GB387569A - Process for regenerating waste sulphuric acid - Google Patents

Process for regenerating waste sulphuric acid

Info

Publication number
GB387569A
GB387569A GB16181/32A GB1618132A GB387569A GB 387569 A GB387569 A GB 387569A GB 16181/32 A GB16181/32 A GB 16181/32A GB 1618132 A GB1618132 A GB 1618132A GB 387569 A GB387569 A GB 387569A
Authority
GB
United Kingdom
Prior art keywords
acid
sulphuric acid
concentrated
nitrogen
waste
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
GB16181/32A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB387569A publication Critical patent/GB387569A/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
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/92—Recovery from acid tar or the like, e.g. alkylation acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

Waste acids obtained in the refining of mineral oils, tar oils, &c. are treated with nitric acid or higher oxides of nitrogen during their concentration in order to recover their sulphuric acid content. The nitric oxide evolved in the process may be converted into nitric acid or higher oxides of nitrogen and returned to the process by absorbing the nitrogen oxides &c. either in the waste acid that is to be concentrated or in a portion of the sulphuric acid that has already been concentrated, and adding this acid to the waste acid to be concentrated.
GB16181/32A 1932-02-25 1932-06-08 Process for regenerating waste sulphuric acid Expired GB387569A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE387569X 1932-02-25

Publications (1)

Publication Number Publication Date
GB387569A true GB387569A (en) 1933-02-09

Family

ID=6371150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16181/32A Expired GB387569A (en) 1932-02-25 1932-06-08 Process for regenerating waste sulphuric acid

Country Status (1)

Country Link
GB (1) GB387569A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493823A1 (en) * 1980-11-13 1982-05-14 Ugine Kuhlmann PURIFICATION OF RESIDUAL SULFURIC ACIDS FROM ALCOHOL SYNTHESIS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493823A1 (en) * 1980-11-13 1982-05-14 Ugine Kuhlmann PURIFICATION OF RESIDUAL SULFURIC ACIDS FROM ALCOHOL SYNTHESIS
EP0052548A1 (en) * 1980-11-13 1982-05-26 Elf Atochem S.A. Purification of residual sulphuric acids from alcoholic synthesis

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