US PATENT SUBCLASS 423 / 431
.~.~.~.~ By reacting sulfur or halogen containing compound

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  DF  .~.~.~ Alkaline earth metal containing (Mg, Ca, Sr, or Ba) {2}
431.~.~.~.~ By reacting sulfur or halogen containing compound

DEFINITION

Classification: 423/431

(under subclass 430) Processes which include the step of reacting a compound that contains sulfur or a halogen.

SEE OR SEARCH THIS CLASS, SUBCLASS:

165, for processes of treating mixtures to obtain an alkaline earth metal carbonate, including the steps of (1) forming an insoluble substance in a liquid, and (2) chemically forming a carbonate having the CO3[end subscrpt][supscrpt]2-[end supscrpt] radical.