Pumices, ashes, and tuffs from Mt. St. Helens and from Novarupta contain two principal forms of titanomagnetite: homogeneous grains with Curie temperatures in the range 350–500 C and oxyexsolved grains with similar bulk composition, containing ilmenite lamellae and having Curie temperatures above 500 C. Thermomagnetic analyses and isothermal annealing experiments in combination with stratigraph...

Vanadium titanomagnetite (VTM) is an important mineral for developing titanium resources, but the comprehensive recovery of ilmenite separation extremely poor, resulting in low-efficiency utilization resources. Here, from VTM ore studied by combining magnetic and flotation technologies. In particular, floatability mixed MOH/PG-1 collectors thoroughly investigated. The results show that a concen...

V-bearing molten iron was obtained by adding Na2CO3 in the smelting process of vanadium titanomagnetite at low temperature. Two forms V-rich carbides ((Fe,V)3C, VC) were detected pig products. Once temperature above 1300 °C, most V raw ore reduced into iron. Owning to high content V, unsteady (Fe,V)3C solid solution decomposed along with precipitation graphite and VC during solidification proce...

The Yeoncheon titanomagnetite deposit formed by Precambrian magma differentiation is located in Gyeonggi-do, South Korea. Our team conducted an airborne magnetic survey for multiscale mineral exploration and then selected a promising area. An electrical resistivity was carried out the potential area to image subsurface structure. Because ore minerals are mainly distributed gabbro monzodiorite r...

The thermochemical and electrical behavior of ironmaking slag produced from titanomagnetite concentrates has been assessed in the vicinity its tapping temperature. A combination electrochemical measurements a modified thermal imaging furnace computational thermodynamic calculations was employed to elucidate potential use as molten oxide electrolyte for extraction high-purity metal. results show...