GB171684A - Improvements in process for reclaiming sludge acid in petroleum refining - Google Patents

Improvements in process for reclaiming sludge acid in petroleum refining

Info

Publication number
GB171684A
GB171684A GB29763/21A GB2976321A GB171684A GB 171684 A GB171684 A GB 171684A GB 29763/21 A GB29763/21 A GB 29763/21A GB 2976321 A GB2976321 A GB 2976321A GB 171684 A GB171684 A GB 171684A
Authority
GB
United Kingdom
Prior art keywords
acid
steam
sludge
tank
pipe
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
GB29763/21A
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 GB171684A publication Critical patent/GB171684A/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

Abstract

171,684. Simonson, W. H., and Mantius, O. Nov. 19, 1920, [Convention date]. Acids, concentrating.-Sulphuric acid in concentrated form, is prepared from sludge acid obtained in refining petroleum, by diluting the sludge acid to cause separation of hydrocarbons &c. and concentrating the weak acid under reduced pressure in a retort heated by a steam coil. The acid, if not concentrated to 66‹ Be., is brought to this strength for use again, by addition of fuming sulphuric acid. The sludge acid from a tank A is led into a separating tank D in which it is diluted to 28-30‹ Be. by steam or hot water admitted by a perforated pipe E. After settling, the upper layer is withdrawn by a pipe I and the weak acid by a pipe K to a tank L from which it is pumped to an evaporator N heated by a coil R, through which exhaust steam, and afterwards steam at 80-100lb. per sq. in. or other heating medium is passed. The pressure in the evaporator is reduced by a jet condenser W, until the acid boils at 270-290‹ F. After concentration, the acid is passed through a filter T to separate carbonaceous matter.
GB29763/21A 1920-11-19 1921-11-08 Improvements in process for reclaiming sludge acid in petroleum refining Expired GB171684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US171684XA 1920-11-19 1920-11-19

Publications (1)

Publication Number Publication Date
GB171684A true GB171684A (en) 1923-05-08

Family

ID=21781099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29763/21A Expired GB171684A (en) 1920-11-19 1921-11-08 Improvements in process for reclaiming sludge acid in petroleum refining

Country Status (1)

Country Link
GB (1) GB171684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972987A (en) * 1973-12-06 1976-08-03 Hoechst Aktiengesellschaft Process for regenerating sulfuric acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972987A (en) * 1973-12-06 1976-08-03 Hoechst Aktiengesellschaft Process for regenerating sulfuric acid

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