The invention discloses an efficient enrichment method for
precious metal secondary resources. The method comprises the steps that
precious metal secondary resource materials, a
copper collecting agent, a
reducing agent, a
slag forming constituent, a binding agent and water are subjected to full wet-
grinding in a
ball mill, and are mixed evenly and manufactured into
pellets through a ball forming
machine, and the
pellets are dried to obtain composite
pellets; after waste
copper is molten in an intermediate-frequency furnace, the composite pellets are added into the intermediate-frequency furnace in batches and are subjected to mixing
smelting for a period of time,
smelting slag is fished out, and molten
copper is poured into a
casting mold to form a
copper anode plate;
cathode copper is obtained through an
electrolysis method, precious metals enter
anode mud, and electrolytic residual anodes return to conduct
smelting and pouring on the
anode plate and conduct
electrolysis again; the
anode mud is subjected to pressure acid leaching, filtering and washing to obtain
precious metal concentrate, and accordingly precious
metal enrichment is realized. By means of the method, the process is simple, the raw materials are high in adaptability, high efficiency and environmental friendliness are achieved, the
enrichment ratio is high, cost is low, and industrialization is facilitated.