ES2195815T3 - Procedimiento para purificar isocianatos organicos. - Google Patents
Procedimiento para purificar isocianatos organicos.Info
- Publication number
- ES2195815T3 ES2195815T3 ES00109114T ES00109114T ES2195815T3 ES 2195815 T3 ES2195815 T3 ES 2195815T3 ES 00109114 T ES00109114 T ES 00109114T ES 00109114 T ES00109114 T ES 00109114T ES 2195815 T3 ES2195815 T3 ES 2195815T3
- Authority
- ES
- Spain
- Prior art keywords
- isocianates
- procedure
- thiols
- alcohols
- optional
- 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
- C07C263/20—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Procedimiento para purificar isocianatos o mezclas de isocianatos orgánicos, caracterizado porque se calientan isocianatos o mezclas de isocianatos orgánicos con en total 0, 01 a 10% en peso, respecto a la cantidad de los isocianatos o mezclas de isocianatos orgánicos de compuestos de la estructura conforme a la fórmula (I) o mezclas de compuestos de la estructura conforme a la fórmula (I) en la que X representa O, S y R, R'' independientemente entre sí representan H, alquilo C1-C36, arilo C6-C36, cicloalquilo C3-C36 y aralquilo C7-C36, pudiendo estar los restos R y R'' unidos mediante un anillo o pudiendo estar presentes en los restos R y/o R'' otros grupos primarios y secundarios X-H, así como otros grupos funcionales que no reaccionan con isocianatos, o fenoles, durante por lo menos 5 min, a 100 hasta 250ºC, con o sin un disolvente inerte, no reactivo frente a grupos isocianato, si es necesario a presión elevada o presión reducida, simultánea o subsiguientemente se purga con un gas inerte y/o se procesa mediante destilación y/o mediante extracción.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19922572A DE19922572A1 (de) | 1999-05-17 | 1999-05-17 | Verfahren zur Reinigung von organischen Isocyanaten, die so gereinigten organischen Isocyanate und ihre Verwendung |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2195815T3 true ES2195815T3 (es) | 2003-12-16 |
Family
ID=7908275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES00109114T Expired - Lifetime ES2195815T3 (es) | 1999-05-17 | 2000-05-04 | Procedimiento para purificar isocianatos organicos. |
Country Status (7)
Country | Link |
---|---|
US (1) | US6395925B1 (es) |
EP (1) | EP1053998B1 (es) |
JP (1) | JP2000327653A (es) |
AT (1) | ATE236874T1 (es) |
CA (1) | CA2307992A1 (es) |
DE (2) | DE19922572A1 (es) |
ES (1) | ES2195815T3 (es) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SI1374906T1 (sl) * | 2002-06-17 | 2007-10-31 | Chiesi Farma Spa | Postopek za pripravo inkluzijskih spojin piroksakama: beta-ciklodekstrina |
DE10228734A1 (de) * | 2002-06-27 | 2004-01-22 | Bayer Ag | Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert |
JP2008524273A (ja) * | 2004-12-22 | 2008-07-10 | ランクセス・ドイチュランド・ゲーエムベーハー | 有機イソシアネート中の塩素含有成分を減少させるための方法 |
DE102006061536A1 (de) * | 2006-12-27 | 2008-07-03 | Bayer Materialscience Ag | Verfahren zur Konditionierung von Isocyanaten |
KR101627387B1 (ko) * | 2008-11-26 | 2016-06-03 | 헌트스만 인터내셔날, 엘엘씨 | 이소시아네이트의 제조 방법 |
EP2970108B1 (de) * | 2013-03-12 | 2018-06-27 | Covestro Deutschland AG | Verfahren zur herstellung von farbhellen tdi-polyisocyanaten |
