US PATENT SUBCLASS 423 / 205
.~.~.~ Leaching or forming water soluble substance

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}
203  DF  .~.~ Subjecting mixture to pressure, vacuum, or steam {2}
205.~.~.~ Leaching or forming water soluble substance

DEFINITION

Classification: 423/205

(under subclass 203) Processes including the step of dissolving out part of a solid, or chemically forming a substance while is soluble in water; see Glossary for leaching.

SEE OR SEARCH THIS CLASS, SUBCLASS:

202, for processes which include the step of leaching with an acidic substance.