WO1991000795A3 - Procede de recyclage de polystyrene - Google Patents

Procede de recyclage de polystyrene Download PDF

Info

Publication number
WO1991000795A3
WO1991000795A3 PCT/US1990/003646 US9003646W WO9100795A3 WO 1991000795 A3 WO1991000795 A3 WO 1991000795A3 US 9003646 W US9003646 W US 9003646W WO 9100795 A3 WO9100795 A3 WO 9100795A3
Authority
WO
WIPO (PCT)
Prior art keywords
waste
foamed polystyrene
paper
stream
delivered
Prior art date
Application number
PCT/US1990/003646
Other languages
English (en)
Other versions
WO1991000795A2 (fr
Inventor
George Trezek
Martin Stanczyk
Michael Grubbs
Original Assignee
Wte Corp
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 Wte Corp filed Critical Wte Corp
Publication of WO1991000795A2 publication Critical patent/WO1991000795A2/fr
Publication of WO1991000795A3 publication Critical patent/WO1991000795A3/fr

Links

Classifications

    • 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
    • B29B17/02—Separating plastics from other materials
    • 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
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • 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
    • B29B17/02—Separating plastics from other materials
    • B29B2017/0213—Specific separating techniques
    • B29B2017/0217—Mechanical separating techniques; devices therefor
    • B29B2017/0251—Hydropulping for converting the material under the influence of water into a slurry, e.g. for separating laminated plastic from paper
    • 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
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds 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
    • B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
    • B29K2711/12—Paper, e.g. cardboard
    • 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)
  • Environmental & Geological Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

L'invention concerne un procédé et un appareil de recyclage de polystyrène expansé à partir de déchets solides municipaux et plus particulièrement de déchets de restauration rapide. Un flot régulier de déchets est amené dans un broyeur pour réduire les déchets et leur donner une certaine taille de particule, dans un crible rotatif pour l'élimination des particules de déchets sous-dimensionnés et dans un classificateur pneumatique rotatif pour éliminer les déchets ''lourds'' du flot ou courant de déchets. A ce point, le flot de déchets comprend principalement du papier et du polystyrène expansé. Le papier et le polystyrène expansé sont amenés dans une cuve d'eau de transformation de la pâte qui transforme le papier en fibres de manière à le séparer du polystyrène expansé en le faisant passer par un tamis ayant une dimension de maille sélectionnée pour permettre à l'eau et à la pâte de papier de passer au travers du tamis mais en retenant le polystyrène expansé.
PCT/US1990/003646 1989-07-07 1990-06-26 Procede de recyclage de polystyrene WO1991000795A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37674689A 1989-07-07 1989-07-07
US376,746 1989-07-07

Publications (2)

Publication Number Publication Date
WO1991000795A2 WO1991000795A2 (fr) 1991-01-24
WO1991000795A3 true WO1991000795A3 (fr) 1992-05-14

Family

ID=23486295

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/003646 WO1991000795A2 (fr) 1989-07-07 1990-06-26 Procede de recyclage de polystyrene

Country Status (1)

Country Link
WO (1) WO1991000795A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120418A1 (de) * 1991-06-20 1992-12-24 Wacker Chemie Gmbh Haertbare organo(poly)siloxanmassen
DE4330735A1 (de) * 1993-09-10 1995-03-16 Wacker Chemie Gmbh Hydrophile Gruppen aufweisende Organopolysiloxane

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848813A (en) * 1973-03-09 1974-11-19 Us Interior Continuous process for mechanically separating materials contained in urban refuse
US4153207A (en) * 1973-02-22 1979-05-08 Manlio Cerroni Plant for the continuous production of paper-pulp from solid urban waste
US4815668A (en) * 1986-04-28 1989-03-28 Organ-Faser Technology Company N.V. Process and device for working up household, industrial and other similar waste

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153207A (en) * 1973-02-22 1979-05-08 Manlio Cerroni Plant for the continuous production of paper-pulp from solid urban waste
US3848813A (en) * 1973-03-09 1974-11-19 Us Interior Continuous process for mechanically separating materials contained in urban refuse
US4815668A (en) * 1986-04-28 1989-03-28 Organ-Faser Technology Company N.V. Process and device for working up household, industrial and other similar waste

Also Published As

Publication number Publication date
WO1991000795A2 (fr) 1991-01-24

Similar Documents

Publication Publication Date Title
BG103355A (en) Process for disaggregation of waste materials which contain at least partially reusable elements
CA1328932C (fr) Procede de digestion anaerobie
ES459721A1 (es) Procedimiento para la mejora de un material fibroso fabrica-do a partir de basuras.
US5356082A (en) Incinerated waste material treatment
DK0763125T3 (da) Fremgangsmåde til udvinding af polyhydroxyalkanoater ved anvendelse af vindsigtning
CA2252690A1 (fr) Systeme de preparation de charbon
NZ337719A (en) Apparatus for classifying waste materials comprising two sieve screens, the upper screen having a portion which is vigorously agitated
US5174509A (en) Incinerated waste material treatment
KR870001136B1 (ko) 스텐레스 스라그의 처리방법
CA2480253A1 (fr) Procede de separation de papier adherant d'un panneau de gypse
PL321639A1 (en) Method of and apparatus for sorting wastes in particular mixed building site wastes
WO1991000795A3 (fr) Procede de recyclage de polystyrene
AUPR675501A0 (en) A method and device for separating particulate material
CA2090139A1 (fr) Verre pour le traitement des surfaces dures, comportant des fragments de verre; procede de fabrication
KR200289802Y1 (ko) 풍력 선별장치
ATE110008T1 (de) Vorrichtung und verfahren zum zerkleinern von mineralfeststoffen in kleine teilchen und verfahren zum sortieren von mineralfeststoffteilchen nach grösse.
MX9704766A (es) Metodo y dispositivo para la limpieza de polvos.
JPH07150158A (ja) ごみ中の可燃物選別成形方法及びその装置
JPS5571792A (en) Method of making fuel from municipal waste
JPS63121605A (ja) 鉄粉解粒設備におけるオ−バ−粉処理方法
AU4320396A (en) Separating arrangement
MX9706216A (es) Un proceso para recuperar materias primas a partir de una corriente de material residual o recolectado originado durante la fabricacion de papel y una instalacion del mismo.
JPS5362372A (en) Apparatus for selectively recovering valuable things from city waste
NO954089D0 (no) Anordning og fremgangsmåte for behandling av en masseoppslemming av avfallspapir
CS214666B2 (en) Method of manipulation of light fraction of refuse particularly domestic and connection for executing the same

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): JP

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE

AK Designated states

Kind code of ref document: A3

Designated state(s): JP

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE