EP1203040A1 - Verfahren und vorrichtung zur herstellung von kristallisationsfähigem kunststoffmaterial - Google Patents

Verfahren und vorrichtung zur herstellung von kristallisationsfähigem kunststoffmaterial

Info

Publication number
EP1203040A1
EP1203040A1 EP00930958A EP00930958A EP1203040A1 EP 1203040 A1 EP1203040 A1 EP 1203040A1 EP 00930958 A EP00930958 A EP 00930958A EP 00930958 A EP00930958 A EP 00930958A EP 1203040 A1 EP1203040 A1 EP 1203040A1
Authority
EP
European Patent Office
Prior art keywords
plastic material
crystallization
pet
temperature
production
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.)
Withdrawn
Application number
EP00930958A
Other languages
German (de)
English (en)
French (fr)
Inventor
Camille Bohrer
Martin Müller
Frank Glöckner
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.)
Polymetrix AG
Automatik Plastics Machinery GmbH
Original Assignee
Buehler AG
Rieter Automatik 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 Buehler AG, Rieter Automatik GmbH filed Critical Buehler AG
Publication of EP1203040A1 publication Critical patent/EP1203040A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/88—Post-polymerisation treatment
    • 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
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • B29B2009/165—Crystallizing granules

Definitions

  • the invention relates to a method for producing crystallizable plastic material such as polyesters and the like, in particular PET, by crystallizing and post-condensing in the solid phase after the melting phase, and to an apparatus for carrying out the method.
  • the crystallization and post-condensation in solid phase (SSP) of polyesters obtained from a melt, in particular of PET (polyethylene terephthalate), is generally known.
  • the molten polyester (melting temperature 270 ° C and higher) is processed to strand pellets, for example, with simultaneous cooling to room temperature and serves as an amorphous starting material for subsequent crystallization and post-condensation to PET.
  • crystallization takes place in two fluidized beds (combination of bubble bed and fluid bed) at temperatures from 140 ° C. to 180 ° C. After crystallization, it bounces to dissolve agglomerates.
  • EP-A-822214 now describes a process in which, without cooling the melt to a temperature far below the crystallization temperature, extrusion, pelleting and crystallization of polyester material take place.
  • a temperature of approx. 160 ° C to 220 ° C is maintained and crystallization should take approx. 5-30 minutes.
  • such a waiver of excessive cooling during pelleting is already known from WO 97/23543.
  • a polyester is held in a melt at approx. 270 ° C and passes through an opening in the form of a drop onto a hot metal plate at approx. 135 ° C, where crystallization is already taking place. That follows then a normal SSP process over 24 hours at approx. 205 ° C.
  • US-A-5510454 can also measure the temperature of the plate to which the drops are coming
  • thermoplastic materials for example PET according to WO94 / 25239
  • plastic strands to be dried are quenched for a maximum of 1.5 seconds in order to achieve a surface temperature of at least 100 ° C. Due to this only partial cooling of the plastic, the crystallization time should be a maximum of approx. 20 seconds.
  • a moving bed reactor can be evacuated, a separator for separating dust from the exhaust gas being provided for a vacuum pump.
  • a separator for separating dust from the exhaust gas being provided for a vacuum pump.
  • the invention is based on the object of further developing a method for producing crystallizable plastic material such as polyester or PET so that larger crystallites and a better surface crystal structure achieve a higher reactivity in the SSP process, and that solid foreign substances reliably crystallize from Plastic material to be separated. Energy consumption should also be reduced. This is done on the basis of the features of claim 1.
  • the invention is also based on the object of providing a suitable device for carrying out the aforementioned method.
  • the invention is described in more detail in an exemplary embodiment with reference to a drawing.
  • the drawing shows a schematic diagram in the single figure.
  • PET 1 From a melting reactor (not shown), PET 1 reaches a cutter 2 at a temperature of approximately 280 ° C. with cooling and solidification.
  • the resulting amorphous pellets 3 with a temperature of 140 ° C to 180 ° C then pass without further cooling into a fluidized bed 4 with a residence time customary in the process and then onto a sieve 5, which can be followed by a circulating air sifter if necessary, for dust and separate other foreign solids.
  • the fluidized bed 2 can also be a combination of a bubble bed and a fluidized bed. If necessary, the sieving process is followed by further crystallization (not shown).
  • the PET purified and crystallized in this way arrives in a preheater 6 or directly in a shaft reactor 7, where the solid phase post-condensation to PET takes place, and only then is the granulate cooled to room temperature in a cooler 8.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (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)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)
EP00930958A 1999-08-18 2000-06-09 Verfahren und vorrichtung zur herstellung von kristallisationsfähigem kunststoffmaterial Withdrawn EP1203040A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19938583 1999-08-18
DE19938583A DE19938583A1 (de) 1999-08-18 1999-08-18 Verfahren und Vorrichtung zur Herstellung von kristallisationsfähigem Kunststoffmaterial
PCT/CH2000/000317 WO2001012698A1 (de) 1999-08-18 2000-06-09 Verfahren und vorrichtung zur herstellung von kristallisationsfähigem kunststoffmaterial

