FR2366220A1 - Procede de regeneration d'acide sulfurique - Google Patents

Procede de regeneration d'acide sulfurique

Info

Publication number
FR2366220A1
FR2366220A1 FR7722530A FR7722530A FR2366220A1 FR 2366220 A1 FR2366220 A1 FR 2366220A1 FR 7722530 A FR7722530 A FR 7722530A FR 7722530 A FR7722530 A FR 7722530A FR 2366220 A1 FR2366220 A1 FR 2366220A1
Authority
FR
France
Prior art keywords
regeneration process
sulfuric acid
acid
acid regeneration
vapors
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.)
Withdrawn
Application number
FR7722530A
Other languages
English (en)
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Publication of FR2366220A1 publication Critical patent/FR2366220A1/fr
Withdrawn legal-status Critical Current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
    • C01B17/905—Removal of organic impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Procédé de régénération d'acide sulfurique. 1. On concentre l'acide par échange de chaleur indirect 2 avec les vapeurs de la deuxième étape. 2. L'acide ainsi concentré circule à contre-courant 11 avec un mélange de vapeurs d'eau et d'acide. 3. Echange de chaleur direct avec vapeur d'eau surchauffée 12. Les impuretés organiques peuvent être détruites par un oxydant 16, 17, les sels précipités par refroidissement 7.
FR7722530A 1976-07-22 1977-07-22 Procede de regeneration d'acide sulfurique Withdrawn FR2366220A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762632989 DE2632989A1 (de) 1976-07-22 1976-07-22 Verfahren zum regenerieren von schwefelsaeure

Publications (1)

Publication Number Publication Date
FR2366220A1 true FR2366220A1 (fr) 1978-04-28

Family

ID=5983671

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7722530A Withdrawn FR2366220A1 (fr) 1976-07-22 1977-07-22 Procede de regeneration d'acide sulfurique

Country Status (9)

Country Link
US (1) US4157381A (fr)
JP (1) JPS5312795A (fr)
BE (1) BE857042A (fr)
CA (1) CA1086476A (fr)
DE (1) DE2632989A1 (fr)
FR (1) FR2366220A1 (fr)
GB (1) GB1589732A (fr)
IT (1) IT1081296B (fr)
NL (1) NL7707924A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493823A1 (fr) * 1980-11-13 1982-05-14 Ugine Kuhlmann Purification des acides sulfuriques residuaires provenant de la synthese des alcools
US4510445A (en) * 1981-11-02 1985-04-09 Joseph Kvaternik Miniature circuit processing devices and matrix test heads for use therein
GB2110681B (en) * 1981-11-25 1985-08-07 Exxon Research Engineering Co Process for treating spent sulfuric acid streams from the olefin hydration reaction
US4406760A (en) * 1981-11-25 1983-09-27 Exxon Research & Engineering Co. Electrolytic process for treating sulfuric acid streams
SE464299B (sv) * 1988-11-16 1991-04-08 Boliden Contech Ab Foerfarande foer avfaergning av svavelsyra framstaelld enligt kontaktmetoden
US5114699A (en) * 1989-04-12 1992-05-19 Freeport-Mcmoran Resource Partners Spent alkylation acid treatment process
DE3927751A1 (de) * 1989-08-23 1991-02-28 Bayer Ag Verfahren zum konzentrieren metallsulfathaltiger schwefelsaeure
DE3935892C2 (de) * 1989-10-27 1994-08-25 Metallgesellschaft Ag Verfahren und Vorrichtung zum Konzentrieren einer Schwefelsäure und Wasser enthaltenden Flüssigkeit
US5275701A (en) * 1993-03-15 1994-01-04 Air Products And Chemicals, Inc. Process for purification and concentration of sulfuric acid
ES2105969B1 (es) * 1995-07-14 1998-07-01 Gen Quimica S A Procedimiento para la recuperacion de acido sulfurico a partir de corrientes residuales de sulfurico de mediana concentracion contaminadas con materia organica.
DE102005049084A1 (de) * 2005-10-13 2007-04-26 Wacker Chemie Ag Verfahren zur Regenerierung von Schwefelsäure
JP2013095640A (ja) * 2011-11-01 2013-05-20 Mitsubishi Gas Chemical Co Inc 有機物を含有する硫酸を連続的に再生する方法
IL236365A0 (en) * 2014-12-21 2015-04-30 Melodea Ltd Recycling of acid from acid-rich aqueous solutions
WO2022101353A1 (fr) * 2020-11-11 2022-05-19 Basf Se Procédé de concentration d'acide sulfurique dilué

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB441452A (en) * 1934-04-12 1936-01-20 Du Pont Improvements in and relating to the purification of sulphuric acid
GB512907A (en) * 1938-03-18 1939-09-28 Nicolay Titlestad Improvements relating to the concentration and decolorization of denitrated spent sulphuric acid
DE1233368B (de) * 1962-08-13 1967-02-02 Heraeus Schott Quarzschmelze Verfahren zur kontinuierlichen Destillation von Schwefelsaeure in Apparaturen aus keramischen Werkstoffen
DE2330281A1 (de) * 1973-06-14 1975-01-09 Hoechst Ag Verfahren zur regenerierung von schwefelsaeure
DE2352701A1 (de) * 1973-10-20 1975-06-12 Hoechst Ag Verfahren zum aufkonzentrieren salzhaltiger, verduennter schwefelsaeure

Also Published As

Publication number Publication date
US4157381A (en) 1979-06-05
NL7707924A (nl) 1978-01-24
CA1086476A (fr) 1980-09-30
DE2632989A1 (de) 1978-02-02
IT1081296B (it) 1985-05-16
JPS5312795A (en) 1978-02-04
GB1589732A (en) 1981-05-20
BE857042A (fr) 1978-01-23

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Legal Events

Date Code Title Description
ST Notification of lapse