Importance

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Abstract

The invention relates to a process for depolymerization of a polyester feedstock, comprising:

a) conditioning of the feedstock using a means for at least partially melting the feedstock and at least one mixer, which are fed with the feedstock and a diol stream, with a ratio by weight between the diol stream and the feedstock of between 0.01 and 6.00, the volume degree of dilution with diol in each mixer being between 3% and 70%;b) depolymerization of the polyester feedstock at 150-300° C., the ratio by weight between the diol and the diester in step b) being adjusted between 0.3 and 8.0;c) optionally, the separation of the diol, at a temperature of between 60 and 250° C. and a pressure lower than that of step b).

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First Claim