SOLPART project aims to develop and implement, for the first time at a pilot scale, a high temperature (800-1000°C) 24h/day solar process suitable for reactive particle thermal treatment in energy intensive non-metallic minerals’ industries, such as cement, lime, phosphate or clay processing. These industries, which are the second biggest energy consumers and CO2 emitter (behind the power industry), need the major part of their energy input as heat that is currently provided by combustion. Hence, the project challenges will be to demonstrate that solar energy can provide this process heat in a continuous mode including particle high temperature transport and storage systems.