Patent ID: 9157033
Filing Date: 2015-10-13
Classification: C10G,C22B,Y02P,Y02W

Abstract:
1. A process for recovering metals from a stream comprising hydrocarbons and carbonaceous residues, the process comprising: (a) sending said stream for extraction by mixing said stream with a hydrophilizing agent capable of removing hydrophobic species of said stream; (b) sending the mixture from (a) and said hydrophilizing agent for separation, thereby separating a liquid phase containing most of the hydrophilizing agent and hydrocarbons dissolved from a solid phase; (c) optionally, subjecting the separated solid phase from (b) to drying at a maximum temperature of 350° C., thereby removing medium-light hydrocarbon components from the solid phase; (d) sending the separated solid phase from (b), optionally dried in (c), for leaching with an alkaline metal in solution, air and/or oxygen and an emulsifying agent or its precursor; (e) sending a leached mixture from (d) for separation, thereby separating a solid residue from liquor, wherein the stream is fed, before being sent for the extraction (a), to a primary treatment, carried out in one or more steps, wherein said stream is mixed with a fluxing agent and treated in an apparatus at a temperature of from 80 to 180° C. and subjected to liquid/solid separation, thereby obtaining a clarified product consisting essentially of liquids and a phase comprising solids which is then sent to the extraction (a).