a process for removing aluminum and other metal chlorides from liquid chlorosilanes with the steps of : introducing a source of seed into a source of impure liquid chlorosilanes , initiating the crystallization of aluminum and other metal chlorides on the seed from the liquid chlorosilanes in a first agitated vessel , passing the resulting mixture of liquid and solids through a cooler into a second agitated vessel for additional crystallization , transferring the resulting mixture of liquid and solids into a solids removal device , transferring the liquid with reduced solids content to a further process or vessel and transferring the liquid with high solids content into a waste concentration device , passing the resulting liquid with reduced solids content to a further process or vessel and passing the resultant liquid with very high solids content to a waste storage vessel with agitation .