DE60321087D1 - Verfahren zur Reinigung von Toluoldiisocyanat-Gemischen - Google Patents
Verfahren zur Reinigung von Toluoldiisocyanat-GemischenInfo
- Publication number
- DE60321087D1 DE60321087D1 DE60321087T DE60321087T DE60321087D1 DE 60321087 D1 DE60321087 D1 DE 60321087D1 DE 60321087 T DE60321087 T DE 60321087T DE 60321087 T DE60321087 T DE 60321087T DE 60321087 D1 DE60321087 D1 DE 60321087D1
- Authority
- DE
- Germany
- Prior art keywords
- distillation column
- enriched
- toluenediisocyanate
- phosgene
- feed
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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
- C07C263/18—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)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02013461A EP1371634A1 (de) | 2002-06-14 | 2002-06-14 | Verfahren zur Reinigung von Toluoldiisocyanatgemischen |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60321087D1 true DE60321087D1 (de) | 2008-07-03 |
Family
ID=29558346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60321087T Expired - Lifetime DE60321087D1 (de) | 2002-06-14 | 2003-06-02 | Verfahren zur Reinigung von Toluoldiisocyanat-Gemischen |
Country Status (10)
Country | Link |
---|---|
US (1) | US6803483B2 (de) |
EP (2) | EP1371634A1 (de) |
JP (1) | JP4383098B2 (de) |
KR (1) | KR100984460B1 (de) |
CN (1) | CN1239475C (de) |
AT (1) | ATE396172T1 (de) |
CA (1) | CA2431441A1 (de) |
DE (1) | DE60321087D1 (de) |
MX (1) | MXPA03005247A (de) |
TW (1) | TWI271212B (de) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2271171T3 (es) * | 2002-10-22 | 2007-04-16 | Bayer Materialscience Ag | Procedimiento para la purificacion de toluendiisocianato que incorpora una columna de destilacion de pared divisoria para la purificacion final. |
DE10260027A1 (de) * | 2002-12-19 | 2004-07-08 | Basf Ag | Verfahren zur Abtrennung und Reinigung von Lösungsmittel von einem Reaktionsgemisch aus einer Isocyanatsynthese |
DE10260092A1 (de) * | 2002-12-19 | 2004-07-01 | Basf Ag | Verfahren zur Reinigung von Isocyanaten |
WO2007082789A1 (de) * | 2006-01-13 | 2007-07-26 | Basf Se | Isocyanathaltige zubereitungen |
DE102006022448A1 (de) * | 2006-05-13 | 2007-11-15 | Bayer Materialscience Ag | Verfahren zur Herstellung von Isocyanaten |
US8030522B2 (en) * | 2006-06-07 | 2011-10-04 | Bayer Materialscience Llc | Process for the production of toluene diisocyanate |
EP2042485A1 (de) * | 2007-09-28 | 2009-04-01 | Huntsman International Llc | Verfahren zur Fraktionierung einer Mischung von Polyisocyanaten |
JP5479675B2 (ja) * | 2007-11-14 | 2014-04-23 | 三井化学株式会社 | トルエンジイソシアネートの製造方法 |
KR101652544B1 (ko) * | 2008-10-02 | 2016-08-30 | 다우 글로벌 테크놀로지스 엘엘씨 | 이소시아네이트 혼합물 정제 장치, 시스템 및 방법 |
EP2445869B1 (de) | 2009-06-26 | 2014-12-24 | Basf Se | Prozess zur herstellung von isocyanaten, bevorzugt diisocyanate und polyisocyanate mit lösungsmittelrückführung |
CN101671277B (zh) * | 2009-09-18 | 2011-12-28 | 天津大学 | 一种甲苯二异氰酸酯连续生产中热集成的溶剂回收方法 |
KR101268285B1 (ko) | 2011-04-19 | 2013-05-28 | 동아대학교 산학협력단 | 내부 열교환 증류탑이 구비된 2 성분 분별증류장치 |
DE102011087654A1 (de) | 2011-12-02 | 2013-06-06 | Bayer Materialscience Aktiengesellschaft | Verfahren zur Herstellung von Isocyanaten |
ES2658214T3 (es) | 2012-03-19 | 2018-03-08 | Covestro Deutschland Ag | Procedimiento para la preparación de isocianatos |
EP2953928B1 (de) * | 2013-02-08 | 2017-08-09 | Covestro Deutschland AG | Verfahren zur abtrennung eines durch phosgenierung eines primären amins in der gasphase hergestellten isocyanats aus dem gasförmigen rohprodukt der phosgenierung |
