Method for preventing, removing or reducing deposits in...

Details Method for preventing, removing or reducing deposits in... Method for preventing, removing or reducing deposits in...

C - Chemistry, Metallurgy

07

C

C07C 67/08 (2006.01) C07C 69/54 (2006.01)

Patent

CA 2265552

When producing esters of acrylic or methacrylic acid by esterification with alcohols troublesome deposits of high molecular byproducts build up in parts of the apparatus. Said deposits can be prevented, removed or reduced by applying a liquid in the parts of the apparatus contaminated with deposits or on those surfaces where deposits easily build up. Said liquid is partially or totally made out of the alcohol used for esterification. The moistening is performed preferably by means of appropriate nozzles or cleansing jets.

Lors de la production d'esters de l'acide acrylique ou méthacrylique par estérification avec des alcools, on peut empêcher, éliminer ou réduire les dépôts gênants apparaissant sur les parties d'appareils et provoqués par des sous-produits de poids moléculaire élevé, en faisant agir sur les dépôts, les parties d'appareils encrassés ou sur les surfaces des parties d'appareils où apparaissent facilement ces dépôts, un liquide constitué totalement ou en partie par l'alcool utilisé pour l'estérification, l'imprégnation étant réalisée de préférence au moyen de buses ou de systèmes de nettoyage appropriés pour projeter ce liquide.

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