US PATENT SUBCLASS 423 / 158
.~.~ 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}
155  DF  .~ Alkaline earth metal (Mg, Ca, Sr, or Ba) {11}
158.~.~ Forming insoluble substance in liquid {8}
159  DF  .~.~.~> Subjecting mixture to pressure, vacuum, or steam
160  DF  .~.~.~> Agitating during reaction
161  DF  .~.~.~> Specified particle size used or made
162  DF  .~.~.~> Nitrating or ammoniating
163  DF  .~.~.~> Halogenating
164  DF  .~.~.~> Hydroxylating or hydrating
165  DF  .~.~.~> Carbonating
166  DF  .~.~.~> Sulfating

DEFINITION

Classification: 423/158

(under subclass 155) 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. Cystallization of a substance is included under this definition of insolubilization.