BR9104556A - Processo para o fracionamento de uma mistura de reacao obtida por fosgenacao de uma mistura de poliamina - Google Patents

Processo para o fracionamento de uma mistura de reacao obtida por fosgenacao de uma mistura de poliamina

Info

Publication number
BR9104556A
BR9104556A BR919104556A BR9104556A BR9104556A BR 9104556 A BR9104556 A BR 9104556A BR 919104556 A BR919104556 A BR 919104556A BR 9104556 A BR9104556 A BR 9104556A BR 9104556 A BR9104556 A BR 9104556A
Authority
BR
Brazil
Prior art keywords
phosgenation
fractionation
reaction mixture
polyamine
mixture obtained
Prior art date
Application number
BR919104556A
Other languages
English (en)
Inventor
Noritoshi Ishida
Zunzi Tashima
Mitsunori Shimamatsu
Kazunari Nitta
Takashi Nagou
Original Assignee
Mitsui Toatsu Chemicals
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 Mitsui Toatsu Chemicals filed Critical Mitsui Toatsu Chemicals
Publication of BR9104556A publication Critical patent/BR9104556A/pt

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
BR919104556A 1990-10-23 1991-10-22 Processo para o fracionamento de uma mistura de reacao obtida por fosgenacao de uma mistura de poliamina BR9104556A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2283515A JP2875877B2 (ja) 1990-10-23 1990-10-23 メチレン架橋ポリフェニレンポリイソシアネートの製造方法

Publications (1)

Publication Number Publication Date
BR9104556A true BR9104556A (pt) 1992-06-09

Family

ID=17666538

Family Applications (1)

Application Number Title Priority Date Filing Date
BR919104556A BR9104556A (pt) 1990-10-23 1991-10-22 Processo para o fracionamento de uma mistura de reacao obtida por fosgenacao de uma mistura de poliamina

Country Status (8)

Country Link
US (1) US5179227A (pt)
EP (1) EP0482490B1 (pt)
JP (1) JP2875877B2 (pt)
KR (1) KR950008204B1 (pt)
CN (1) CN1045003C (pt)
BR (1) BR9104556A (pt)
DE (1) DE69130101T2 (pt)
HU (1) HU208984B (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179222A (en) * 1991-09-13 1993-01-12 International Flavors & Fragrances Inc. Process for preparing phenyl butyronitriles and perfumery use of 2,2-dimethyl-4-phenyl valeronitrile
US5364958A (en) * 1992-06-23 1994-11-15 Mitsui Toatsu Chemicals, Incorporated Process for the production of methylene-crosslinked polyphenylene polyisocyanate
DE10333929A1 (de) * 2003-07-25 2005-02-24 Bayer Materialscience Ag Herstellung von Mischungen von Di- und Polyisocyanaten der Diphenylmethanreihe mit hohen Gehalten an 4,4'-Methylendiphenyldiisocyanat und 2,4'-Methylendiphenyldiisocyanat
DE102004005319A1 (de) 2004-02-04 2005-08-25 Bayer Materialscience Ag Verfahren zur Herstellung von hochreinem 2,4'-Methylendiphenyldiisocyanat
WO2006072360A1 (de) * 2004-12-22 2006-07-13 Lanxess Deutschland Gmbh Verfahren zur reduktion von chlorhaltigen komponenten in organischen isocyanaten
DE102005026864A1 (de) * 2005-06-10 2006-12-14 Bayer Materialscience Ag Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat
DE102005055189A1 (de) * 2005-11-19 2007-05-24 Bayer Materialscience Ag Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat
EP2042485A1 (en) * 2007-09-28 2009-04-01 Huntsman International Llc Process for fractionating a mixture of polyisocyanates
JP2010120870A (ja) * 2008-11-18 2010-06-03 Nippon Polyurethane Ind Co Ltd メチレン架橋ポリフェニルポリイソシアネートの製造方法
CN104326941B (zh) * 2014-11-05 2016-07-13 华玉叶 一种浓缩粗多异氰酸酯的方法
CN107207422B (zh) 2015-01-30 2020-12-11 巴斯夫欧洲公司 低副产物的多亚苯基多亚甲基多异氰酸酯
CN111069203B (zh) * 2019-12-06 2021-07-23 万华化学集团股份有限公司 一种光气化法异氰酸酯生产装置中酸性固体物的安全清理方法
WO2022059820A1 (ko) * 2020-09-18 2022-03-24 케이에스랩(주) 비염소화 유도체를 포함하는 이소시아네이트 화합물의 제조 방법 및 이들의 조성물
CN115650880B (zh) * 2022-11-03 2024-08-20 万华化学（宁波）有限公司 一种过保质期mdi的回收处理方法及由其制备碳化二亚胺改性异氰酸酯的方法和产品

