BRPI0701640A - processo para a produção de isocianatos - Google Patents

processo para a produção de isocianatos

Info

Publication number
BRPI0701640A
BRPI0701640A BRPI0701640-9A BRPI0701640A BRPI0701640A BR PI0701640 A BRPI0701640 A BR PI0701640A BR PI0701640 A BRPI0701640 A BR PI0701640A BR PI0701640 A BRPI0701640 A BR PI0701640A
Authority
BR
Brazil
Prior art keywords
phosgene
stream
hydrogen chloride
solvent
optionally
Prior art date
Application number
BRPI0701640-9A
Other languages
English (en)
Inventor
Wolfgang Lorenz
Original Assignee
Bayer Materialscience Llc
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 Bayer Materialscience Llc filed Critical Bayer Materialscience Llc
Publication of BRPI0701640A publication Critical patent/BRPI0701640A/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
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C01B7/07—Purification ; Separation
    • C01B7/0706—Purification ; Separation of hydrogen chloride
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C01B7/07—Purification ; Separation
    • C01B7/0706—Purification ; Separation of hydrogen chloride
    • C01B7/0731—Purification ; Separation of hydrogen chloride by extraction
    • 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)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROCESSO PARA A PRODUçãO DE ISOCIANATOS. A presente invenção refere-se a isocianatos que são produzidos por a) reação de pelo menos uma amina com o fosgênio, opcionalmente na presença de um solvente, para produzir o isocianato correspondente e obtém-se uma corrente que contém cloreto de hidrogênio, fosgênio e opcionalmente solvente, compostos de baixa fervura e substâncias inertes, b) separação da corrente que contém cloreto de hidrogênio, fosgênio e opcionalmente solvente, compostos de baixa fervura e substâncias inertes em uma seqüência de etapas de absorção de pelo menos dois estágios, que inclui (1) pelo menos uma etapa de absorção isotérmica e (2) pelo menos uma etapa de absorção adiabática, para obter (i) uma corrente de cloreto de hidrogênio contendo fosgênio em concentrações de no máximo 0,5% em peso (com base no peso da corrente de cloreto de hidrogênio) e (ii) uma corrente de fosgênio líquido, e c) reciclo da corrente de fosgênio líquido (ii) para a reação da amina com o fosgênio.
BRPI0701640-9A 2006-04-24 2007-04-24 processo para a produção de isocianatos BRPI0701640A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/409,940 US7504533B2 (en) 2006-04-24 2006-04-24 Process for the production of isocyanates

Publications (1)

Publication Number Publication Date
BRPI0701640A true BRPI0701640A (pt) 2007-12-11

Family

ID=38169465

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0701640-9A BRPI0701640A (pt) 2006-04-24 2007-04-24 processo para a produção de isocianatos

Country Status (13)

