Rare duniya hanyoyin ƙarfe

Akwai manyan hanyoyin guda biyu na ƙarancin ƙarfe na duniya, wato hydrometallurgy da pyrometallurgy.

Hydrometallurgy yana cikin hanyar sinadarai na ƙarfe, kuma gabaɗayan tsari galibi yana cikin bayani da sauran ƙarfi. Alal misali, bazuwar m ƙasa maida hankali, rabuwa da hakar narare duniya oxides, mahadi, da kuma guda rare duniya karafa amfani da sinadaran rabuwa tafiyar matakai kamar hazo, crystallization, hadawan abu da iskar shaka-rage, sauran ƙarfi hakar, da kuma ion musayar. Hanyar da aka fi amfani da ita ita ce hakar sauran ƙarfi, wanda shine tsari na duniya don rarrabuwar masana'antu na manyan abubuwan da ba kasafai ba na duniya. Tsarin hydrometallurgical yana da rikitarwa, kuma samfurin yana da girma. Wannan hanya tana da aikace-aikace da yawa a cikin samar da ƙãre kayayyakin.

Tsarin pyrometallurgical yana da sauƙi kuma yana da babban yawan aiki.Rare ƙasapyrometallurgy yafi hada da shirye-shiryen da ba kasafai duniya gami ta silicothermic rage, rare duniya karafa ko gami ta narkakkar gishiri electrolysis, da rare ƙasa gami ta karfe thermal rage. Halayen gama gari na pyrometallurgy shine samarwa a ƙarƙashin yanayin zafi mai girma.