Magnesium-magnesium chloride bath separation

Abstract

Abstract MAGNESIUM METAL, WHEN REMOVED FROM THE ELECTROLYTIC CELLS FROM WHICH IT IS PRODUCED, UNAVOIDABLY HAS AN APPRECIABLE AMOUNT OF ELECTROLYTIC BATH, ALSO USUALLY A SMALL AMOUNTOF PARTICULATE SOLID IMPURITIES (COMMONLY CALLED SLUDGE) ADHERING TO THE METAL. THE SEPARATION OF THE ELECTROLYTIC BATH THEREFROM AND THE DISPOSAL THEREOF IS ATTAINED BY THE PRACTICE OF THE INVENTION WHICH COMPRISES, BROADLY, PASSING THE MIXTURE OF MOLTEN METAL AND BATH, TOGETHER WITH THE SOLID PARTICULATE SLUDGE THEREIN, ONTO A WIRE MESH METAL SCREEN, HAVING OPENINGS IN THE RANGE OF ABOUT 2.46 MM. TO ABOUT 0.84 MM., WHEREBY THE BATH FALLS THROUGH THE SCREEEN AND IS OPTIONALLY TRANSFERRED ONTO A COOLER COLLECTING SURFACE, PREFERABLY A PORTABLE SURFACE WHERE IT SOLIDIFIES, AND THE MOLTEN METAL, AND ANY PARTICULAT SOLID IMPURITIES PRESENT, PASSES ON PREFERABLY INTO A HEATED HOLDING VESSEL OR RESERVOIR FROM WHICH MOLTEN METAL IS BEING DRAWN FOR CASTING. IN THE PREFERRED EMBODIMENT OF THE INVETION THE MOLTEN MAGNESIUM CONTAINING SLUDGE PARTICLES IS PASSED ONTO A WIRE MESH SIEVE, HAVING OPENINGS OF FROM BETWEEN ABOUT 2.60 MM. TO ABOUT 5.60 MM., USUSUALLY IN THE FORM OF A BASKET, THE SLUDGE BEING RETAINED THEREON AND THE MOLTEN MAGNESIUM PASSING THROUGH TO THE HOLDING VESSEL.

Inventors

• 👤 W Bradshaw

Bibliographic Details