Onestep extraction of bismuth from bismuthinite in sodium carbonate ...
In view of serious shortcomings existing in the current bismuthinite metallurgical process, such as high energy consumption, low recovery rate of bismuth and lowconcentrate SO 2 fume pollution, a clean process was proposed, which involves molten salt smelting of bismuthinite concentrate. Using Na 2 CO 3 NaCl molten salt as reaction medium and Fe 2 O 3 as sulfurfixing agent, crude bismuth ...