GB1080741A - Mixing process for nitric and sulphuric acids - Google Patents

Mixing process for nitric and sulphuric acids

Info

Publication number
GB1080741A
GB1080741A GB88164A GB88164A GB1080741A GB 1080741 A GB1080741 A GB 1080741A GB 88164 A GB88164 A GB 88164A GB 88164 A GB88164 A GB 88164A GB 1080741 A GB1080741 A GB 1080741A
Authority
GB
United Kingdom
Prior art keywords
acids
heat exchanger
acid
h2so4
mixed
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
GB88164A
Inventor
Michael Edward Brogden
George Milnes
Harry Pinkerton
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB88164A priority Critical patent/GB1080741A/en
Publication of GB1080741A publication Critical patent/GB1080741A/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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B43/00—Formation or introduction of functional groups containing nitrogen
    • C07B43/02—Formation or introduction of functional groups containing nitrogen of nitro or nitroso groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A mixture of concentrated H2SO4 and HNO3 is obtained by feeding separate streams of HNO3 and H2SO4 or oleum into a stream of the mixed acids circulating through a heat exchanger. 4-10 parts of the mixed acid per part by wt. of the total incoming acids may be recirculated. Product is withdrawn from the circuit after the heat exchanger, and acid fumes may be drawn off and passed into an absorption column in the H2SO4 feed line.ALSO:A continuous discharge mixing apparatus comprises a circuit (including a heat exchanger and a centrifugal pump) into which separate streams of sulphuric and nitric acids are metered and from which the mixed acid is removed. 4-10 parts of the mixed acid per part by wt. of the total incoming acids may be recirculated. The mixed acid is withdrawn after the heat exchanger, and acid fumes may be drawn off and passed into an absorption column in the sulphuric acid feed line.
GB88164A 1964-01-08 1964-01-08 Mixing process for nitric and sulphuric acids Expired GB1080741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB88164A GB1080741A (en) 1964-01-08 1964-01-08 Mixing process for nitric and sulphuric acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB88164A GB1080741A (en) 1964-01-08 1964-01-08 Mixing process for nitric and sulphuric acids

Publications (1)

Publication Number Publication Date
GB1080741A true GB1080741A (en) 1967-08-23

Family

ID=9712121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB88164A Expired GB1080741A (en) 1964-01-08 1964-01-08 Mixing process for nitric and sulphuric acids

Country Status (1)

Country Link
GB (1) GB1080741A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113184815A (en) * 2020-10-29 2021-07-30 江苏方圆芳纶研究院有限公司 Method for preparing nitrated mixed acid by using nitrogen oxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113184815A (en) * 2020-10-29 2021-07-30 江苏方圆芳纶研究院有限公司 Method for preparing nitrated mixed acid by using nitrogen oxide
CN113184815B (en) * 2020-10-29 2023-08-15 江苏方圆芳纶研究院有限公司 Method for preparing nitrified mixed acid by using nitrogen oxides

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