Mhangura ore, inozivikanwawo sejecha remhangura slag kana jecha rechoto chemhangura, ndiyo slag inogadzirwa mushure mekunyungudutswa kwemhangura uye kubviswa, inozivikanwawo seyakanyungudutswa slag.Iyo slag inogadziriswa nekupwanya uye kuongorora zvinoenderana nekushandiswa kwakasiyana uye zvinodiwa, uye zvakatemwa zvinoratidzwa nemesh nhamba kana saizi yezvimedu.Ore yemhangura ine kuomarara kwakanyanya, chimiro nedhaimani, yakaderera yemukati yechloride ion, guruva shoma panguva yejecha, hapana kusvibiswa kwezvakatipoteredza, inovandudza mamiriro ekushanda evashandi vejecha, kuita ngura kubviswa kuri nani pane imwe jecha rekubvisa ngura, nekuti inogona kushandiswa zvakare, mabhenefiti ehupfumi zvakare akawandisa, makore gumi, iyo yekugadziridza chirimwa, nzvimbo yengarava uye mapurojekiti makuru esimbi ari kushandisa ore yemhangura sekubvisa ngura.
Kana inokurumidza uye inoshanda kupfapfaidza pendi inodiwa, mhangura slag ndiyo yakanakira sarudzo.Zvichienderana negiredhi, inogadzira inorema kusvika pakati nepakati etching uye inosiya pamusoro yakaputirwa neprimer uye pendi.Copper slag inodyiwa silica yemahara inotsiva yejecha requartz.