JP2015010183A (ja) * | 2013-06-28 | 2015-01-19 | 旭化成ケミカルズ株式会社 | ジイソシアネート組成物 |
CN108586706B (zh) * | 2018-04-18 | 2021-06-29 | 万华化学集团股份有限公司 | 制备含有碳化二亚胺和/或脲酮亚胺类衍生物的改性异氰酸酯混合物的方法 |
CN114315648B (zh) * | 2022-01-11 | 2023-03-03 | 黎明化工研究设计院有限责任公司 | 一种降低异氰酸酯中水解氯含量的方法 |
Family Cites Families (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE271820C (es) | 1906-01-30 | 1900-01-01 | ||
DE1138040B (de) | 1960-03-30 | 1962-10-18 | Mobay Chemical Corp | Entfernung von hydrolysierbarem Chlor und Verringerung der Aziditaet aus/bzw. von organischen Isocyanaten |
US3179680A (en) | 1962-10-31 | 1965-04-20 | Olin Mathieson | Purification of organic isocyanates |
US3274225A (en) | 1963-01-04 | 1966-09-20 | Mobay Chemical Corp | Method for producing organic polyisocyanates substantially free of sediment |
US3219678A (en) | 1963-02-28 | 1965-11-23 | Olin Mathieson | Process for reducing the hydrolyzable chlorine content of organic isocyanates |
US3458558A (en) | 1963-10-25 | 1969-07-29 | Allied Chem | Purification of isocyanates by reducing the hydrolyzable chlorine content |
US3264336A (en) | 1964-09-11 | 1966-08-02 | Mobay Chemical Corp | Purification of isocyanates by reduction of the hydrolyzable chlorine and acid content |
JPS424137B1 (es) | 1964-10-23 | 1967-02-21 | ||
GB1111581A (en) | 1965-02-09 | 1968-05-01 | Ici Ltd | Process for the purification of organic diisocyanates |
GB1080717A (en) | 1965-07-30 | 1967-08-23 | Ici Ltd | Purification of crude organic polyisocyanates |
GB1112450A (en) | 1965-11-11 | 1968-05-08 | Olin Mathieson | Purification of organic isocyanates |
GB1186896A (en) | 1966-05-10 | 1970-04-08 | Takeda Chemical Industries Ltd | A method for the Purification of Xylylene Diisocyanate |
JPS4510329B1 (es) | 1967-04-17 | 1970-04-14 | ||
GB1229181A (es) | 1968-08-01 | 1971-04-21 | ||
BE756979A (fr) | 1969-10-04 | 1971-03-16 | Bayer Ag | Procede de purification du diphenylmethane-4,4' -diisocyanate |
US3759971A (en) | 1971-01-20 | 1973-09-18 | Jefferson Chem Co Inc | Purification of isocyanates |
BE786596A (fr) | 1971-07-30 | 1973-01-22 | Ici Ltd | Purification d'isocyanates organiques |
US3793362A (en) | 1971-10-18 | 1974-02-19 | Upjohn Co | Reduction of acidic impurities in polymethylene polyphenylisocyanates |
GB1384065A (en) * | 1971-11-30 | 1975-02-19 | Ici Ltd | Process for the purification of organic isocyanates |
US3857871A (en) | 1972-01-03 | 1974-12-31 | Upjohn Co | Process for reducing the acidity and hydrolyzable chloride content of polyisocyanates |
DE2210607A1 (de) | 1972-03-04 | 1973-09-06 | Bayer Ag | Verfahren zur herstellung von nicht vergilbendem diisocyanato-diphenylmethan |
US3799963A (en) | 1972-05-12 | 1974-03-26 | Olin Corp | Purification of isocyanates reducing the hydrolyzable chlorine and acid content |
GB1347647A (en) | 1973-01-16 | 1974-02-27 | Ici Ltd | Process for the purification of organic isocyanates |
US3853936A (en) | 1973-02-05 | 1974-12-10 | Olin Corp | Process for distillation of toluene diisocyanate |
GB1458747A (es) | 1974-04-08 | 1976-12-15 | Ici Ltd | |
GB1459691A (en) | 1974-04-08 | 1976-12-22 | Imp Chemical Ind Ltdc | Isocyanates |
GB1517162A (en) | 1974-07-24 | 1978-07-12 | Shell Int Research | Purification of diisocyanate |
