METHOD FOR EXTRACTING SOLID SOLUBLE CHARGES CONTAINED IN A PASTE

摘要

The main subject of the present invention is a process for processing a paste (5) containing a solid charge (C) with a view to extracting at least one part of said solid charge (C). Said process comprises continuously:
mixing, in a mixer (8), said paste (5) with a liquid solvent (3), a solvent for said at least one part of said solid charge (C), with a view to dissolving, at least partially, said at least one part of said solid charge (C) in said solvent (3);recovering, after said mixing, a biphasic system (15) comprising, on the one hand, a solution (3′) enclosing at least one fraction of said at least one part of said solid charge (C), dissolved in said solvent (3), and on the other hand, a solid residue (5′) of said paste (5); and then,separating said solution (3′) and said solid residue (5′) of said paste (5).

主权项

1. A process for processing a paste containing a solid charge with a view to extracting at least one part of said solid charge, which comprises, continuously:
mixing, in a mixer, said paste with a liquid solvent, which is a solvent for said at least one part of said solid charge, with a view to dissolving, at least partially, said at least one part of said solid charge in said solvent; recovering, after said mixing, a two-phase system comprising, on the one hand, a solution containing at least one fraction of said at least one part of said solid charge, dissolved in said solvent, and, on the other hand, a solid residue of said paste; and then separating said solution from said solid residue of said paste.