which is then removed as concentrated sulphuric acid by condensation with the whole of the water vapour, the remaining gases being reheated and subjected to further catalysis. In a modification, the water vapour is added after the first stage of catalysis. The inlet and exit temperatures of the first converter may be 440 and 600 DEG C. respectively, and those of the second one 380 and 450 DEG C. The exit gas from the first stage may be cooled slowly to the dew-point of the concentrated acid and then more quickly to 200 DEG C. The degree of conversion in the first stage may be 65 per cent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US475120XA | 1935-05-24 | 1935-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB475120A true GB475120A (en) | 1937-11-15 |
Family
ID=21949387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13603/36A Expired GB475120A (en) | 1935-05-24 | 1936-05-13 | Improvements in or relating to the production of sulphuric acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB475120A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1136988B (en) * | 1960-09-17 | 1962-09-27 | Bayer Ag | Process for the production of sulfuric acid |
| WO2001036324A1 (en) * | 1999-11-01 | 2001-05-25 | Monsanto Company | Method for making sulfur trioxide, sulfuric acid, and oleum from sulfur dioxide |
| CN112441566A (en) * | 2019-08-29 | 2021-03-05 | 中石化南京化工研究院有限公司 | Distributed SO of sulfuric acid device2Transformation method |
-
1936
- 1936-05-13 GB GB13603/36A patent/GB475120A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1136988B (en) * | 1960-09-17 | 1962-09-27 | Bayer Ag | Process for the production of sulfuric acid |
| WO2001036324A1 (en) * | 1999-11-01 | 2001-05-25 | Monsanto Company | Method for making sulfur trioxide, sulfuric acid, and oleum from sulfur dioxide |
| CN112441566A (en) * | 2019-08-29 | 2021-03-05 | 中石化南京化工研究院有限公司 | Distributed SO of sulfuric acid device2Transformation method |
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