发明名称 |
Method for producing highly pure platinum powder, as well as platinum powder that can be obtained according to said method, and use thereof |
摘要 |
A method for producing highly pure platinum on an industrial scale, as well as the use of said highly pure platinum. According to the method, a hexahalogenoplatinate is reduced to platinum in acidic conditions. |
申请公布号 |
US9562275(B2) |
申请公布日期 |
2017.02.07 |
申请号 |
US201414196095 |
申请日期 |
2014.03.04 |
申请人 |
HERAEUS DEUTSCHLAND GMBH & CO., KG |
发明人 |
Kralik Joachim;Stettner Martin;Von Eiff Hermann;Schapp Jan |
分类号 |
C22C5/04;C22B3/00;C22B3/44 |
主分类号 |
C22C5/04 |
代理机构 |
Norris McLaughlin & Marcus, P.A. |
代理人 |
Norris McLaughlin & Marcus, P.A. |
主权项 |
1. Method for producing highly pure platinum, comprising:
producing a mixture comprising a nitrogen-containing hexahalogenoplatinate and water having a pH value of 0 to 4; heating the mixture to a temperature of 30° C. or higher; carrying out a reduction of the mixture at a pH value during the reduction of 0 to 4 in order to precipitate platinum in the form of a platinum sponge. |
地址 |
Hanau DE |