KR950017904A - 수율이 높은 메타크릴산 에스테르 제조방법 - Google Patents
수율이 높은 메타크릴산 에스테르 제조방법 Download PDFInfo
- Publication number
- KR950017904A KR950017904A KR1019940032179A KR19940032179A KR950017904A KR 950017904 A KR950017904 A KR 950017904A KR 1019940032179 A KR1019940032179 A KR 1019940032179A KR 19940032179 A KR19940032179 A KR 19940032179A KR 950017904 A KR950017904 A KR 950017904A
- Authority
- KR
- South Korea
- Prior art keywords
- alkyl
- mixture
- esterification
- methacrylic acid
- isobutyrate
- 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
- C07C67/20—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
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/317—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
- C07C67/327—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups by elimination of functional groups containing oxygen only in singly bound form
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
본 발명은 반응부산물을 감소시키고 중간물질을 공정에 재순환시킴으로써, 아세톤시안히드린과 황산으로 부터 높은 수율로 α, β-불포화 카르복시산에스테르를 제조하는 방법을 제공한다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (9)
- a. ACH로 부터 유도된 2-메타크릴아미드(MAM), α-술페이토이소부티르아미드(SIBAM), α-히드록시이소브티르아미드(HIBAM) 및 메타크릴산(MAA)의 전체 몰수의 합이 최대가 되도록 아세톤 시안히드린을 가수분해하여 2-메타크릴아미드, α-술페이토이소부티르아미드, α-히도록시이소부티르아미드 및 메타크릴산을 포함하는 가수분해 혼합물을 제조하는 단계. b. 상기 가수분해 흔합물을 C1-C12 알킬알코올로 에스테르화하여 C1-Cl2알킬 메타 크릴레이트, C1-C2 알킬 α-히드록시이소부티르레이트, C1-Cl2 알킬-C1-Cl2알콕시 이소부티르레이트 및 C1-Cl2알킬 α-C1-Cl2알콕시이소부티르레이트를 포함하는 에스테르화 혼합물을 제조하는 단계:c. 상기 에스테르화 혼합물을 수성 부분,C1-Cl2 메타크릴레이트를 포함하는 제1유기부분 C1-Cl2알킬 α-히드록시이소부티르레이트, C1-C12 알킬-C1-Cl2 알록시 이소부티르레이트 및 C1-Cl2알킬 β-C1-Cl2알콕시 이소부티르레이트를 포함하는 제2유기부분으로 분리하는 단계:d. 상기 제2유기 부분의 이소부티르레이트-함유 성분을 탈수하여 C1-Cl2알킬 메타 크릴레이트, 메타크릴산, C1-Cl2 알킬 알코올 및 물을 포함하는 재순환 혼합물을 제조하는 단계;e. 상기 재순환 혼합물을 상기 가수분해 흔합물 또는 상기 에스테르화 혼합물과 결합하는 단계;를 포함하는 메닥크릴산 에스테르 제조방법.
- 1항에 있어서, 에스테르화 단계 직전의 공전 스트림내의 α-히드록시이소부티르아미드의 농도는 상기 아세톤 시안히드린 출발물질을 기준으로 약 2-20몰%임을 특징으로 하는 방법.
- 1항에 있어서, 에스테르화 단계 직전의 공정 스트림내의 α-히드록시이소부티르아미드의 농도는 상기 아세톤 시안히드린 출발물질을 기준으로 약 5-15몰%임을 특징으로 하는 방법.
- 1항에 있어서, 에스테르화 단계 직전의 공정 스트림내의 α-술페이토이소부티르아미드의 농도는 상기 아세톤 시안히드린 출발물질을 기준으로 약 1-20몰%임을 특징으로 하는 방법.
- 1항에 있어서, 상기 C1-Cl2알킬알코올은 메탄올, 에탄올, n-프로판올, 이소프로판올, n-부탄올 및 이소프로판올로 구성되는 그룹으로 부터 선택됨을 특징으로 하는 방법.
- 1항에 있어서, 상기 C1-Cl2알킬 알코올은 메탄올임을 특징으로 하는 방법,
- 1항에 있어서, 상기 분리단계는 에스테르화 혼할물의 분별증류를 포함함을 특징으로 하는 방법.
- 1항에 있어서, 상기 탈수단계는 결정성 알루미노 실리케이트의 존재하에서 기상(vapor phase)에서 행하여짐을 특징으로 하는 방법.