US4094894A (en) | 1977-03-23 | 1978-06-13 | E. I. Du Pont De Nemours And Company | Process of purifying aliphatic isocyanates |
SU806677A1 (ru) | 1978-10-03 | 1982-05-07 | Предприятие П/Я Г-4302 | Способ очистки органических изоцианатов |
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 |
ZA81606B (en) | 1980-01-30 | 1982-09-29 | Du Pont | Isocyanate purification process |
DE3047898A1 (de) * | 1980-12-19 | 1982-07-15 | Bayer Ag, 5090 Leverkusen | Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern und die verwendung von hierbei anfallenden isocyanate und carbamidsaeureester aufweisenden gemischen zur herstellung von isocyanaten |
JPS5988452A (ja) | 1982-11-09 | 1984-05-22 | Mitsui Toatsu Chem Inc | 有機イソシアナ−トの精製方法 |
JPS59108753A (ja) | 1982-12-14 | 1984-06-23 | Mitsui Toatsu Chem Inc | トリレンジイソシアナ−トの品質改良方法 |
JPS59172450A (ja) | 1983-03-18 | 1984-09-29 | Mitsui Toatsu Chem Inc | 有機イソシアナ−トの品質改良方法 |
JPS61161250A (ja) | 1985-01-11 | 1986-07-21 | Asahi Chem Ind Co Ltd | 有機イソシアナ−トの精製法 |
DD271820A3 (de) | 1987-12-29 | 1989-09-20 | Schwarzheide Synthesewerk Veb | Verfahren zur reinigung aromatischer rohrisocyanate |
DD288599A5 (de) | 1989-10-24 | 1991-04-04 | Veb Synthesewerk Schwarzheide,De | Reinigungsverfahren organischer isocyanate von chlorhaltigen verbindungen |
DD285593A5 (de) | 1989-10-24 | 1990-12-19 | Tu Dresden,Dd | Verfahren zur reinigung organischer isocyanate |
DD288598A5 (de) | 1989-10-24 | 1991-04-04 | Veb Synthesewerk Schwarzheide,De | Verfahren zur reinigung organischer isocyanate von chlorhaltigen verbindungen |
DD288594A5 (de) | 1989-10-24 | 1991-04-04 | Veb Synthesewerk Schwarzheide,De | Verfahren zur reinigung organischer isocyanate von hydrolysierbaren chlorverbindungen |
DD288596A5 (de) | 1989-10-24 | 1991-04-04 | Veb Synthesewerk Schwarzheide,De | Verfahren zur reinigung organischer isocyanate von chlorverbindungen |
DD288597A5 (de) | 1989-10-24 | 1991-04-04 | Veb Synthesewerk Schwarzheide,De | Reinigungsverfahren organischer isocyanate von chlorverbindungen |
DD288595A5 (de) * | 1989-10-24 | 1991-04-04 | Veb Synthesewerk Schwarzheide,De | Reinigungsverfahren organischer isocyanate von hydrolysierbaren chlorverbindungen |
DE4124318A1 (de) | 1991-07-23 | 1993-01-28 | Bayer Ag | Verfahren zur reinigung von polyisocyanaten, die so gereinigten polyisocyanate und ihre verwendung |
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 |
JP3229710B2 (ja) | 1993-06-08 | 2001-11-19 | 三井化学株式会社 | 有機イソシアナート化合物の精製方法 |
JP2915784B2 (ja) | 1994-04-13 | 1999-07-05 | 昭和電工株式会社 | 脂肪族イソシアナートの精製方法 |
JP4443637B2 (ja) | 1996-06-05 | 2010-03-31 | 昭和電工株式会社 | イソシアナート化合物の精製方法 |
-
1999
- 1999-05-17 DE DE19922572A patent/DE19922572A1/de not_active Withdrawn
-
2000
- 2000-05-04 AT AT00109114T patent/ATE236874T1/de not_active IP Right Cessation
- 2000-05-04 DE DE50001675T patent/DE50001675D1/de not_active Expired - Lifetime
- 2000-05-04 ES ES00109114T patent/ES2195815T3/es not_active Expired - Lifetime
- 2000-05-04 EP EP00109114A patent/EP1053998B1/de not_active Expired - Lifetime
- 2000-05-10 CA CA002307992A patent/CA2307992A1/en not_active Abandoned
- 2000-05-11 US US09/569,480 patent/US6395925B1/en not_active Expired - Lifetime
