BRPI0900468A2 - processo para a preparação de isocianatos - Google Patents

processo para a preparação de isocianatos

Info

Publication number
BRPI0900468A2
BRPI0900468A2 BRPI0900468-8A BRPI0900468A BRPI0900468A2 BR PI0900468 A2 BRPI0900468 A2 BR PI0900468A2 BR PI0900468 A BRPI0900468 A BR PI0900468A BR PI0900468 A2 BRPI0900468 A2 BR PI0900468A2
Authority
BR
Brazil
Prior art keywords
isocyanates
preparation
phosgene
depletion
recycling
Prior art date
Application number
BRPI0900468-8A
Other languages
English (en)
Inventor
Wolfgang Lorenz
Matthias B Hm
Richard Adamson
Friedhelm Steffens
Anke Hielscher
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 BRPI0900468A2 publication Critical patent/BRPI0900468A2/pt

Links

Classifications

    • 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
    • C01B7/03—Preparation from chlorides
    • C01B7/035—Preparation of hydrogen chloride from chlorides
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness

Landscapes

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

Abstract

PROCESSO PARA A PREPARAçãO DE ISOCIANATOS. A presente invenção refere-se a um processo para a preparação de isocianatos, por reação das aminas correspondentes com fosgênio, condensação da mistura de gases nesse caso resultante, esgotamento da fase líquida nesse caso obtida e reciclo do solvente assim obtido novamente de maneira líquida. Os componentes gasosos são ulteriormente recuperados, a seguir, em uma absorção.
BRPI0900468-8A 2008-02-19 2009-02-12 processo para a preparação de isocianatos BRPI0900468A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008009761A DE102008009761A1 (de) 2008-02-19 2008-02-19 Verfahren zur Herstellung von Isocyanaten

Publications (1)

Publication Number Publication Date
BRPI0900468A2 true BRPI0900468A2 (pt) 2009-10-06

Family

ID=40635865

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0900468-8A BRPI0900468A2 (pt) 2008-02-19 2009-02-12 processo para a preparação de isocianatos

Country Status (7)

Country Link
US (1) US7645900B2 (pt)
EP (1) EP2093215B1 (pt)
JP (1) JP5366580B2 (pt)
KR (1) KR101586497B1 (pt)
CN (1) CN101514172B (pt)
BR (1) BRPI0900468A2 (pt)
DE (1) DE102008009761A1 (pt)

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FR2965490B1 (fr) 2010-09-30 2013-01-11 Aet Group Dispositif et procede pour la phosgenation en continu
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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
PT2912010T (pt) * 2012-10-24 2017-03-02 Basf Se Processo para a produção de isocianatos por meio da fosgenação de aminas na fase líquida
US9266824B2 (en) 2014-01-13 2016-02-23 Warsaw Orthopedic, Inc. Methods and compositions for making an amino acid triisocyanate
EP2949622B1 (de) * 2014-05-27 2022-03-09 Covestro Intellectual Property GmbH & Co. KG Verfahren zur verarbeitung von chlorwasserstoff aus der isocyanatherstellung
CN104326942B (zh) * 2014-10-10 2016-05-18 青岛科技大学 一种小品种异氰酸酯制备过程中连续脱除光气的方法
CN104326941B (zh) * 2014-11-05 2016-07-13 华玉叶 一种浓缩粗多异氰酸酯的方法
WO2017001320A1 (de) 2015-06-29 2017-01-05 Covestro Deutschland Ag Verfahren zur bereitstellung von chlorwasserstoff für chemische umsetzungen
EP3322692B1 (de) 2015-07-16 2019-07-03 Covestro Deutschland AG Verfahren zur herstellung von isocyanaten
HUE047167T2 (hu) 2015-09-24 2020-04-28 Covestro Deutschland Ag Eljárás izocianátok elõállítására
US10280135B2 (en) 2015-09-30 2019-05-07 Covestro Deutschland Ag Method for producing isocyanates
KR20190042680A (ko) 2016-09-01 2019-04-24 코베스트로 도이칠란트 아게 이소시아네이트를 제조하는 방법
CN106693869B (zh) * 2016-12-23 2019-08-16 马鞍山科英合成材料有限公司 一种封闭异氰酸酯循环反应釜
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
WO2018184980A1 (de) * 2017-04-03 2018-10-11 Covestro Deutschland Ag Reinigungsvorrichtung für gasströme aus der isocyanatherstellung
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
PT3735405T (pt) 2018-01-05 2021-12-29 Covestro Intellectual Property Gmbh & Co Kg Processo para fabrico de di-isocianatos de metilenodifenileno e poli-isocianatos de polimetileno-polifenileno
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
US10626084B2 (en) 2018-08-03 2020-04-21 Covestro Llc Method for producing two isocyanates
CN120774813A (zh) 2019-12-18 2025-10-14 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
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
US20240300817A1 (en) * 2021-02-17 2024-09-12 Basf Se Method of separating phosgene and hydrogen chloride
CN113332835B (zh) * 2021-06-29 2024-08-23 中国海洋石油集团有限公司 一种回收低压光气的装置及方法
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
KR20240148832A (ko) 2022-02-10 2024-10-11 코베스트로 도이칠란트 아게 이소시아네이트를 제조하는 방법
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
CN114920668B (zh) * 2022-05-13 2023-10-13 万华化学集团股份有限公司 一种制备低氯代杂质异氰酸酯的方法
CN115155467B (zh) * 2022-08-09 2023-10-10 宁夏瑞泰科技股份有限公司 采用液相光气化合成六亚甲基二异氰酸酯的系统及方法
CN115181006A (zh) * 2022-08-19 2022-10-14 浙江佳境环保科技有限公司 一种氯苯废液的回收方法及其制备得到的氯苯
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
WO2025065554A1 (zh) * 2023-09-28 2025-04-03 万华化学集团股份有限公司 低卤代脂肪环烃物质含量聚合mdi及其制备方法和应用

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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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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
DE10260027A1 (de) * 2002-12-19 2004-07-08 Basf Ag Verfahren zur Abtrennung und Reinigung von Lösungsmittel von einem Reaktionsgemisch aus einer Isocyanatsynthese
DE10260084A1 (de) 2002-12-19 2004-07-01 Basf Ag Auftrennung eines Stoffgemisches aus Clorwasserstoff und Phosgen
DE10334350B3 (de) 2003-07-25 2005-02-03 Bundesrepublik Deutschland, vertr. d. d. Bundesministerium für Wirtschaft und Arbeit, dieses vertr. d. d. Präsidenten der Physikalisch-Technischen Bundesanstalt Verfahren zur Bestimung der Brechzahl bei interferometrischen Längenmessungen und Interferometeranordnung hierfür
DE102004044592A1 (de) 2004-09-13 2006-03-30 Basf Ag Verfahren zur Trennung von Chlorwasserstoff und Phosgen
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DE102006022448A1 (de) * 2006-05-13 2007-11-15 Bayer Materialscience Ag Verfahren zur Herstellung von Isocyanaten

Also Published As

Publication number Publication date
EP2093215A1 (de) 2009-08-26
JP2009196991A (ja) 2009-09-03
KR101586497B1 (ko) 2016-01-18
US20090209784A1 (en) 2009-08-20
EP2093215B1 (de) 2015-04-22
CN101514172B (zh) 2014-12-17
CN101514172A (zh) 2009-08-26
KR20090089812A (ko) 2009-08-24
US7645900B2 (en) 2010-01-12
JP5366580B2 (ja) 2013-12-11
DE102008009761A1 (de) 2009-08-27

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Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2308 DE 31/03/2015.