US PATENT SUBCLASS 423 / 121
.~.~.~.~ From bauxite

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

1  DF  TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15}
111  DF  .~ Group IIIA metal or beryllium (Al, Ga, In, Tl, or Be) {9}
115  DF  .~.~ Forming compound containing plural metals {4}
119  DF  .~.~.~ Alkali metal aluminate {2}
121.~.~.~.~ From bauxite

DEFINITION

Classification: 423/121

(under subclass 119) Processes wherein the mixture or source material is the mineral bauxite, which is naturally occurring Al2O(OH)4.