Patent ID: 6468326
Filing Date: 2002-10-22
Classification: C22B,Y02P

Abstract:
A method for in-line filtration of a liquid metal, the method comprising the steps of:introducing the liquid metal into a treatment chamber; cleaning and degassing the liquid metal; pressurizing the liquid metal by injecting the liquid metal into a porous filtration element and tangential to a porous filtration surface of the filtration element; maintaining a tangential flow of the liquid metal relative to the porous filtration surface of the filtration element so that a portion of the liquid metal filters through the porous filtration surface of the filtration element and forms a filtered liquid metal while a remaining portion of the tangential flow of liquid metal remains unfiltered and simultaneously cleanses the porous filtration surface of the filtration element; evacuating the filtered liquid metal from the porous filtration element; and reintroducing the liquid metal which is unfiltered into the treatment chamber for further treatment.