| abstract |
A method for recycling wrapped complex copper oxide ores. A wrapped copper oxide ore which is difficult to recycle by floatation and has a low direct acid leaching rate is subjected to a combination of vulcanization, xanthate, fatty acid salt, and hydroximic acid to float free copper oxide, ferrous and biotite ores wrapping a copper ore in ores are recycled by magnetic separation, and a large amount of low-grade copper-containing tailings are separated. Copper resources in a rough concentrate containing wrapped copper are recycled by high-temperature pressurizing, stirring, leaching and intensifying, ore pulp is leached out at high temperature and is mixed with low-grade copper-containing tailings to continue leaching by waste heat and waste acid to obtain the copper ore in tailings, the wrapped copper oxide ores which cannot be recycled by flotation directly and acid leaching directly are efficiently recycled. The technical difficulties of processing and using of wrapped complex copper oxide ore resources are economically and effectively resolved. |