GB1262756A - Process for producing nitric acid - Google Patents

Process for producing nitric acid

Info

Publication number
GB1262756A
GB1262756A GB2764269A GB2764269A GB1262756A GB 1262756 A GB1262756 A GB 1262756A GB 2764269 A GB2764269 A GB 2764269A GB 2764269 A GB2764269 A GB 2764269A GB 1262756 A GB1262756 A GB 1262756A
Authority
GB
United Kingdom
Prior art keywords
nitric acid
zone
distillation
withdrawing
feeding
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
GB2764269A
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of GB1262756A publication Critical patent/GB1262756A/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
    • C01B21/46—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
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,262,756. Distillation of nitric acid. SUMITOMO CHEMICAL CO. Ltd. 30 May, 1969 [31 May, 1968], No. 27642/69. Heading BIB. [Also in Division Cl] Nitric acid of concentration more than 97% by wt. and substantially free from N 2 O 4 is produced by feeding 80-90% nitric acid into distillation zone 8, feeding nitric acid of greater than 97% and containing 20-30% by wt. of N 2 O 4 into the upper part of stripping zone 7 and passing the vapour from the distillation zone 8, via chimney 25, into the lower part of zone 7, withdrawing nitric acid of concentration greater than 97% by wt. and free from N 2 O 4 from zone 7 via pipe 11, and withdrawing 68-72% nitric acid from zone 8 via pipe 23. Nitric acid at the bottom of zone 7 may be passed into zone 8 via pipes 18 and 19. The stripping-distillation-tower may be operated at 1-3 atmospheres and is heated via steam pipes 10 and 19.
GB2764269A 1968-05-31 1969-05-30 Process for producing nitric acid Expired GB1262756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3744468 1968-05-31

Publications (1)

Publication Number Publication Date
GB1262756A true GB1262756A (en) 1972-02-09

Family

ID=12497663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2764269A Expired GB1262756A (en) 1968-05-31 1969-05-30 Process for producing nitric acid

Country Status (6)

Country Link
BE (1) BE733837A (en)
BR (1) BR6909284D0 (en)
DE (1) DE1926435A1 (en)
FR (1) FR2011503A1 (en)
GB (1) GB1262756A (en)
NL (1) NL6908250A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111661828A (en) * 2020-05-25 2020-09-15 烟台远东精细化工有限公司 Preparation method of high-purity reagent nitric acid
CN113493192A (en) * 2021-08-09 2021-10-12 联仕(昆山)化学材料有限公司 Production process of electronic-grade nitric acid

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA713207B (en) * 1970-05-27 1972-03-29 Sumitomo Chemical Co Method for producing concentrated nitric acid
IT1027882B (en) * 1974-12-20 1978-12-20 Sir Soc Italiana Resine Spa PROCEDURE FOR THE PRODUCTION OF ACITO NITRIC
IT1030938B (en) * 1974-12-20 1979-04-10 Sir Soc Italiana Resine Spa IMPROVEMENTS IN PROCEDURES FOR THE PREPARATION OF CONCETRATED NITRIC ACID

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111661828A (en) * 2020-05-25 2020-09-15 烟台远东精细化工有限公司 Preparation method of high-purity reagent nitric acid
CN111661828B (en) * 2020-05-25 2023-07-11 烟台远东精细化工有限公司 Preparation method of high-purity reagent nitric acid
CN113493192A (en) * 2021-08-09 2021-10-12 联仕(昆山)化学材料有限公司 Production process of electronic-grade nitric acid
CN113493192B (en) * 2021-08-09 2022-07-29 联仕(昆山)化学材料有限公司 Production process of electronic-grade nitric acid

Also Published As

Publication number Publication date
BE733837A (en) 1969-11-03
NL6908250A (en) 1969-12-02
BR6909284D0 (en) 1973-01-02
DE1926435A1 (en) 1969-12-04
FR2011503A1 (en) 1970-03-06

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