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GB546670A - Acid recovery process - Google Patents

Acid recovery process

Info

Publication number
GB546670A
GB546670A GB821/41A GB82141A GB546670A GB 546670 A GB546670 A GB 546670A GB 821/41 A GB821/41 A GB 821/41A GB 82141 A GB82141 A GB 82141A GB 546670 A GB546670 A GB 546670A
Authority
GB
United Kingdom
Prior art keywords
acid
impurities
sulphuric
jan
chlorsulphonic
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
GB821/41A
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.)
Shell Development Co
Original Assignee
Shell Development Co
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 Shell Development Co filed Critical Shell Development Co
Publication of GB546670A publication Critical patent/GB546670A/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
    • 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
    • C01B17/46—Compounds containing sulfur, halogen, hydrogen, and oxygen
    • C01B17/466—Chlorosulfonic acid (ClSO3H)

Landscapes

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

Abstract

546,670. Purifying acids. SHELL DEVELOPMENT CO. Jan. 21, 1941, No. 821. Convention date, Jan. 27, 1940. [Class 1 (ii)] Sulphuric and chlorsulphonic acids are purified from organic impurities and obtained in concentrated form by promptly diluting the acid to form 35 per cent. to 60 per cent. after contamination and cooling it during dilution, removing the tarry and like impurities thereby separated, converting the remaining impurities into a readily filterable form and concentrating the acid by feeding it into a quantity of sulphuric or chlorsulphonic acid at a high temperature, removing the separated organic impurities and further concentrating the acid. Specification 460,973, is referred to.
GB821/41A 1940-01-27 1941-01-21 Acid recovery process Expired GB546670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US546670XA 1940-01-27 1940-01-27

Publications (1)

Publication Number Publication Date
GB546670A true GB546670A (en) 1942-07-24

Family

ID=21992696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB821/41A Expired GB546670A (en) 1940-01-27 1941-01-21 Acid recovery process

Country Status (1)

Country Link
GB (1) GB546670A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593128A (en) * 1948-05-06 1952-04-15 California Research Corp Process for sulfuric acid recovery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593128A (en) * 1948-05-06 1952-04-15 California Research Corp Process for sulfuric acid recovery

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