Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Patent
1977-07-29
1979-05-15
Sever, Frank
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
75 20F, 75222, 210510, B01D 2702, B01D 2704
Patent
active
041546890
ABSTRACT:
The disclosure teaches an improvement in the filtration of molten metal especially aluminum using a removable vertically disposed filter plate and at least one fluxing gas inlet positioned in such a manner so as to introduce fluxing gas into the filter plate. The filter plate is provided with a bevelled peripheral surface mating with a like bevelled surface in a filter chamber so that the filter plate can be conveniently inserted in the chamber and removed therefrom. Fluxing gas is provided to the melt through the inlet and flows through the filter plate so as to assure extensive contact with the melt. Dissolved gases and non-metallic inclusions are thereby abstracted and removed from the melt.
REFERENCES:
patent: 1152875 (1915-09-01), Brockbank
patent: 3574646 (1971-04-01), Wismer et al.
patent: 3610421 (1970-01-01), Gurney
patent: 3897336 (1975-07-01), Bydalek et al.
Dore James E.
Preuss Robert K.
Yarwood John C.
Sever Frank
Swiss Aluminium Ltd.
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