DE4316190C1 - Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen, insbesondere Weichschaumstoff-Abfällen, zur Wiederverwertung als Zuschlagstoffe bei der Polyurethanherstellung - Google Patents

Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen, insbesondere Weichschaumstoff-Abfällen, zur Wiederverwertung als Zuschlagstoffe bei der Polyurethanherstellung

Info

Publication number
DE4316190C1
DE4316190C1 DE19934316190 DE4316190A DE4316190C1 DE 4316190 C1 DE4316190 C1 DE 4316190C1 DE 19934316190 DE19934316190 DE 19934316190 DE 4316190 A DE4316190 A DE 4316190A DE 4316190 C1 DE4316190 C1 DE 4316190C1
Authority
DE
Germany
Prior art keywords
nozzle
pressure
polyurethane
waste
mixture
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 - Fee Related
Application number
DE19934316190
Other languages
German (de)
English (en)
Inventor
Ferdinand Dr Proksa
Hans-Michael Dipl Ing Sulzbach
Ferdinand Althausen
Juergen Dipl Ing Wirth
Reiner Dipl Ing Raffel
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.)
Hennecke GmbH
Original Assignee
Hennecke GmbH
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 Hennecke GmbH filed Critical Hennecke GmbH
Priority to DE19934316190 priority Critical patent/DE4316190C1/de
Priority to EP19940106836 priority patent/EP0624444B1/de
Priority to ES94106836T priority patent/ES2092356T3/es
Priority to DE59400796T priority patent/DE59400796D1/de
Priority to US08/237,543 priority patent/US5451376A/en
Priority to TW83104173A priority patent/TW254886B/zh
Priority to JP12205294A priority patent/JPH06328443A/ja
Priority to CN94105806A priority patent/CN1049667C/zh
Application granted granted Critical
Publication of DE4316190C1 publication Critical patent/DE4316190C1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/06—Jet mills
    • B02C19/066—Jet mills of the jet-anvil type
    • 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
    • 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
    • B29B7/748—Plants
    • 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
    • B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
    • 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
    • B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
    • B29B7/749—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components with stirring means for the individual components before they are mixed together
    • 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
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/885—Adding charges, i.e. additives with means for treating, e.g. milling, the charges
    • 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
    • B29B7/7457—Mixing heads without moving stirrer
    • 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
    • B29B7/76—Mixers with stream-impingement mixing head
    • B29B7/7615—Mixers with stream-impingement mixing head characterised by arrangements for controlling, measuring or regulating, e.g. for feeding or proportioning the components
    • 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
    • B29B7/76—Mixers with stream-impingement mixing head
    • B29B7/7615—Mixers with stream-impingement mixing head characterised by arrangements for controlling, measuring or regulating, e.g. for feeding or proportioning the components
    • B29B7/7621—Mixers with stream-impingement mixing head characterised by arrangements for controlling, measuring or regulating, e.g. for feeding or proportioning the components involving introducing a gas or another component in at least one of the components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
DE19934316190 1993-05-14 1993-05-14 Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen, insbesondere Weichschaumstoff-Abfällen, zur Wiederverwertung als Zuschlagstoffe bei der Polyurethanherstellung Expired - Fee Related DE4316190C1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE19934316190 DE4316190C1 (de) 1993-05-14 1993-05-14 Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen, insbesondere Weichschaumstoff-Abfällen, zur Wiederverwertung als Zuschlagstoffe bei der Polyurethanherstellung
ES94106836T ES2092356T3 (es) 1993-05-14 1994-05-02 Procedimiento y dispositivo para el tratamiento de desechos de espuma de poliuretano.
DE59400796T DE59400796D1 (de) 1993-05-14 1994-05-02 Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen
EP19940106836 EP0624444B1 (de) 1993-05-14 1994-05-02 Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen
US08/237,543 US5451376A (en) 1993-05-14 1994-05-03 Process and apparatus for reprocessing polyurethane foam wastes, in particular flexible foam wastes, for recycling as additives in the production of polyurethane
TW83104173A TW254886B (enExample) 1993-05-14 1994-05-09
JP12205294A JPH06328443A (ja) 1993-05-14 1994-05-12 ポリウレタン製造の際に添加材として再使用するためポリウレタンフォーム廃棄物、特に軟質フォーム廃棄物の再生方法および装置
CN94105806A CN1049667C (zh) 1993-05-14 1994-05-13 聚氨酯泡沫废料的再加工方法和设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934316190 DE4316190C1 (de) 1993-05-14 1993-05-14 Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen, insbesondere Weichschaumstoff-Abfällen, zur Wiederverwertung als Zuschlagstoffe bei der Polyurethanherstellung

