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METHOD FOR PRODUCING MOLYBDENUM GRANULATED POWDER AND MOLYBDENUM GRANULATED POWDER 发明申请

2023-02-17 3460 1066K 0

专利信息

申请日期 2025-07-12 申请号 WOJP12057341
公开(公告)号 WO2012169255A1 公开(公告)日 2012-12-13
公开国别 WO 申请人省市代码 全国
申请人 KABUSHIKI KAISHA TOSHIBA; TOSHIBA MATERIALS CO LTD; YAMAGUCHI Satoshi; MORIOKA Tsutomu; AOYAMA Hitoshi
简介 This method for producing a molybdenum granulated powder is characterized by comprising : a step in which an organic solvent is injected into a container; a step in which polyvinyl butyral is added to the organic solvent as a binder; a step in which a solution containing molybdenum is prepared by loading molybdenum powder, which has an average particle size of 1 to 10 μm, to which at least one type of rare earth element or rare earth compound has been added, while stirring the organic solvent; and a step in which the solution containing molybdenum is loaded in a spray dryer in which, when the rotation speed of a rotator of the spray dryer in which the solution containing molybdenum is to be dispersed is regarded as A (rpm), and the average particle size of the molybdenum granulated powder is regarded as B (μm), A/B ranges from 50 to 700, and the solution containing molybdenum is dispersed and dried to prepare the molybdenum granulated powder. The abovementioned method enables a molybdenum granulated powder having the intended average particle size, and containing a rare earth element or rare earth compound, to be efficiently produced at a high yield.


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