US PATENT SUBCLASS 423 / 65
.~.~ Forming insoluble substance in liquid

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.~.~ Forming insoluble substance in liquid {2}
66  DF  .~.~.~> Hydroxylating or hydrating
67  DF  .~.~.~> Ammoniating or sulfating

DEFINITION

Classification: 423/65

(under subclass 62) Processes wherein a liquid or slurry is treated to form a substance which is insoluble therein and comes out of solution, or wherein the composition of the liquid is changed so that one part of the mixture becomes insoluble therein, so the insoluble substance can be separated from the liquid and the materials which remain soluble in the liquid.

(1) Note. Crystallization of a substance is included under this definition of insolubilization.