Publications (1)

Publication Number Publication Date
EP1203040A1 true EP1203040A1 (de) 2002-05-08

Family

ID=7918406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00930958A Withdrawn EP1203040A1 (de) 1999-08-18 2000-06-09 Verfahren und vorrichtung zur herstellung von kristallisationsfähigem kunststoffmaterial

Country Status (15)

Country Link
US (1) US7291694B1 (pt)
EP (1) EP1203040A1 (pt)
JP (1) JP4564698B2 (pt)
KR (1) KR100661699B1 (pt)
CN (1) CN1169860C (pt)
AU (1) AU776078B2 (pt)
BR (2) BR0017443A (pt)
CA (1) CA2381965C (pt)
DE (1) DE19938583A1 (pt)
HK (1) HK1049850A1 (pt)
MX (1) MXPA02001700A (pt)
PL (1) PL213313B1 (pt)
TR (1) TR200200120T2 (pt)
WO (1) WO2001012698A1 (pt)
ZA (1) ZA200200954B (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007055242A1 (de) 2007-11-16 2009-05-20 Bühler AG Verfahren zur Kristallisation von kristallisierbaren Polymeren mit hoher Klebeneigung
WO2011079342A1 (de) 2009-12-28 2011-07-07 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Verfahren und vorrichtung zur herstellung von teilkristallinem polymermaterial

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT410942B (de) * 2001-10-29 2003-08-25 Fellinger Markus Verfahren und vorrichtung zur erhöhung der grenzviskosität von polyester
US20050167876A1 (en) * 2002-10-04 2005-08-04 Jan-Udo Kreyenborg Method for granulating plastics
US7204945B2 (en) * 2003-09-16 2007-04-17 Eastman Chemical Company Direct coupling of melt polymerization and solid state processing for PET
DE10349016B4 (de) * 2003-10-17 2005-10-20 Bkg Bruckmann & Kreyenborg Granuliertechnik Gmbh Verfahren zur Wärmebehandlung von Pellets aus PET
BRPI0409489A (pt) * 2003-10-17 2006-05-02 Bkg Bruckmann & Kreyenborg Granuliertechnik Gmbh procedimento para o processamento térmico de esferas de poliéster e dispositivo para executar tal procedimento
US7157032B2 (en) 2003-11-21 2007-01-02 Gala Industries, Inc. Method and apparatus for making crystalline PET pellets
US7222672B2 (en) 2004-01-16 2007-05-29 Halliburton Energy Services, Inc. Wellbore fluids containing additives for removing a filter cake and methods of using the same
US8079158B2 (en) 2004-09-02 2011-12-20 Grupo Petrotemex, S.A. De C.V. Process for separating and drying thermoplastic particles under high pressure
DE102005029501A1 (de) * 2005-05-09 2006-11-16 Bki Grundbesitz Gmbh & Co. Kg Verfahren und Vorrichtung zur Herstellung von teilkristallisiertem Polyester
DK1806359T3 (da) 2005-09-05 2010-06-14 Immatics Biotechnologies Gmbh Tumorassocierede peptider, der bindes promiskuøst til Humant Leukocyt-Antigen (HLA) klasse II molekyler
US7875184B2 (en) 2005-09-22 2011-01-25 Eastman Chemical Company Crystallized pellet/liquid separator
DE102007027543A1 (de) 2006-11-27 2008-05-29 Bühler AG Stranggranulationsverfahren und -vorrichtung sowie daraus hergestellte Granulate
DE102006058642A1 (de) 2006-12-11 2008-06-12 Bühler AG Verfahren zur Herstellung homogen kristallisierter Polykondensatgranulate

