GB975324A - Concentrating nitric acid - Google Patents
Concentrating nitric acidInfo
- Publication number
- GB975324A GB975324A GB43898/60A GB4389860A GB975324A GB 975324 A GB975324 A GB 975324A GB 43898/60 A GB43898/60 A GB 43898/60A GB 4389860 A GB4389860 A GB 4389860A GB 975324 A GB975324 A GB 975324A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitric acid
- solution
- vapours
- water
- trays
- 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
- C01B21/44—Concentration
-
- 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
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/083—Compounds containing nitrogen and non-metals and optionally metals containing one or more halogen atoms
- C01B21/084—Compounds containing nitrogen and non-metals and optionally metals containing one or more halogen atoms containing also one or more oxygen atoms, e.g. nitrosyl halides
- C01B21/0842—Halides of nitrogen oxides
- C01B21/0846—Nitrosyl chloride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
975,324. Concentrating nitric acid. AMERICAN METAL CLIMAX Inc. Dec. 21, 1960 [Dec. 24, 1959], No. 43898/60. Drawings to Specification. Heading C1A. A method of concentrating nitric acid in a nitric acid-water solution comprises dissolving potassium nitrate in the solution and removing vapours therefrom until strong nitric acid remains. The effect of the KNO 3 is that the water vapours produced from the solution contain less nitric acid vapour than azeotropic vapours formed from nitric acid in water alone, so that the nitric acid solution remaining has a concentration greater than azeotropic. The vapours may be removed by fractionation in a column containing a series of trays. Weak solution is introduced at a point below the trays and is fractionally distilled so that water vapours are removed overhead and strong nitric acid solution of KNO 3 recovered below the trays. The solution recovered may be further distilled to give vapours which on fractional distillation yield 85-100% nitric acid overhead. The invention is illustrated in detail as part of the process for producing chlorine from the reaction of nitric acid with a chloride of potassium, sodium, hydrogen, or a mixture thereof which is the subject of Specification 975,325.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86200059A | 1959-12-24 | 1959-12-24 | |
US16479262A | 1962-01-08 | 1962-01-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB975324A true GB975324A (en) | 1964-11-18 |
Family
ID=31190634
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB46890/63A Expired GB975325A (en) | 1959-12-24 | 1960-12-21 | Concentrating nitric acid |
GB43898/60A Expired GB975324A (en) | 1959-12-24 | 1960-12-21 | Concentrating nitric acid |
GB26466/62A Expired GB1001615A (en) | 1959-12-24 | 1962-07-10 | Concentrating nitric acid |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB46890/63A Expired GB975325A (en) | 1959-12-24 | 1960-12-21 | Concentrating nitric acid |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26466/62A Expired GB1001615A (en) | 1959-12-24 | 1962-07-10 | Concentrating nitric acid |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE621315A (en) |
FR (1) | FR1282750A (en) |
GB (3) | GB975325A (en) |
NL (1) | NL259438A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668495A (en) * | 1984-07-30 | 1987-05-26 | Union Explosivos Rio Tinto, S.A. | Process for obtaining potassium nitrate from potassium chloride and nitric acid |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108557786B (en) * | 2018-05-17 | 2021-05-11 | 宁夏润夏能源化工有限公司 | Production equipment for producing concentrated nitric acid by magnesium nitrate method |
-
0
- BE BE621315D patent/BE621315A/xx unknown
- NL NL259438D patent/NL259438A/xx unknown
-
1960
- 1960-12-21 GB GB46890/63A patent/GB975325A/en not_active Expired
- 1960-12-21 GB GB43898/60A patent/GB975324A/en not_active Expired
- 1960-12-23 FR FR847880A patent/FR1282750A/en not_active Expired
-
1962
- 1962-07-10 GB GB26466/62A patent/GB1001615A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668495A (en) * | 1984-07-30 | 1987-05-26 | Union Explosivos Rio Tinto, S.A. | Process for obtaining potassium nitrate from potassium chloride and nitric acid |
Also Published As
Publication number | Publication date |
---|---|
NL259438A (en) | |
FR1282750A (en) | 1962-01-27 |
BE621315A (en) | |
GB1001615A (en) | 1965-08-18 |
GB975325A (en) | 1964-11-18 |
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