Method for removing a magnesia doped alumina core material

Details Method for removing a magnesia doped alumina core material Method for removing a magnesia doped alumina core material

1977-03-09

1978-02-14

Carter, Herbert T.

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 29, 423111, 423131, 423155, 106 62, 164131, 164132, C23G 114, C01F 700

Patent

active

040736628

ABSTRACT:
Ceramic mold and core materials of magnesia doped alumina are removed from castings by a solution of either KOH or NaOH at elevated temperatures and pressures in an autoclave.

REFERENCES:
patent: 3121026 (1964-02-01), Beigay et al.
patent: 3473599 (1969-10-01), Lichfield
patent: 3563711 (1971-02-01), Hammond et al.
patent: 3694264 (1972-09-01), Weinland et al.
patent: 3722574 (1973-03-01), Anderson et al.
patent: 3743692 (1973-07-01), Vinton et al.

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