... breaking into pellets and screening to make the lump materials into pellet materials that meet the ... sodium metasilicate, is sodium silicate, cryolite, aluminum fluoride, brake powder, rubber additives, silica, calcium aluminate, TSP, SSP, ... intermediates, steel-making additives, melting agent, swelling, alumina powder, phosphogypsum, gypsum, benefication agent, environmental protection materials.etc ...