Njira Yoyankha (RSM) idagwiritsidwa ntchito pophunzira Nitric acid ndondomeko ya zinyalala za CO mod hydrotting zothandizira. Cholinga cha kafukufukuyu chinali kuyambitsa co ndi mo kuchokera ku zokolola mu zosungunulira mu mawonekedwe a madzi osungunuka, kuti muchepetse mankhwala osokoneza bongo komanso kuchuluka kwa madzi okhazikika. Zinthu zazikuluzikulu zinkatsimikiziridwa ndi njira zothandizira poyankha, ndipo mawonekedwe a mtundu wa madongosolo ndi cobalt ndi molbdnum chiwerengero chokhazikika chidakhazikitsidwa. Pansi pazinthu zoyenera zomwe zimapezeka ndi mtunduwo, kuchuluka kwa cobalt kudalipo kunali kopitilira 96%, ndipo mtengo wa molybdenum kunali kopitilira 97%. Zinawonetsa kuti magawo oyenera omwe amapezeka ndi njira yoyankhira anali olondola komanso odalirika, ndipo akhoza kugwiritsidwa ntchito kutsogolera njira yeniyeni yopanga