- 8항에 있어서, 상기 결정성 알루미노실리케이트는 알칼리 금속 및 배금족 원소로 변형됨을 특징으로 하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/160697 | 1993-12-02 | ||
US08/160,697 US5393918A (en) | 1993-12-02 | 1993-12-02 | High yield process for the production of methacrylic acid esters |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950017904A true KR950017904A (ko) | 1995-07-20 |
KR100411499B1 KR100411499B1 (ko) | 2004-03-20 |
Family
ID=22578043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940032179A KR100411499B1 (ko) | 1993-12-02 | 1994-11-30 | 수율이높은메타크릴산에스테르제조방법 |
Country Status (13)
Country | Link |
---|---|
US (1) | US5393918A (ko) |
EP (1) | EP0656343B1 (ko) |
JP (1) | JP3860234B2 (ko) |
KR (1) | KR100411499B1 (ko) |
CN (1) | CN1041410C (ko) |
BR (1) | BR9404473A (ko) |
CA (1) | CA2135438A1 (ko) |
CZ (1) | CZ303494A3 (ko) |
DE (1) | DE69403883T2 (ko) |
ES (1) | ES2104288T3 (ko) |
RU (1) | RU2131867C1 (ko) |
SG (1) | SG81884A1 (ko) |
TW (1) | TW319774B (ko) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9802662D0 (en) * | 1998-02-10 | 1998-04-01 | Ici Plc | Unsaturated compounds |
EP0999200B1 (en) | 1998-11-04 | 2002-07-17 | Rohm And Haas Company | Process for the high yield production of methyl methacrylate or methacrylic acid |
EP1186592A1 (en) * | 2000-09-11 | 2002-03-13 | Mitsubishi Gas Chemical Company, Ltd. | Production of methacrylates |
TWI254648B (en) * | 2002-05-01 | 2006-05-11 | Rohm & Haas | Process for manufacturing high purity methacrylic acid |
ZA200303241B (en) * | 2002-05-01 | 2003-11-04 | Rohm & Haas | Improved process for methacrylic acid and methcrylic acid ester production. |
CN100584822C (zh) * | 2004-04-02 | 2010-01-27 | 西巴特殊化学水处理有限公司 | 由α或β-羟基羧酸制备丙烯酸衍生物 |
DE102006058251A1 (de) * | 2006-12-08 | 2008-06-12 | Evonik Röhm Gmbh | Verfahren und Vorrichtung zur Herstellung von Methacrylsäurealkylestern |
DE102006060161A1 (de) * | 2006-12-18 | 2008-06-26 | Evonik Röhm Gmbh | Verfahren zur adsorptiven Aufreinigung von Methacrylsäurealkylestern |
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 |
WO2012047883A1 (en) | 2010-10-07 | 2012-04-12 | Rohm And Haas Company | Process for production of methacrylic acid ester |
DE102011076642A1 (de) * | 2011-05-27 | 2012-11-29 | Evonik Röhm Gmbh | Verfahren zur Herstellung von Methacrylsäure |
US9815097B2 (en) | 2011-09-27 | 2017-11-14 | Rohm And Haas Company | Method for cleaning a (meth)acrylate ester process tank |
US9199910B2 (en) | 2012-06-04 | 2015-12-01 | Rohm And Haas Company | Process for production of methacrylic acid esters |
US9260368B2 (en) * | 2012-09-28 | 2016-02-16 | Rohm And Haas Company | Process for producing MMA and/or MAA from acetone cyanohydrin and sulfuric acid |
CN103130671B (zh) * | 2013-03-28 | 2015-06-17 | 重庆紫光化工股份有限公司 | 一种清洁的甲基丙烯酰胺的制备和提纯方法 |
US20160102043A1 (en) * | 2013-06-26 | 2016-04-14 | Rohm And Haas Company | Process for production of methacrylic acid esters |
AU2015332509B2 (en) | 2014-10-14 | 2020-05-21 | Gevo, Inc. | Methods for conversion of ethanol to functionalized lower hydrocarbons and downstream hydrocarbons |
EP3735401B1 (en) | 2018-01-04 | 2023-04-26 | GEVO, Inc. | Upgrading fusel oil mixtures over heterogeneous catalysts to higher value renewable chemicals |
JP2023547392A (ja) | 2020-10-23 | 2023-11-10 | レーム・ゲーエムベーハー | 不要な副産物の低減によるメタクリル酸(mas)および/またはアルキルメタクリレートの最適化された製造方法 |
US20230399286A1 (en) | 2020-10-23 | 2023-12-14 | Röhm Gmbh | Improved process for preparing methyl methacrylate and/or methacrylic acid by reduced back mixing during conversion |
