IT1255722B - Metodo per il recupero dei residui di fondo colonna nella distillazione frazionata dell'etilene glicole - Google Patents

Metodo per il recupero dei residui di fondo colonna nella distillazione frazionata dell'etilene glicole

Info

Publication number
IT1255722B
IT1255722B ITMI922330A ITMI922330A IT1255722B IT 1255722 B IT1255722 B IT 1255722B IT MI922330 A ITMI922330 A IT MI922330A IT MI922330 A ITMI922330 A IT MI922330A IT 1255722 B IT1255722 B IT 1255722B
Authority
IT
Italy
Prior art keywords
ethylene glycol
recovery
fractional distillation
column base
base residues
Prior art date
Application number
ITMI922330A
Other languages
English (en)
Inventor
Renato Vosa
Original Assignee
Montefibre Spa
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 Montefibre Spa filed Critical Montefibre Spa
Priority to ITMI922330A priority Critical patent/IT1255722B/it
Publication of ITMI922330A0 publication Critical patent/ITMI922330A0/it
Priority to EP93202854A priority patent/EP0592053A1/en
Priority to JP5254058A priority patent/JPH06206988A/ja
Publication of ITMI922330A1 publication Critical patent/ITMI922330A1/it
Application granted granted Critical
Publication of IT1255722B publication Critical patent/IT1255722B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

Metodo per il recupero dei residui di fondo colonna prodotti dalla distillazione frazionata dell'etilene glicole mediante polimerizzazione di detti residui, eventualmente diluiti con glicole etilenico, con un acido bicarbossilico aromatico e/o un suo estere.
ITMI922330A 1992-10-09 1992-10-09 Metodo per il recupero dei residui di fondo colonna nella distillazione frazionata dell'etilene glicole IT1255722B (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITMI922330A IT1255722B (it) 1992-10-09 1992-10-09 Metodo per il recupero dei residui di fondo colonna nella distillazione frazionata dell'etilene glicole
EP93202854A EP0592053A1 (en) 1992-10-09 1993-10-08 Method for recovering the tower bottom residues from the fractional distillation of ethylene glycol
JP5254058A JPH06206988A (ja) 1992-10-09 1993-10-12 エチレングリコールの分別蒸留から塔底部残液を回収する方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI922330A IT1255722B (it) 1992-10-09 1992-10-09 Metodo per il recupero dei residui di fondo colonna nella distillazione frazionata dell'etilene glicole

Publications (3)

Publication Number Publication Date
ITMI922330A0 ITMI922330A0 (it) 1992-10-09
ITMI922330A1 ITMI922330A1 (it) 1994-04-09
IT1255722B true IT1255722B (it) 1995-11-13

Family

ID=11364089

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922330A IT1255722B (it) 1992-10-09 1992-10-09 Metodo per il recupero dei residui di fondo colonna nella distillazione frazionata dell'etilene glicole

Country Status (3)

Country Link
EP (1) EP0592053A1 (it)
JP (1) JPH06206988A (it)
IT (1) IT1255722B (it)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2409343B2 (de) * 1974-02-27 1979-06-28 Akzo Gmbh, 5600 Wuppertal Verfahren zum Entfernen der dampfförmigen Reaktionsprodukte bei der Herstellung von Polyestern, insbesondere von Polyäthylenterephthalat
JPS52129799A (en) * 1976-04-26 1977-10-31 Mitsubishi Rayon Co Ltd Preparation of polyesters
US4146729A (en) * 1977-04-07 1979-03-27 E. I. Du Pont De Nemours And Company Process for preparing poly(ethylene terephthalate)
US4670580A (en) * 1986-03-31 1987-06-02 Celanese Corporation Process for preparing oligomeric glycol esters of dicarboxylic acids
DD277464A1 (de) * 1988-11-30 1990-04-04 Engels Chemiefaserwerk Veb Verfahren zur destillativen rueckgewinnung von fuer die polyesterherstellung wieder einsetzbarem ethylenglykol aus spaltglykol
US5238981A (en) * 1992-02-24 1993-08-24 Transitions Optical, Inc. Photochromic naphthopyrans

Also Published As

Publication number Publication date
JPH06206988A (ja) 1994-07-26
ITMI922330A1 (it) 1994-04-09
ITMI922330A0 (it) 1992-10-09
EP0592053A1 (en) 1994-04-13

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961017