US PATENT SUBCLASS 75 / 10.54
.~.~.~ Alkali metal, Alkaline earth metal, or compound thereof

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
10.1  DF  .~ Electrothermic processes (e.g., microwave, induction, resistance, electric arc, plasma, etc.) {17}
10.46  DF  .~.~ Adding solid treating agent, slag or flux {6}
10.54.~.~.~ Alkali metal, Alkaline earth metal, or compound thereof {4}
10.55  DF  .~.~.~.~> Calcium fluoride (e.g., Fluorspar, Fluorite, etc.)
10.56  DF  .~.~.~.~> Calcium carbide
10.57  DF  .~.~.~.~> Calcium carbonate (e.g., limestone, etc.)
10.58  DF  .~.~.~.~> Calcium oxide (e.g., lime, calx, etc.)

DEFINITION

Classification: 75/10.54

Alkali metal, Alkaline earth metal, or compound thereof:

(under subclass 10.46) Process wherein an Alkali metal, Alkaline earth metal, or compound thereof is present in the treating agent, separately prepared slag, or flux.