DE483093C - Process for the recovery of rubber from scrap material with inferior inclusions - Google Patents

Process for the recovery of rubber from scrap material with inferior inclusions

Info

Publication number
DE483093C
DE483093C DES80124D DES0080124D DE483093C DE 483093 C DE483093 C DE 483093C DE S80124 D DES80124 D DE S80124D DE S0080124 D DES0080124 D DE S0080124D DE 483093 C DE483093 C DE 483093C
Authority
DE
Germany
Prior art keywords
inclusions
rubber
inferior
recovery
scrap material
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
DES80124D
Other languages
German (de)
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.)
SYNDICAT FRANCO NEERLANDAIS
Original Assignee
SYNDICAT FRANCO NEERLANDAIS
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.)
Publication date
Priority to DES80124D priority Critical patent/DE483093C/en
Application granted granted Critical
Publication of DE483093C publication Critical patent/DE483093C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2321/00—Characterised by the use of unspecified rubbers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Description

Verfahren zur Wiedergewinnung von Kautschuk aus Altmaterial mit minderwertigen Einschlüssen Die Erfindung betrifft ein Verfahren zur Wiedergewinnung von Kautschuk aus Altmaterial mit minderwertigen Einschlüssen nach Patent 46o 563. Als Rohstoffe für die Verarbeitung nach dem vorliegenden Verfahren sind beispielsweise zu nennen Bereifungsdecken bzw. -mäntel von Fahrrädern, Kraftfahrzeugen u. dgl., die in der Hauptmasse aus meist hochwertigem Kautschuk und Webstoffschichten bestehen, während z.B. die Anschlußwulste vielfach Einschlüsse enthalten aus minderwertigem bzw. durch erhärtende Zusätze verunreinigtem Kautschuk.Process for the recovery of rubber from scrap material with inferior quality Inclusions The invention relates to a method of reclaiming rubber from old material with inferior inclusions according to patent 46o 563. As raw materials Examples of processing according to the present method are to be mentioned Tire covers or coats of bicycles, motor vehicles and the like Main mass consists of mostly high-quality rubber and layers of woven fabric, while E.g. the connecting beads often contain inclusions from inferior or through hardening additives contaminated rubber.

Die Zeichnung veranschaulicht z. B. einen Querschnitt durch einen Luftreifenmantel für Kraftfahrzeuge.The drawing illustrates e.g. B. a cross section through a Pneumatic tire casing for automobiles.

Zur Verarbeitung auf Regenerat kam bisher praktisch nur der mit Webstoff schichten durchsetzteRingabschnitt r bis zu den Schnittlinien A-A und B-B in Betracht, da die Lauffläche 2 meist nahezu vollständig abgefahren ist und die Anschlußenden 3 die obenerwähnten minderwertigen Einschlüsse 4 enthalten.So far, only the one with woven material has been used for processing on regrind layered ring section r up to the intersection lines A-A and B-B into consideration, since the running surface 2 is mostly almost completely worn down and the connecting ends 3 contain the inferior inclusions 4 mentioned above.

Um nun den in diesen und ähnlichen Teilen noch vorhandenen hochwertigen Kautschuk ebenfalls möglichst vollständig wiederzugewinnen, werden diese und ähnliche Kautschukabfälle nach dem Verfahren des Patents 46o 563 getrennt behandelt. Die zu behandelnden Stücke werden also - wie im Hauptpatent beschrieben - mit Destillationsprodukten des vulkanisierten Kautschuks imprägniert und vorzugsweise mit konzentrierter Salzsäure behandelt. Dabei lösen sich die minderwertigen, meist harten und mit Zusatzstoffen verunreinigten, kautschukhaltigen Einschlüsse 4 aus ihrem Zusammenhang mit der Umscblußmasse und können nunmehr nach Aufschneiden der durch die Behandlung erweichten und aufgequollenen Umschlußmasse vollständig herausgeschält werden. Der wertvolle Umschlußkautschuk wird dann nach Patent 46o 563 weiterbehandelt. Die kautschukhaltigen Kerne oder Einschlüsse können auf für das Verfahren verwendbare Imprägnierungsmittel verarbeitet werden.Now to the high quality that is still present in these and similar parts To recover rubber as completely as possible, these and the like are used Rubber waste treated separately according to the method of patent 46o 563. the Pieces to be treated are thus - as described in the main patent - with distillation products of the vulcanized rubber impregnated and preferably with concentrated hydrochloric acid treated. In the process, the inferior, mostly hard ones and with additives dissolve contaminated, rubber-containing inclusions 4 from their connection with the surrounding mass and can now after cutting open the softened and swollen by the treatment Enclosure mass can be peeled off completely. The valuable encasing rubber is then further treated according to patent 46o 563. The rubber-containing cores or Inclusions can be processed on impregnating agents that can be used for the process will.

Claims (1)

PATENTANSPRUCH: Verfahren zur Wiedergewinnung von Kautschuk aus Altmaterial mit minderwertigen Einschlüssen nach Patent460 563, dadurch gekennzeichnet, daß die die Einschlüsse enthaltenden Rohstoffteile durch Behandlung mit den Imprägnierungsmitteln und mit Salzsäure erweicht und zum Aufquellen gebracht, alsdann aufgeschnitten und von den nunmehr leicht herausschälbaren Kerneinschlüssen befreit werden. PATENT CLAIM: Process for the recovery of rubber from waste material with inferior inclusions according to Patent 460 563, characterized in that the raw material parts containing the inclusions are softened by treatment with the impregnating agents and with hydrochloric acid and made to swell, then cut open and freed from the now easily peelable core inclusions .
DES80124D 1926-04-08 Process for the recovery of rubber from scrap material with inferior inclusions Expired DE483093C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES80124D DE483093C (en) 1926-04-08 Process for the recovery of rubber from scrap material with inferior inclusions

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DES80124D DE483093C (en) 1926-04-08 Process for the recovery of rubber from scrap material with inferior inclusions
FR460563X 1926-04-08
FR622334T 1926-08-25

Publications (1)

Publication Number Publication Date
DE483093C true DE483093C (en) 1929-09-25

Family

ID=27212773

Family Applications (1)

Application Number Title Priority Date Filing Date
DES80124D Expired DE483093C (en) 1926-04-08 Process for the recovery of rubber from scrap material with inferior inclusions

Country Status (1)

Country Link
DE (1) DE483093C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048019B (en) * 1954-07-15 1958-12-31 Dasher Rubber & Chemical Compa Process for removing cellulose fibers from rubber waste

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048019B (en) * 1954-07-15 1958-12-31 Dasher Rubber & Chemical Compa Process for removing cellulose fibers from rubber waste

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