BRPI0702581A - processo para produção de isocianatos - Google Patents

processo para produção de isocianatos

Info

Publication number
BRPI0702581A
BRPI0702581A BRPI0702581-5A BRPI0702581A BRPI0702581A BR PI0702581 A BRPI0702581 A BR PI0702581A BR PI0702581 A BRPI0702581 A BR PI0702581A BR PI0702581 A BRPI0702581 A BR PI0702581A
Authority
BR
Brazil
Prior art keywords
solvent
phosgene
isocyanates
production
subsequent separation
Prior art date
Application number
BRPI0702581-5A
Other languages
English (en)
Inventor
Berthold Keggenhoff
Heinrich Lokum
Matthias Boehm
Original Assignee
Bayer Materialscience Ag
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 Ag filed Critical Bayer Materialscience Ag
Publication of BRPI0702581A publication Critical patent/BRPI0702581A/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

Landscapes

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

Abstract

PROCESSO PARA PRODUçãO DE ISOCIANATOS. A presente invenção refere-se a um processo para produção de isocianatos, preferivelmente, di-e poliisocianatos da série difenilmetano (MDI), por reação de aminas dissolvidas em um solvente com fosgênio para os isocianatos correspondentes, subseqüente separação de cloridrato e fosgênio excedente, subseqüente separação da solução bruta que contém isocianatos em isocianatos e solvente, recondução do solvente e produção de soluções das aminas e de fosgênio, sendo que a parte do solvente, que é usada para produção da solução das aminas, apresenta conteúdos menores de fosgênio e diisocianato.
BRPI0702581-5A 2006-05-13 2007-05-14 processo para produção de isocianatos BRPI0702581A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006022448A DE102006022448A1 (de) 2006-05-13 2006-05-13 Verfahren zur Herstellung von Isocyanaten

Publications (1)

Publication Number Publication Date
BRPI0702581A true BRPI0702581A (pt) 2008-01-15

Family

ID=38370797

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0702581-5A BRPI0702581A (pt) 2006-05-13 2007-05-14 processo para produção de isocianatos

Country Status (11)

Country Link
US (2) US20070265465A1 (pt)
EP (1) EP1854783B1 (pt)
JP (1) JP5599129B2 (pt)
KR (1) KR101383411B1 (pt)
CN (1) CN101302174B (pt)
BR (1) BRPI0702581A (pt)
DE (1) DE102006022448A1 (pt)
ES (1) ES2527718T3 (pt)
PT (1) PT1854783E (pt)
RU (1) RU2446151C2 (pt)
TW (1) TW200808702A (pt)