Publications (1)

Publication Number Publication Date
DE4316190C1 true DE4316190C1 (de) 1994-12-08

Family

ID=6488108

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19934316190 Expired - Fee Related DE4316190C1 (de) 1993-05-14 1993-05-14 Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen, insbesondere Weichschaumstoff-Abfällen, zur Wiederverwertung als Zuschlagstoffe bei der Polyurethanherstellung
DE59400796T Expired - Fee Related DE59400796D1 (de) 1993-05-14 1994-05-02 Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59400796T Expired - Fee Related DE59400796D1 (de) 1993-05-14 1994-05-02 Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen

Country Status (7)

Country Link
US (1) US5451376A (enExample)
EP (1) EP0624444B1 (enExample)
JP (1) JPH06328443A (enExample)
CN (1) CN1049667C (enExample)
DE (2) DE4316190C1 (enExample)
ES (1) ES2092356T3 (enExample)
TW (1) TW254886B (enExample)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0657266B2 (de) * 1993-11-29 2005-09-07 C.A. Greiner & Söhne Gesellschaft M.B.H. Verfahren und Vorrichtung zur Herstellung eines Formteils aus Kunststoffschaum
DE4418506A1 (de) * 1994-05-27 1995-11-30 Bayer Ag Verfahren zur Herstellung von Formkörpern aus Zweikomponenten-Reaktivsystemen mit hohem Füllstoffgehalt
DE4420168C1 (de) * 1994-06-09 1996-02-08 Hennecke Gmbh Maschf Verfahren zur Steuerung der Zellenzahl in Polyurethan-Schaumstoffen
US5523330A (en) * 1994-07-21 1996-06-04 Woodbridge Foam Corporation Process for producing a foamed isocyanate-based polymer
GB9417356D0 (en) * 1994-08-26 1994-10-19 Unilever Plc Detergent particles and process for their production
DE19528938C2 (de) * 1995-08-07 1999-01-14 Johann Ganz Verfahren zur Herstellung einer Formmasse
US5676461A (en) * 1996-03-18 1997-10-14 M. A. Hanna Rubber Compounding A Division Of M. A. Hanna Company Oil injection apparatus and method for polymer processing
ES2128946B1 (es) * 1996-08-01 2000-01-16 Pellicer Carlos F Procedimiento e instalacion para la obtencion de una pasta fina fluida destinada a ser endurecida tras su moldeo.
US6045070A (en) * 1997-02-19 2000-04-04 Davenport; Ricky W. Materials size reduction systems and process
US5868327A (en) * 1997-02-24 1999-02-09 Dawson; John Allan Mixing and dispensing apparatus and method
RU2115550C1 (ru) * 1997-11-19 1998-07-20 Борис Александрович Куцемелов Стендово-поточный способ производства ячеистобетонных изделий
US5954277A (en) * 1998-01-27 1999-09-21 Aec Oil Sands, L.P. Agitated slurry pump box for oil sand hydrotransport
JPH11320558A (ja) * 1998-03-18 1999-11-24 Idemitsu Petrochem Co Ltd 熱硬化性樹脂の粉砕方法
ATE290042T1 (de) 1999-12-23 2005-03-15 Mobius Technologies Inc Behandlung von polymerschaum
CN1093548C (zh) * 2000-08-17 2002-10-30 东莞富增泡棉塑胶有限公司 废弃聚氨酯泡棉的回收利用方法
