GB156800A - Process of converting nitrous gases into concentrated nitric acid - Google Patents
Process of converting nitrous gases into concentrated nitric acidInfo
- Publication number
- GB156800A GB156800A GB885/21A GB88521A GB156800A GB 156800 A GB156800 A GB 156800A GB 885/21 A GB885/21 A GB 885/21A GB 88521 A GB88521 A GB 88521A GB 156800 A GB156800 A GB 156800A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitric acid
- acid
- vapours
- nitrous gases
- concentrated nitric
- 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
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/24—Nitric oxide (NO)
- C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
In the preparation of concentrated nitric acid by the absorption of nitrous gases in strong sulphuric acid, the nitro-sulphonic acid thereby produced is decomposed by means of vapours of watery nitric acid. The latter are passed into the bottom of a tower packed with acid-resisting material, down which the nitro-sulphonic acid is allowed to flow, and air may also be introduced to facilitate the evolution of nitrous gases and vapours of concentrated nitric acid. The latter, on condensation, form red fuming nitric acid, while the former are condensed in water and used for decomposing further quantities of nitrosulphonic acid. The nitrogen oxides obtained by passing air through the fuming nitric acid to decolorize it, are similarly employed. The concentration of the denitrated sulphuric acid is 80 per cent. Specifications 6366/08 and 27239/13, [Class 32, Distilling &c.], are referred to. The Specification as open to inspection under Sect. 91 (3) (a) states also that instead of air, a gas which preferably contains oxygen may be employed, together with the vapours of dilute nitric acid, to facilitate the removal of the nitrous oxides and nitric acid. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO156800X | 1915-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB156800A true GB156800A (en) | 1922-05-08 |
Family
ID=19904538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB885/21A Expired GB156800A (en) | 1915-05-22 | 1921-01-07 | Process of converting nitrous gases into concentrated nitric acid |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE300897C (en) |
| FR (1) | FR488899A (en) |
| GB (1) | GB156800A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115417389A (en) * | 2022-10-13 | 2022-12-02 | 成都市科隆化学品有限公司 | Multi-level high-purity nitric acid co-production system and co-production method thereof |
-
0
- DE DENDAT300897D patent/DE300897C/de active Active
-
1916
- 1916-05-09 FR FR488899A patent/FR488899A/en not_active Expired
-
1921
- 1921-01-07 GB GB885/21A patent/GB156800A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115417389A (en) * | 2022-10-13 | 2022-12-02 | 成都市科隆化学品有限公司 | Multi-level high-purity nitric acid co-production system and co-production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE300897C (en) | |
| FR488899A (en) | 1918-11-21 |
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