US PATENT SUBCLASS 423 / 66
.~.~.~ Hydroxylating or hydrating


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

1  DF  TREATING MIXTURE TO OBTAIN METAL CONTAINING COMPOUND {15}
62  DF  .~ Group VB metal (V, Nb, or Ta) {4}
65  DF  .~.~ Forming insoluble substance in liquid {2}
66.~.~.~ Hydroxylating or hydrating


DEFINITION

Classification: 423/66

(under subclass 65) Processes including the step of chemically forming a hydroxide or a hydrate.