kivikssulatamine
sulatamine pooltooteks - kiviks, mis on lähteproduktiks Cu, Ni, Pb jt metallide tootmisel maakidest (vt kivi), melting and recombining the charge (roasted or unroasted sulfides) into a homogenous matte of metallic copper, nickel, cobalt, and iron sulfides and to give an iron and silicon oxide slag (see: matte)
