Method for producing powder from polycrystalline inorganic mater

Details Method for producing powder from polycrystalline inorganic mater Method for producing powder from polycrystalline inorganic mater

1993-02-12

1996-06-11

Husar, John

Solid material comminution or disintegration

Processes

241 18, 241 23, 241 29, B02C 1900, B02C 1912

Patent

active

055248365

ABSTRACT:
A method for producing powder from polycrystalline inorganic material by contacting polycrystalline inorganic material with the vapor of one or more reduced alkali metals in an environment substantially free of oxygen for a period of time sufficient to cause disintegration of the polycrystalline inorganic material into powder. The polycrystalline inorganic material may consist of one or more oxides, sulfides, or silicates, or combinations thereof. The polycrystalline inorganic material may also comprise a rock or mineral, such as basalt or pyrite.

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