C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 21/06 (2006.01) B01D 39/20 (2006.01)
Patent
CA 2728339
A method for filtering molten aluminum and aluminum alloys. The method includes providing a reticulated foam wherein oxygen is introduced to an interior of the reticulated foam. Molten aluminum or aluminum alloy is passed through said reticulated foam wherein oxygen is maintained at a partial pressure of at least 2.51 X 10-35 atm during filtration.
La présente invention concerne un procédé de filtration d'aluminium et d'alliages d'aluminium en fusion. Le procédé consiste à produire une mousse réticulée, de l'oxygène étant introduit à l'intérieur de la mousse réticulée. On fait passer l'aluminium ou l'alliage d'aluminium en fusion à travers ladite mousse réticulée, dans laquelle l'oxygène est maintenu à une pression partielle d'au moins 2,51 X 10-35 atm pendant la filtration.
Porvair Plc
R. William Wray & Associates
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