C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
C01G 55/00 (2006.01)
Patent
CA 2082815
ABSTRACT In a method for purifying raw hologen complexes of platinum contaminated by other metals of the platinum group and/or non-noble metals, which are normally an intermediate stage in the separation of the metals of the platinum group, the effective purification step is the conversion of a. halogen complex of platinum which is only sparingly soluble in an aqueous medium by chemical reaction to another halogen complex with simultaneous reconstruction of the crystalline structure of the material. The method is a general method and is characterized by particularly high efficiency as regards the results of purification, the yield, very rapid throughput in simple apparatuses, low energy consumption and therefore high cost effectiveness.
Aktiengesellschaft Degussa
Kirby Eades Gale Baker
Renner Hermann
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