Rhodia Polyamide Intermediates

Thierry Nuris

Jean-François Thierry

This invention relates to a coil comprising a first helical tube segment () and a second helical tube segment () extending, parallel to the first helical segment (), between a distributor () and a manifold (), said first and second helical segments () being centred on a common geometrical axis (X), with substantially the same bending radius (R) and nested, such that they form together a globally cylindrical bundle (). The method comprises a step which consists in interleaving the helical tube segments (-) so as to form a globally cylindrical bundle. The invention also concerns a reactor equipped with such a coil which can be used for treating a viscous medium or for carrying out chemical reactions, such as 6-6 polyamide polymerization.

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St. Bonnet de Mure, France

Thierry Nuris