US PATENT SUBCLASS 423 / 323
.~.~ Utilizing a phosphate as reactant

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

299  DF  PHOSPHORUS OR COMPOUND THEREOF {5}
322  DF  .~ Elemental phosphorus {1}
323.~.~ Utilizing a phosphate as reactant

DEFINITION

Classification: 423/323

(under subclass 322) Processes which include the step of reacting a material which contains a phosphate (PO4[supscrpt]3-[end supscrpt]) radical, e.g., phosphate rock, etc.