US PATENT SUBCLASS 423 / 313
.~.~.~.~.~ Utilizing phosphoric acid as reactant

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

299  DF  PHOSPHORUS OR COMPOUND THEREOF {5}
304  DF  .~ Oxygen containing {2}
305  DF  .~.~ Metal or ammonium containing {5}
311  DF  .~.~.~ Orthophosphate {1}
312  DF  .~.~.~.~ Alkali metal or ammonium containing {1}
313.~.~.~.~.~ Utilizing phosphoric acid as reactant

DEFINITION

Classification: 423/313

(under subclass 312) Processes which includes the step of reacting phosphoric acid.