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DE10260027A1 (de) * 2002-12-19 2004-07-08 Basf Ag Verfahren zur Abtrennung und Reinigung von Lösungsmittel von einem Reaktionsgemisch aus einer Isocyanatsynthese
WO2005032687A2 (en) * 2003-09-30 2005-04-14 Clark Arthur F Method for separating volatile components by dilutive distillation
DE102008009761A1 (de) 2008-02-19 2009-08-27 Bayer Materialscience Ag Verfahren zur Herstellung von Isocyanaten
HUE030997T2 (en) * 2008-11-26 2017-06-28 Huntsman Int Llc Process for the preparation of isocyanates
FR2940283B1 (fr) * 2008-12-18 2011-03-11 Perstorp Tolonates France Utilisation d'un reacteur de type piston pour la mise en oeuvre d'un procede de phosgenation.
KR101773630B1 (ko) * 2009-06-26 2017-08-31 바스프 에스이 용매 재순환을 이용한 이소시아네이트, 바람직하게는 디이소시아네이트 및 폴리이소시아네이트의 제조 방법
US20120123153A1 (en) * 2010-11-17 2012-05-17 Basf Se Method for purifying mixtures comprising 4,4'-methylenediphenyl diisocyanate
HUE035678T2 (en) 2012-03-19 2018-05-28 Covestro Deutschland Ag Process for the preparation of isocyanates
KR102209958B1 (ko) 2012-10-24 2021-02-01 바스프 에스이 액상으로의 아민의 포스겐화에 의한 이소시아네이트의 제조 방법
WO2015144658A1 (de) 2014-03-27 2015-10-01 Bayer Materialscience Ag Verfahren zur herstellung von isocyanaten
EP3160630B1 (de) 2014-06-24 2022-08-31 Covestro Intellectual Property GmbH & Co. KG Verfahren zur herstellung von chemischen produkten mit betriebsunterbrechungen
CN104402765B (zh) * 2014-10-10 2015-09-30 青岛科技大学 一种以异氰酸酯为中间体制备农药的方法
CN108348889B (zh) * 2015-09-24 2020-09-15 科思创德国股份有限公司 制备异氰酸酯的方法
WO2017055311A1 (de) 2015-09-30 2017-04-06 Covestro Deutschland Ag Verfahren zur herstellung von isocyanaten
CN108138340A (zh) 2015-10-15 2018-06-08 科思创德国股份有限公司 用于制备氨基官能的芳族化合物的方法
US10576392B2 (en) 2015-11-02 2020-03-03 Covestro Deutschland Ag Distillation column and use thereof for cleaning isocyanates
US10618871B2 (en) 2016-08-17 2020-04-14 Covestro Deutschland Ag Process for producing isocyanate and at least one further chemical product in an integrated production
WO2018041799A1 (de) 2016-09-01 2018-03-08 Covestro Deutschland Ag Verfahren zur herstellung von isocyanaten
US10703713B2 (en) 2016-12-21 2020-07-07 Covestro Deutschland Ag Process for preparing an isocyanate
CN108246050A (zh) * 2016-12-29 2018-07-06 重庆长风生物科技有限公司 一种气相法制备hdi的冷却装置及方法
US10919845B2 (en) * 2017-04-03 2021-02-16 Covestro Deutschland Ag Cleaning device for gas flows from isocyanate production
CN110997751B (zh) 2017-07-03 2022-07-15 科思创德国股份有限公司 用于通过使h-官能反应物与光气反应制备化学产品的生产设备及其运行方法
CN111630028B (zh) 2018-01-05 2022-12-06 科思创知识产权两合公司 制备亚甲基二亚苯基二异氰酸酯和多亚甲基多亚苯基多异氰酸酯的方法
KR102437607B1 (ko) * 2018-06-18 2022-08-26 한화솔루션 주식회사 지방족 이소시아네이트의 제조방법
US10851048B2 (en) 2018-11-13 2020-12-01 Covestro Deutschland Ag Process for preparing an isocyanate by partly adiabatically operated phosgenation of the corresponding amine
US10875827B2 (en) 2018-11-13 2020-12-29 Covestro Deutschland Ag Process for preparing an isocyanate by partly adiabatic phosgenation of the corresponding amine
CN109651201A (zh) * 2018-12-30 2019-04-19 安徽广信农化股份有限公司 一种合成异氰酸环己酯的废料处理工艺
CN110327848B (zh) * 2019-05-29 2022-02-18 江苏蓝丰生物化工股份有限公司 一种用于光气化反应的装置、光气化反应的生产工艺
JP2022547814A (ja) 2019-09-17 2022-11-16 コベストロ、ドイチュラント、アクチエンゲゼルシャフト イソシアネートを製造する方法
EP3798208A1 (de) * 2019-09-30 2021-03-31 Covestro Deutschland AG Verfahren zur destillation von isocyanaten
KR20220114554A (ko) 2019-12-18 2022-08-17 코베스트로 도이칠란트 아게 디페닐메탄 계열의 디- 및 폴리이소시아네이트를 생산하는 방법
CN115397808B (zh) 2020-05-15 2024-10-11 科思创德国股份有限公司 运行用于连续制备异氰酸酯的装置的方法
CN114380714B (zh) * 2020-10-16 2023-08-11 万华化学集团股份有限公司 光气化反应生产中的循环溶剂及其除杂方法
WO2022077429A1 (zh) * 2020-10-16 2022-04-21 万华化学集团股份有限公司 光气化反应生产中的循环溶剂及其除杂方法
CN115490829B (zh) * 2021-06-17 2025-04-01 万华化学集团股份有限公司 一种异氰酸酯组合物及其制备方法、一种光学材料
CN114044746A (zh) * 2021-12-07 2022-02-15 万华化学集团股份有限公司 一种低pi类物质含量异氰酸酯及其制备方法
CN114149345B (zh) * 2021-12-09 2023-04-21 万华化学集团股份有限公司 一种制备异氰酸酯的方法
CN114805131A (zh) * 2022-04-26 2022-07-29 宁夏瑞泰科技股份有限公司 一种对苯二异氰酸酯的制备方法
CN115093349B (zh) * 2022-06-28 2024-06-25 万华化学集团股份有限公司 一种甲苯二异氰酸酯副产固体残渣净化溶剂的方法
CN118026893A (zh) * 2022-11-11 2024-05-14 万华化学（宁波）有限公司 一种低单苯环类杂质含量的粗异氰酸酯的生产工艺
CN118047697A (zh) * 2022-11-17 2024-05-17 万华化学集团股份有限公司 一种提高异氰酸酯生产稳定运行和产品质量的方法
CN116217439B (zh) * 2023-01-03 2025-05-13 万华化学集团股份有限公司 一种光气化制备mdi的循环溶剂及其提纯方法
CN119707703B (zh) * 2023-09-26 2025-12-26 万华化学（宁波）有限公司 一种异氰酸苯酯副产物的处理方法及其应用
CN119350188A (zh) * 2024-10-24 2025-01-24 万华化学集团股份有限公司 一种异氰酸酯的制备方法及其应用

