KR930012693A - 이소시아네이트의 제조 및 잔류물의 처리 방법 - Google Patents

이소시아네이트의 제조 및 잔류물의 처리 방법 Download PDF

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Publication number
KR930012693A
KR930012693A KR1019920024989A KR920024989A KR930012693A KR 930012693 A KR930012693 A KR 930012693A KR 1019920024989 A KR1019920024989 A KR 1019920024989A KR 920024989 A KR920024989 A KR 920024989A KR 930012693 A KR930012693 A KR 930012693A
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KR
South Korea
Prior art keywords
residue
solid residue
isocyanate
distilling
vessel
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KR1019920024989A
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English (en)
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KR100230708B1 (ko
Inventor
칼보 아리바스 자비에르
도밍고 아리바스 시리아코
비달 로드리구에스 살바도르
Original Assignee
크누트 샤우에르테, 클라우스 데너
바이엘 악티엔게젤샤프트
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Publication of KR930012693A publication Critical patent/KR930012693A/ko
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Publication of KR100230708B1 publication Critical patent/KR100230708B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
    • 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
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/90—Particular type of heating
    • 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
    • Y10S528/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S528/902—Particulate material prepared from an isocyanate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

본 발명은 대응 아민을 적당한 용매 존재 하에 포스겐과 반응시켜 순수 증류된 이소시아네이트를 제조하는 방법 및 다단계 증류에 의해 얻어지는 이소시아네이트 함유 용액을 순수한 이소시아네이트. 순용매 및 잔류물로 처리하는 방법을 제공한ㄷ. 잔류물을 고비점의 1종 이상의 탄화 수소를 함유한 용기에 충전시킨다. 이 용기의 내용물을 교반시키며 가열하여 존재하는 임의의 유리 이소시아네이트를 증류시킨다 남아 있는 잔류물은 쉽게 폐기될 수 있는 고상물이다.

Description

이소시아네이트의 제조 및 잔류물의 처리 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예에 기재된 방법에 사용되는 장치를 나타낸 도면.

Claims (7)

  1. a) 아민을 용매 존재하에 포스겐과 반응시키는 단계 : b) 단계 a)의 반웅 생성물을 증류시켜 순수한 이소시아 네이트, 순용매 및 잔류물을 얻는 단계 ; c) 단계 b)로부터 얻은 잔류물을 증류 조건하에 불활성인 고비점의 탄화수소가 존재하는 가열된 용기에 교만시키며 도입하는 단계; d) 단계 r)에서 사용된 가열된 용기의 네용물로부터 오소시 아네 이트를 증류시키는 단계 ; 및 e) 용기로부터 고상 잔류물을 배출시키는 단계로 이루어지는 순수한 이 소시아네이트의 제조 방법.
  2. 제1항에 있어서, 단계 e)의 고상 잔류물을 자유 유동시키는 방법.
  3. 제1항에 있어서, 단계 e)의 고상 잔류물을 분쇄시키는 방법.
  4. 제3항에 있어서. 불쇄된 고삿 잔류물읖 낼 각시키고 소각시키는 방법.
  5. 제1항에 있어서, 단계 e)의 고상 잔류물을 냉각시키고 소각시키는 방법
  6. a) 이소시아네이트 함유 잔류물을 증류 조건하에 불활성인 고비정의 탄화수소를 함유한 가열된 용기에 교반시키며 도입하는 단계; 및 b) 유리 이소시아네이트를 증류시키는 단계로 이루어지는, 이소시아네이트 함유 잔류물로부터 순수란 이소시아네이트를 회수 하는 방법.
  7. 제6항에 있어서, 증류 단계 b)를 종결한 후에 고상 잔류물을 회수하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920024989A 1991-12-23 1992-12-22 이소시아네이트의제조및잔류물의처리방법 KR100230708B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4142769A DE4142769A1 (de) 1991-12-23 1991-12-23 Verfahren zur herstellung von isocyanaten und aufarbeitung des rueckstandes
DEP4142769.6 1991-12-23

Publications (2)

Publication Number Publication Date
KR930012693A true KR930012693A (ko) 1993-07-21
KR100230708B1 KR100230708B1 (ko) 1999-11-15

Family

ID=6448018

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920024989A KR100230708B1 (ko) 1991-12-23 1992-12-22 이소시아네이트의제조및잔류물의처리방법

Country Status (10)

Country Link
US (1) US5354432A (ko)
EP (1) EP0548685B1 (ko)
JP (1) JP2916846B2 (ko)
KR (1) KR100230708B1 (ko)
BR (1) BR9205129A (ko)
CA (1) CA2085947A1 (ko)
DE (2) DE4142769A1 (ko)
ES (1) ES2089353T3 (ko)
MX (1) MX9207151A (ko)
TW (1) TW330197B (ko)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430951C1 (de) * 1994-08-31 1996-05-23 Bayer Ag Verfahren und Vorrichtung zur Abtrennung eines festen Rückstandes aus seiner Lösung im gerührten Gutbett
DE10260027A1 (de) * 2002-12-19 2004-07-08 Basf Ag Verfahren zur Abtrennung und Reinigung von Lösungsmittel von einem Reaktionsgemisch aus einer Isocyanatsynthese
US8030522B2 (en) * 2006-06-07 2011-10-04 Bayer Materialscience Llc Process for the production of toluene diisocyanate
DE102006060181A1 (de) * 2006-12-18 2008-06-19 Bayer Materialscience Ag Verfahren zur Herstellung von Toluylendiisocyanat
DE102007020444A1 (de) 2007-04-27 2008-11-06 Bayer Materialscience Ag Verfahren zur Oxidation eines Chlorwasserstoffenthaltenden Gasgemisches
US8273915B2 (en) 2007-08-31 2012-09-25 Basf Se Process for preparing isocyanates
HUE031803T2 (en) 2012-07-11 2017-08-28 Covestro Deutschland Ag Process for processing distillation residues from the production of isocyanate
US9688619B2 (en) 2013-08-19 2017-06-27 Covestro Deutschland Ag Process for obtaining organic isocyanates from distillation residues from isocyanate preparation
KR102596786B1 (ko) 2016-12-21 2023-11-02 코베스트로 도이칠란트 아게 이소시아네이트를 제조하는 방법
EP3597632A1 (de) * 2018-07-18 2020-01-22 Covestro Deutschland AG Verfahren zur rückgewinnung von diisocyanaten aus destillationsrückständen
EP3960728A1 (de) 2020-08-24 2022-03-02 Covestro Deutschland AG Verfahren zur isocyanat-herstellung mit rezyklierender, thermisch oxidativer verwertung
EP4335839A1 (de) * 2022-09-09 2024-03-13 Covestro Deutschland AG Verfahren zur behandlung von rückständen aus der produktion organischer isocyanate

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889257A (en) * 1956-05-17 1959-06-02 Du Pont Distillation of tar residues
US3884951A (en) * 1968-09-11 1975-05-20 Exxon Research Engineering Co Thioether isocyanate adducts
US3658656A (en) * 1968-11-07 1972-04-25 Takeda Chemical Industries Ltd Purification of xylylene organic diisocyanate by fractional distillation in the presence of an inert gas or superheated vapor of an organic solvent
US3897314A (en) * 1970-07-18 1975-07-29 Bayer Ag Process for removing distillation residue from crude isocyanates
GB1408745A (en) * 1970-09-23 1975-10-01 Res Ind Inc Method of recovering pure toluene diisocyanate from a polymeric residue product
US3729386A (en) * 1971-01-04 1973-04-24 Du Pont Organic isocyanate recovery process by distillation with a tar-thinning agent and a stripping agent
GB1353787A (en) * 1971-09-27 1974-05-22 Ici Ltd Process for the purification of isocyanates
US3892634A (en) * 1973-02-20 1975-07-01 Upjohn Co Separation of 2,4{40 {0 and 4,4{40 {0 methylene bis(phenyl isocyanate) from polymethylene polyphenyl polyisocyanates
US3912600A (en) * 1974-05-09 1975-10-14 Upjohn Co Recovery of polymethylene polyphenyl polyisocyanate from a phoshenosed polyamine feed
JPS5337852B2 (ko) * 1974-06-04 1978-10-12
DE2846815A1 (de) * 1978-10-27 1980-05-08 Ayer Ag Verfahren zur aufarbeitung von isocyanat-destillationsrueckstaenden
DE2915830A1 (de) * 1979-04-19 1980-10-23 Basf Ag Gewinnung von toluylendiisocyanat und/oder hoehersiedenden loesungsmitteln im wirbelbett aus destillationsrueckstaenden der toluylendiisocanat-herstellung
SE8604441L (sv) * 1986-10-20 1988-04-21 Nobel Chematur Ab Sett att utvinna isocyanater
ES2058036A6 (es) * 1989-03-03 1994-10-16 Lubrizol Corp Procedimiento para destilar concentrados brutos de isocianato.

Also Published As

Publication number Publication date
CA2085947A1 (en) 1993-06-24
JPH05255228A (ja) 1993-10-05
EP0548685B1 (de) 1996-07-17
JP2916846B2 (ja) 1999-07-05
KR100230708B1 (ko) 1999-11-15
EP0548685A3 (en) 1993-08-11
US5354432A (en) 1994-10-11
ES2089353T3 (es) 1996-10-01
TW330197B (en) 1998-04-21
MX9207151A (es) 1993-06-01
BR9205129A (pt) 1993-06-29
EP0548685A2 (de) 1993-06-30
DE59206781D1 (de) 1996-08-22
DE4142769A1 (de) 1993-06-24

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