Stainless steel electrolytic plates
AssigneeXstrata Queensland Limited
InventorWayne Keith Webb
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Abstract
There is provided a substantially permanent stainless steel cathode plate suitable for use in electrorefining of metal cathodes, the cathode being composed of a low-nickel duplex steel or a lower grade “304” steel, wherein operational adherence of an electrodeposition thereon is enabled by altering various qualities of the cathode surface. There is also provided a method of producing the above duplex or Grade 304 cathode plates, such that the desired operational adherence of the deposit upon the plate is not so strong as to prevent the deposit being removed during subsequent handling.
Claims18
An electrolytic plate suitable as a substrate for the electrodeposition of a metal, said plate being at least partially comprised of duplex stainless steel or “Grade 304” steel, said plate having at least one surface for electrodeposition of said metal thereupon, said surface having a surface roughness to produce the adhesion necessary to allow operational adherence of an electrodeposit and subsequent handling thereof, said adhesion being insufficiently strong to prevent the mechanical separation of said electrodeposit from the surface.
A method of producing a duplex or a “Grade 304” steel electrolytic plate suitable for the electrodeposition and adherence of metal thereupon, said method including modifying the surface of a duplex a “Grade 304” steel plate to obtain a plating surface with modified surface roughness to produce the adhesion necessary to allow operational adherence of an electrolytic metal deposit and subsequent handling thereof, said adherence being insufficiently strong to prevent the mechanical separation of said electrodeposited metal from said modified surface.
Dependencies are inferred from the claim text.