A METHOD FOR PRODUCING ULTRAFINE NICKEL POWDER BY CHEMICAL REDUCTION

PURPOSE: A manufacturing method of minute Ni powder by chemical reduction is provided to shorten process time by adding hydrazine and sodium hypophosphite as a reducing agent. CONSTITUTION: First solution is made of hydroxide nickel by adding pH adjusting agent into nickel sulfate. Hydrazine and sod...

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Bibliographic Details
Main Author WON, CHANG WHAN
Format Patent
LanguageEnglish
Korean
Published 15.07.2010
Subjects
CASTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
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Summary:PURPOSE: A manufacturing method of minute Ni powder by chemical reduction is provided to shorten process time by adding hydrazine and sodium hypophosphite as a reducing agent. CONSTITUTION: First solution is made of hydroxide nickel by adding pH adjusting agent into nickel sulfate. Hydrazine and sodium hypophosphite are injected into the distilled water to make second solution. First solution and second solution are mixed and stirred to make Ni powder. The Ni powder is separated from solution. The separated Ni powder is cleaned and dried.
Bibliography:Application Number: KR20090000793