US PATENT SUBCLASS 75 / 747
.~.~ Noble metal containing metalliferous material

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}
746  DF  .~ Consolidating metalliferous material (e.g., ore, tailings, flue dust, fluxes, etc.) by agglomerating, compacting, or heat treating; preparatory process therefor; or treating consolidated material therefrom {5}
747.~.~ Noble metal containing metalliferous material

DEFINITION

Classification: 75/747

Noble metal containing metalliferous material:

(under subclass 746) Process involving consolidation of Noble metal containing metalliferous material without chemical production of free Noble metal that remains in the product.

SEE OR SEARCH THIS CLASS, SUBCLASS:

388, for amalgamation processes.

631+, for processes of chemically reducing Noble metal containing metalliferous materials to the zero valent state.