Metal-refining method pairs is INCORRECTLY matched?

Mond process: impure Ni reacts with CO at $\approx330$-$350\ \mathrm{K}$ to form volatile $\mathrm{Ni(CO)_4}$, which decomposes at $\approx450$-$470\ \mathrm{K}$ to pure Ni. van Arkel: Zr/Ti are converted to volatile iodides and decomposed on a hot tungsten filament. Zone refining is used for ultra-pure semiconductors Ge, Si, Ga. Copper is not purified by Mond process (it does not form a volatile carbonyl); blister copper is refined by poling and electrolytic refining.