Overview
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Vance BERGERON: DoctorÉcole normale supérieure de Lyon
INTRODUCTION
Foams are omnipresent in industry: sometimes sought-after, sometimes fought. There's no shortage of examples of foam "hunting": in the chemical industry, of course, in its liquid/liquid extraction, emulsion polymerization and fermentation processes. Every time a solution containing an impurity or, a fortiori, a surfactant, is stirred or transported, foaming occurs immediately and automatically.
The formation of foams can endanger operating conditions or degrade the performance of manufactured products. This booklet provides a theoretical overview of the conditions under which foams form, as well as the main ways of destabilizing them.
In the second part , we'll look at the most common industrial defoaming and antifoaming practices.
This study on defoamers and defoaming agents is divided into two parts:
— J 2 205 - Defoamers and defoaming agents. Mechanisms of action ;
— - Defoamers and defoaming agents. Industrial application; to which is attached a documentation booklet ( - Defoamers and defoaming agents. For further information).
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Defoamers and defoaming agents