US PATENT SUBCLASS 423 / 119
.~.~.~ Alkali metal aluminate

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.~.~.~ Alkali metal aluminate {2}
120  DF  .~.~.~.~> From alunite
121  DF  .~.~.~.~> From bauxite

DEFINITION

Classification: 423/119

(under subclass 115) Processes wherein the compound is an alkali metal aluminate, e.g., sodium aluminate

(Na2Al2[end subscrpt]04 or Na Al O2[end subscrpt]).