GB363205A - Improvements in the recovery of sulphuric acid from waste acids produced in the refining of mineral or tar oils - Google Patents

Improvements in the recovery of sulphuric acid from waste acids produced in the refining of mineral or tar oils

Info

Publication number
GB363205A
GB363205A GB317031A GB317031A GB363205A GB 363205 A GB363205 A GB 363205A GB 317031 A GB317031 A GB 317031A GB 317031 A GB317031 A GB 317031A GB 363205 A GB363205 A GB 363205A
Authority
GB
United Kingdom
Prior art keywords
refining
mineral
recovery
sulphuric acid
acids produced
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
GB317031A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB317031A priority Critical patent/GB363205A/en
Publication of GB363205A publication Critical patent/GB363205A/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

Acid sludges obtained in the refining of liquid hydrocarbons such as benzine or benzol are diluted with water and then centrifuged or filtered, the operations being preferably conducted while cooling to 15-30 DEG C. An amount of water equal to or up to double the amount of sludge may be employed. The separation may be promoted by the addition of substances presenting a large surface, such as lignite coke, active carbon, Bentonite, or bleaching earth in quantities of e.g. 3 per cent. The resulting acid may be used without further purification for many industrial purposes.
GB317031A 1931-01-31 1931-01-31 Improvements in the recovery of sulphuric acid from waste acids produced in the refining of mineral or tar oils Expired GB363205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB317031A GB363205A (en) 1931-01-31 1931-01-31 Improvements in the recovery of sulphuric acid from waste acids produced in the refining of mineral or tar oils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB317031A GB363205A (en) 1931-01-31 1931-01-31 Improvements in the recovery of sulphuric acid from waste acids produced in the refining of mineral or tar oils

Publications (1)

Publication Number Publication Date
GB363205A true GB363205A (en) 1931-12-17

Family

ID=9753241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB317031A Expired GB363205A (en) 1931-01-31 1931-01-31 Improvements in the recovery of sulphuric acid from waste acids produced in the refining of mineral or tar oils

Country Status (1)

Country Link
GB (1) GB363205A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553407A (en) * 1946-06-22 1951-05-15 Standard Oil Dev Co Purifying sulfuric acid
EP1628734A1 (en) * 2003-04-17 2006-03-01 Rhodia Inc. Method for purifying spent acid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553407A (en) * 1946-06-22 1951-05-15 Standard Oil Dev Co Purifying sulfuric acid
EP1628734A1 (en) * 2003-04-17 2006-03-01 Rhodia Inc. Method for purifying spent acid
EP1628734A4 (en) * 2003-04-17 2007-11-21 Rhodia Method for purifying spent acid

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