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DK1129124T3 - Process and plant for the production of PET granules - Google Patents

Process and plant for the production of PET granules

Info

Publication number
DK1129124T3
DK1129124T3 DK99947453T DK99947453T DK1129124T3 DK 1129124 T3 DK1129124 T3 DK 1129124T3 DK 99947453 T DK99947453 T DK 99947453T DK 99947453 T DK99947453 T DK 99947453T DK 1129124 T3 DK1129124 T3 DK 1129124T3
Authority
DK
Denmark
Prior art keywords
pellets
precondensate
distributing
drip
crystallization
Prior art date
Application number
DK99947453T
Other languages
Danish (da)
Inventor
Rudolf Geier
Theo Juergens
Mark Veit
Original Assignee
Uhde 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7885784&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1129124(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Uhde Gmbh filed Critical Uhde Gmbh
Application granted granted Critical
Publication of DK1129124T3 publication Critical patent/DK1129124T3/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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • 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
    • C08G63/78—Preparation processes
    • C08G63/785—Preparation processes characterised by the apparatus used
    • 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
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Fodder In General (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Fertilizers (AREA)

Abstract

The invention relates to a method for producing especially PET granulates, wherein terephthalic acid and ethylene glycol are fed in the form of a precondensate into a drip tower having a distributing drip nozzle after esterification and pre-polycondensation with the purpose of effecting granulation. The precondensate exits the distributing drip nozzle by forming drop-shaped pellets that are blown by a hot countercurrent nitrogen stream reducing the velocity of fall and accelerating crystallization at an increasing degree of crystallization. Dried, semi-crystallized round pellets are thus produced that are then subjected to solid phase polycondensation resulting in pellets possessing high viscosity and quality for further processing.
DK99947453T 1998-10-27 1999-10-02 Process and plant for the production of PET granules DK1129124T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19849485A DE19849485B9 (en) 1998-10-27 1998-10-27 Process and plant for producing granules of polyfunctional carboxylic acids and alcohols, in particular PET granules
PCT/EP1999/007321 WO2000024809A1 (en) 1998-10-27 1999-10-02 Method and installation for producing granulates of polyfunctional carboxylic acids and alcohols, especially pet granulates

Publications (1)

Publication Number Publication Date
DK1129124T3 true DK1129124T3 (en) 2003-10-06

Family

ID=7885784

Family Applications (1)

Application Number Title Priority Date Filing Date
DK99947453T DK1129124T3 (en) 1998-10-27 1999-10-02 Process and plant for the production of PET granules

Country Status (12)

Country Link
EP (1) EP1129124B1 (en)
CN (1) CN1152081C (en)
AT (1) ATE242786T1 (en)
AU (1) AU6088899A (en)
DE (2) DE19849485B9 (en)
DK (1) DK1129124T3 (en)
ES (1) ES2201774T3 (en)
ID (1) ID29347A (en)
PT (1) PT1129124E (en)
RU (1) RU2205844C2 (en)
TW (1) TW483911B (en)
WO (1) WO2000024809A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10019508A1 (en) 2000-04-19 2001-10-31 Rieter Automatik Gmbh Process and device for the dropletization of precursors of thermoplastic polyester or copolyester
DE10042476A1 (en) * 2000-08-29 2002-03-28 Tessag Ind Anlagen Gmbh Spherical PET or PBT pellet production from polymer melt, involves production of droplets in a vibrating nozzle plate and part crystallization in a precipitation tower with opposing gas flow
DE10204954A1 (en) * 2001-12-11 2003-06-18 Buehler Ag Spherical PET or PBT bead production from prepolymer or polymer melts involves a precrystallization stage where falling melt droplets are swirled around by a vibrated cloth in a hopper
US6699545B2 (en) * 2001-12-21 2004-03-02 E. I. Du Pont De Nemours And Company Method for increasing solid state polymerization rate of polyester polymers
DE10310829A1 (en) * 2003-03-13 2004-09-23 Basf Ag Thermoplastic polymer granules used to manufacture uniformly-colored moldings, fibers or films, have limited areas of concavity measured by interference contrast spectroscopy
DE102004014590A1 (en) * 2004-03-23 2005-10-20 Buehler Ag Semicrystalline polyethylene terephthalate
DE102004031889B4 (en) 2004-06-30 2012-07-12 Infineon Technologies Ag Semiconductor component with a housing and a semi-embedded in a plastic housing material semiconductor chip and method for producing the same
EP1923188A1 (en) * 2006-11-14 2008-05-21 Linde Aktiengesellschaft Device for generating particles
DE102006056119A1 (en) * 2006-11-14 2008-05-15 Linde Ag Device for producing granulates by melt crystallization process, comprises nozzle pre-chamber for receiving melt, nozzles for production of melt drop, tube for cooling the drops and heating means for preventing undercooling of the nozzles
CN101825810B (en) 2009-03-06 2011-11-09 北京京东方光电科技有限公司 Liquid crystal display panel and manufacturing method thereof
CN115140713A (en) * 2022-07-28 2022-10-04 重庆万凯新材料科技有限公司 Energy-saving nitrogen purification process and device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544525A (en) * 1968-03-26 1970-12-01 Allied Chem Process for crystallization,drying and solid-state polymerization of polyesters
DE1804551A1 (en) * 1968-10-23 1970-05-27 Hoechst Ag Process for the production of high molecular weight polyesters
DE2559290B2 (en) * 1975-12-31 1979-08-02 Davy International Ag, 6000 Frankfurt Process for the continuous production of high molecular weight polyethylene terephthalate
US4340550A (en) * 1980-11-24 1982-07-20 E. I. Du Pont De Nemours And Company Oligomer pellets of ethylene terephthalate
DE58906032D1 (en) * 1988-12-23 1993-12-02 Buehler Ag Method and device for the continuous crystallization of polyester material.
DE59208466D1 (en) * 1992-11-13 1997-06-12 Fischer Karl Ind Gmbh Method and device for the continuous crystallization of plastic granules
IT1271073B (en) * 1994-11-21 1997-05-26 M & G Ricerche Spa PROCEDURE FOR THE CRYSTALLIZATION OF POLYESTER RESINS
US5540868A (en) * 1995-01-20 1996-07-30 E. I. Du Pont De Nemours And Company Process for pellet formation from amorphous polyester

Also Published As

Publication number Publication date
TW483911B (en) 2002-04-21
EP1129124A1 (en) 2001-09-05
RU2205844C2 (en) 2003-06-10
CN1324378A (en) 2001-11-28
CN1152081C (en) 2004-06-02
DE19849485A1 (en) 2000-05-04
DE19849485B9 (en) 2006-09-14
WO2000024809A1 (en) 2000-05-04
EP1129124B1 (en) 2003-06-11
AU6088899A (en) 2000-05-15
PT1129124E (en) 2003-10-31
ES2201774T3 (en) 2004-03-16
ID29347A (en) 2001-08-23
ATE242786T1 (en) 2003-06-15
DE59905953D1 (en) 2003-07-17
DE19849485B4 (en) 2005-08-11

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