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BR8900108A - Processo de separacao do diisocianato de tolueno,contido nos residuos de sua fabricacao - Google Patents

Processo de separacao do diisocianato de tolueno,contido nos residuos de sua fabricacao

Info

Publication number
BR8900108A
BR8900108A BR898900108A BR8900108A BR8900108A BR 8900108 A BR8900108 A BR 8900108A BR 898900108 A BR898900108 A BR 898900108A BR 8900108 A BR8900108 A BR 8900108A BR 8900108 A BR8900108 A BR 8900108A
Authority
BR
Brazil
Prior art keywords
waste
manufacture
contained
separation process
diisocianate
Prior art date
Application number
BR898900108A
Other languages
English (en)
Inventor
Gerard Colas
Georges Gros
Ferenc Sagi
Original Assignee
Rhone Poulenc Chimie
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 filed Critical Rhone Poulenc Chimie
Publication of BR8900108A publication Critical patent/BR8900108A/pt

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)
BR898900108A 1988-01-13 1989-01-11 Processo de separacao do diisocianato de tolueno,contido nos residuos de sua fabricacao BR8900108A (pt)

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
BR8900108A true BR8900108A (pt) 1989-09-05

Family

ID=9362375

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898900108A BR8900108A (pt) 1988-01-13 1989-01-11 Processo de separacao do diisocianato de tolueno,contido nos residuos de sua fabricacao

Country Status (13)

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

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
EP2872481B1 (de) * 2012-07-11 2016-08-24 Covestro Deutschland 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
WO2018114846A1 (de) * 2016-12-21 2018-06-28 Covestro Deutschland Ag 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 (pt) * 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
EP0324701A1 (fr) 1989-07-19
KR890011828A (ko) 1989-08-22
CA1311245C (fr) 1992-12-08
FR2625742A1 (fr) 1989-07-13
JPH02758A (ja) 1990-01-05
EP0324701B1 (fr) 1991-11-27
FR2625742B1 (fr) 1990-06-22
PL277152A1 (en) 1989-09-18
PL155845B1 (pl) 1992-01-31
US4918220A (en) 1990-04-17
DD278337A5 (de) 1990-05-02
DE68900452D1 (de) 1992-01-09
ES2026737T3 (es) 1992-05-01
YU46992B (sh) 1994-11-15
YU4889A (en) 1990-10-31
RU1787155C (ru) 1993-01-07

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Legal Events

Date Code Title Description
FB19 Grant procedure suspended (art. 19)
FB19 Grant procedure suspended (art. 19)
FF Decision: intention to grant
HO Change of classification

Free format text: INT.CL.6 C07C265/14 E 263/20

FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 11/01/2009