DE515603C - Process for the preparation of pure rubber hydrocarbon from rubber milk - Google Patents

Process for the preparation of pure rubber hydrocarbon from rubber milk

Info

Publication number
DE515603C
DE515603C DEP52957D DEP0052957D DE515603C DE 515603 C DE515603 C DE 515603C DE P52957 D DEP52957 D DE P52957D DE P0052957 D DEP0052957 D DE P0052957D DE 515603 C DE515603 C DE 515603C
Authority
DE
Germany
Prior art keywords
rubber
preparation
alkali
milk
pure
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
DEP52957D
Other languages
German (de)
Inventor
Dr Hans Kroepelin
Dr Rudolf Pummerer
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.)
K D P Ltd
Original Assignee
K D P Ltd
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 K D P Ltd filed Critical K D P Ltd
Priority to DEP52957D priority Critical patent/DE515603C/en
Application granted granted Critical
Publication of DE515603C publication Critical patent/DE515603C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00—Treatment of rubber latex
    • C08C1/02—Chemical or physical treatment of rubber latex before or during concentration

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Description

Verfahren zur Darstellung von reinem Kautschukkohlenwasserstoff aus Kautschukmilch Es hat sich gezeigt, daß man das Verfahren des Hauptpatents vervollkommnen kann, dadurch, daß man die Behandlung mit Alkali in einem Elektrodialysator vornimmt. Diese Arbeitsweise bringt verschiedene Vorteile mit sich. Es wird durch sie ermöglicht, Spaltung und Dialyse gleichzeitig auszuführen. Ferner kann man durch stetiges Zugeben von Alkali den ganzen Vorgang zu einem kontinuierlichen gestalten, und schließlich unterstützt die bei der Elektrodialyse sich entwickelnde Stromwärme den Vorgang. Es wird mithin durch die Anwendung der Elektrodialyse eine erhebliche Beschleunigung des Verfahrens erzielt.Process for the preparation of pure rubber hydrocarbon Rubber milk It has been shown that the process of the main patent can be perfected can, by making the treatment with alkali in an electrodialyzer. This way of working has various advantages. It is made possible by them Carry out cleavage and dialysis at the same time. Furthermore, you can by constantly adding of alkali making the whole process a continuous one, and finally the heat generated during electrodialysis supports the process. The use of electrodialysis therefore accelerates the process considerably of the procedure.

Die Zugabe des Alkalis kann in der Mittelzelle oder noch besser in der Anodenkammer oder auch in beiden Kammern erfolgen. Durch die Zufuhr in die Anodenkammer und geeignete Führung der Spülung auf der Kathodenseite kann man einen günstigen Verlauf des Widerstandes auf dem Stromwege erzielen, so daß die Wärmeentwicklung hauptsächlich in der Mittelkammer stattfindet, wie dies wünschenswert ist. Man kann auch statt Alkali in die Anodenzelle einzuführen, Alkalisalz zufügen, und man kann ferner die an der Kathode entstehende Alkalilösung wieder in den Prozeß zurückführen.The addition of the alkali can be in the middle cell or even better in the anode chamber or in both chambers. By feeding into the anode chamber and appropriate management of the rinsing on the cathode side can be a cheap one Achieve the course of the resistance on the current path, so that the heat generation takes place primarily in the central chamber, as is desirable. One can also instead of introducing alkali into the anode cell, add alkali salt, and one can furthermore, return the alkali solution formed at the cathode to the process.

Die Spülung der Elektrodenzellen ist so zu regeln, daß ein genügendes Spannungsgefälle an der Mittelzelle liegt. 3o Beispiel: Man bringt eine Mischung von derselben Zusammensetzung wie im Beispiel des Hauptpatents in die Mittelzelle eines Elektrodialysators und wählt die Abmessungen des Apparates und die Stromstärke so, daß in der Mittelzelle eine Temperatur von etwa 50' aufrechterhalten wird. Die Flüssigkeit in der Mittelzelle wird gerührt und zweckmäßig vor dem Zutritt der Außenluft geschützt. Das abwandernde Alkali wird ersetzt entweder durch Zuführung von Alkalilösung in die Mittelzelle allein oder zur Mittelzelle und Anodenzelle oder zur Anodenzelle allein.The rinsing of the electrode cells must be regulated in such a way that there is a sufficient voltage gradient across the center cell. 3o example: A mixture of the same composition as in the example of the main patent is placed in the central cell of an electrodialyzer and the dimensions of the apparatus and the current intensity are selected so that a temperature of about 50 ° is maintained in the central cell. The liquid in the central cell is stirred and appropriately protected from the ingress of outside air. The migrating alkali is replaced either by supplying alkali solution to the central cell alone or to the central cell and anode cell or to the anode cell alone.

Claims (1)

PATENTANSPRUCH: Abänderung des durch Patent 4.6o 95o geschützten Verfahrens zur Darstellung von reinem Kautschukkohlenwasserstoff aus Kautschukmilch, durch Behandeln desselben mit Alkali, dadurch gekennzeichnet, daß man die Behandlung mit Alkali im Elektrodialysator vornimmt, unter Ersatz, gegebenenfalls unter Wiederverwendung des während des Vorgangs abgewanderten Alkalis.PATENT CLAIM: Modification of the process protected by patent 4.6o 95o for the preparation of pure rubber hydrocarbons from rubber milk Treating the same with alkali, characterized in that the treatment with Alkali makes in the electrodialyzer, with replacement, possibly with reuse of the alkali migrated during the process.
DEP52957D 1926-05-26 1926-05-26 Process for the preparation of pure rubber hydrocarbon from rubber milk Expired DE515603C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP52957D DE515603C (en) 1926-05-26 1926-05-26 Process for the preparation of pure rubber hydrocarbon from rubber milk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP52957D DE515603C (en) 1926-05-26 1926-05-26 Process for the preparation of pure rubber hydrocarbon from rubber milk

Publications (1)

Publication Number Publication Date
DE515603C true DE515603C (en) 1931-01-08

Family

ID=7386093

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP52957D Expired DE515603C (en) 1926-05-26 1926-05-26 Process for the preparation of pure rubber hydrocarbon from rubber milk

Country Status (1)

Country Link
DE (1) DE515603C (en)

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