- 2000-05-15 JP JP2000141585A patent/JP2000327653A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1053998B1 (de) | 2003-04-09 |
ATE236874T1 (de) | 2003-04-15 |
DE19922572A1 (de) | 2000-11-23 |
CA2307992A1 (en) | 2000-11-17 |
JP2000327653A (ja) | 2000-11-28 |
US6395925B1 (en) | 2002-05-28 |
EP1053998A1 (de) | 2000-11-22 |
DE50001675D1 (de) | 2003-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK0879236T3 (da) | Derivater af camptothecin til anvendelse ved behandling af cancer | |
WO2001062346A3 (en) | Destruction of energetic materials | |
ES2195815T3 (es) | Procedimiento para purificar isocianatos organicos. | |
DE60123911D1 (de) | Verfahren zur Herstellung von Aryloctanoyl-amiden | |
ATE57946T1 (de) | Schlagzaehe polyamid-formmassen. | |
ATE458484T1 (de) | ßVERFAHREN UND ZWISCHENPRODUKTE ZUR HERSTELLUNG VON STATINEN; INSBESONDERE VON ROSUVASTATINß | |
MY134799A (en) | Catalyst comprising cyclic acylurea compound and process for producing organic compounds using the catalyst | |
ES8200357A1 (es) | Un proceso para la produccion de sulfenamidas | |
BR8804985A (pt) | Processo para recuperar trimetoxissilano a partir de uma mistura de trimetoxissilano e metanol,mistura esta capaz de formar um azeotropo | |
DE502004005133D1 (de) | Verfahren zur herstellung von 4-fluor-1,3-dioxolan-2-on | |
JPS5452043A (en) | Preparation of peroxide | |
ES2090238T3 (es) | Derivados benzhidriloxietilpiperidilos de acidos alifaticos y su aplicacion en el tratamiento del asma y de sus alergias. | |
DK159457C (da) | Analogifremgangsmaade til fremstilling af 7alfa-acylthio-15,16-methylen-3-oxo-17alfa-pregna-1,4-dien-21,17-carbolactoner | |
DE60111063D1 (de) | Verfahren zur herstellung von aromatischen aminen | |
KR960022693A (ko) | 부분적으로 보호된 페놀성 수지의 제조방법 | |
ATE9992T1 (de) | 3-(buta-1',3'-dienyl)-substituierte derivate der cyclopropan-1-carbonsaeure, zusammensetzungen zur bekaempfung von pflanzenund warmblueterschaedlingen, sowie die parfuemierenden zusammensetzungen, die sie enthalten; ihre herstellung. | |
BR0107822A (pt) | Processo para a obtenção de ácido fórmico anidro ou substancialmente anidro, uso de uma carboxamida, e, aparelho para realizar um processo | |
JPS6469A (en) | Novel prolinal derivative, production thereof and drug for alleviating amnesia containing said derivative | |
DE60021481D1 (de) | Verfahren zur Herstellung von N-Alk(en)oxy- oder N-Aryloxy-carbonyl-isothiocyanaten sowie deren Derivate in Anwesenheit eines N,N-Dialkyl-arylamins als Katalysator | |
CR7832A (es) | Tritiocarbonatos de cianometilo como nematicidas | |
PT82071B (pt) | Processo para a preparacao de derivados de homocisteina tiolactona | |
ATE11039T1 (de) | Cyclohexan-1,3-dion-derivate, verfahren zu ihrer herstellung und ihre verwendung zur bekaempfung unerwuenschten pflanzenwuchses. | |
Tsutsui et al. | Protecting group for carboxyl function. Cleavage of 2-tosylethyl esters with fluoride ion in non-aqueous media | |
ES8707235A3 (es) | Procedimiento para la obtencion de la 6-(2-(4-(bis(4-fluorofenil)metileno)piperidino)etil)-7-metil-5h-tiazolo(3,2-a)-pirimidin-5-ona | |
JPS5543021A (en) | Preparation of 2,2'-bisphenol sulfoxide derivative |