Patent ID: 7959782

Claim:
A method of manufacturing a Ni—Pt alloy superior in workability, comprising the steps of: subjecting a raw material Ni having a purity of 3N level to electrolytical dissolution to obtain a solution containing Ni; neutralizing the solution containing Ni with ammonia to obtain a neutralized solution; removing impurities by filtering the neutralized solution with activated carbon to obtain a filtered solution; blowing carbon dioxide into the filtered solution to form nickel carbonate; exposing the nickel carbonate to a reducing atmosphere to prepare high purity Ni powder; dissolving a raw material Pt having a purity of 3N level into acid to obtain a solution containing Pt; subjecting the solution containing Pt to electrolysis to prepare high purity electrodeposited Pt; and melting the high purity Ni powder together with the high purity electrodeposited Pt to obtain the Ni-Pt alloy.