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, in a first phase, a solution containing at least one fraction of said at least one part of said solid charge, dissolved in said solvent, and, in a second phase, a solid residue of said paste; and then separating said solution from said solid residue of said paste; and wherein said paste is an energetic paste, comprising a solid charge that comprises first charges or second charges or a mixture thereof,
wherein the first charges are selected from the group consisting of charges of ammonium perchlorate, charges of alkali or alkaline-earth metal perchlorate, charges of alkali or alkaline-earth metal nitrate, and mixtures thereof, andthe second charges are explosive charges, selected from the group consisting of CL20 charges, octogen charges, hexogen charges, tolite charges, pentrite charges, and mixtures thereof.