small copper ore concentration plant for sale. small copper ore concentration plant for sale. small copper ore concentration plant for sale. copper wikipedia, the free encyclopedia. copper is synthesized in massive stars and is present in the earth's crust at a concentration of about 50 parts per million ppm, where it occurs as native copper .
Copper can be extracted from nonsulphide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulphuric acid to produce a very dilute copper(II) sulphate solution. Concentration of the copper(II) sulphate solution by solvent extraction.