Method for extracting organic compounds from granulated cork

摘要

Organic compounds present in granulated cork are extracted by dispersively applying a supercritical fluid comprising at least two different gases in a supercritical state. This way of extraction performed in an extractor can be combined with a previous extraction using vapor continuously performed in another extractor when moving the cork from one extractor to another using a stopper. Each extractor is further supported on a vibratory base, whereby a more uniform contact of the vapor or supercritical fluid with the granulated cork is obtained. The gases coming from the extraction are recirculated through several recirculation circuits to make the most use of gases. One of the components in which the recirculation consists is a condenser with conical body, providing a higher surface for evaporating the coolant fluid and thereby increasing the condensation of gases.