DE2861504D1 - Method for separating toluene diisocyanate from fabrication process residues - Google Patents

Method for separating toluene diisocyanate from fabrication process residues

Info

Publication number
DE2861504D1
DE2861504D1 DE7878400051T DE2861504T DE2861504D1 DE 2861504 D1 DE2861504 D1 DE 2861504D1 DE 7878400051 T DE7878400051 T DE 7878400051T DE 2861504 T DE2861504 T DE 2861504T DE 2861504 D1 DE2861504 D1 DE 2861504D1
Authority
DE
Germany
Prior art keywords
fabrication process
toluene diisocyanate
process residues
separating toluene
separating
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
Application number
DE7878400051T
Other languages
English (en)
Inventor
Pierre Ailloud
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.)
Rhone Poulenc Chimie de Base SA
Original Assignee
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann 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 Produits Chimiques Ugine Kuhlmann, Ugine Kuhlmann SA filed Critical Produits Chimiques Ugine Kuhlmann
Application granted granted Critical
Publication of DE2861504D1 publication Critical patent/DE2861504D1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/10—Vacuum distillation
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S159/00—Concentrating evaporators
    • Y10S159/10—Organic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
DE7878400051T 1977-07-12 1978-07-03 Method for separating toluene diisocyanate from fabrication process residues Expired DE2861504D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721436A FR2397396A1 (fr) 1977-07-12 1977-07-12 Procede de recuperation du toluene diisocyanate a partir des residus de fabrication

Publications (1)

Publication Number Publication Date
DE2861504D1 true DE2861504D1 (en) 1982-02-25

Family

ID=9193273

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7878400051T Expired DE2861504D1 (en) 1977-07-12 1978-07-03 Method for separating toluene diisocyanate from fabrication process residues

Country Status (17)

Country Link
US (1) US4216063A (de)
EP (1) EP0000463B1 (de)
JP (1) JPS5419938A (de)
AR (1) AR214462A1 (de)
AU (1) AU522377B2 (de)
BR (1) BR7804465A (de)
CA (1) CA1094090A (de)
DD (1) DD138314A5 (de)
DE (1) DE2861504D1 (de)
DK (1) DK154426C (de)
ES (1) ES471637A1 (de)
FR (1) FR2397396A1 (de)
IE (1) IE47024B1 (de)
IN (1) IN148484B (de)
IT (1) IT1111627B (de)
PT (1) PT68171A (de)
SU (1) SU1264840A3 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915830A1 (de) * 1979-04-19 1980-10-23 Basf Ag Gewinnung von toluylendiisocyanat und/oder hoehersiedenden loesungsmitteln im wirbelbett aus destillationsrueckstaenden der toluylendiisocanat-herstellung
FR2625742B1 (fr) * 1988-01-13 1990-06-22 Rhone Poulenc Chimie Procede de separation du toluene diisocyanate contenu dans les residus de sa fabrication
JPH02138567U (de) * 1989-04-21 1990-11-19
US5051152A (en) * 1989-09-26 1991-09-24 Air Products And Chemicals, Inc. Preparation of urethane prepolymers having low levels of residual toluene diisocyanate
JP2504851Y2 (ja) * 1990-02-07 1996-07-24 株式会社シマノ 釣り用リ―ルのリ―ドスイッチ取り付け構造
DE4317669A1 (de) * 1993-05-27 1994-12-01 Bayer Ag Verfahren zur Herstellung von Isocyanaten und kontinuierlichen Aufarbeitung des Rückstandes
DE4430951C1 (de) * 1994-08-31 1996-05-23 Bayer Ag Verfahren und Vorrichtung zur Abtrennung eines festen Rückstandes aus seiner Lösung im gerührten Gutbett
US5962728A (en) * 1997-10-31 1999-10-05 Arco Chemical Technology, L.P. Isocyanate residue purification
DE10260092A1 (de) * 2002-12-19 2004-07-01 Basf Ag Verfahren zur Reinigung von Isocyanaten
KR101287282B1 (ko) * 2005-09-29 2013-07-23 바스프 에스이 아이소시아네이트를 함유하는 잔류물의 정제 방법
CN102408354A (zh) * 2011-10-24 2012-04-11 天津大学 一种回收甲苯二异氰酸酯的方法及装置
KR102048110B1 (ko) * 2012-07-11 2019-11-22 코베스트로 도이칠란드 아게 이소시아네이트 제조에서 증류 잔류물의 후처리 방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706169A (en) * 1954-03-04 1955-04-12 Du Pont Flash distillation of 2,4-tolylene diisocyanate
US2974725A (en) * 1954-05-04 1961-03-14 Bayer Ag Process and apparatus for continuously obtaining dry materials
US3457291A (en) * 1965-04-01 1969-07-22 Union Carbide Corp Production of isocyanates
US3405040A (en) 1965-08-31 1968-10-08 Mobay Chemical Corp Method for recovering tolylene diisocyanate
US3542112A (en) * 1968-06-05 1970-11-24 Artisan Ind Thin-film evaporator having multi-zone temperature control jacket
CA998060A (en) 1970-05-22 1976-10-05 Carl F. Irwin Recovery of organic isocyanate
DD130143B1 (de) * 1975-08-15 1979-12-27 Guenter Muecke Verfahren zur kontinuierlichen thermischen abtrennung organischer isocyanate aus fluessigem destillationsrueckstand

Also Published As

Publication number Publication date
IT7868483A0 (it) 1978-06-23
DK154426B (da) 1988-11-14
FR2397396A1 (fr) 1979-02-09
JPS5419938A (en) 1979-02-15
JPS612057B2 (de) 1986-01-22
DK310578A (da) 1979-01-13
FR2397396B1 (de) 1980-01-18
EP0000463A1 (de) 1979-01-24
PT68171A (fr) 1978-07-01
AR214462A1 (es) 1979-06-15
SU1264840A3 (ru) 1986-10-15
DD138314A5 (de) 1979-10-24
IE781366L (en) 1979-01-12
IE47024B1 (en) 1983-11-30
CA1094090A (fr) 1981-01-20
IT1111627B (it) 1986-01-13
ES471637A1 (es) 1979-02-01
EP0000463B1 (de) 1982-01-06
BR7804465A (pt) 1979-03-20
IN148484B (de) 1981-03-07
AU3790278A (en) 1980-01-17
AU522377B2 (en) 1982-06-03
US4216063A (en) 1980-08-05
DK154426C (da) 1989-04-10

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: RHONE-POULENC CHIMIE DE BASE, COURBEVOIE, HAUTS-DE