A more widely used method of enhancing the flotation performance of oxidized ores is to allow the surface to react with sodium sulfide. This “sulfidization” process modifies the flotation response of the mineral causing it to behave, in effect, as a pseudo-sulfide (Chapter 12). Developments...
The effect of Russia’s agri-food ban on reported data is readily apparent in annual UN Comtrade data, which is available for almost all countries. Fig. 2 graphs reported exports of embargoed agri-food products to Russia for 2012 to 2020. A product is considered embargoed if it falls ...