CA2900811A1 (en) * | 2013-02-11 | 2014-08-14 | Gtc Technology Us Llc | A method for reducing energy consumption by thermal coupling |
CN105339062B (zh) * | 2013-02-21 | 2021-03-26 | Gtc科技美国有限责任公司 | 使用分隔塔的分离方法 |
US9840461B2 (en) | 2014-03-27 | 2017-12-12 | Covestro Deutschland Ag | Method for operating a gas-phase phosgenation plant |
KR20160137544A (ko) | 2014-03-27 | 2016-11-30 | 코베스트로 도이칠란트 아게 | 기체 상 포스겐화 플랜트의 가동 방법 |
RU2017102015A (ru) | 2014-06-24 | 2018-07-24 | Ковестро Дойчланд Аг | Способ получения химических продуктов с производственными простоями |
CN104311454A (zh) * | 2014-11-05 | 2015-01-28 | 朱忠良 | 一种甲苯二异氰酸酯的分离方法 |
HUE060897T2 (hu) | 2015-09-30 | 2023-04-28 | Covestro Intellectual Property Gmbh & Co Kg | Eljárás izocianátok elõállítására |
CN105502397B (zh) * | 2015-12-04 | 2017-11-10 | 沧州大化股份有限公司 | 一种光气混合物脱除CCl4的方法 |
PT3500553T (pt) | 2016-08-17 | 2021-07-29 | Covestro Deutschland Ag | Processo para a produção de isocianato e pelo menos um outro produto químico num sistema de produção integrada |
KR102039089B1 (ko) | 2016-12-15 | 2019-11-26 | 한화케미칼 주식회사 | 톨루엔디이소시아네이트 정제 방법 |
EP3421426A1 (de) * | 2017-06-29 | 2019-01-02 | Covestro Deutschland AG | Energieeffizientes verfahren zur bereitstellung von phosgen-dampf |
CN110433517A (zh) * | 2019-08-23 | 2019-11-12 | 安徽广信农化股份有限公司 | 一种环己基异氰酸酯精馏塔 |
CN113274754A (zh) * | 2021-06-04 | 2021-08-20 | 浙江正荣香料有限公司 | 一种松节油精馏工艺 |
CN113321599A (zh) * | 2021-06-30 | 2021-08-31 | 甘肃银光聚银化工有限公司 | 一种制备高纯度间苯二亚甲基二异氰酸酯的方法 |
CN113651719B (zh) * | 2021-09-16 | 2023-08-04 | 宁夏瑞泰科技股份有限公司 | 一种六亚甲基二异氰酸酯光化液的精制方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2452805A1 (de) * | 1974-11-07 | 1976-05-20 | Basf Ag | Verfahren zur abtrennung von rueckstaenden der toluylendiisocyanatherstellung |
DE3736988C1 (de) * | 1987-10-31 | 1989-03-23 | Bayer Ag | Verfahren zur kontinuierlichen Herstellung von organischen Mono- und Polyisocyanaten |
JPH051014A (ja) * | 1991-01-28 | 1993-01-08 | Dow Chem Co:The | トルエンジイソシアネート中の加水分解性塩化物の減少方法 |
DE4217019A1 (de) * | 1992-05-22 | 1993-11-25 | Bayer Ag | Verfahren zur Herstellung von aromatischen Diisocyanaten |
-
2002
- 2002-06-14 EP EP02013461A patent/EP1371634A1/de not_active Withdrawn
-
2003
- 2003-06-02 EP EP03012502A patent/EP1371636B1/de not_active Expired - Lifetime
- 2003-06-02 AT AT03012502T patent/ATE396172T1/de not_active IP Right Cessation
- 2003-06-02 DE DE60321087T patent/DE60321087D1/de not_active Expired - Lifetime
- 2003-06-09 CA CA002431441A patent/CA2431441A1/en not_active Abandoned
- 2003-06-09 US US10/457,105 patent/US6803483B2/en not_active Expired - Lifetime
- 2003-06-12 KR KR1020030037770A patent/KR100984460B1/ko active IP Right Grant
- 2003-06-12 MX MXPA03005247A patent/MXPA03005247A/es active IP Right Grant
- 2003-06-13 JP JP2003168866A patent/JP4383098B2/ja not_active Expired - Fee Related
- 2003-06-13 CN CNB031410820A patent/CN1239475C/zh not_active Expired - Fee Related
- 2003-06-13 TW TW092116029A patent/TWI271212B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2431441A1 (en) | 2003-12-14 |
EP1371636B1 (de) | 2008-05-21 |
CN1239475C (zh) | 2006-02-01 |
KR20030096038A (ko) | 2003-12-24 |
CN1467203A (zh) | 2004-01-14 |
TW200407184A (en) | 2004-05-16 |
ATE396172T1 (de) | 2008-06-15 |
EP1371636A1 (de) | 2003-12-17 |
US20030233013A1 (en) | 2003-12-18 |
TWI271212B (en) | 2007-01-21 |
KR100984460B1 (ko) | 2010-09-29 |
US6803483B2 (en) | 2004-10-12 |
JP4383098B2 (ja) | 2009-12-16 |
EP1371634A1 (de) | 2003-12-17 |
MXPA03005247A (es) | 2004-09-06 |
JP2004155761A (ja) | 2004-06-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |