公开(公告)号：EP3187289A4

公开(公告)日：2017-08-30

申请号：EP15830315

申请日：2015-08-07

Applicant: TANAKA PRECIOUS METAL IND

Inventor： WAGAWA AKITOSHI ,  NAGAOKA AKIO ,  KAWAI TAKEHIKO ,  YAMAZAKI TAKAHISA

IPC: B22F9/30 ,  B01J23/42 ,  B22F1/00 ,  B22F9/20

CPC classification number: C22C1/0466 ,  B01J23/42 ,  B22F1/0014 ,  B22F1/0018 ,  B22F9/20 ,  B22F9/30 ,  B22F2301/25 ,  B22F2998/10 ,  C22C5/04 ,  C22F1/14 ,  B22F2009/041 ,  B22F1/0088

Abstract: The present invention relates to a method for producing a platinum-based alloy powder, the method comprising a heat treatment of a mixed powder containing a platinum-based powder composed of at least one selected from the group consisting of platinum and platinum compound, a platinum group metal-based powder composed of at least one selected from the group consisting of iridium, rhodium, palladium, and compound containing at least one of them, and an alkaline-earth metal compound, wherein specific surface area of the platinum group metal-based powder is 30 m 2 /g or more and D90 of the mixed powder is 1.0 µm or less. According to the method for producing a platinum-based alloy powder of the invention, it is possible to produce a platinum-based alloy powder that has a desired particle diameter, also has a sharp particle size distribution, and has high purity and crystallinity.

Abstract translation: 铂系合金粉末的制造方法技术领域本发明涉及一种铂系合金粉末的制造方法，该方法包括对含有铂系粉末的混合粉末进行热处理，所述铂系粉末由选自铂和铂化合物中的至少一种，铂 由选自铱，铑，钯和含有它们中的至少一种的化合物中的至少一种和碱土金属化合物组成的组中的至少一种金属基粉末，其中所述铂族金属基的比表面积 粉末为30m 2 / g以上，混合粉末的D 90为1.0μm以下。 根据本发明的铂系合金粉末的制造方法，能够制造具有期望的粒径，且粒度分布窄且纯度和结晶性高的铂系合金粉末。