US PATENT SUBCLASS 423 / 92
.~.~ Forming insoluble substance in liquid

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}
89  DF  .~ Group IVA metal (Ge, Sn, or Pb) {5}
92.~.~ Forming insoluble substance in liquid {3}
93  DF  .~.~.~> Pressurizing or agitating during reaction
94  DF  .~.~.~> Halogenating
95  DF  .~.~.~> Nitrating or sulfating

DEFINITION

Classification: 423/92

(under subclass 89) Processes in which a liquid or slurry is treated to form a substance which is insoluble in 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.