GB975324A - Concentrating nitric acid - Google Patents

Concentrating nitric acid

Info

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
Application number
GB43898/60A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cyprus Amax Minerals Co
Original Assignee
American Metal Climax Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by American Metal Climax Inc filed Critical American Metal Climax Inc
Publication of GB975324A publication Critical patent/GB975324A/en
Expired legal-status Critical Current

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.
GB43898/60A 1959-12-24 1960-12-21 Concentrating nitric acid Expired GB975324A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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
BE621315A (en)
FR1282750A (en) 1962-01-27
GB1001615A (en) 1965-08-18
NL259438A (en)
GB975325A (en) 1964-11-18

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