DE806610C - Process for the odor and taste elimination of technical hexachlorocyclohexane - Google Patents

Process for the odor and taste elimination of technical hexachlorocyclohexane

Info

Publication number
DE806610C
DE806610C DEP1719A DEP0001719A DE806610C DE 806610 C DE806610 C DE 806610C DE P1719 A DEP1719 A DE P1719A DE P0001719 A DEP0001719 A DE P0001719A DE 806610 C DE806610 C DE 806610C
Authority
DE
Germany
Prior art keywords
hexachlorocyclohexane
technical
odor
taste
elimination
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
DEP1719A
Other languages
German (de)
Inventor
Dr Ferdinand Konnertz
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.)
HEINZ HAURY CHEM FAB
Original Assignee
HEINZ HAURY CHEM FAB
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 HEINZ HAURY CHEM FAB filed Critical HEINZ HAURY CHEM FAB
Priority to DEP1719A priority Critical patent/DE806610C/en
Application granted granted Critical
Publication of DE806610C publication Critical patent/DE806610C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00Preparation of halogenated hydrocarbons
    • C07C17/38Separation; Purification; Stabilisation; Use of additives
    • C07C17/395Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Geruch- und Geschmacklosmachung von technischem Hexachlorcyclohexan Das technische Hexachlorcyclohexan besitzt einen charakteristischen Geruch und Geschmack, die seiner Verwendung als insekticides Mittel Grenzen setzen. Es sind bereits mehrere Vorschläge zur Erreichung einer Geruchs- und Geschmacksverbesserung von Hexachlorcyclohexan gemacht worden, darunter auch der, dieses Produkt einer Reduktion mit Wasserstoff zu unterwerfen. Dabei zeigt sich aber eigenartigerweise, daß das so behandelte Produkt in seiner insekticiden Wirkung einen beachtlichen Abfall erleidet. Außerdem zeigt es sich bei diesem Verfahren, daß sich seiner technischen Auswertung erhebliche Schwierigkeiten dadurch entgegenstellen, daß die Verwendung immer frischer I2eaktionsgetnische zur Erzeugung des Wasserstoffes notwendig ist.Process for eliminating the odor and taste of technical hexachlorocyclohexane The technical hexachlorocyclohexane has a characteristic smell and taste, which limit its use as an insecticidal agent. There are already several Proposals for achieving a smell and taste improvement of hexachlorocyclohexane made, including the, this product of a reduction with hydrogen to subjugate. Strangely enough, this shows that the product treated in this way suffers a considerable decrease in its insecticidal effect. Also shows it is with this process that its technical evaluation is considerable Oppose difficulties by using always fresh reaction dishes is necessary to generate the hydrogen.

Gemäß der vorliegenden Erfindung zeigt es sich nun überraschenderweise, daß der Erfolg ohne Schädigung der insekticiden Wirkung des Hexachlorcyclohexan erreicht wird, wenn das Hexachlorcyclohexan in einem organischen Lösungsmittel der Einwirkung der Elektrolyse unterworfen wird, wobei es nicht notwendig ist, daß gasförmiger Wasserstoff zur Ausscheidung kommt. Gegebenenfalls muß die Lösung durch Elektrolytzusatz leitfähig gemacht werden. Als Kathode kann Blei oder Kohle verwendet werden. Als Anode dient Kohle. Es hat sich gezeigt, daß r'/2 Amperestunden für etwa 5 g Hexachlorcyclohexan genügen. Als Lösungsmittel für das Hexachlorcyclohexan können beispielsweise genannt werden: Methylalkohol, Äthylalkohol, Aceton, Dioxan, Isopropylalkohol, Glykol, Glycerin.According to the present invention, it is now surprisingly found that success without damaging the insecticidal effect of hexachlorocyclohexane is achieved when the hexachlorocyclohexane is in an organic solvent Is subjected to the action of electrolysis, it is not necessary that gaseous Hydrogen comes to the excretion. If necessary, the solution must be supplemented by electrolyte be made conductive. Lead or carbon can be used as the cathode. as The anode is used for coal. It has been shown that r '/ 2 ampere-hours for approximately 5 g of hexachlorocyclohexane are sufficient. Can be used as a solvent for the hexachlorocyclohexane Examples include: methyl alcohol, ethyl alcohol, acetone, dioxane, isopropyl alcohol, Glycol, glycerin.

Beispiele i. io g Hexachlorcyclohexan werden in 8oo ccm Aceton gelöst. Mit Hilfe zweier in die Lösung tauchenden Elektroden wird die Elektrolyse mit einer Stromstärke von i Ampere 3 Stunden lang durchgeführt. Zu der Mischung werden 200o ccm Wasser gegeben, das abgeschiedene Hexachlorcyclohexan abfiltriert und im Vakuum getrocknet. Das so erhaltene Produkt ist völlig frei von Geruch und Geschmack.Examples i. 10 g of hexachlorocyclohexane are dissolved in 8oo cc of acetone. With the help of two electrodes immersed in the solution, the electrolysis is carried out with a Amperage of i ampere carried out for 3 hours. Add 200o to the mixture ccm of water given, the separated hexachlorocyclohexane filtered off and in vacuo dried. The product obtained in this way is completely free of odor and taste.

z. io g technisches Hexachlorcyclohexan werden in Zoo ccm heißem Methylalkohol gelöst, oder io g technisches Hexachlorcyclohexan werden in i5occm heißem Butylalkohol gelöst. Die so erhaltene Lösung wird wie in Beispiel i behandelt; das Ergebnis ist das gleiche.z. 10 g of technical hexachlorocyclohexane are stored in zoo cc of hot methyl alcohol dissolved, or 10 g of technical hexachlorocyclohexane are dissolved in 15 ounces of hot butyl alcohol solved. The solution thus obtained is treated as in Example i; The result is the same.

Claims (1)

PATENTANSPRUCH: Verfahren zur Geruch- und Geschmacklosmachung von technischem Hexaclilorcyclohexan, dadurch gekennzeichnet, daß eine Lösung des Hexachlorcyclohexans in einem organischen Lösungsmittel, welches gegebenenfalls durch Zusatz eines Elektrolyten leitend gemacht worden ist, der Elektrolyse unterworfen wird, wobei gegebenenfalls das Kathodenpotential so niedrig gehalten wird, daß keine Gasentwicklung auftritt. PATENT CLAIM: Process for eliminating the smell and taste of technical hexachlorocyclohexane, characterized in that a solution of the hexachlorocyclohexane in an organic solvent, which has optionally been made conductive by adding an electrolyte, is subjected to the electrolysis, the cathode potential being kept so low, if necessary, that no gas evolution occurs.
DEP1719A 1948-10-02 1948-10-02 Process for the odor and taste elimination of technical hexachlorocyclohexane Expired DE806610C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP1719A DE806610C (en) 1948-10-02 1948-10-02 Process for the odor and taste elimination of technical hexachlorocyclohexane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP1719A DE806610C (en) 1948-10-02 1948-10-02 Process for the odor and taste elimination of technical hexachlorocyclohexane

Publications (1)

Publication Number Publication Date
DE806610C true DE806610C (en) 1951-06-14

Family

ID=7357431

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP1719A Expired DE806610C (en) 1948-10-02 1948-10-02 Process for the odor and taste elimination of technical hexachlorocyclohexane

Country Status (1)

Country Link
DE (1) DE806610C (en)

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