Country Link
US (1) US7504533B2 (pt)
EP (1) EP1849767B1 (pt)
JP (1) JP5085971B2 (pt)
KR (1) KR101385909B1 (pt)
CN (1) CN101062905B (pt)
AT (1) ATE446947T1 (pt)
BR (1) BRPI0701640A (pt)
DE (1) DE602007002941D1 (pt)
ES (1) ES2334065T3 (pt)
PL (1) PL1849767T3 (pt)
PT (1) PT1849767E (pt)
RU (1) RU2440332C2 (pt)
TW (1) TW200744995A (pt)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8192530B2 (en) * 2007-12-13 2012-06-05 Alstom Technology Ltd System and method for regeneration of an absorbent solution
DE102008009761A1 (de) * 2008-02-19 2009-08-27 Bayer Materialscience Ag Verfahren zur Herstellung von Isocyanaten
DE102009032413A1 (de) * 2009-07-09 2011-01-13 Bayer Materialscience Ag Verfahren zur Herstellung von Isocyanaten
PL2547652T3 (pl) * 2010-03-18 2015-03-31 Basf Se Sposób wytwarzania izocyjanianów
WO2013007597A1 (de) * 2011-07-08 2013-01-17 Bayer Intellectual Property Gmbh Verfahren zur herstellung von diarylcarbonaten
EP2559659A1 (en) * 2011-08-19 2013-02-20 Huntsman International Llc A process for separating hydrogen chloride gas out of a mixture of hydrogen chloride and phosgene
EP2559658A1 (en) * 2011-08-19 2013-02-20 Huntsman International LLC A process to separate phosgene and hydrogen chloride from a fluid stream comprising phosgene and hydrogen chloride
CA2857122C (en) * 2011-12-20 2020-08-04 Exxonmobil Upstream Research Company Method of separating carbon dioxide from liquid acid gas streams
US8741247B2 (en) 2012-03-27 2014-06-03 Alstom Technology Ltd Method and system for low energy carbon dioxide removal
US9932299B2 (en) 2013-02-08 2018-04-03 Covestro Deutschland Ag Process for separating an isocyanate prepared by phosgenation of a primary amine in the gas phase from the gaseous crude product of the phosgenation
EP2829533A1 (de) 2013-07-26 2015-01-28 Bayer MaterialScience AG Verfahren zur herstellung von isocyanaten
EP2949622B1 (de) 2014-05-27 2022-03-09 Covestro Intellectual Property GmbH & Co. KG Verfahren zur verarbeitung von chlorwasserstoff aus der isocyanatherstellung
HUE048607T2 (hu) 2015-03-12 2020-08-28 Basf Se Eljárás foszgént és sósavat tartalmazó anyagáram szétválasztására
KR102548305B1 (ko) * 2015-06-29 2023-06-28 코베스트로 도이칠란트 아게 화학 반응을 위한 염화수소를 제공하는 방법
EP3506993B1 (de) * 2016-09-01 2021-01-06 Covestro Intellectual Property GmbH & Co. KG Verfahren zur herstellung von isocyanaten
CN107597028B (zh) * 2017-09-21 2020-05-08 万华化学（宁波）有限公司 一种制备异氰酸酯的反应器及方法
CN108525337B (zh) * 2018-05-29 2023-07-18 杭州东日节能技术有限公司 一种稀盐酸真空浓缩塔及其使用方法
WO2020201277A1 (de) * 2019-04-02 2020-10-08 Covestro Intellectual Property Gmbh & Co. Kg Trocknungsvorrichtung und ihre verwendung sowie verfahren zur herstellung eines isocyanats unter einsatz der trockungsvorrichtung
CN114787125A (zh) 2019-12-18 2022-07-22 科思创德国股份有限公司 用于制备二苯基甲烷系列的二-和多异氰酸酯的方法
KR20230011290A (ko) * 2020-05-15 2023-01-20 코베스트로 도이칠란트 아게 이소시아네이트를 연속적으로 제조하기 위한 플랜트를 작동시키는 방법
CN111961185B (zh) * 2020-08-27 2022-07-12 万华化学集团股份有限公司 一种多亚甲基多苯基多异氰酸酯组合物及其制备方法
ES3023386T3 (en) * 2020-11-23 2025-05-30 Basf Se Process for producing isocyanates
US20240300817A1 (en) 2021-02-17 2024-09-12 Basf Se Method of separating phosgene and hydrogen chloride
CN113880730B (zh) * 2021-11-05 2023-03-14 宁夏瑞泰科技股份有限公司 一种连续式制备六亚甲基二异氰酸酯的工业化方法
EP4227291A1 (de) 2022-02-10 2023-08-16 Covestro Deutschland AG Verfahren zur herstellung von isocyanaten
EP4227292A1 (de) 2022-02-10 2023-08-16 Covestro Deutschland AG Verfahren zur herstellung von isocyanaten
EP4476198A1 (de) 2022-02-10 2024-12-18 Covestro Deutschland AG Verfahren zur herstellung von isocyanaten
WO2025089988A1 (ru) * 2023-10-23 2025-05-01 Публичное Акционерное Общество "Сибур Холдинг" (Пао "Сибур Холдинг") Устройство и способ разделения смеси, содержащей термолабильные вещества
CN119954102B (zh) * 2025-03-06 2026-04-24 北京瑞钜气体科技有限公司 一种生产电子级氯化氢并联产化学级氯化氢和工业级氯化氢的方法和系统

