GB321728A - Improvements in the manufacture and production of highly concentrated nitric acid - Google Patents
Improvements in the manufacture and production of highly concentrated nitric acidInfo
- Publication number
- GB321728A GB321728A GB1800928A GB1800928A GB321728A GB 321728 A GB321728 A GB 321728A GB 1800928 A GB1800928 A GB 1800928A GB 1800928 A GB1800928 A GB 1800928A GB 321728 A GB321728 A GB 321728A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitric acid
- column
- vapours
- production
- nitrogen
- 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
- C01B21/38—Nitric acid
- C01B21/46—Purification; Separation ; Stabilisation
-
- 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
- C01B21/38—Nitric acid
- C01B21/44—Concentration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
321,728. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). June 21, 1928. Nitric acid.-The production of concentrated nitric acid by the action of oxygen upon liquid or vaporous nitrogen peroxide or other nitrogen oxides in presence of dilute nitric acid is carried out in a fractionating column charged with fillers. Pressures up to about 10 atmospheres may be used. The temperature is regulated so as to be about 20-25‹ C. in the upper part and 100-125‹ C. in the lower part. In the upper part of the column at temperatures of 20-25‹ C. the vapour phase consists mainly of nitrogen peroxide, in the middle parts at temperatures of 25-84‹ C. it consists of a mixture of nitrogen peroxide and nitric acid, at 85-90‹ C. of practically pure nitric acid vapours which may be withdrawn and condensed, and at 90-125‹ C. of nitric acid and water vapour. The nitric acid vapours withdrawn at 88‹ C. may be used to expel nitrogen oxides from already condensed nitric acid. The column may be heated by passing into it, vapours from the nitric acid of lowest vapour pressure and of boiling-point of about 123‹ C. passing from the base of the column. Dilute nitric acid for use in the process may be obtained by absorbing in water the nitrous gases obtaised by the combustion of ammonia.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE357915D BE357915A (en) | 1928-06-21 | ||
| DEI33436D DE483146C (en) | 1928-02-07 | 1928-02-07 | Production of highly concentrated nitric acid |
| GB1800928A GB321728A (en) | 1928-06-21 | 1928-06-21 | Improvements in the manufacture and production of highly concentrated nitric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1800928A GB321728A (en) | 1928-06-21 | 1928-06-21 | Improvements in the manufacture and production of highly concentrated nitric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB321728A true GB321728A (en) | 1929-11-21 |
Family
ID=10105060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1800928A Expired GB321728A (en) | 1928-02-07 | 1928-06-21 | Improvements in the manufacture and production of highly concentrated nitric acid |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE357915A (en) |
| GB (1) | GB321728A (en) |
-
0
- BE BE357915D patent/BE357915A/xx unknown
-
1928
- 1928-06-21 GB GB1800928A patent/GB321728A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE357915A (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB321728A (en) | Improvements in the manufacture and production of highly concentrated nitric acid | |
| GB945939A (en) | Method of producing acrylonitrile of high purity | |
| US1877291A (en) | Continuous method of producing esters from olefins | |
| US2367301A (en) | Production of anhydrous hydrogen chloride | |
| NL84107C (en) | ||
| Rabinovitch et al. | NOTE ON THE PYROLYSIS OF METHYL AND ETHYL CYANIDES | |
| US2043930A (en) | Manufacture of hydrocyanic acid | |
| US1770165A (en) | Method for the production of organic compounds containing oxygen | |
| GB292951A (en) | Improvement in process for the high concentration of nitric acid | |
| GB822863A (en) | Improvements in or relating to a process for the treatment of gases obtained by hydrocarbon pyrolysis | |
| DE181273T1 (en) | METHOD FOR CONCENTRATING AQUEOUS DILUTED SOLUTIONS OF ETHYLENE OXIDE. | |
| SU148043A1 (en) | The method of obtaining nitriles of aliphatic acids | |
| GB337847A (en) | A process for working up oxides of nitrogen | |
| GB509987A (en) | Process for the treatment of mixtures of urea, water, carbon dioxide and ammonia, produced in the course of the manufacture of urea | |
| SU76388A1 (en) | The method of producing nitriles | |
| DE854511C (en) | Process for the conversion, in particular dehydrogenation, of gaseous hydrocarbons | |
| GB1236660A (en) | Preparation of silicon carbide | |
| GB324122A (en) | Improvements in the manufacture and production of hydrogen and phosphoric acid | |
| GB496587A (en) | Improvements in the manufacture and production of oxides of nitrogen | |
| GB672723A (en) | Improvements in or relating to the removal of carbonaceous materials from sulphuric acid | |
| GB455865A (en) | Improvements in and apparatus for the separation of carbon dioxide and/or hydrogen sulphide from ammonia | |
| GB873486A (en) | Process for the production of valuable gaseous hydrocarbons | |
| US1892970A (en) | Production of cyanides of calcium | |
| SU66229A1 (en) | The method of obtaining beta-nitroethanol | |
| GB794559A (en) | Process for the production of nitriles |