Method for extracting soluble solid charge contained in paste

摘要

The subject of the present invention is a method of processing a paste (5) comprising a solid charge (C) to extract at least a part of this solid charge (C). The method comprises the following sequential steps: static so as to at least partly dissolve at least part of the solid charge (C) in the liquid solvent (3) for at least part of the solid charge (C). Mixing the paste (5) with the solvent (3) in a mechanical mixer (8); after mixing, at least a fraction of at least a portion of the solid charge (C) is mixed with the solvent (3 Recovering the two-phase system (15) containing the solution (3 ′) dissolved in) and on the other hand the solid residue (5 ′) of the paste (5); and then the solution (3 ′) and the Separating the solid residue (5 ′) of the paste (5). [Selection] Figure 1