Скачать с ютуб Smelting and Gold Refining Part 1: Smelting sulfides and black sands to recover gold/silver в хорошем качестве

Smelting and Gold Refining Part 1: Smelting sulfides and black sands to recover gold/silver

This is a video showing one potential way to recover the gold and silver values from the sulfide and black sand concentrates that come off our shaker table. These concentrates still can have appreciable gold values even when the free gold has been removed. When the concentrates to be smelted do not contain a sufficiently high precious metal content (between 25%-50% precious metals) a collector metal must be used to draw the precious metals to the bottom of the conical mold to ensure the recovery of the gold and silver. I have been using copper as a collector metal due to its low cost and ease of refining after smelting. I will be very interested to hear from you all what you think of the video and if you have any suggestions or tip for future smelts for higher recovery. Links to helpful info: Sampling and Assaying Precious Metals: https://archive.org/stream/samplingan... A Textbook of Fire Assaying: https://archive.org/stream/textbookof... Fire Assaying: https://archive.org/stream/fireassayi... Info on Matte: http://www.coralsas.eu/DocsHtm/TConte... The Chemistry of gold extraction: https://books.google.com/books?id=Ouo... Iron and oxidizing flux: http://www.doiserbia.nb.rs/img/doi/14... [email protected] 360-595-4445 Website: https://mbmmllc.info/96