MY152166A - Process for preparing alpha-hydroxycarboxylic esters - Google Patents
Process for preparing alpha-hydroxycarboxylic estersInfo
- Publication number
- MY152166A MY152166A MYPI20083792A MY152166A MY 152166 A MY152166 A MY 152166A MY PI20083792 A MYPI20083792 A MY PI20083792A MY 152166 A MY152166 A MY 152166A
- Authority
- MY
- Malaysia
- Prior art keywords
- alpha
- alcohol
- hydroxycarboxamide
- ammonia
- catalyst
- Prior art date
Links
- 150000002148 esters Chemical class 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 4
- 239000000376 reactant Substances 0.000 abstract 4
- 229910021529 ammonia Inorganic materials 0.000 abstract 3
- 239000003054 catalyst Substances 0.000 abstract 3
- 238000010924 continuous production Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
CONTINUOUS PROCESS FOR PREPARING ALPHA-HYDROXYCARBOXYLIC ESTERS, IN WHICH THE REACTANTS REACTED ARE ALPHA-HYDROXYCARBOXAMIDE WITH AN ALCOHOL IN THE PRESENCE OF A CATALYST TO OBTAIN A PRODUCT MIXTURE WHICH COMPRISES ALPHA-HYDROXYCARBOXYLIC ESTER, AMMONIA, UNCONVERTED ALPHA-HYDROXYCARBOXAMIDE, AND ALCOHOL, AND CATALYST; WHEREIN REACTANT STREAMS COMPRISING, AS REACTANT, AN ALPHA-HYDROXYCARBOXAMIDE, AN ALCOHOL AND A CATALYST ARE FED INTO A PRESSURE REACTOR; THE REACTANT STREAMS ARE REACTED WITH ONE ANOTHER IN THE PRESSURE REACTOR AT A PRESSURE IN THE RANGE OF 1 BAR TO 100 BAR; AND THE PRODUCT MIXTURE IS DEPLETED IN ALCOHOL AND AMMONIA BY DISTILLING OFF AMMONIA AT A PRESSURE WHICH IS CONSTANTLY KEPT GREATER THAN 1 BAR WITHOUT THE AID OF ADDITIONAL STRIPPING MEDIA. THE CONTINUOUS PROCESS CAN BE IS PARTICULARLY ADVANTAGEOUSLY ON THE INDUSTRIAL SCALE.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610022896 DE102006022896A1 (en) | 2006-05-15 | 2006-05-15 | Process for the preparation of alpha-hydroxycarboxylic acids |
| US89378807P | 2007-03-08 | 2007-03-08 | |
| DE102007011706A DE102007011706A1 (en) | 2007-03-08 | 2007-03-08 | Continuous preparation of alpha-hydroxycarboxylic ester comprises reacting reactants of alpha-hydroxycarbamide with alcohol, feeding the reactant into a pressure reactor and depleting the product mixture in alcohol and ammonia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MY152166A true MY152166A (en) | 2014-08-15 |
Family
ID=42682340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MYPI20083792 MY152166A (en) | 2006-05-15 | 2007-03-28 | Process for preparing alpha-hydroxycarboxylic esters |
Country Status (3)
| Country | Link |
|---|---|
| BR (1) | BRPI0711627A2 (en) |
| MY (1) | MY152166A (en) |
| RU (1) | RU2454399C2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1377277A1 (en) * | 1985-12-23 | 1988-02-28 | Кировский Политехнический Институт | Method of producing carboxylates |
| ES2200429T3 (en) * | 1998-03-25 | 2004-03-01 | Mitsubishi Gas Chemical Company, Inc. | ALFA-HYDROXICARBOXYLATE PREPARATION PROCEDURE. |
-
2007
- 2007-03-28 MY MYPI20083792 patent/MY152166A/en unknown
- 2007-03-28 RU RU2008149043/04A patent/RU2454399C2/en not_active IP Right Cessation
- 2007-03-28 BR BRPI0711627-6A patent/BRPI0711627A2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0711627A2 (en) | 2011-12-06 |
| RU2008149043A (en) | 2010-06-20 |
| RU2454399C2 (en) | 2012-06-27 |
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