MY145695A (en) * 2001-01-24 2012-03-30 Nichia Corp Light emitting diode, optical semiconductor device, epoxy resin composition suited for optical semiconductor device, and method for manufacturing the same
EP1474275A1 (en) * 2002-02-04 2004-11-10 Mobius Technologies, Inc. Process for grinding mixtures of polymeric foams
US6994464B2 (en) * 2002-04-11 2006-02-07 Mobius Technologies, Inc Control system and method for continuous mixing of slurry with removal of entrained bubbles
US6860289B2 (en) * 2002-04-11 2005-03-01 Robert Donald Villwock Surge tank
US20030233937A1 (en) * 2002-04-11 2003-12-25 Mobius Technologies, Inc., A California Corporation Apparatus and method for continuously removing air from a mixture of ground polyurethane particles and a polyol liquid
US7029162B2 (en) * 2002-04-11 2006-04-18 Mobius Technologies, Inc. Process and apparatus for continuous mixing of slurry with removal of entrained bubbles
CN100336867C (zh) * 2004-12-29 2007-09-12 刘明春 一种聚氨酯复合废料的回收成型工艺
EP1966337A2 (de) * 2005-12-15 2008-09-10 Hennecke GmbH Verfahren und vorrichtung zur herstellung von konstruktionselementen
JP5013586B2 (ja) * 2006-09-12 2012-08-29 東洋ゴム工業株式会社 研磨パッド及びその製造方法
CN101012332B (zh) * 2007-02-09 2010-10-13 李长玉 木质素、废旧硬质泡沫粉无氟聚氨酯保温材料及制备方法
CN100494525C (zh) * 2007-07-06 2009-06-03 烟台氨纶股份有限公司 一种将干纺氨纶废丝再生为正常氨纶丝的方法
CN101469050B (zh) * 2007-12-26 2010-12-29 中国科学院过程工程研究所 一种废弃硬质聚氨酯泡沫塑料的再生利用方法
CN101440171B (zh) * 2008-10-22 2011-07-13 无锡吉兴汽车部件有限公司 汽车顶衬的聚氨酯复合废料类材料的回收工艺
TW201125924A (en) * 2010-01-29 2011-08-01 Six Victor Ltd Method of producing latex pad and structure thereof
CN102115575B (zh) * 2010-12-06 2012-09-19 陈尔凡 可循环利用的树脂模具材料制备方法
US9327288B2 (en) 2011-02-28 2016-05-03 Nisshin Engineering Inc. Method of grinding powder
CN102672844A (zh) * 2012-05-22 2012-09-19 高鼎精细化工(昆山)有限公司 二阶段混合生产tpu的设备
WO2015027319A1 (en) * 2013-08-27 2015-03-05 Kambiz Taheri Process to improve the yield of chemical polyurethane foam recycling
EP3233256B1 (en) * 2014-12-18 2019-04-03 Tetra Laval Holdings & Finance S.A. A mixing unit and a method for mixing
CN104788716A (zh) * 2015-04-08 2015-07-22 景富新材料(唐山)有限公司 一种聚氨酯固体废弃物的复合降解方法
CN106274013A (zh) * 2016-08-08 2017-01-04 东莞市博凯鞋材有限公司 一种将弹性材料回收循环利用的方法
CN107446345A (zh) * 2017-08-29 2017-12-08 河北科技大学 一种基于鞋面边角料的填充型软质聚氨酯泡沫材料及其制备方法
US11213829B2 (en) * 2018-10-12 2022-01-04 Disa Technologies, Inc. High slurry density hydraulic disassociation system
US12325778B2 (en) 2019-04-23 2025-06-10 Northwestern University Urethane exchange catalysts and methods for reprocessing cross-linked polyurethane foams
EP3828213A1 (de) * 2019-11-28 2021-06-02 Covestro Deutschland AG Schüttgut enthaltend feste diisocyanate und daraus erhältliche urethangruppen-enthaltende prepolymere
KR102151929B1 (ko) * 2020-01-15 2020-09-04 (주)세종이엠티 내화성 충진물 분쇄장치, 이액형 내화성 충진물 원료혼합장치 및 이액형 원료액과 분쇄된 내화성 충진물을 혼합하여 내화성 성형물을 제조하는 방법

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339752A1 (de) * 1972-08-07 1974-03-14 K Balling Engelsen Fa Verfahren zur herstellung von polyurethan-schaumstoffen
DE4025102C2 (enExample) * 1990-08-08 1992-12-24 Aps Welsch & Partner Gmbh, 5102 Wuerselen, De

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396126A (en) * 1966-05-24 1968-08-06 Mobay Chemical Corp Polyurethanes
US3726624A (en) * 1970-02-27 1973-04-10 I Schwarz Foam sheet material means
US3852191A (en) * 1971-04-23 1974-12-03 Supraton Bruchmann & Zucker Kg Process and apparatus for the production of a dispersion or solution from comminuted solid substances and a dispersion medium or solvent
DE2828506C2 (de) * 1978-06-29 1980-04-17 Bayer Ag, 5090 Leverkusen Verfahren und Vorrichtung zum Herstellen eines schäumfähigen Gemisches aus mindestens zwei fließfähigen, schaumstoffbildenden Reaktionskomponenten und Zuschlagstoffen
DE2951617C2 (de) * 1979-12-21 1985-08-14 Wilhelm Prof. Dr.-Ing. 5100 Aachen Schütz Verfahren und Anlage zur Aufbereitung von Polyurethan
DE3232461A1 (de) * 1982-09-01 1984-03-01 Bayer Ag, 5090 Leverkusen Verfahren zum kontinuierlichen glykolytischen hochtemperatur-abbau von polyurethankunstoffabfaellen in schneckenmaschinen
DE3611691A1 (de) * 1986-04-08 1987-10-15 Kurt Roessler Zerkleinerungsvorrichtung
DE3633343A1 (de) * 1986-09-10 1988-03-17 Bayer Ag Verfahren und vorrichtung zum herstellen eines kunststoff, insbesondere schaumstoff bildenden, fliessfaehigen reaktionsgemisches aus mindestens zwei fliessfaehigen reaktionskomponenten im durchlauf
US4854713A (en) * 1987-11-10 1989-08-08 Krauss-Maffei A.G. Impingement mixing device with pressure controlled nozzle adjustment
DE4030639C1 (en) * 1990-09-27 1992-02-20 Michael 8023 Grosshesselohe De Demuth Polyurethane resin recycling process - comprises shredding resin, swelling obtd. particles to a flowable gel, adding poly:ol, isocyanate etc.
US5160354A (en) * 1991-05-14 1992-11-03 Du Pont Canada Inc. Process and apparatus for extraction and recovery of blowing agents from polymeric foams
JPH04366119A (ja) * 1991-06-14 1992-12-18 Mitsubishi Kasei Dow Kk 軟質ポリウレタンフォームの製造方法
AU3935793A (en) * 1992-04-06 1993-11-08 Dan E. Reeter Method and apparatus for mixing, comminuting and/or separating recyclable materials
US5298530A (en) * 1992-11-25 1994-03-29 Eastman Kodak Company Process of recovering components from scrap polyester

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339752A1 (de) * 1972-08-07 1974-03-14 K Balling Engelsen Fa Verfahren zur herstellung von polyurethan-schaumstoffen
DE4025102C2 (enExample) * 1990-08-08 1992-12-24 Aps Welsch & Partner Gmbh, 5102 Wuerselen, De

