TWI535696B - 製備甲基丙烯酸及甲基丙烯酸酯的方法 - Google Patents
製備甲基丙烯酸及甲基丙烯酸酯的方法 Download PDFInfo
- Publication number
- TWI535696B TWI535696B TW101133298A TW101133298A TWI535696B TW I535696 B TWI535696 B TW I535696B TW 101133298 A TW101133298 A TW 101133298A TW 101133298 A TW101133298 A TW 101133298A TW I535696 B TWI535696 B TW I535696B
- Authority
- TW
- Taiwan
- Prior art keywords
- aqueous phase
- methacrylic acid
- phase
- unit
- mother liquor
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
- B01D9/0045—Washing of crystals, e.g. in wash columns
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/23—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of oxygen-containing groups to carboxyl groups
- C07C51/235—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of oxygen-containing groups to carboxyl groups of —CHO groups or primary alcohol groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
- C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
-
- 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
-
- 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
- C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
-
- 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)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2011/079764 WO2013037131A1 (en) | 2011-09-16 | 2011-09-16 | Process for preparation of methacrylic acid and methacrylic acid ester |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201326115A TW201326115A (zh) | 2013-07-01 |
TWI535696B true TWI535696B (zh) | 2016-06-01 |
Family
ID=47882550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW101133298A TWI535696B (zh) | 2011-09-16 | 2012-09-12 | 製備甲基丙烯酸及甲基丙烯酸酯的方法 |
Country Status (8)
Country | Link |
---|---|
JP (1) | JP6092221B2 (ja) |
KR (1) | KR20140060529A (ja) |
CN (1) | CN103796982B (ja) |
MY (1) | MY165642A (ja) |
SA (1) | SA112330847B1 (ja) |
SG (1) | SG2014012637A (ja) |
TW (1) | TWI535696B (ja) |
WO (1) | WO2013037131A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY161504A (en) * | 2011-09-16 | 2017-04-14 | Evonik Roehm Gmbh | Process for preparation of methacrylic acid and methacrylic acid esters |
SG11201601069PA (en) * | 2013-09-26 | 2016-03-30 | Evonik Roehm Gmbh | Method for producing methacrolein and the conditioning/draining thereof for direct oxidative esterification |
WO2021172458A1 (ja) * | 2020-02-26 | 2021-09-02 | 三菱ケミカル株式会社 | 水を含む結晶の分離方法、メタクリル酸の製造方法、及びメタクリル酸エステルの製造方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54115318A (en) * | 1978-02-28 | 1979-09-07 | Sumitomo Chem Co Ltd | Recovery of methacrylic acid |
JPS5692831A (en) * | 1979-12-27 | 1981-07-27 | Sumitomo Chem Co Ltd | Recovering method of by-product acetic acid in preparation of methacrylic acid |
JPS57144237A (en) * | 1981-03-04 | 1982-09-06 | Japan Synthetic Rubber Co Ltd | Preparation of methacrylic acid |
JPH03279344A (ja) * | 1990-03-27 | 1991-12-10 | Tosoh Corp | 酢酸廃水中の酢酸濃度低減方法 |
DE19709392A1 (de) * | 1997-03-07 | 1998-09-10 | Basf Ag | Verfahren zur Extraktion von (Meth)acrylsäure |
JP2003503187A (ja) * | 1999-06-29 | 2003-01-28 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | 廃水の処理方法 |
JP2002128728A (ja) * | 2000-10-19 | 2002-05-09 | Mitsubishi Rayon Co Ltd | メタクリル酸の精製方法 |
DE10242746B4 (de) * | 2002-09-13 | 2010-07-01 | Evonik Degussa Gmbh | Waschvorrichtung, ein Verfahren zur Aufreinigung eines Waschguts sowie die Verwendung der Waschvorrichtung |
ES2446522T3 (es) * | 2007-05-25 | 2014-03-10 | Evonik Röhm Gmbh | Procedimiento para la preparación de metacrilato de metilo usando metanol reciclado |
EP2085376B1 (en) * | 2008-01-30 | 2012-09-05 | Evonik Röhm GmbH | Process for preparation of high purity methacrylic acid |
MY161504A (en) * | 2011-09-16 | 2017-04-14 | Evonik Roehm Gmbh | Process for preparation of methacrylic acid and methacrylic acid esters |
-
2011
- 2011-09-16 CN CN201180073458.4A patent/CN103796982B/zh not_active Expired - Fee Related
- 2011-09-16 SG SG2014012637A patent/SG2014012637A/en unknown
- 2011-09-16 JP JP2014530066A patent/JP6092221B2/ja not_active Expired - Fee Related
- 2011-09-16 WO PCT/CN2011/079764 patent/WO2013037131A1/en active Application Filing
- 2011-09-16 MY MYPI2014000730A patent/MY165642A/en unknown
- 2011-09-16 KR KR1020147006627A patent/KR20140060529A/ko not_active Application Discontinuation
-
2012
- 2012-09-12 TW TW101133298A patent/TWI535696B/zh not_active IP Right Cessation
- 2012-09-15 SA SA112330847A patent/SA112330847B1/ar unknown
Also Published As
Publication number | Publication date |
---|---|
MY165642A (en) | 2018-04-18 |
SA112330847B1 (ar) | 2015-08-16 |
JP6092221B2 (ja) | 2017-03-08 |
KR20140060529A (ko) | 2014-05-20 |
CN103796982A (zh) | 2014-05-14 |
TW201326115A (zh) | 2013-07-01 |
WO2013037131A1 (en) | 2013-03-21 |
CN103796982B (zh) | 2015-10-14 |
SG2014012637A (en) | 2014-06-27 |
JP2014528934A (ja) | 2014-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |