JP2001504507A - (メタ)アクリル酸エステルの製法 - Google Patents
(メタ)アクリル酸エステルの製法Info
- Publication number
- JP2001504507A JP2001504507A JP52425598A JP52425598A JP2001504507A JP 2001504507 A JP2001504507 A JP 2001504507A JP 52425598 A JP52425598 A JP 52425598A JP 52425598 A JP52425598 A JP 52425598A JP 2001504507 A JP2001504507 A JP 2001504507A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- extraction
- weight
- reaction mixture
- esterification
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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
Description
Claims (1)
- 【特許請求の範囲】 1.触媒としての硫酸又は硫酸モノ−C4〜C12−アルキルエステルの存在下に おける(メタ)アクリル酸とC4〜C12−アルカノールとの反応により(メタ) アクリル酸エステルを製造する場合に、触媒を水での抽出により反応混合物から 再生させ、この際、抽出すべき反応混合物中の未反応アルカノールの濃度は、抽 出すべき反応混合物に対して最大5重量%であることを特徴とする、(メタ)ア クリル酸エステルの製法。 2.アルカノール濃度は0.1〜3重量%である、請求項1に記載の方法。 3.水を用いる抽出により反応混合物から再生された触媒の水溶液を再びエステ ル化に戻す、請求項1又は2に記載の方法。 4.抽出度が反応混合物中の触媒量に対して少なくとも70重量%、殊に少なく とも80重量%になるように触媒の抽出を実施する、請求項1から3のいずれか 1項に記載の方法。 5.水相中の触媒濃度が、水性抽出物に対して少なくとも20重量%、殊に少な くとも25重量%になるように触媒の抽出を実施する、請求項1から4のいずれ か1項に記載の方法。 6.抽出を15〜40℃で実施する、請求項1から5 のいずれか1項に記載の方法。 7.抽出を向流で又はスタテイックミキサー中で実施する、請求項1から6のい ずれか1項に記載の方法。 8.アルカノールとしてn−ブタノール又はイソブタノールを使用する、請求項 1から7のいずれか1項に記載の方法。 9.反応温度は70〜160℃、殊に90〜130℃である、請求項1から8の いずれか1項に記載の方法。 10.反応時間は1〜10、殊に1〜6時間である、請求項1から9のいずれか 1項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19648745.5 | 1996-11-25 | ||
DE19648745A DE19648745A1 (de) | 1996-11-25 | 1996-11-25 | Verfahren zur Herstellung von (Meth)acrylsäureestern |
PCT/EP1997/006514 WO1998023577A1 (de) | 1996-11-25 | 1997-11-21 | Verfahren zur herstellung von (meth)acrylsäureestern |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001504507A true JP2001504507A (ja) | 2001-04-03 |
Family
ID=7812689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52425598A Pending JP2001504507A (ja) | 1996-11-25 | 1997-11-21 | (メタ)アクリル酸エステルの製法 |
Country Status (13)
Country | Link |
---|---|
US (1) | US6177590B1 (ja) |
EP (1) | EP0944573B1 (ja) |
JP (1) | JP2001504507A (ja) |
KR (1) | KR20000057212A (ja) |
CN (1) | CN1238757A (ja) |
AU (1) | AU5485298A (ja) |
BR (1) | BR9713288A (ja) |
CA (1) | CA2272868A1 (ja) |
CZ (1) | CZ173299A3 (ja) |
DE (2) | DE19648745A1 (ja) |
ID (1) | ID22427A (ja) |
TW (1) | TW402590B (ja) |
WO (1) | WO1998023577A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1028936B1 (en) * | 1997-10-31 | 2003-03-26 | Celanese International Corporation | Sulfur removal process from an acrylate stream |
DE10007213A1 (de) * | 2000-02-17 | 2001-08-23 | Basf Ag | Verfahren zur Herstellung von Estern alpha,beta-ungesättigter Carbonsäuren |
WO2004043945A1 (en) * | 2002-11-12 | 2004-05-27 | Wiley Organics, Inc. | Method for purifying and separating soy isoflavones |
