KR830000711A - Continuous production method of poly(ethylene terephthalate) - Google Patents

Continuous production method of poly(ethylene terephthalate) Download PDF

Info

Publication number
KR830000711A
KR830000711A KR1019780001190A KR780001190A KR830000711A KR 830000711 A KR830000711 A KR 830000711A KR 1019780001190 A KR1019780001190 A KR 1019780001190A KR 780001190 A KR780001190 A KR 780001190A KR 830000711 A KR830000711 A KR 830000711A
Authority
KR
South Korea
Prior art keywords
polymerization
ethylene glycol
low
glycol
ethylene terephthalate
Prior art date
Application number
KR1019780001190A
Other languages
Korean (ko)
Other versions
KR840002023B1 (en
Inventor
레이에징 로버트
리엔-모우리
Original Assignee
에이. 엔. 리에디
이. 아이. 듀퐁 디 네모아 앤드 캄파니
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 에이. 엔. 리에디, 이. 아이. 듀퐁 디 네모아 앤드 캄파니 filed Critical 에이. 엔. 리에디
Priority to KR7801190A priority Critical patent/KR840002023B1/en
Publication of KR830000711A publication Critical patent/KR830000711A/en
Application granted granted Critical
Publication of KR840002023B1 publication Critical patent/KR840002023B1/en

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
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • 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
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings

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)

Abstract

내용 없음No content

Description

폴리(에틸렌 테레프탈레이트)의 연속적인 제조방법Continuous production method of poly(ethylene terephthalate)

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음This content is subject to disclosure, so the full text is not included.

도면은 본 발명의 방법에 사용되는 장치를 나타내는 개략적인 생산공정 계통도.The figure is a schematic production process flow diagram showing the apparatus used in the method of the present invention.

Claims (2)

테레프탈산을 과잉의 에틸렌글리콜로 직접 에스테르화해서 저중합도의 에스테르 반응 생성물을 생성시키는 것과, 감압하에 승온에서 중합하여 예비중합체를 생성시키는 것과, 또한 더욱 낮은 압력하에 승온에서 최종 중합을 하여 용융방상 가능한 중합체를 생성시키는 것을 포함하며, 여기서 중합의 과정에서 생성된 증기를 처리하여 글리콜을 회수하고, 이 글리콜을 에스테르화에 재순환시키는 연속적 방법에 의한 폴리(에틸렌 테레프탈레이트)를 제조하는 방법에 있어서, 상기 증기를 상기 중합의 낮은 압력하에 분무응축기중에서 에틸렌 글리콜액과 함께 분무하는 것과, 또한 분무응축기중에서 분무되도록 에틸렌 글리콜액 공급이 낮은 물함수물의 에틸렌 글리콜을 부가함에 의해 낮은 물함유물을 유지하고, 분무 응축기중에서 분무되는 공급체로부터 에틸렌 글리콜을 취출해서 에스테르화에 재순환시키는 것에 의해서 상기 압력을 낮게 유지함을 특징으로 하는 폴리(에틸렌 테레프탈레이트)의 연속적 제조방법.A polymer capable of melting by direct esterification of terephthalic acid with excess ethylene glycol to produce an ester reaction product of low polymerization degree, polymerization at elevated temperature under reduced pressure to form a prepolymer, and final polymerization at elevated temperature under lower pressure In the method for producing poly(ethylene terephthalate) by a continuous method of recovering glycol by treating the vapor generated in the process of polymerization, and recycling the glycol to esterification, the vapor The low water content is maintained by spraying with ethylene glycol solution in a spray condenser under the low pressure of polymerization, and adding ethylene glycol of a water content with a low supply of ethylene glycol so as to be sprayed in the spray condenser A method for continuously producing poly(ethylene terephthalate), characterized in that the pressure is kept low by taking out ethylene glycol from a feeder sprayed in the air and recycling it for esterification. ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed according to the contents of the first application.
KR7801190A 1978-04-21 1978-04-21 Process for preparing poly(ethylene terephthalate KR840002023B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR7801190A KR840002023B1 (en) 1978-04-21 1978-04-21 Process for preparing poly(ethylene terephthalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR7801190A KR840002023B1 (en) 1978-04-21 1978-04-21 Process for preparing poly(ethylene terephthalate

Publications (2)

Publication Number Publication Date
KR830000711A true KR830000711A (en) 1983-04-18
KR840002023B1 KR840002023B1 (en) 1984-11-05

Family

ID=19207480

Family Applications (1)

Application Number Title Priority Date Filing Date
KR7801190A KR840002023B1 (en) 1978-04-21 1978-04-21 Process for preparing poly(ethylene terephthalate

Country Status (1)

Country Link
KR (1) KR840002023B1 (en)

Also Published As

Publication number Publication date
KR840002023B1 (en) 1984-11-05

Similar Documents

Publication Publication Date Title
KR850008352A (en) Depolymerization method of polyester shavings
ATE44542T1 (en) PROCESSES FOR CROSSLINKING ETHYLENE POLYMERS CONTAINING ACID ANHYDRIDE GROUPS, CROSSLINKABLE COMPOSITIONS AND THE APPLICATION OF SUCH COMPOSITIONS TO COATING.
KR850004457A (en) Process for preparing butane-1,4-diol
KR920701299A (en) Polyethylene phthalate or polyethylene naphthalate is produced
GB634411A (en) Method of treating low-grade fatty stock to form alkyl esters therefrom
KR830000711A (en) Continuous production method of poly(ethylene terephthalate)
GB1300833A (en) Production of ethylene glycol
ES386922A1 (en) Process for the manufacture of polymer foams containing esters of tertiary alcohols as side groups
GB1106206A (en) Improvements in or relating to reactors for performing continuous liquid phase reactions
ES8103006A1 (en) Producing Sec-butanol from Linear Butenes
US3328269A (en) Purification of high-boiling esters from alcohol by distillation under pressure
ES426230A1 (en) Production of dicarboxylic acid diesters
GB1023176A (en) Process for the preparation of acrylic acid esters
GB957679A (en) Process for the esterification of carboxylic acids
GB795782A (en) Manufacture of highly polymeric polymethylene terephthalates
ATE12763T1 (en) PROCESS FOR THE MANUFACTURE OF DIMEDON.
GB1382278A (en) Treatment of terephthalic acid reaction products
ES379012A1 (en) Process for preparing glycidyl esters of polycarboxylic acid anhydrides
SU513967A1 (en) The method of isolation of dicarboxylic acids from the aqueous layer of caprolactam production
GB2082576B (en) Process for the production of dichlorophene ester mixture and emulsions containing this mixture
JPS54125270A (en) Production of oriented product of polyester resin
Heinze et al. Process for the Continuous Production of High-Molecular Polybutyleneterephthalate
ES434548A1 (en) Process for the production of low molecular weight cycloaliphatic diglycidyl esters
ATE102896T1 (en) PROCESS FOR THE PRODUCTION OF PHOSPHORIC ACID.
GB1214979A (en) Improvements in or relating to a process for the production of fibre- and film-forming polyesters

Legal Events

Date Code Title Description
J2X1 Appeal (before the patent court)

Free format text: TRIAL NUMBER: 1983201000019; APPEAL AGAINST DECISION TO DECLINE REFUSAL

G160 Decision to publish patent application
O035 Opposition [patent]: request for opposition

Free format text: OPPOSITION NUMBER: 001985000267001985001251; OPPOSITION DATE: 20991213