METHOD FOR PRODUCING MOLYBDENUM GRANULATED POWDER, AND MOLYBDENUM GRANULATED POWDER

WIPO Patent Application WO/2012/157336

A1

A method for producing a molybdenum granulated powder, which is characterized by comprising: a step wherein an organic solvent is introduced into a container; a step wherein a polyvinyl butyral is added into the container as a binder; a step wherein a molybdenum-containing aqueous solution is prepared by pouring a molybdenum powder having an average particle diameter of 1-10 μm into the organic solvent, while stirring the organic solvent; and a step wherein the molybdenum-containing aqueous solution is poured into a spray dryer and then dispersed and dried, so that a molybdenum granulated powder is prepared, in said spray dryer the ratio A/B being within the range of 50-700 when the number of revolutions of a rotating plate of the spray dryer for dispersing the molybdenum-containing aqueous solution is represented by A (rpm) and the average particle diameter of a molybdenum granulated powder is represented by B (μm). The above-described configuration enables the efficient production of a molybdenum granulated powder having a desired average particle diameter.

MORIOKA TSUTOMU
AOYAMA HITOSHI

PCT/JP2012/057271

November 22, 2012

March 22, 2012

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TOSHIBA KK (JP)
TOSHIBA MATERIALS CO LTD (JP)
MORIOKA TSUTOMU
AOYAMA HITOSHI

B22F1/00; B22F3/02; C22C27/04

JP2005120400A	2005-05-12
JP2008285759A	2008-11-27
JPH0198764A	1989-04-17
JPH11199948A	1999-07-27
JP2004052020A	2004-02-19
JP2005291530A	2005-10-20

TOKYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Tokyo international patent firm (JP)

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