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014914A (en) * 1970-01-12 1977-03-29 Badische Anilin- & Soda-Fabrik Aktiengesellschaft Manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diisocyanates and polyisocyanates
GB1398975A (en) * 1971-08-16 1975-06-25 Ici Ltd Heat treatment and distillation of methylene bridged polyphenyl polyisocyanates
GB1384065A (en) * 1971-11-30 1975-02-19 Ici Ltd Process for the purification of organic isocyanates
GB1417087A (en) * 1973-05-29 1975-12-10 Ici Ltd Polyisocyanates
US3925437A (en) * 1974-07-18 1975-12-09 Jefferson Chem Co Inc Reduction of acidity of organic polymeric isocyanates
DE2624285C2 (de) * 1976-05-31 1987-03-12 Basf Ag, 6700 Ludwigshafen Verfahren zur kontinuierlichen Herstellung von organischen Isocyanaten
DE2631168B2 (de) * 1976-07-10 1979-03-08 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Diisocyanatodiphenylmethan-Isomeren mit einem eingestellten Gehalt an Chlorverbindungen
DE2844591A1 (de) * 1978-10-13 1980-04-24 Texaco Development Corp Verfahren zur reinigung und verminderung der aziditaet von polymethylen-polyphenylpolyisocyanat-gemischen
JPS5826337A (ja) * 1981-07-16 1983-02-16 Clarion Co Ltd 保持プランジヤ−機構
DE3145010A1 (de) * 1981-11-12 1983-05-19 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von 4,4'-diisocyanatodiphenylmethan
DD257827A1 (de) * 1987-02-20 1988-06-29 Schwarzheide Synthesewerk Veb Verfahren zur gewinnung von isocyanatkomponenten aus verfahrensprodukten der toluylendiisocyanatherstellung
DE3714439A1 (de) * 1987-04-30 1988-11-10 Bayer Ag Verfahren zur herstellung von (cyclo)aliphatischen diisocyanaten

Also Published As

Publication number Publication date
KR920008098A (ko) 1992-05-27
HU208984B (en) 1994-02-28
EP0482490A2 (en) 1992-04-29
HU913325D0 (en) 1992-01-28
DE69130101T2 (de) 1999-02-18
JPH04159259A (ja) 1992-06-02
HUT60305A (en) 1992-08-28
DE69130101D1 (de) 1998-10-08
US5179227A (en) 1993-01-12
CN1045003C (zh) 1999-09-08
KR950008204B1 (ko) 1995-07-26
JP2875877B2 (ja) 1999-03-31
CN1060836A (zh) 1992-05-06
EP0482490B1 (en) 1998-09-02
EP0482490A3 (en) 1993-03-31

Similar Documents

Publication Publication Date Title
PT93452A (pt) Processo para a preparacao de uma pastilha de colestiramina
BR9005296A (pt) Processo para a hidroformilacao de uma olefina
BR8805820A (pt) Processo para a preparacao de uma composicao polimerica
PT93903A (pt) Processo para a fabricacao de um produto analogo as crias de enguia
BR9107113A (pt) Processo para a producao de sulfatos de glicerideos parciais
BR8904890A (pt) Processo para a preparacao de um produto
BR8702527A (pt) Processo para a preparacao de uma triazol-sulfonamida
BR8803596A (pt) Processo para a preparacao de uma poliolefina
BR9104923A (pt) Processo para a producao de um bisfenol
PT89264A (pt) Processo para a preparacao de compostos azabiciclicos
BR9104556A (pt) Processo para o fracionamento de uma mistura de reacao obtida por fosgenacao de uma mistura de poliamina
BR9407171A (pt) Processo para a produção de uma mistura combustível aparelho para efetuar referido processo e mistura combustivel assim produzida
PT92786A (pt) Processo para a preparacao de compostos de tiazol
BR9608282A (pt) Processo para a produção de uma hidroxialamida
BR9202881A (pt) Processo para a fabricacao de uma arruela
BR9400818A (pt) Processo para a preparação de dialquilpolihidroxiaminas terciárias
BR9107205A (pt) Processo para a sintese de uma classe de compostos
PT90435A (pt) Processo aperfeicoado para a preparacao de uma cetimina
BR8800430A (pt) Processo para a preparacao de uma composicao termoplastica
BR9201894A (pt) Processo de uma etapa para a producao de siloxanas
BR8900175A (pt) Processo para a preparacao de um produto de ciclopolidiorganossiloxano
BR9407090A (pt) Processo para a preparação de N-(4-hidroxifenil)-retinamida
BR8802526A (pt) Processo para a producao de uma mistura de gas
BR8707021A (pt) Processo para a hidroformilacao de uma olefina
PT98729A (pt) Processo para a preparacao de compostos azatri-hetero ciclicos

Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
PC Transfer

Free format text: MITSUI CHEMICALS, INC. (JP)

FF Decision: intention to grant
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 22/10/2011