GB561293A - Acid recovery process - Google Patents

Acid recovery process

Info

Publication number
GB561293A
GB561293A GB6237/42A GB623742A GB561293A GB 561293 A GB561293 A GB 561293A GB 6237/42 A GB6237/42 A GB 6237/42A GB 623742 A GB623742 A GB 623742A GB 561293 A GB561293 A GB 561293A
Authority
GB
United Kingdom
Prior art keywords
temperature
acid
sulphuric acid
recovery process
acid recovery
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
GB6237/42A
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 GB561293A publication Critical patent/GB561293A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

561,293. Recovering sulphuric acid. SHELL DEVELOPMENT CO. May 8,1942, No. 6237. Convention date, March 29, 1941. Drawings to Specification. [Class 1 (ii)] Sulphuric acid containing organic impurities, such as spent catalyst used in the alkylation of hydrocarbons, is promptly diluted, preferably at low temperature, causing separation of part of the organic matter. The separated acid is concentrated in three stages; firstly at a temperature (120-140‹ C.) below the foaming point, secondly at a temperature (160-185‹ C.) below that at which substantial reaction with the remaining organic contaminants takes place, and finally at the boiling point (e.g. 210-240‹ C.) of acid of the required concentration.
GB6237/42A 1941-03-29 1942-05-08 Acid recovery process Expired GB561293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US561293XA 1941-03-29 1941-03-29

Publications (1)

Publication Number Publication Date
GB561293A true GB561293A (en) 1944-05-15

Family

ID=22002343

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6237/42A Expired GB561293A (en) 1941-03-29 1942-05-08 Acid recovery process

Country Status (1)

Country Link
GB (1) GB561293A (en)

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