PT2640695E - Processo para a purificação de misturas contendo 4,4¿-metilenodifenildi-isocianato - Google Patents
Processo para a purificação de misturas contendo 4,4¿-metilenodifenildi-isocianato Download PDFInfo
- Publication number
- PT2640695E PT2640695E PT117826198T PT11782619T PT2640695E PT 2640695 E PT2640695 E PT 2640695E PT 117826198 T PT117826198 T PT 117826198T PT 11782619 T PT11782619 T PT 11782619T PT 2640695 E PT2640695 E PT 2640695E
- Authority
- PT
- Portugal
- Prior art keywords
- diphenyl diisocyanate
- methylene diphenyl
- purifying mixtures
- purifying
- mixtures
- Prior art date
Links
Classifications
-
- 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
-
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10191560 | 2010-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
PT2640695E true PT2640695E (pt) | 2015-02-09 |
Family
ID=43706446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT117826198T PT2640695E (pt) | 2010-11-17 | 2011-11-15 | Processo para a purificação de misturas contendo 4,4¿-metilenodifenildi-isocianato |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP2640695B1 (pt) |
JP (1) | JP6046043B2 (pt) |
KR (1) | KR101898743B1 (pt) |
CN (1) | CN103313967B (pt) |
BR (1) | BR112013012096A2 (pt) |
ES (1) | ES2533977T3 (pt) |
PT (1) | PT2640695E (pt) |
WO (1) | WO2012065995A1 (pt) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9505711B2 (en) | 2010-11-17 | 2016-11-29 | Basf Se | Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate |
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 |
CN109180531B (zh) * | 2018-07-25 | 2021-09-07 | 万华化学集团股份有限公司 | 一种获取保质期延长的mdi-50的方法 |
CN112142623A (zh) * | 2019-06-27 | 2020-12-29 | 万华化学(宁波)有限公司 | 一种低活性的mdi-50产品的制备方法及应用 |
CN111848455B (zh) * | 2020-08-17 | 2023-05-30 | 万华化学集团股份有限公司 | 一种降低异氰酸酯产品色度的方法和一种异氰酸酯精馏塔气相采出流量的自动控制方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB798636A (en) * | 1955-07-12 | 1958-07-23 | Du Pont | Recovery of organic isocyanates |
DE1923214B2 (de) | 1969-05-07 | 1973-08-02 | Verfahren zur gleichzeitigen herstellung von reinem 4,4'-diphenylmethandiisocyanat und einem polyphenyl-polymethylen-polyisocyanatgemisch, polyphenylpolymethylen-polyisocyanate und deren verwendung zur herstellung von polyurethanlacken | |
DE2631168B2 (de) * | 1976-07-10 | 1979-03-08 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Diisocyanatodiphenylmethan-Isomeren mit einem eingestellten Gehalt an Chlorverbindungen |
DE2933601C2 (de) | 1979-08-18 | 1985-07-11 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Gewinnung von Mischungen aus Diphenyl-methan-diisocyanat-Isomeren und gegebenenfalls reinem 4,4'-Diphenylmethan-diisocyanat mit einem geringen Gehalt an Uretdionen und hydrolysierbaren Chlorverbindungen |
DE3145010A1 (de) | 1981-11-12 | 1983-05-19 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von 4,4'-diisocyanatodiphenylmethan |
DD288599A5 (de) | 1989-10-24 | 1991-04-04 | Veb Synthesewerk Schwarzheide,De | Reinigungsverfahren organischer isocyanate von chlorhaltigen verbindungen |
JP3091979B2 (ja) * | 1991-09-03 | 2000-09-25 | 昭和電工株式会社 | 有機イソシアナートの精製法 |
JP2951782B2 (ja) * | 1991-12-17 | 1999-09-20 | 三井化学株式会社 | 4,4’−ジフェニルメタンジイソシアネートの製造方法 |
EP1475367B1 (de) | 2003-05-08 | 2010-07-07 | Bayer MaterialScience AG | Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane |
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 |
DE102005004170A1 (de) | 2005-01-29 | 2006-08-03 | Bayer Materialscience Ag | Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane |
DE102005055189A1 (de) | 2005-11-19 | 2007-05-24 | Bayer Materialscience Ag | Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat |
CN101003497B (zh) * | 2007-01-09 | 2010-05-19 | 宁波万华聚氨酯有限公司 | 二苯基甲烷二异氰酸酯的同分异构体混合物的蒸馏处理方法 |
-
2011
- 2011-11-15 BR BR112013012096A patent/BR112013012096A2/pt not_active IP Right Cessation
- 2011-11-15 WO PCT/EP2011/070159 patent/WO2012065995A1/de active Application Filing
- 2011-11-15 JP JP2013539231A patent/JP6046043B2/ja active Active
- 2011-11-15 PT PT117826198T patent/PT2640695E/pt unknown
- 2011-11-15 EP EP11782619.8A patent/EP2640695B1/de active Active
- 2011-11-15 KR KR1020137015178A patent/KR101898743B1/ko active IP Right Grant
- 2011-11-15 CN CN201180065233.4A patent/CN103313967B/zh active Active
- 2011-11-15 ES ES11782619.8T patent/ES2533977T3/es active Active
Also Published As
Publication number | Publication date |
---|---|
EP2640695B1 (de) | 2015-01-07 |
KR20130133208A (ko) | 2013-12-06 |
ES2533977T3 (es) | 2015-04-16 |
KR101898743B1 (ko) | 2018-09-13 |
EP2640695A1 (de) | 2013-09-25 |
JP2014504274A (ja) | 2014-02-20 |
JP6046043B2 (ja) | 2016-12-14 |
CN103313967A (zh) | 2013-09-18 |
BR112013012096A2 (pt) | 2016-08-16 |
WO2012065995A1 (de) | 2012-05-24 |
CN103313967B (zh) | 2014-12-24 |
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