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1964338A (en) * 1925-07-22 1934-06-26 Symington Co Journal box
US2005691A (en) * 1933-12-30 1935-06-18 Singer Mfg Co Dust-bag support for portable suction cleaners
US2764607A (en) * 1952-07-26 1956-09-25 Celanese Corp Recovery of phosgene in the production of chloroformates
GB737442A (en) 1952-12-19 1955-09-28 Bayer Ag Recovery of phosgene
GB827376A (en) 1955-03-17 1960-02-03 France Etat Improvements in the manufacture of isocyanates
US3226410A (en) 1962-07-20 1965-12-28 Fmc Corp Continuous method of preparing aromatic isocyanates
US3142535A (en) * 1962-08-16 1964-07-28 Du Pont Process for the purification of hydrogen chloride gas contaminated with phosgene
US3211776A (en) 1963-01-22 1965-10-12 Du Pont Catalytic process for preparing aromatic chloroformates
US3381025A (en) * 1964-06-29 1968-04-30 Hodogaya Chemical Co Ltd Process for preparing isocyanates
DE1233854B (de) 1965-03-03 1967-02-09 Bayer Ag Verfahren zum Herstellen von Isocyanaten
FR1469105A (fr) * 1965-12-27 1967-02-10 Toulousaine De Prod Chim Toloc Procédé de fabrication d'esters isocyaniques
US3574695A (en) * 1968-04-11 1971-04-13 Du Pont Two-stage phosgenation process for producing organic isocyanates
US3734293A (en) * 1970-03-04 1973-05-22 Air Prod & Chem Thermoelectric adsorber
US3839847A (en) * 1972-07-05 1974-10-08 Hydrocarbon Research Inc Cryogenic hydrogen adsorption system
SU870394A1 (ru) * 1978-07-24 1981-10-07 Предприятие П/Я Г-4684 Способ очистки отход щих газов производства хлористого бензоила
DE3000524A1 (de) 1980-01-09 1981-07-16 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von aromatischen chlorformiaten
US4422976A (en) * 1981-04-07 1983-12-27 Mitsui Toatsu Chemicals, Incorporated Continuous preparation of organic isocyanates
US4421530A (en) * 1982-09-13 1983-12-20 Air Products And Chemicals, Inc. Process for removing oxygen from mixed gas streams using a swing adiabatic absorption-isothermal desorption cycle
DE3327274A1 (de) 1983-07-28 1985-02-07 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von phosgen unter gleichzeitiger erzeugung von dampf
US4876380A (en) * 1988-08-31 1989-10-24 The Dow Chemical Company Color reduction of polymeric isocyanates via multiple solvent fractionation
SU1811161A1 (ru) 1990-06-12 1995-05-20 Государственный научно-исследовательский и проектный институт карбамида и продуктов органического синтеза с опытным заводом Способ получения органических изоцианатов
DE4217019A1 (de) 1992-05-22 1993-11-25 Bayer Ag Verfahren zur Herstellung von aromatischen Diisocyanaten
EP0618170B1 (en) * 1993-03-31 1996-09-04 Basf Corporation Process for producing reagent grade hydrochloric acid from the manufacture of organic isocyanates
US6010612A (en) 1993-11-22 2000-01-04 E.I. Du Pont De Nemours And Company Production of isocyanate using chlorine recycle
SE9403929L (sv) 1994-11-15 1996-05-16 Chematur Eng Ab Sätt vid fosgenering
JP3806459B2 (ja) 1996-01-29 2006-08-09 三井化学ポリウレタン株式会社 アルコキシシリル基含有イソシアネート化合物の製造方法
EP1020435A4 (en) 1997-01-16 2000-12-13 Nippon Kasei Chemical Company ALIPHATIC TRIISOCYANATE COMPOUNDS, METHOD FOR THE PRODUCTION THEREOF AND POLYURETHANRESINE PRODUCED FROM THESE COMPOUNDS
FR2767821A1 (fr) * 1997-09-04 1999-02-26 Rhone Poulenc Agrochimie Phosgenation sous pression des alcools pour la production des chloroformiates
US6402930B1 (en) 1999-05-27 2002-06-11 De Nora Elettrodi S.P.A. Process for the electrolysis of technical-grade hydrochloric acid contaminated with organic substances using oxygen-consuming cathodes
US6149782A (en) 1999-05-27 2000-11-21 De Nora S.P.A Rhodium electrocatalyst and method of preparation
IN237581B (pt) 2002-02-27 2010-01-01 Basf Ag
US6719957B2 (en) 2002-04-17 2004-04-13 Bayer Corporation Process for purification of anhydrous hydrogen chloride gas
DE10235476A1 (de) 2002-08-02 2004-02-12 Basf Ag Integriertes Verfahren zur Herstellung von Isocyanaten
DE10245704A1 (de) 2002-09-30 2004-04-01 Bayer Ag Verfahren zum Quenchen eines gasförmigen Reaktionsgemisches bei der Gasphasenphosgenierung von Diaminen
DE10260084A1 (de) * 2002-12-19 2004-07-01 Basf Ag Auftrennung eines Stoffgemisches aus Clorwasserstoff und Phosgen
DE102004032871A1 (de) * 2004-07-07 2006-02-09 Bayer Materialscience Ag Verfahren zur Herstellung von Polyisocyanaten durch adiabate Phosgenierung von primären Aminen

