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1. WO2002022548 - PROCESS FOR PRODUCING ESTER

Publication Number WO/2002/022548
Publication Date 21.03.2002
International Application No. PCT/JP2001/007861
International Filing Date 10.09.2001
Chapter 2 Demand Filed 31.01.2002
IPC
C07C 67/58 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
48Separation; Purification; Stabilisation; Use of additives
58by liquid-liquid treatment
C10M 105/32 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
105Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
08containing oxygen
32Esters
CPC
C07C 67/58
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
48Separation; Purification; Stabilisation; Use of additives
58by liquid-liquid treatment
C10M 105/32
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS
105Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
08containing oxygen
32Esters
Applicants
  • NOF CORPORATION [JP]/[JP] (AllExceptUS)
  • MEMITA, Michimasa [JP]/[JP] (UsOnly)
  • HIRAO, Keiji [JP]/[JP] (UsOnly)
Inventors
  • MEMITA, Michimasa
  • HIRAO, Keiji
Agents
  • NANJO, Hiromichi
Priority Data
2000-27562311.09.2000JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PROCESS FOR PRODUCING ESTER
(FR) PROCEDE DE PREPARATION D'ESTER
Abstract
(EN)
A process for producing an ester which comprises: a step in which an alcohol is reacted with a carboxylic acid to obtain a crude esterification product; and a step in which 5 to 100 parts by weight of a hydrocarbon solvent is added to 100 parts by weight of the crude esterification product and the resultant mixture is deacidified with an aqueous alkali solution. An alcohol solvent can be further added according to need. The process enables a high-quality ester to be obtained in high yield.
(FR)
L'invention concerne un procédé de préparation d'un ester, consistant d'abord à faire réagir un alcool avec un acide carboxylique pour obtenir un produit d'estérification brut; à ajouter ensuite 5 à 10 parties en poids de solvant à base d'hydrocarbures à 100 parties en poids du produit d'estérification brut; et enfin, à désacidifier le mélange obtenu à l'aide d'une solution alcaline aqueuse. On peut également ajouter un solvant à base d'alcool selon les besoins. Ce procédé permet d'obtenir un rendement élevé d'ester de haute qualité.
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