RO94758B1 - Process for working by destroying the waste in polyester fibre industry - Google Patents

Process for working by destroying the waste in polyester fibre industry

Info

Publication number
RO94758B1
RO94758B1 RO12212486A RO12212486A RO94758B1 RO 94758 B1 RO94758 B1 RO 94758B1 RO 12212486 A RO12212486 A RO 12212486A RO 12212486 A RO12212486 A RO 12212486A RO 94758 B1 RO94758 B1 RO 94758B1
Authority
RO
Romania
Prior art keywords
waste
glycolysis
monoethylene glycol
colored
batteries
Prior art date
Application number
RO12212486A
Other languages
Romanian (ro)
Inventor
Corneliu Stan
Viorica Stan
Nicolai Romila
Gheorghe Stoica
Ioan Corduneanu
Emilia Nica
Dorin Alexandru Botoiu
Valentin Gribincea
Original Assignee
Combinatul De Fibre Sintetice
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 Combinatul De Fibre Sintetice filed Critical Combinatul De Fibre Sintetice
Priority to RO12212486A priority Critical patent/RO94758B1/en
Publication of RO94758B1 publication Critical patent/RO94758B1/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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
    • 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

  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Inventia de fata se refera la un procedeu de prelucrare a deseurilor de fabricatie din industria fibrelor poliesterice prin glicoliza blocurilor compacte de deseuri fibroase având o umiditate de 2 ... 12 %, impurificate, colorate, cu monoetilenglicolîn raport în greutate monoetilenglicol/deseu, 0,44 ... 0,70 si în prezenta uei cantitati de 0,016 ... 0,024 % fata de cantitatea de deseu, acetat de zinc drept catalizator; masa de reactie se încalzeste la 100 ... 145 degree C, se elimina apa si alte subst ante volatile sub forma de vapori, vaporii de monoetilenglicol antrenati sunt separati prin distilare la temperatura de 105 ... 130 degree C si se introduc în sistemul de reactie, care se mentine timp de 120 ... 210 min; la temperatura de 200 ... 205 degree C, dupa care se agita 150 ... 240 min., reactia de glicoliza având loc la temperatura de 200 ... 210 degree C, pâna la obtinerea diglicoleterftalatului, care se filtreaza în trei trepte, se coloreaza în masa si se îndeparteaza excesul de monoetilenglicol, iar diglicoltereftalatul astfel obtinut se trece la sinteza polietilentereftalatului. Instalatia în care se realizeaza procedeul este constituita din autoclava de glicoliza, coloana de distilare, condensator, vas colector, baterii de filtrare grosiera, baterii de filtrare avansata.The present invention relates to a process for the processing of manufacturing waste from the polyester fiber industry by glycolysis of compact blocks of fibrous waste having a moisture content of 2 to 12%, impurified, colored, with monoethyleneglycol in weight of monoethylene glycol / wax, 0 , 44 ... 0.70 and, in the presence of urea, amounts of 0.016 ... 0.024% relative to the amount of waste, zinc acetate as the catalyst; the reaction mass is heated to 100 DEG to 145 DEG C., the water and other volatile vapors are removed, the steamed monoethylene glycol vapors are distilled off at 105 DEG -130 DEG C. and introduced into the system which is maintained for 120 ... 210 min; at a temperature of 200 DEG-205 DEG C., after which it is agitated for 150 ... 240 minutes, the glycolysis reaction being carried out at a temperature of 200 DEG-210 DEG C. until the diglycleterphthalate is obtained, which is filtered in three stages , are colored in the mass and excess monoethylene glycol is removed, and the diglycol terephthalate thus obtained is passed to the synthesis of polyethylene terephthalate. The installation consists of a glycolysis autoclave, distillation column, condenser, collecting vessel, coarse filter batteries, advanced filtering batteries.

RO12212486A 1986-02-05 1986-02-05 Process for working by destroying the waste in polyester fibre industry RO94758B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO12212486A RO94758B1 (en) 1986-02-05 1986-02-05 Process for working by destroying the waste in polyester fibre industry

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO12212486A RO94758B1 (en) 1986-02-05 1986-02-05 Process for working by destroying the waste in polyester fibre industry

Publications (1)

Publication Number Publication Date
RO94758B1 true RO94758B1 (en) 1988-08-01

Family

ID=40904342

Family Applications (1)

Application Number Title Priority Date Filing Date
RO12212486A RO94758B1 (en) 1986-02-05 1986-02-05 Process for working by destroying the waste in polyester fibre industry

Country Status (1)

Country Link
RO (1) RO94758B1 (en)

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