PL424304A1 - Method for producing polyester polyols - Google Patents

Method for producing polyester polyols

Info

Publication number
PL424304A1
PL424304A1 PL424304A PL42430418A PL424304A1 PL 424304 A1 PL424304 A1 PL 424304A1 PL 424304 A PL424304 A PL 424304A PL 42430418 A PL42430418 A PL 42430418A PL 424304 A1 PL424304 A1 PL 424304A1
Authority
PL
Poland
Prior art keywords
carried out
temperature
pir
pur
production
Prior art date
Application number
PL424304A
Other languages
Polish (pl)
Inventor
Ewa Michno
Mateusz Tokarski
Wiesław Tarnawski
Original Assignee
Lerg Spółka Akcyjna
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 Lerg Spółka Akcyjna filed Critical Lerg Spółka Akcyjna
Priority to PL424304A priority Critical patent/PL424304A1/en
Publication of PL424304A1 publication Critical patent/PL424304A1/en

Links

Classifications

    • 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

Abstract

Przedmiotem zgłoszenia jest sposób wytworzenia stabilnych poliestroli przeznaczonych zwłaszcza jako bazowy surowiec do produkcji sztywnych pian poliizocyjanurowych i poliuretanowych (PIR/PUR), używanych głównie do wytwarzania płyt warstwowych typu PIR/PUR, które znajdują zastosowanie w termoizolacji obiektów, szczególnie obiektów wielkopowierzchniowych, z poli(tereftalanu etylenu) glikoli i/lub alkoholi dwu- i wielofunkcyjnych i/lub bezwodników kwasowych i/lub kwasów karboksylowych mono i wielofunkcyjnych i/lub olejów roślinnych i/lub katalizatorów. Przedmiotowy sposób polega na tym, że proces prowadzi się z jednoczesnym odbiorem ze środowiska reakcji wydzielającego się w czasie alkoholizy glikolu etylenowego z czynnikiem azeotropującym, z ciągłą kontrolą temperatury szczytu kolumny reaktora w zakresie temperatur od 134 do 210°C, przy czym destylację azeotropową prowadzi się w trakcie glikolizy lub po transestryfikacji, którą prowadzi się w temperaturze nie przekraczającej 250°C.The subject of the application is a method of producing stable polyesters intended especially as a basic raw material for the production of rigid polyisocyanurate and polyurethane foams (PIR / PUR), used mainly for the production of PIR / PUR sandwich panels, which are used in the thermal insulation of buildings, especially large-area buildings, made of poly ( ethylene terephthalate) glycols and / or di- and polyfunctional alcohols and / or mono and polyfunctional acid anhydrides and / or carboxylic acids and / or vegetable oils and / or catalysts. The subject method consists in the fact that the process is carried out with the simultaneous collection from the reaction environment of ethylene glycol released during alcoholysis with an azeotropic agent, with continuous control of the temperature of the top of the reactor column in the temperature range from 134 to 210 ° C, with the azeotropic distillation being carried out during glycolysis or after transesterification, which is carried out at a temperature not exceeding 250 ° C.

PL424304A 2018-01-18 2018-01-18 Method for producing polyester polyols PL424304A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL424304A PL424304A1 (en) 2018-01-18 2018-01-18 Method for producing polyester polyols

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL424304A PL424304A1 (en) 2018-01-18 2018-01-18 Method for producing polyester polyols

Publications (1)

Publication Number Publication Date
PL424304A1 true PL424304A1 (en) 2019-07-29

Family

ID=67384323

Family Applications (1)

Application Number Title Priority Date Filing Date
PL424304A PL424304A1 (en) 2018-01-18 2018-01-18 Method for producing polyester polyols

Country Status (1)

Country Link
PL (1) PL424304A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL212498B1 (en) * 2011-09-30 2012-10-31 Stepan Polska Spolka Z Ograniczona Odpowiedzialnoscia Process for the preparation of polyestrols for polyurethanes in the material recycling
CN103059283A (en) * 2013-01-23 2013-04-24 常熟理工学院 Method for preparing polyester polyol by taking waste polyester bottles as main raw materials
PL213868B1 (en) * 2006-10-06 2013-05-31 Inst Inzynierii Materialow Polimerowych I Barwnikow The manner of production of esters and terephtal oligoesters
PL216428B1 (en) * 2011-10-04 2014-04-30 Politechnika Warszawska Method for producing a poly(alkylene terephthalate) of waste poly(ethylene terephthalate)

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL213868B1 (en) * 2006-10-06 2013-05-31 Inst Inzynierii Materialow Polimerowych I Barwnikow The manner of production of esters and terephtal oligoesters
PL212498B1 (en) * 2011-09-30 2012-10-31 Stepan Polska Spolka Z Ograniczona Odpowiedzialnoscia Process for the preparation of polyestrols for polyurethanes in the material recycling
PL216428B1 (en) * 2011-10-04 2014-04-30 Politechnika Warszawska Method for producing a poly(alkylene terephthalate) of waste poly(ethylene terephthalate)
CN103059283A (en) * 2013-01-23 2013-04-24 常熟理工学院 Method for preparing polyester polyol by taking waste polyester bottles as main raw materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
M. MAZUREK, PET WASTES UTILIZATION IN THE SYNTHESIS OF ALIPHATIC-AROMATIC POLYURETHANE ELASTOMERS, 2014 *

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