The present invention addresses the processing of waste and low-value products that contain bone material to produce useful materials in reliable purities and compositions, at acceptable cost, and with high energy efficiency. In particular, the invention comprises a process that converts various feedstocks...http://www.google.co.uk/patents/US20050113611?utm_source=gb-gplus-sharePatent US20050113611 - Apparatus and process for separation of organic materials from attached insoluble solids, and conversion into useful products