EP4045479B1 (de) | 2020-10-23 | 2022-10-26 | Röhm GmbH | Optimiertes verfahren zur herstellung von alkylmethacrylat durch reduzierung störender nebenprodukte |
WO2023117754A1 (de) | 2021-12-23 | 2023-06-29 | Röhm Gmbh | Verfahren zur herstellung von alkylmethacrylaten mit verbesserter ausbeute und verminderten emissionen flüchtiger organischer verbindungen |
WO2023169810A1 (de) | 2022-03-11 | 2023-09-14 | Röhm Gmbh | Verfahren zur herstellung von alpha-hydroxyisobuttersäuremethylester und dessen anwendung in der elektronik-industrie |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2416756A (en) * | 1941-10-23 | 1947-03-04 | Du Pont | Continuous production of esters of methacrylic acid |
US2786739A (en) * | 1954-05-10 | 1957-03-26 | Allied Chem & Dye Corp | Continuous process for the production of methacrylic acid esters and ammonium sulphate |
US3027328A (en) * | 1958-12-09 | 1962-03-27 | Degussa | Process for the preparation of acetonecyanohydrin/sulfuric acid mixtures |
JPS5767534A (en) * | 1980-10-16 | 1982-04-24 | Mitsui Toatsu Chem Inc | Preparation of alpha,beta-unsaturated carboxylic ester and alpha,beta-unsaturated carboxylic acid |
US4529816A (en) * | 1984-02-13 | 1985-07-16 | E. I. Du Pont De Nemours And Company | Process for producing alkyl methacrylates |
ES2012539A6 (es) * | 1987-08-20 | 1990-04-01 | Du Pont | Procedimiento para la produccion de acido metacrilico y sus esteres dealquilo. |
JP2727618B2 (ja) * | 1989-01-26 | 1998-03-11 | 三菱瓦斯化学株式会社 | 不飽和カルボン酸エステルの製造方法 |
JP2778131B2 (ja) * | 1989-07-14 | 1998-07-23 | 三菱瓦斯化学株式会社 | メタクリル酸メチルの製造方法 |
JP2884638B2 (ja) * | 1989-11-28 | 1999-04-19 | 三菱瓦斯化学株式会社 | 不飽和カルボン酸エステルの製造法 |
JP2884639B2 (ja) * | 1989-11-28 | 1999-04-19 | 三菱瓦斯化学株式会社 | 不飽和カルボン酸エステルの製造法 |
JPH03264551A (ja) * | 1990-03-15 | 1991-11-25 | Kuraray Co Ltd | メタクリル酸メチルの回収方法 |
-
1993
- 1993-12-02 US US08/160,697 patent/US5393918A/en not_active Expired - Lifetime
-
1994
- 1994-11-09 CA CA002135438A patent/CA2135438A1/en not_active Abandoned
- 1994-11-11 SG SG9605540A patent/SG81884A1/en unknown
- 1994-11-11 DE DE69403883T patent/DE69403883T2/de not_active Expired - Fee Related
- 1994-11-11 EP EP94308342A patent/EP0656343B1/en not_active Expired - Lifetime
- 1994-11-11 ES ES94308342T patent/ES2104288T3/es not_active Expired - Lifetime
- 1994-11-16 BR BR9404473A patent/BR9404473A/pt not_active IP Right Cessation
- 1994-11-22 TW TW083110831A patent/TW319774B/zh active
- 1994-11-28 JP JP31600494A patent/JP3860234B2/ja not_active Expired - Fee Related
- 1994-11-30 KR KR1019940032179A patent/KR100411499B1/ko not_active IP Right Cessation
- 1994-11-30 RU RU94042228A patent/RU2131867C1/ru active
- 1994-12-01 CN CN94112755A patent/CN1041410C/zh not_active Expired - Fee Related
- 1994-12-02 CZ CZ943034A patent/CZ303494A3/cs unknown
Also Published As
Publication number | Publication date |
---|---|
CN1109865A (zh) | 1995-10-11 |
RU94042228A (ru) | 1996-10-10 |
EP0656343B1 (en) | 1997-06-18 |
SG81884A1 (en) | 2001-07-24 |
TW319774B (ko) | 1997-11-11 |
CN1041410C (zh) | 1998-12-30 |
KR100411499B1 (ko) | 2004-03-20 |
BR9404473A (pt) | 1995-07-25 |
EP0656343A1 (en) | 1995-06-07 |
JPH07196576A (ja) | 1995-08-01 |
RU2131867C1 (ru) | 1999-06-20 |
DE69403883T2 (de) | 1998-02-12 |
ES2104288T3 (es) | 1997-10-01 |
CA2135438A1 (en) | 1995-06-03 |
JP3860234B2 (ja) | 2006-12-20 |
CZ303494A3 (en) | 1995-11-15 |
US5393918A (en) | 1995-02-28 |
DE69403883D1 (de) | 1997-07-24 |
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