MY152166A - Process for preparing alpha-hydroxycarboxylic esters - Google Patents

Process for preparing alpha-hydroxycarboxylic esters

Info

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
Application number
Inventor
May Alexander
Vogel Bernd
Siegert Hermann
Ackermann Jochen
Bröcker Sönke
Original Assignee
Evonik Roehm Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE200610022896 external-priority patent/DE102006022896A1/en
Priority claimed from DE102007011706A external-priority patent/DE102007011706A1/en
Application filed by Evonik Roehm Gmbh filed Critical Evonik Roehm Gmbh
Publication of MY152166A publication Critical patent/MY152166A/en

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  • 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.
MYPI20083792 2006-05-15 2007-03-28 Process for preparing alpha-hydroxycarboxylic esters MY152166A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200610022896 DE102006022896A1 (en) 2006-05-15 2006-05-15 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
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1377277A1 (en) * 1985-12-23 1988-02-28 Кировский Политехнический Институт Method of producing carboxylates
DE69908230T2 (en) * 1998-03-25 2004-04-08 Mitsubishi Gas Chemical Co., Inc. Process for the preparation of alpha-hydroxycarboxylates

Also Published As

Publication number Publication date
RU2008149043A (en) 2010-06-20
RU2454399C2 (en) 2012-06-27
BRPI0711627A2 (en) 2011-12-06

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