Flotation of Gold and Gold Bearing Ores ScienceDirect
The application of flotation on a reasonable scale within the gold mining industry commenced in the early 1930s following the introduction of water soluble flotation collectors specifically xanthates and dithiophosphate collectors that allowed differential flotation of sulfide minerals Weinig and Carpenter 1937 Rabone 1939 Richards and Locke 1940 Taggart 1945