Also Published As

Publication number Publication date
DE59400796D1 (de) 1996-11-14
ES2092356T3 (es) 1996-11-16
EP0624444A1 (de) 1994-11-17
EP0624444B1 (de) 1996-10-09
TW254886B (enExample) 1995-08-21
JPH06328443A (ja) 1994-11-29
US5451376A (en) 1995-09-19
CN1102837A (zh) 1995-05-24
CN1049667C (zh) 2000-02-23

Similar Documents

Publication Publication Date Title
DE4316190C1 (de) Verfahren und Vorrichtung zum Aufbereiten von Polyurethanschaumstoff-Abfällen, insbesondere Weichschaumstoff-Abfällen, zur Wiederverwertung als Zuschlagstoffe bei der Polyurethanherstellung
DE2315587A1 (de) Verfahren und vorrichtung zum pulverisieren von vulkanisiertem gummi und vulkanisierten gummiprodukten
WO2002030652A1 (de) Mehrwellen-extruder und verfahren zur aufbereitung und/oder verarbeitung von mit füllstoff versetzten elastomeren
DE102008022355A1 (de) Rotor-Stator-System zum Herstellen von Dispersionen
DE2440345A1 (de) Vorrichtung zum sortieren von abfall
EP2882535A1 (de) Restbeton-aufbereitungsvorrichtung und verfahren zur restbeton-aufbereitung
DE2256524A1 (de) Verfahren und vorrichtung zum zerkleinern von gut in kleine stuecke
DE2540934B2 (de) Vorrichtung zum herstellen von fuellstoffe, insbesondere abfallschaumstoffe enthaltenden schaumstoffen
DE69010790T2 (de) Verfahren zur Herstellung von Explosivstoffen.
EP0406591A2 (de) Verfahren und Anlage zur Zerkleinerung von Mahlgut
EP3429734B1 (de) Verfahren zur herstellung von dispersionen mit definierter partikelgrösse
EP0727256A1 (de) Verfahren und Vorrichtung zur Zerkleinerung von feuchtem mineralischem Gut
DE2432860A1 (de) Ruehrwerksmuehle zum kontinuierlichen dispergieren und feinmahlen von stoffen in einem fluessigen bzw. verfluessigbaren dispersionsmittel
EP1464464A2 (de) Verfahren zur Herstellung von Polyurethan-Schaumstoffen
DE1190439B (de) Vorrichtung zum Loesen, Mischen, Emulgieren, Homogenisieren u. dgl. von Stoffgemischen, die schwerloesliche feste und fluessige Anteile enthalten
DE1944897B2 (de) Verfahren und Vorrichtung zum kontinuierlichen Herstellen eines nachreaktionsfähigen Pulvers
DE19755577C2 (de) Verfahren zum Granulieren oder Verpulvern
DE4416749A1 (de) Verfahren zum Pulverisieren von Polyurethan-, Polyharnstoff- und/oder Polyurethan-Polyharnstoff-Werkstoffen auf einer Walzenanlage
DE3416009A1 (de) Maschine zum zerkleinern von mais, ccm oder feuchtgetreide und verfahren zur anwendung der maschine
EP0674945B1 (de) Verfahren zum Einbringen von Mahlhilfsmittel
DE3607424A1 (de) Vorrichtung zum erzeugen einer entgiftungsemulsion fuer abc-kampfstoffe
EP0036985B1 (de) Einrichtung zur Erzeugung eines Gemisches aus mindestens einem zerdrückbaren stückigen Feststoff und mindestens einem flüssigen Bestandteil
EP0366759A1 (de) Verfahren zur zerkleinerung von sprödem mahlgut.
DE2340726A1 (de) Verfahren und vorrichtung zum kontinuierlichen mischen bzw. dispergieren und/oder feinmahlen
DE102023106787B3 (de) Anlage und Verfahren zur Herstellung von Düngemittelgranulat

Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee