Main solutions for selecting copper oxide ores

The main solutions for selecting copper oxide ores at home and abroad are summarized as follows:
(1) Flotation method: direct flotation, sulfide flotation, etc.
(2) Hydrometallurgy: ammonia leaching method, acid leaching method.

(3) Leaching-sedimentation-flotation method.
The first is leaching with sulfuric acid, then replacing the copper with iron filings, and then using flotation to float out and precipitate the copper.
The second method uses NH3, CO2 leaching, sulfur (sulfur, pyrite, etc.) to precipitate copper sulfide and then flotation.
(4) Separation-flotation method.