ES2026737T3 - Procedimiento de separacion del tolueno-diisocianato contenido en los residuos de su fabricacion. - Google Patents

Procedimiento de separacion del tolueno-diisocianato contenido en los residuos de su fabricacion.

Info

Publication number
ES2026737T3
ES2026737T3 ES198989420012T ES89420012T ES2026737T3 ES 2026737 T3 ES2026737 T3 ES 2026737T3 ES 198989420012 T ES198989420012 T ES 198989420012T ES 89420012 T ES89420012 T ES 89420012T ES 2026737 T3 ES2026737 T3 ES 2026737T3
Authority
ES
Spain
Prior art keywords
waste
toluene
manufacture
diisocianate
contained
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES198989420012T
Other languages
English (en)
Inventor
Gerard Collas
Georges Gros
Ferenc Sagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodia Chimie SAS
Original Assignee
Rhone Poulenc Chimie SA
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 Rhone Poulenc Chimie SA filed Critical Rhone Poulenc Chimie SA
Application granted granted Critical
Publication of ES2026737T3 publication Critical patent/ES2026737T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification
    • 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
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

LA PRESENTE INVENCION SE REFIERE A UN RPOCEDIMIENTO DE SEPARACION DE TOLUENO DIISOCIANATO (TDI) DE LOS RESIDUOS DE SU FABRICACION, PARA SU RECUPERACION. EL PROCEDIMIENTO SE CARACTERIZA EN QUE DICHOS RESIDUOS SON TRATADOS POR UN GAS INERTE EN ESTADO LIQUIDO O SUPERCRITICO EL CASO PROBADO EN PRESENCIA DE UN COEXTRACTANTE ELEGIDO DE ENTRE LOS ESTERES, LOS HIDROCARBUROS AROMATICOS CLORADOS O NO, LOS HIDROCARBUROS ALIFATICOS CLORADOS. EL PROCEDIMIENTO CONBTIENE RESIDUOS QUE SE PRESENTAN BAJO FORMA DE ALQUITRAN.
ES198989420012T 1988-01-13 1989-01-12 Procedimiento de separacion del tolueno-diisocianato contenido en los residuos de su fabricacion. Expired - Lifetime ES2026737T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8800466A FR2625742B1 (fr) 1988-01-13 1988-01-13 Procede de separation du toluene diisocyanate contenu dans les residus de sa fabrication

Publications (1)

Publication Number Publication Date
ES2026737T3 true ES2026737T3 (es) 1992-05-01

Family

ID=9362375

Family Applications (1)

Application Number Title Priority Date Filing Date
ES198989420012T Expired - Lifetime ES2026737T3 (es) 1988-01-13 1989-01-12 Procedimiento de separacion del tolueno-diisocianato contenido en los residuos de su fabricacion.

Country Status (13)

Country Link
US (1) US4918220A (es)
EP (1) EP0324701B1 (es)
JP (1) JPH02758A (es)
KR (1) KR890011828A (es)
BR (1) BR8900108A (es)
CA (1) CA1311245C (es)
DD (1) DD278337A5 (es)
DE (1) DE68900452D1 (es)
ES (1) ES2026737T3 (es)
FR (1) FR2625742B1 (es)
PL (1) PL155845B1 (es)
RU (1) RU1787155C (es)
YU (1) YU46992B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5051152A (en) * 1989-09-26 1991-09-24 Air Products And Chemicals, Inc. Preparation of urethane prepolymers having low levels of residual toluene diisocyanate
US5962728A (en) * 1997-10-31 1999-10-05 Arco Chemical Technology, L.P. Isocyanate residue purification
US6160086A (en) * 1998-07-30 2000-12-12 3M Innovative Properties Company Process for removing impurities from polymers
US6307096B1 (en) * 1999-12-28 2001-10-23 Bayer Corporation Method for making aliphatic diisocyanates
DE10037772A1 (de) * 2000-08-03 2002-02-14 Bayer Ag Verfahren zur Absenkung des Chlorgehaltes in niedermolekularen Isocyanaten
CN101870666B (zh) * 2010-05-23 2013-04-10 青岛科技大学 甲苯二异氰酸酯生产中尾气吸收溶剂的精制回收工艺
WO2014009342A1 (de) * 2012-07-11 2014-01-16 Bayer Materialscience Ag Verfahren zur aufarbeitung von destillationsrückständen aus der isocyanatherstellung
CN105461594B (zh) * 2015-12-14 2017-10-27 青岛科技大学 一种降低重溶剂法tdi产品酸值的方法
EP3558940B1 (de) * 2016-12-21 2021-01-20 Covestro Intellectual Property GmbH & Co. KG Verfahren zur herstellung eines isocyanats

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1555515A (es) * 1966-05-05 1969-01-31
US3652705A (en) * 1968-10-03 1972-03-28 Mitsui Petrochemical Ind Process for the oligomerization of ethylene
CA998060A (en) * 1970-05-22 1976-10-05 Carl F. Irwin Recovery of organic isocyanate
GB1408745A (en) * 1970-09-23 1975-10-01 Res Ind Inc Method of recovering pure toluene diisocyanate from a polymeric residue product
BE786596A (fr) * 1971-07-30 1973-01-22 Ici Ltd Purification d'isocyanates organiques
FR2397396A1 (fr) * 1977-07-12 1979-02-09 Ugine Kuhlmann Procede de recuperation du toluene diisocyanate a partir des residus de fabrication

Also Published As

Publication number Publication date
JPH02758A (ja) 1990-01-05
YU4889A (en) 1990-10-31
US4918220A (en) 1990-04-17
EP0324701B1 (fr) 1991-11-27
FR2625742A1 (fr) 1989-07-13
CA1311245C (fr) 1992-12-08
EP0324701A1 (fr) 1989-07-19
PL155845B1 (pl) 1992-01-31
PL277152A1 (en) 1989-09-18
BR8900108A (pt) 1989-09-05
DE68900452D1 (de) 1992-01-09
FR2625742B1 (fr) 1990-06-22
DD278337A5 (de) 1990-05-02
YU46992B (sh) 1994-11-15
RU1787155C (ru) 1993-01-07
KR890011828A (ko) 1989-08-22

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