US PATENT SUBCLASS 423 / 206.2
.~.~.~ Alkali carbonate from trona

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}
179  DF  .~ Alkali metal (Li, Na, K, Rb, or Cs) {12}
206.1  DF  .~.~ Mixture contains organic or carbonaceous impurity {2}
206.2.~.~.~ Alkali carbonate from trona

DEFINITION

Classification: 423/206.2

Alkali carbonate from trona:

(under subclass 206.1) Processes wherein the original mixture contains trona; i.e., an ore characterized by containing sodium carbonate.