Also Published As

Publication number Publication date
KR101385909B1 (ko) 2014-04-15
CN101062905A (zh) 2007-10-31
KR20070104857A (ko) 2007-10-29
CN101062905B (zh) 2013-01-02
ATE446947T1 (de) 2009-11-15
DE602007002941D1 (de) 2009-12-10
RU2007115147A (ru) 2008-11-10
TW200744995A (en) 2007-12-16
US7504533B2 (en) 2009-03-17
EP1849767A1 (en) 2007-10-31
JP2007291106A (ja) 2007-11-08
PT1849767E (pt) 2009-12-29
PL1849767T3 (pl) 2010-03-31
EP1849767B1 (en) 2009-10-28
JP5085971B2 (ja) 2012-11-28
RU2440332C2 (ru) 2012-01-20
US20070249859A1 (en) 2007-10-25
ES2334065T3 (es) 2010-03-04

Similar Documents

Publication Publication Date Title
BRPI0701640A (pt) processo para a produção de isocianatos
TW200714576A (en) Process for producing isocyanates
RU2008150588A (ru) Способ получения органических изоцианатов
Jiang et al. Silver-catalyzed activation of internal propargylic alcohols in supercritical carbon dioxide: efficient and eco-friendly synthesis of 4-alkylidene-1, 3-oxazolidin-2-ones
BRPI0900468A2 (pt) processo para a preparação de isocianatos
ATE488494T1 (de) Auftrennung eines stoffgemisches aus chlorwasserstoff und phosgen
WO2004037718A3 (de) Verfahren zur herstellung von chlor aus salzsäure und ein damit integriertes verfahren zur herstellung von isocyanaten
BRPI0813576A2 (pt) Método para a produção de óxido de propileno
RU2007117488A (ru) Способ получения изоцианатов
JP2009196991A5 (pt)
DE502005002540D1 (de) Verfahren zur Herstellung von Polyisocyanaten durch adiabate Phosgenierung von primären Aminen
KR102548305B1 (ko) 화학 반응을 위한 염화수소를 제공하는 방법
WO2009011225A1 (ja) ４－フルオロ－１，３－ジオキソラン－２－オンの製造方法
EP2137174A4 (en) PROCESS FOR PREPARING PROPYLENE OXIDE
WO2010115908A3 (de) Verfahren zur herstellung von isocyanaten
ATE335721T1 (de) Verfahren zur abtrennung und reinigung von lösungsmittel von einem reaktionsgemisch aus einer isocyanatsynthese
WO2009024446A3 (de) Verfahren und vorrichtung zur oxidation organischer verbindungen
WO2010052230A3 (de) Verfahren zur herstellung von isocyanaten
JP2012532918A (ja) ジフェニルメタンジイソシアネート類の明色イソシアネートの製造方法
JP2012532909A (ja) 明色ジフェニルメタンイソシアネート類の製造方法
BRPI0418975A (pt) processo para a produção de um poliisocianato, e, poliisocianato
KR960022451A (ko) 유기 이소시아네이트의 연속 제조 방법
PT1401802E (pt) Processo para a preparação de isocianatos
TW200502229A (en) Method for producing 4-fluoro-1,3-dioxolan-2-one
DE502004010159D1 (de) Verfahren zur herstellung von polyisocyanaten

Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time