CH151131A - Process for the preparation of a sulfuric acid ester. - Google Patents

Process for the preparation of a sulfuric acid ester.

Info

Publication number
CH151131A
CH151131A CH151131DA CH151131A CH 151131 A CH151131 A CH 151131A CH 151131D A CH151131D A CH 151131DA CH 151131 A CH151131 A CH 151131A
Authority
CH
Switzerland
Prior art keywords
sulfuric acid
acid ester
preparation
degree
sulphonation
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH151131A publication Critical patent/CH151131A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C305/00—Esters of sulfuric acids

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

Description

  

  Verfahren zur Herstellung eines     Schwefels:iureesters.       Es wurde gefunden, dass man einen wert  vollen     Schwefelsäureester    erhält, wenn man       Rizinusölsäure    mit den Additionsprodukten,  welche     Schwefeltrioxyd    mit organischen  Basen bildet, behandelt.  



  Der so hergestellte     Schwefelsäureester    ist  in Wasser sehr leicht löslich. Er zeigt einen       Sulfierungsgrad    von über 85 % und soll als  Hilfsmittel in der Textilindustrie verwendet  werden. (Bestimmung des     Sulfierungsgrades     nach Dr.

   A.     Landolt,        Melliands    Textil  berichte     1928,        pag.    759-763 und 1929,     pag.          ?l.f-?1.5.)     <I>Beispiel:</I>  Zu     ?:00    Teilen wasserfreiem     Pyridin    lässt  man langsam unter Rühren und Kühlen  80 Teile     Chlorsulfonsäure        zutropfen;    dabei  scheidet sich das gebildete     Pyridinsulfo-          trioxyd    teilweise kristallin aus.

   Man lässt  diese dünnbreiige Suspension unter gutem  Rühren bei     3,0-35      langsam zu 10.0     gr        Rizi-          nusölsäure    zufliessen, wobei nur mässige    Temperaturerhöhung     stattfindet,    und hält  dann während einigen     Stunden    bei genann  tem     Temperaturintervall.    Die Reaktionsflüs  sigkeit wird unter Kühlen mit 30 %     iger    Na  tronlauge neutralisiert, von den zum grossen  Teile ausgeschiedenen Mineralsalzen getrennt  und das Filtrat vom     Pyridin    durch Destilla  tion im Vakuum bei mässiger Temperatur  (zirka     50:')    befreit.

   Der feste Rückstand  wird in möglichst wenig Wasser gelöst, die  Lösung zwecks Befreiung von noch vorhan  denen     Mineralsalzen    mit verdünnter Schwe  felsäure gerade angesäuert und die saure  Salzlösung vom ausgeschiedenen Schwefel  säureester der     Rizinusölsäure    getrennt. Der  so erhaltene     hochsulfierte        Schwefelsäureester     der     Rizinusölsäure    wird zuletzt mit Natron  lauge gerade neutralisiert und diese Lösung  direkt in Verwendung genommen.



  Process for the production of a sulfur: iureester. It has been found that a valuable sulfuric acid ester is obtained when ricinoleic acid is treated with the addition products which sulfur trioxide forms with organic bases.



  The sulfuric acid ester produced in this way is very easily soluble in water. It shows a degree of sulphonation of over 85% and is intended to be used as an aid in the textile industry. (Determination of the degree of sulfation according to Dr.

   A. Landolt, Melliands Textil reports 1928, pag. 759-763 and 1929, pag.? Lf-? 1.5.) <I> Example: </I> To?: 00 parts of anhydrous pyridine are slowly allowed to 80 with stirring and cooling Add parts of chlorosulfonic acid dropwise; the pyridinesulfotrioxide formed separates out partly in crystalline form.

   This thin slurry suspension is allowed to slowly flow in to 10.0 g of castor oleic acid with thorough stirring at 3.0-35, with only a moderate increase in temperature, and then held for a few hours at the temperature range mentioned. The reaction liquid is neutralized with 30% sodium hydroxide solution while cooling, separated from the mineral salts which have largely precipitated out, and the filtrate is freed from pyridine by distillation in vacuo at a moderate temperature (about 50%).

   The solid residue is dissolved in as little water as possible, the solution is acidified with dilute sulfuric acid in order to free it from any mineral salts that are still present and the acidic salt solution is separated from the precipitated sulfuric acid ester of castoroleic acid. The highly sulfated sulfuric acid ester of castoroleic acid thus obtained is finally neutralized with sodium hydroxide solution and this solution is used directly.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Sehwe- felsäureesters, dadurch gekennzeichnet, dass man Rizinusölsäure mit den Additionspro- clukten, welche Schwefeltrioxyd mit orga nischen Basen bildet, behandelt. Der so hergestellte Schwefelsäureester ist in Wasser sehr leicht löslich. Er zeigt einen Sulfierungsgrad von über 85ö und soll als Hilfsmittel in der Textilindustrie verwendet werden. PATENT CLAIM: Process for the production of a sulfuric acid ester, characterized in that castor oleic acid is treated with the addition products which sulfur trioxide forms with organic bases. The sulfuric acid ester produced in this way is very easily soluble in water. It shows a degree of sulphonation of over 85 ° and is intended to be used as an aid in the textile industry.
CH151131D 1930-05-28 1930-05-28 Process for the preparation of a sulfuric acid ester. CH151131A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH151131T 1930-05-28
CH149091T 1931-05-29

Publications (1)

Publication Number Publication Date
CH151131A true CH151131A (en) 1931-11-30

Family

ID=25715333

Family Applications (1)

Application Number Title Priority Date Filing Date
CH151131D CH151131A (en) 1930-05-28 1930-05-28 Process for the preparation of a sulfuric acid ester.

Country Status (1)

Country Link
CH (1) CH151131A (en)

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