Njira yothetsera mphamvu yokoka ya poto yonyika ndiyotchuka kwambiri m'maiko ambiri aku Africa monga Zimbabwe, Egypt ndi Sudan, Njira zogwirira ntchito zikuphwanya → kupera → kusankha kwa knelson centrifugal concentrator (kupeza golide wamkulu waulere free → kugwedeza tebulo (kusankha golide wabwino Choyamba ikani mwalawo mu crusher ya nsagwada, mtundu wamba wa crusher ndi PE250x400, yomwe imakhala ndi tani 10 mpaka 20 pa ola limodzi. Mukaphwanya, mwalawo udagawika tinthu tating'ono kuposa 20mm. Tinthu timene timayikidwa mu mphero ya golide yonyowa, ndipo amapukutidwa kukhala ufa pafupifupi 100 mpaka 150 mesh (kuyambira 80 mpaka 150 micron). Kenako slurry wopangidwa mu mpoto wonyowa umasamutsidwa ku centrifugal concentrator, momwe golide wina wakuda amatoleredwa. Kenako tailing imapita pagome logwedezeka kuti lipezenso golide wotsalayo.
Zida zokoka zagolide zidzakwezedwa mu chidebe cha 20ft kapena 40ft malinga ndi malo ndi kulemera kwake. Mpaka pano, tatumiza zida zokoka kumayiko ambiri, kuphatikiza Sudan, Zimbabwe, Mauritania ndi Egypt.