FR2067913A5 - Reduction of arylsulphonic acid content in sulphuric - acid - Google Patents

Reduction of arylsulphonic acid content in sulphuric - acid

Info

Publication number
FR2067913A5
FR2067913A5 FR6940092A FR6940092A FR2067913A5 FR 2067913 A5 FR2067913 A5 FR 2067913A5 FR 6940092 A FR6940092 A FR 6940092A FR 6940092 A FR6940092 A FR 6940092A FR 2067913 A5 FR2067913 A5 FR 2067913A5
Authority
FR
France
Prior art keywords
acid
sulphuric
reduction
arylsulphonic
sulphonic acid
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
FR6940092A
Other languages
French (fr)
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.)
Labofina SA
Original Assignee
Labofina SA
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 Labofina SA filed Critical Labofina SA
Priority to FR6940092A priority Critical patent/FR2067913A5/en
Application granted granted Critical
Publication of FR2067913A5 publication Critical patent/FR2067913A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/42—Separation; Purification; Stabilisation; Use of additives
    • C07C303/44—Separation; Purification

Landscapes

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

Abstract

Ammonia or ammonium salt of an acid having an acidity equal to a less than that of the alkyl aryl sulphonic acid (m.w. 300 to 650) to be treated is added to the alkylaryl sulphonic acid in a proportion such that the number of equivalents of NH3 are equal to the number of moles of H2SO4 and 0-30% of the number of moles of alkylaryl sulphonic acid and the NH4HSO4 formed is removed. The neutralisation may be effected at 0-80 degrees C in the presence of 1-75% hydrocarbon a chlorinated hydrocarbon solvent.
FR6940092A 1969-11-21 1969-11-21 Reduction of arylsulphonic acid content in sulphuric - acid Expired FR2067913A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6940092A FR2067913A5 (en) 1969-11-21 1969-11-21 Reduction of arylsulphonic acid content in sulphuric - acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6940092A FR2067913A5 (en) 1969-11-21 1969-11-21 Reduction of arylsulphonic acid content in sulphuric - acid

Publications (1)

Publication Number Publication Date
FR2067913A5 true FR2067913A5 (en) 1971-08-20

Family

ID=9043412

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6940092A Expired FR2067913A5 (en) 1969-11-21 1969-11-21 Reduction of arylsulphonic acid content in sulphuric - acid

Country Status (1)

Country Link
FR (1) FR2067913A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710640A1 (en) * 1993-10-01 1995-04-07 Chevron Chem Sa Process for heat treatment and degassing of sulfonic acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710640A1 (en) * 1993-10-01 1995-04-07 Chevron Chem Sa Process for heat treatment and degassing of sulfonic acid
WO1995009840A1 (en) * 1993-10-01 1995-04-13 Chevron Chemical S.A. Method for the heat treatment and degassing of sulphonic acid

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Legal Events

Date Code Title Description
ST Notification of lapse