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DE19817691A1 (de) * 1998-04-21 1999-10-28 Basf Ag Verfahren zur Herstellung von Mischungen aus Diphenylmehandiisocyanaten und Polyphenylen-polymethylen-polyisocyanaten mit vermindertem Gehalt an chlorierten Nebenprodukten und verminderter Jodfarbzahl
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DE19942299A1 (de) * 1999-09-04 2001-03-08 Basf Ag Verbessertes Verfahren zur Herstellung von Mono- und Oligo-Isocyanaten
EP1371633A1 (en) * 2002-06-14 2003-12-17 Bayer Ag Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column
EP1371634A1 (en) * 2002-06-14 2003-12-17 Bayer Ag Process for the purification of mixtures of toluenediisocyanate
DE10260027A1 (de) * 2002-12-19 2004-07-08 Basf Ag Verfahren zur Abtrennung und Reinigung von Lösungsmittel von einem Reaktionsgemisch aus einer Isocyanatsynthese
DE10260082A1 (de) * 2002-12-19 2004-07-01 Basf Ag Verfahren zur kontinuierlichen Herstellung von Isocyanaten
DE10261187A1 (de) * 2002-12-20 2004-07-08 Basf Ag Verfahren zur Herstellung von Isocyanaten
US20070232827A1 (en) * 2004-05-25 2007-10-04 Basf Aktiengesellschaft Isocyanate Production Method
WO2006022641A1 (en) * 2004-07-28 2006-03-02 Huntsman International Llc Process for the production of polyisocyanates

Also Published As

Publication number Publication date
US20100298596A1 (en) 2010-11-25
KR101383411B1 (ko) 2014-04-08
RU2446151C2 (ru) 2012-03-27
PT1854783E (pt) 2015-02-04
DE102006022448A1 (de) 2007-11-15
EP1854783A2 (de) 2007-11-14
EP1854783B1 (de) 2014-11-19
CN101302174A (zh) 2008-11-12
EP1854783A3 (de) 2009-06-03
KR20070110204A (ko) 2007-11-16
TW200808702A (en) 2008-02-16
JP5599129B2 (ja) 2014-10-01
CN101302174B (zh) 2013-10-30
JP2007302672A (ja) 2007-11-22
RU2007117488A (ru) 2008-11-20
ES2527718T3 (es) 2015-01-28
US20070265465A1 (en) 2007-11-15

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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