Patent ID: 7563426

Claim:
An apparatus including: (a) a reactant liquid vessel for containing a reactant liquid at a reactant liquid level; (b) an injection arrangement for injecting a stream of feed material into the reactant liquid vessel at a point below the reactant liquid level; (c) a collection chamber positioned to receive effluent escaping from the reactant liquid in the reactant liquid vessel in an effluent ejection area, the collection chamber having a vertical extent defined between a top wall and the surface of the reactant liquid in the effluent ejection area, and having a lateral extent defined between lateral walls extending transverse to the surface of the reactant liquid in the effluent ejection area, the top wall extending transverse to the lateral walls; (d) a collection surface forming a surface in the collection chamber, the collection surface residing at a position above the reactant liquid level and adjacent to the effluent ejection area; and (e) a collection surface charging device operatively connected to the collection surface to produce a desired electrical charge on the collection surface.