Abstract:
The massive accumulation of gold tailings not only occupies valuable land resources, but also has great security risks. These tailings contain high content metallic elements and non-metallic minerals, which has great recovery value and resource utilization prospect. Aiming at the resource utilization of gold tailings, the technical path and technological characteristics of recovering valuable metals such as gold, iron and lead and non-metallic minerals such as quartz, feldspar and sericite from gold tailings were described in detail. The technical scheme of activated gold tailings used as cementation material for filling mining area was analyzed. Meanwhile, the preparation of concrete, sintered brick, ceramite, foam ceramics and other building materials from gold tailings was discussed. Finally, the existing problems and research development direction of gold tailings resource utilization were reviewed.