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BE1031630B1 - PROCESS FOR THERMOMECHANICALLY DEVULCANIZING A VULCANIZED ELASTOMER - Google Patents

PROCESS FOR THERMOMECHANICALLY DEVULCANIZING A VULCANIZED ELASTOMER

Info

Publication number
BE1031630B1
BE1031630B1 BE20235418A BE202305418A BE1031630B1 BE 1031630 B1 BE1031630 B1 BE 1031630B1 BE 20235418 A BE20235418 A BE 20235418A BE 202305418 A BE202305418 A BE 202305418A BE 1031630 B1 BE1031630 B1 BE 1031630B1
Authority
BE
Belgium
Prior art keywords
devulcanizing
thermomechanically
particles
vulcanized elastomer
elastomer
Prior art date
Application number
BE20235418A
Other languages
French (fr)
Other versions
BE1031630A1 (en
Inventor
Olivier Prud'homme
Saïd Seghar
Original Assignee
Rubbergreen Ind
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 Rubbergreen Ind filed Critical Rubbergreen Ind
Priority to BE20235418A priority Critical patent/BE1031630B1/en
Priority to PCT/EP2024/064016 priority patent/WO2024240786A1/en
Publication of BE1031630A1 publication Critical patent/BE1031630A1/en
Application granted granted Critical
Publication of BE1031630B1 publication Critical patent/BE1031630B1/en

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
    • C08J11/12—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 by dry-heat treatment only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B29B7/726—Measuring properties of mixture, e.g. temperature or density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B29B7/728—Measuring data of the driving system, e.g. torque, speed, power, vibration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/823—Temperature control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/826—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B2017/0424—Specific disintegrating techniques; devices therefor
    • B29B2017/0464—Solid state shear extrusion pulverisation
    • 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
    • C08J2317/00—Characterised by the use of reclaimed rubber
    • 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
    • C08J2319/00—Characterised by the use of rubbers not provided for in groups C08J2307/00 - C08J2317/00
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Procédé pour dévulcaniser, par voie thermomécanique, un élastomère, comprenant les étapes de fournir un élastomère vulcanisé sous forme de particules, l’amenée desdites particules en amont d’une extrudeuse, qui comprend au moins une bi-vis comprenant au moins un élément de vis à pas inverse, et qui est agencée pour déplacer lesdites particules en son sein, un traitement thermomécanique desdites particules et l’amenée de ladite matière dévulcanisée vers une sortie pour récupérer une matière dévulcanisée.A method for thermomechanically devulcanizing an elastomer, comprising the steps of providing a vulcanized elastomer in the form of particles, feeding said particles upstream of an extruder, which comprises at least one twin-screw comprising at least one reverse-pitch screw element, and which is arranged to move said particles within it, thermomechanical treatment of said particles and feeding said devulcanized material to an outlet to recover a devulcanized material.

BE20235418A 2023-05-22 2023-05-22 PROCESS FOR THERMOMECHANICALLY DEVULCANIZING A VULCANIZED ELASTOMER BE1031630B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE20235418A BE1031630B1 (en) 2023-05-22 2023-05-22 PROCESS FOR THERMOMECHANICALLY DEVULCANIZING A VULCANIZED ELASTOMER
PCT/EP2024/064016 WO2024240786A1 (en) 2023-05-22 2024-05-22 Method for thermomechanically devulcanising a vulcanised elastomer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE20235418A BE1031630B1 (en) 2023-05-22 2023-05-22 PROCESS FOR THERMOMECHANICALLY DEVULCANIZING A VULCANIZED ELASTOMER

Publications (2)

Publication Number Publication Date
BE1031630A1 BE1031630A1 (en) 2024-12-16
BE1031630B1 true BE1031630B1 (en) 2025-01-06

Family

ID=86605651

Family Applications (1)

Application Number Title Priority Date Filing Date
BE20235418A BE1031630B1 (en) 2023-05-22 2023-05-22 PROCESS FOR THERMOMECHANICALLY DEVULCANIZING A VULCANIZED ELASTOMER

Country Status (2)

Country Link
BE (1) BE1031630B1 (en)
WO (1) WO2024240786A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130113139A1 (en) * 2010-04-14 2013-05-09 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastics material
FR2991687A1 (en) * 2012-06-08 2013-12-13 Plymouth Francaise Sa REGENERATION OF VULCANIZED RUBBER
US20150191578A1 (en) * 2010-01-31 2015-07-09 Harald Rust Non-chemical, mechanical procedure for the devulcanization of scrap rubber and/or elastomers and apparatus therefor
US20170362407A1 (en) * 2016-06-16 2017-12-21 Harald Rust Starter for the devulcanisation of scrap rubber
US20180251624A1 (en) * 2015-08-16 2018-09-06 Harald Rust Procedure for the devulcanization of scrap rubber and/or elastomers and apparatus therefor
DE102018004280A1 (en) * 2017-07-20 2019-01-24 Entex Rust & Mitschke Gmbh Dispergierring for Devulkanisieren of waste rubber
WO2021249593A1 (en) * 2020-06-08 2021-12-16 Continental Reifen Deutschland Gmbh Method for the devulcanisation of a vulcanisaed rubber mixture, device for carrying out the method, as well as a rubber mixture and vehicle pneumatic tyre, comprising a component made of the rubber mixture

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101168600B (en) 2007-09-20 2010-08-18 南京工业大学 High shear stress induced desulfurization and modification method for waste tire rubber
WO2022044031A1 (en) 2020-08-31 2022-03-03 Ceat Limited A method for devulcanzation of rubber

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150191578A1 (en) * 2010-01-31 2015-07-09 Harald Rust Non-chemical, mechanical procedure for the devulcanization of scrap rubber and/or elastomers and apparatus therefor
US20130113139A1 (en) * 2010-04-14 2013-05-09 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Apparatus for processing plastics material
FR2991687A1 (en) * 2012-06-08 2013-12-13 Plymouth Francaise Sa REGENERATION OF VULCANIZED RUBBER
US20180251624A1 (en) * 2015-08-16 2018-09-06 Harald Rust Procedure for the devulcanization of scrap rubber and/or elastomers and apparatus therefor
US20170362407A1 (en) * 2016-06-16 2017-12-21 Harald Rust Starter for the devulcanisation of scrap rubber
DE102018004280A1 (en) * 2017-07-20 2019-01-24 Entex Rust & Mitschke Gmbh Dispergierring for Devulkanisieren of waste rubber
WO2021249593A1 (en) * 2020-06-08 2021-12-16 Continental Reifen Deutschland Gmbh Method for the devulcanisation of a vulcanisaed rubber mixture, device for carrying out the method, as well as a rubber mixture and vehicle pneumatic tyre, comprising a component made of the rubber mixture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAÏD SEGHAR ET AL: "Thermo-mechanical devulcanization and recycling of rubber industry waste", RESOURCES, CONSERVATION AND RECYCLING, vol. 144, 1 May 2019 (2019-05-01), AMSTERDAM, NL, pages 180 - 186, XP055691804, ISSN: 0921-3449, DOI: 10.1016/j.resconrec.2019.01.047 *

Also Published As

Publication number Publication date
BE1031630A1 (en) 2024-12-16
WO2024240786A1 (en) 2024-11-28

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Effective date: 20250106