US PATENT SUBCLASS 423 / 430
.~.~.~ Alkaline earth metal containing (Mg, Ca, Sr, or Ba)

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

414  DF  CARBON OR COMPOUND THEREOF {3}
415.1  DF  .~ Oxygen containing {5}
419.1  DF  .~.~ Carbonate or bicarbonate {5}
430.~.~.~ Alkaline earth metal containing (Mg, Ca, Sr, or Ba) {2}
431  DF  .~.~.~.~> By reacting sulfur or halogen containing compound
432  DF  .~.~.~.~> By reacting oxide or hydroxide of the metal

DEFINITION

Classification: 423/430

(under subclass 419.1) Products or processes wherein the carbonate contains magnesium, calcium, strontium or barium, i.e., the alkaline earth metals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

165, for processes of treating mixtures to obtain alkaline

earth metal carbonates.