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Publication number Priority date Publication date Assignee Title
US3405098A (en) * 1965-10-29 1968-10-08 Du Pont Process for preparing high viscosity linear condensation polyesters from partially polymerized glycol terephthalates
US3544525A (en) * 1968-03-26 1970-12-01 Allied Chem Process for crystallization,drying and solid-state polymerization of polyesters
DE3213025C2 (de) * 1982-04-02 1997-06-12 Fischer Karl Ind Gmbh Verfahren zur Nachkondensation von Polykondensaten
US4609721A (en) * 1985-06-21 1986-09-02 Celanese Corporation Process for making molding grade polyethylene terephthalate
JPS6475520A (en) * 1987-09-17 1989-03-22 Teijin Ltd Solid phase polymerization for polyester
US4839969A (en) * 1988-02-26 1989-06-20 Permian Research Corporation Drying method and apparatus
US5424346A (en) * 1988-08-08 1995-06-13 Ecopol, Llc Biodegradable replacement of crystal polystyrene
JP2867296B2 (ja) * 1990-08-06 1999-03-08 旭化成工業株式会社 高重合度ポリエステルの製造方法
CH685003A5 (de) * 1992-08-11 1995-02-28 Buehler Ag Verfahren zum kontinuierlichen Kristallisieren und Polymerisieren von Kunststoffmaterial und Vorrichtung hierfür.
EP0597155B1 (de) * 1992-11-13 1997-05-07 Karl Fischer Industrieanlagen Gmbh Verfahren und Vorrichtung zum kontinuierlichen Kristallisieren von Kunststoffgranulat
US5912307A (en) * 1996-05-03 1999-06-15 Bp Amoco Corporation Polyester compositions
GB2331524B (en) * 1996-05-03 2000-09-27 Amoco Corp Polyester packages
IT1283644B1 (it) * 1996-08-01 1998-04-23 Sinco Eng Spa Procedimento perfezionato per la produzione di resine poliestere
DE19710098A1 (de) * 1997-03-12 1998-09-17 Paul Stehning Gmbh Verfahren zur Erzeugung von PET-Recyclat aus Flakes, sowie nach dem Verfahren erzeugtes PET-Produkt
JP3466077B2 (ja) * 1998-02-16 2003-11-10 旭化成株式会社 紡糸性に優れたポリトリメチレンテレフタレートチップ
NL1009846C2 (nl) * 1998-08-12 2000-02-15 Dsm Nv Polyamide voortbrengsel uit polytetramethyleendizuuramide.
DE19919357A1 (de) * 1999-04-28 2000-11-02 Buehler Ag Verfahren zur thermischen Behandlung von PET in fester Phase und Vorrichtung zur Durchführung des Verfahrens
US6524702B1 (en) * 1999-08-12 2003-02-25 Dow Global Technologies Inc. Electrical devices having polymeric members

Non-Patent Citations (1)

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See references of WO0112698A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007055242A1 (de) 2007-11-16 2009-05-20 Bühler AG Verfahren zur Kristallisation von kristallisierbaren Polymeren mit hoher Klebeneigung
WO2009062321A1 (de) 2007-11-16 2009-05-22 Bühler AG Verfahren zur kristallisation von kristallisierbaren polymeren mit hoher klebeneigung
US8728368B2 (en) 2007-11-16 2014-05-20 Bühler Thermal Processes Ag Method for crystallizing crystallizable polymers having a high tendency to agglomerate
WO2011079342A1 (de) 2009-12-28 2011-07-07 Erema Engineering Recycling Maschinen Und Anlagen Gesellschaft M.B.H. Verfahren und vorrichtung zur herstellung von teilkristallinem polymermaterial

Also Published As

Publication number Publication date
BR0017443A (pt) 2006-07-18
JP4564698B2 (ja) 2010-10-20
MXPA02001700A (es) 2005-07-29
CN1370193A (zh) 2002-09-18
ZA200200954B (en) 2002-10-30
KR100661699B1 (ko) 2006-12-26
BR0201454A (pt) 2002-08-20
CA2381965A1 (en) 2001-02-22
US7291694B1 (en) 2007-11-06
CN1169860C (zh) 2004-10-06
AU776078B2 (en) 2004-08-26
KR20020027550A (ko) 2002-04-13
JP2003507507A (ja) 2003-02-25
PL213313B1 (pl) 2013-02-28
HK1049850A1 (en) 2003-05-30
TR200200120T2 (tr) 2002-07-22
AU4908100A (en) 2001-03-13
WO2001012698A1 (de) 2001-02-22
DE19938583A1 (de) 2001-02-22
PL353866A1 (en) 2003-12-01
CA2381965C (en) 2009-12-15

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