JP2005336142A (ja) * | 2004-05-31 | 2005-12-08 | Mitsubishi Chemicals Corp | (メタ)アクリル酸の製造装置及び(メタ)アクリル酸の製造方法 |
DE102005043719A1 (de) * | 2005-09-13 | 2007-03-15 | Röhm Gmbh | Vorrichtung und Verfahren für kontinuierlich durchgeführte Gleichgewichtsreaktionen |
CN102344366A (zh) * | 2011-08-08 | 2012-02-08 | 江苏沿江化工资源开发研究院有限公司 | 两股溶剂侧线进料液液萃取提取丙烯酸丁酯的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2552987C2 (de) * | 1975-11-26 | 1983-09-29 | Hoechst Ag, 6230 Frankfurt | Verfahren zur kontinuierlichen Herstellung ätherfreier Acrylsäurealkylester |
DE4019781A1 (de) * | 1990-06-21 | 1992-01-02 | Basf Ag | Verfahren zur herstellung von monoethylenisch ungesaettigten carbonsaeureestern |
US5364754A (en) | 1992-04-16 | 1994-11-15 | Eastman Kodak Company | Silver halide photographic emulsions precipitated in the presence of organic dichalcogenides |
FR2700767B1 (fr) | 1993-01-27 | 1995-04-07 | Atochem Elf Sa | Procédé perfectionné de fabrication de (méthacrylates d'alkyle par estérification directe. |
JP3346822B2 (ja) | 1993-03-31 | 2002-11-18 | 三菱化学株式会社 | アクリル酸エステル又はメタクリル酸エステルの製造法 |
-
1996
- 1996-11-25 DE DE19648745A patent/DE19648745A1/de not_active Withdrawn
-
1997
- 1997-11-21 CZ CZ991732A patent/CZ173299A3/cs unknown
- 1997-11-21 JP JP52425598A patent/JP2001504507A/ja active Pending
- 1997-11-21 KR KR1019990704549A patent/KR20000057212A/ko not_active Application Discontinuation
- 1997-11-21 CN CN97180046A patent/CN1238757A/zh active Pending
- 1997-11-21 AU AU54852/98A patent/AU5485298A/en not_active Abandoned
- 1997-11-21 DE DE59704617T patent/DE59704617D1/de not_active Expired - Lifetime
- 1997-11-21 ID IDW990386A patent/ID22427A/id unknown
- 1997-11-21 WO PCT/EP1997/006514 patent/WO1998023577A1/de not_active Application Discontinuation
- 1997-11-21 US US09/308,253 patent/US6177590B1/en not_active Expired - Lifetime
- 1997-11-21 EP EP97951259A patent/EP0944573B1/de not_active Expired - Lifetime
- 1997-11-21 CA CA002272868A patent/CA2272868A1/en not_active Abandoned
- 1997-11-21 BR BR9713288-8A patent/BR9713288A/pt unknown
- 1997-11-24 TW TW086117558A patent/TW402590B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US6177590B1 (en) | 2001-01-23 |
EP0944573A1 (de) | 1999-09-29 |
BR9713288A (pt) | 1999-10-26 |
CN1238757A (zh) | 1999-12-15 |
DE19648745A1 (de) | 1998-05-28 |
TW402590B (en) | 2000-08-21 |
DE59704617D1 (de) | 2001-10-18 |
CA2272868A1 (en) | 1998-06-04 |
KR20000057212A (ko) | 2000-09-15 |
EP0944573B1 (de) | 2001-09-12 |
WO1998023577A1 (de) | 1998-06-04 |
ID22427A (id) | 1999-10-14 |
AU5485298A (en) | 1998-06-22 |
CZ173299A3 (cs) | 1999-09-15 |
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