Chemistry of inorganic compounds – Boron or compound thereof – Binary compound
Reexamination Certificate
2008-03-21
2009-06-02
Mayes, Melvin C (Department: 1793)
Chemistry of inorganic compounds
Boron or compound thereof
Binary compound
C423S289000, C423S295000
Reexamination Certificate
active
07541013
ABSTRACT:
The present invention relates to a method for manufacturing a transition metal boride powder. The method for manufacturing a transition metal boride powder includes: i) manufacturing a mixed powder by mixing a transition metal halogenide powder and an alkali metal borohydride powder; ii) charging the mixed powder and a plurality of balls into a reaction vessel; iii) charging an inert gas into the reaction vessel and sealing the reaction vessel; iv) high energy ball milling the mixed powder and manufacturing a composite powder containing a transition metal boride and an alkali metal halogenide; v) washing the composite powder in water, dissolving the alkali metal halogenide in the water and filtering the transition metal borides; and vi) drying the filtered transition metal boride and collecting the transition metal boride powder.
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Cho Young-Whan
Kim Ji-Woo
Shim Jae-Hyeok
Gregorio Guinever S
Kim Johnwon
Korea Institute of Science and Technology
Lexyourne IP Group, LLC
Mayes Melvin C
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