Continuous solution of polymer in liquid

A method for continuously preparing a homogeneous solution of powder in liquid comprising:

• introducing a liquid solvent and a solid solute into a mixing chamber;
• mixing said solid solute with said liquid solvent so that said solid solute dissolves in said liquid solvent to form a homogeneous solution;
• and
• placing a fluid dynamic separator comprising a Coanda effect separator within a flow of said solute and said solvent in said chamber, said fluid dynamic separator creating a region isolated from the rest of the flow in said chamber and causing solid particles of said solute that have not yet dissolved in said solvent to flow away from said region so that said region contains the homogeneous solution of said solute dissolved in said solvent,
• wherein said fluid dynamic separator comprises a bell having a head, a lip and an outer skirt, and the method comprises said solute and said solvent impinging upon the head of the bell, flowing along the outer skirt of the bell and flowing outwards off the lip of the bell, thereby causing the solid, undissolved particles to flow towards walls of said chamber away from said region.