Experimental modeling of ankerite–pyrite interaction was carried out on a multi-anvil high-pressure apparatus “split sphere” type (6.3 GPa, 1050–1550 °C, 20–60 h). At T ? 1250 the formation pyrrhotite, dolomite, magnesite, and metastable graphite established. higher temperatures, generation two immiscible melts (carbonate sulfide ones), as well crystallization diamond growth seeds, occurred. It...

The preparation of high-purity sulfur and pyrrhotite by pyrolysis holds great potential to realize the high-value utilization pyrite concentrate (FeS2), i.e., a by-product during flotation sulfide ore. In this study, obtained from was taken as study object, effects acid types, initial acidity, leaching time, temperature, oxygen pressure, liquid-to-solid ratio on behavior under were explored. re...