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Priority claimed from FR9608590Aexternal-prioritypatent/FR2746795B1/en
Application filed by Acetex ChimiefiledCriticalAcetex Chimie
Publication of MY117940ApublicationCriticalpatent/MY117940A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
AN OBJECT OF THE PRESENT INVENTION IS THE PREPARATION OF ACETIC ACID AND/OR METHYL ACETATE BY CARRYING OUT AN ISOMERISATION REACTION AND A CARBONYLATION REACTION.THE INVENTION RELATES MORE PARTICULARLY TO A METHOD OF PREPARING ACETIC ACID AND/OR METHYL ACETATE BY REACTION OF REAGENTS WHICH PROVIDE FORMYL RADICALS AND REAGENTS WHICH PROVIDE METHYL RADICALS, IN THE PRESENCE OF CARBON MONOXIDE, WATER, A SOLVENT AND A CATALYTIC SYSTEM COMPRISING AT LEAST ONE HALOGENATED PROMOTER AND AT LEAST ONE IRIDIUM-BASED COMPOUND, ACCORDING TO WHICH A PARTIAL CARBON MONOXIDE PRESSURE IS KEPT BETWEEN 0.1 105 PA AND 25. 105 PA, AND AN AMOUNT OF REAGENT WHICH PROVIDES THE FORMYL RADICALS IS KEPT BELOW OR EQUAL TO 20BY WEIGHT OF THE REACTION MEDIUM, AND THE REAGENTS WHICH PROVIDE THE METHYL RADICALS AND FORMYL RADICALS ARE FED IN IN A MOLAR RATIO OF THE METHYL RADICALS AND THE FORMYL RADICALS OF GREATER THAN 1.THE INVENTION APPLIES MOST PARTICULARLY TO THE PREPARATION OF ACETIC ACID AND/OR METHYL ACETATE FROM MIXTURES OF METHANOL AND METHYL FORMATE.
MYPI97019151996-07-101997-05-02Method for preparing acetic acid and/or methyl acetate by isomerisation and carbonylation
MY117940A
(en)
Process for the separation of iodine and its compounds from carbonylation products obtained by the carbonylation of dimethyl ether, methyl acetate or methanol