SA112330847B1 - عملية لتحضير حمض ميثاكريليك وإسترات حمض ميثاكريليك - Google Patents
عملية لتحضير حمض ميثاكريليك وإسترات حمض ميثاكريليكInfo
- Publication number
- SA112330847B1 SA112330847B1 SA112330847A SA112330847A SA112330847B1 SA 112330847 B1 SA112330847 B1 SA 112330847B1 SA 112330847 A SA112330847 A SA 112330847A SA 112330847 A SA112330847 A SA 112330847A SA 112330847 B1 SA112330847 B1 SA 112330847B1
- Authority
- SA
- Saudi Arabia
- Prior art keywords
- methacrylic acid
- aqueous phase
- phase
- preparation
- acid ester
- 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
-
- 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
-
- 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
- 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)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (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 (1)
| Publication Number | Publication Date |
|---|---|
| SA112330847B1 true SA112330847B1 (ar) | 2015-08-16 |
Family
ID=47882550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SA112330847A SA112330847B1 (ar) | 2011-09-16 | 2012-09-15 | عملية لتحضير حمض ميثاكريليك وإسترات حمض ميثاكريليك |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP6092221B2 (zh) |
| KR (1) | KR20140060529A (zh) |
| CN (1) | CN103796982B (zh) |
| MY (1) | MY165642A (zh) |
| SA (1) | SA112330847B1 (zh) |
| SG (1) | SG2014012637A (zh) |
| TW (1) | TWI535696B (zh) |
| WO (1) | WO2013037131A1 (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG2014012587A (en) * | 2011-09-16 | 2014-06-27 | Evonik Roehm Gmbh | Process for preparation of methacrylic acid and methacrylic acid esters |
| JP6355723B2 (ja) * | 2013-09-26 | 2018-07-11 | エボニック レーム ゲゼルシャフト ミット ベシュレンクテル ハフツングＥｖｏｎｉｋ Ｒｏｅｈｍ ＧｍｂＨ | メタクロレインの製造および直接酸化エステル化のためのそのコンディショニング／脱水のための方法 |
| JP7396455B2 (ja) * | 2020-02-26 | 2023-12-12 | 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 |
| WO2001000534A1 (en) * | 1999-06-29 | 2001-01-04 | Shell Internationale Research Maatschappij B.V. | Process for the treatment of a waste water |
| 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 |
| SG2014012587A (en) * | 2011-09-16 | 2014-06-27 | Evonik Roehm Gmbh | Process for preparation of methacrylic acid and methacrylic acid esters |
-
2011
- 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 KR KR1020147006627A patent/KR20140060529A/ko not_active Application Discontinuation
- 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 MY MYPI2014000730A patent/MY165642A/en unknown
-
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 |
|---|---|
| JP6092221B2 (ja) | 2017-03-08 |
| MY165642A (en) | 2018-04-18 |
| TW201326115A (zh) | 2013-07-01 |
| JP2014528934A (ja) | 2014-10-30 |
| SG2014012637A (en) | 2014-06-27 |
| TWI535696B (zh) | 2016-06-01 |
| KR20140060529A (ko) | 2014-05-20 |
| CN103796982A (zh) | 2014-05-14 |
| CN103796982B (zh) | 2015-10-14 |
| WO2013037131A1 (en) | 2013-03-21 |
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