C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
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
Method of hemihydrogenation of corresponding dinitriles in corresponding aminonitrile, that is, preferential hydrogenation of a single nitrile function of a dinitrile with the help of hydrogen and in the presence of a catalyst
Procedure for obtaining separate streams of methanol and ethanol n-propanol isobutanol which can be used in the synthesis of products with a high number of octanes from mixtures containing these alcohols with water and other compounds with a low boiling point and a high point of boiling. boiling
Procedure to prepare carboxylic acid by means of the oxidation of a hydrocarbon, an alcohol or a ketone, in liquid phase, by means of molecular oxygen and in the presence of a heterogeneous catalyst.
PROCEDURE FOR THE SYNTHESIS OF UREA COMPRISING TWO SEPARATE ZONES OF REACTION AND METHOD TO INCREASE THE CONVERSION OF AMMONIA AND CARBON DIOXIDE IN PRE-EXISTING PROCESSES FOR THE PRODUCTION OF UREA.
Procedure for the separation of paraxylene from an aromatic filler containing xylene isomers by means of adsorption, crystallization and isomerization steps and comprising a step of treatment with aluminosilicates