Process for extraction of friedelin from cork smoker wash solids

摘要

This invention concerns a method for the extraction and separation of friedelin from the different components smoker wash solids, by means of simple mechanical, physical and chemical treatments. These treatments consist in the fragmentation of the resinous residue, percolation with organic solvents or mixtures of organic solvents at temperatures between room temperature and the boiling point of solvents or mixtures and percolation with alkaline salt solutions, followed by distillation and drying of the extracts. These methods are characterized by a final friedelin yield, that may vary beteween 1% and 3%, with a putity degree (HPLC) within the range of 87%-101%.