CS560390A2 - Method of alpha-naphthalenesulphonic acid's hydrolysis in naphthalenesulphonation mixture - Google Patents

Method of alpha-naphthalenesulphonic acid's hydrolysis in naphthalenesulphonation mixture

Info

Publication number
CS560390A2
CS560390A2 CS905603A CS560390A CS560390A2 CS 560390 A2 CS560390 A2 CS 560390A2 CS 905603 A CS905603 A CS 905603A CS 560390 A CS560390 A CS 560390A CS 560390 A2 CS560390 A2 CS 560390A2
Authority
CS
Czechoslovakia
Prior art keywords
naphthalenesulphonation
hydrolysis
alpha
mixture
naphthalenesulphonic acid
Prior art date
Application number
CS905603A
Other languages
Czech (cs)
Inventor
Siegfried Dr Bildstein
Joachim Dr Heck
Dieter Dr Schmid
Klaus Dr Schmiedel
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 CS560390A2 publication Critical patent/CS560390A2/en

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)
  • Pinball Game Machines (AREA)
CS905603A 1989-11-14 1990-11-13 Method of alpha-naphthalenesulphonic acid's hydrolysis in naphthalenesulphonation mixture CS560390A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893937748 DE3937748A1 (en) 1989-11-14 1989-11-14 METHOD FOR THE HYDROLYSIS OF (ALPHA) -NAPHTALINE SULPHONIC ACID IN A NAHPTALIN-SULPHONING MIXTURE

Publications (1)

Publication Number Publication Date
CS560390A2 true CS560390A2 (en) 1991-09-15

Family

ID=6393442

Family Applications (1)

Application Number Title Priority Date Filing Date
CS905603A CS560390A2 (en) 1989-11-14 1990-11-13 Method of alpha-naphthalenesulphonic acid's hydrolysis in naphthalenesulphonation mixture

Country Status (6)

Country Link
EP (1) EP0500660A1 (en)
JP (1) JPH05501412A (en)
CN (1) CN1052476A (en)
CS (1) CS560390A2 (en)
DE (1) DE3937748A1 (en)
WO (1) WO1991007383A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102746195A (en) * 2011-04-27 2012-10-24 江苏尼高科技有限公司 Method for improving sulfonation process of naphthalene-based water reducer
CN104628607B (en) * 2015-02-16 2016-05-25 曲靖众一合成化工有限公司 A kind of α-naphthalenesulfonicacid continuous pressure method for hydrolysis and device thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1332203A (en) * 1917-07-06 1920-03-02 Louis M Dennis Method of sulfonation of hydrocarbons of the aromatic series
US1922813A (en) * 1932-09-15 1933-08-15 Nat Aniline & Chem Co Inc 2-naphthalenemonosulphonic acid
CH502424A (en) * 1968-05-17 1971-01-31 Ciba Geigy Ag Process for the preparation of monoazo dyes

Also Published As

Publication number Publication date
WO1991007383A1 (en) 1991-05-30
CN1052476A (en) 1991-06-26
EP0500660A1 (en) 1992-09-02
DE3937748A1 (en) 1991-05-16
JPH05501412A (en) 1993-03-18

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