Device for extracting active substances contained in solid or liquid substrates, has coupler permitting circulation of supercritical fluid between extractor and receiver and creating pressure modulations of supercritical fluid in extractor

摘要

The device has a coupler connecting a high pressure autoclave i.e. extractor, and a high pressure autoclave i.e. receiver. The coupler is formed by a high pressure pump i.e. supercritical fluid pump (FSC21), supplying a supercritical fluid i.e. supercritical carbon dioxide, and sectional valves (V6, V7). The coupler permits the circulation of the supercritical fluid between the extractor and the receiver, and creates pressure modulations of the supercritical fluid in the extractor.