Prerequisites for Processing a Foam Product in the Process of Bacterial Oxidation of Gold-Bearing Concentrates in a Separate CycleRustam Khamidov, Zhakhongir Narzullayev and Evgeniy KuznetsovE3S Web Conf., 278 (2021) 01012DOI: https://doi.org/10.1051/e3sconf/202127801012