NO179511C - Fremgangsmåte for rensing av urent metylmetakrylat dannet fra acetoncyanhydrin - Google Patents
Fremgangsmåte for rensing av urent metylmetakrylat dannet fra acetoncyanhydrinInfo
- Publication number
- NO179511C NO179511C NO930900A NO930900A NO179511C NO 179511 C NO179511 C NO 179511C NO 930900 A NO930900 A NO 930900A NO 930900 A NO930900 A NO 930900A NO 179511 C NO179511 C NO 179511C
- Authority
- NO
- Norway
- Prior art keywords
- purification
- carried out
- methyl methacrylate
- methacrylamide
- methylmethacrylate
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/18—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group
- C07C67/22—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group from nitriles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/18—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group
- C07C67/20—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group from amides or lactams
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/58—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
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 |
---|---|---|---|
ITMI920602A IT1257282B (it) | 1992-03-16 | 1992-03-16 | Processo migliorato per la produzione di metilmetacrilato monomero da acetoncianidrina |
Publications (4)
Publication Number | Publication Date |
---|---|
NO930900D0 NO930900D0 (no) | 1993-03-11 |
NO930900L NO930900L (no) | 1993-09-17 |
NO179511B NO179511B (no) | 1996-07-15 |
NO179511C true NO179511C (no) | 1996-10-23 |
Family
ID=11362440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO930900A NO179511C (no) | 1992-03-16 | 1993-03-11 | Fremgangsmåte for rensing av urent metylmetakrylat dannet fra acetoncyanhydrin |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0561264B1 (no) |
AT (1) | ATE141253T1 (no) |
DE (1) | DE69303950T2 (no) |
ES (1) | ES2093298T3 (no) |
FI (1) | FI106196B (no) |
IT (1) | IT1257282B (no) |
NO (1) | NO179511C (no) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19803658A1 (de) * | 1998-01-30 | 1999-08-05 | Basf Ag | Verwendung von anionischen Flockungsmitteln bei der organisch-wässrigen Phasentrennung |
DE102006058251A1 (de) * | 2006-12-08 | 2008-06-12 | Evonik Röhm Gmbh | Verfahren und Vorrichtung zur Herstellung von Methacrylsäurealkylestern |
DE102006058250A1 (de) * | 2006-12-08 | 2008-06-12 | Evonik Röhm Gmbh | Integriertes Verfahren und Vorrichtung zur Herstellung von Methacrylsäureestern aus Aceton und Blausäure |
JP5432852B2 (ja) * | 2009-09-30 | 2014-03-05 | ローム アンド ハース カンパニー | メタクリル酸メチルの精製によって生じる流れから価値のある化合物を回収する方法 |
KR101860166B1 (ko) * | 2010-11-04 | 2018-05-21 | 롬 앤드 하스 캄파니 | 감소된 비아세틸 함량을 갖는 메틸 메타크릴레이트의 제조 방법 |
BR112017007928B1 (pt) | 2014-10-27 | 2022-05-17 | Rohm And Haas Company | Processo para a produção de metacrilato de metila |
BR112017007905B1 (pt) * | 2014-10-27 | 2021-11-30 | Rohm And Haas Company | Processo para a produção de metil metacrilato |
GB201704729D0 (en) | 2017-03-24 | 2017-05-10 | Lucite Int Uk Ltd | Method of producing methyl methacrylate or methacrylic acid |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57156438A (en) * | 1981-03-24 | 1982-09-27 | Mitsui Toatsu Chem Inc | Preparation of methyl methacrylate |
-
1992
- 1992-03-16 IT ITMI920602A patent/IT1257282B/it active IP Right Grant
-
1993
- 1993-03-10 DE DE69303950T patent/DE69303950T2/de not_active Expired - Lifetime
- 1993-03-10 AT AT93103810T patent/ATE141253T1/de not_active IP Right Cessation
- 1993-03-10 EP EP93103810A patent/EP0561264B1/en not_active Expired - Lifetime
- 1993-03-10 ES ES93103810T patent/ES2093298T3/es not_active Expired - Lifetime
- 1993-03-11 NO NO930900A patent/NO179511C/no not_active IP Right Cessation
- 1993-03-12 FI FI931108A patent/FI106196B/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0561264B1 (en) | 1996-08-14 |
ITMI920602A0 (it) | 1992-03-16 |
FI931108A0 (fi) | 1993-03-12 |
FI931108A (fi) | 1993-09-17 |
FI106196B (fi) | 2000-12-15 |
NO930900L (no) | 1993-09-17 |
NO179511B (no) | 1996-07-15 |
EP0561264A2 (en) | 1993-09-22 |
DE69303950T2 (de) | 1997-02-27 |
NO930900D0 (no) | 1993-03-11 |
EP0561264A3 (en) | 1993-10-20 |
ITMI920602A1 (it) | 1993-09-16 |
ES2093298T3 (es) | 1996-12-16 |
IT1257282B (it) | 1996-01-12 |
ATE141253T1 (de) | 1996-08-15 |
DE69303950D1 (de) | 1996-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR0214881A (pt) | Processo para a produção de ácido acrìlico | |
NO179511C (no) | Fremgangsmåte for rensing av urent metylmetakrylat dannet fra acetoncyanhydrin | |
ATE57177T1 (de) | Verfahren zur herstellung von (meth)akrylanhydrid. | |
ATE162173T1 (de) | Verfahren zur herstellung von methylmethacrylat ohne diacethyl | |
DE69704537D1 (de) | Verfahren zum Konzentrieren von Schwefelsäure | |
ATE14220T1 (de) | Verfahren zur herstellung einer peroxidverbindung. | |
TW228504B (en) | Regeneration of sulfuric acid from sulfate by-products of 2-hydroxy-4-(methylthio) butyric acid manufacture | |
BR7704358A (pt) | Processo para produzir acido sulfurico a partir de acido sulfurico residual que contem sulfato de ferro | |
ATE257145T1 (de) | Verfahren zur herstellung von isobornylmethacrylat | |
ES2013588T3 (es) | Purificacion de glioxilatos de alquilo. | |
DE69600144D1 (de) | Verfahren zur Reinigung und Krystallisierung von Iopamidol | |
ATE18753T1 (de) | Verfahren zur reinigung von schwefelsaeure als abfallprodukt bei der bortrifluorid-synthese. | |
ATE3529T1 (de) | Verfahren zur herstellung von calciumsulfathalbhydrat und nach diesem verfahren erhaltenes calciumsulfat-halbhydrat. | |
BR9005531A (pt) | Processo para producao de acrilato de atila | |
DE50002520D1 (de) | Verfahren zur Herstellung von (Meth)acrylsäureestern | |
BR8803496A (pt) | Processo para producao de acrilato de etila | |
ATE25242T1 (de) | Verfahren zum phlegmatisieren von wasserunloeslichen peroxycarbonsaeuren. | |
JPS5547224A (en) | Production of gypsum | |
CN116081646A (zh) | 一种多级氧化高效处理氨法脱硫母液的方法 | |
JPS57130964A (en) | Purification of acetone cyanohydrin | |
TH25348A (th) | กระบวนการสำหรับการเตรียมแอลคิลอิมิดาโซลิโดน (เมธ) อะคริเลต | |
JPS5488220A (en) | Preparation of aminonitrile | |
ES2022182B3 (es) | Procedimiento para la purificacion de tetraacetiletilenodiamina. | |
JPS5446198A (en) | Purification of sulfuric acid | |
JPS5939361B2 (ja) | 無水亜二チオン酸ナトリウムの製造法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK1K | Patent expired |