Recovery of gold from secondary sources—A …
01.03.2012· Flow chart of gold recovery from gold scraps. 3. Overview of gold recovery techniques . There are a number of control technologies for recovery of gold from secondary sources and send it towards recycling. 3.1. Pyrometallurgical process. Pyrometallurgical process, including incineration, smelting in a plasma arc furnace or blast furnace, dressing, sintering, melting and reactions in a gas ...