Abstract: The present invention provides a manufacturing method of crude copper from low-grade copper sludge, one embodiment of the present invention comprises the steps of: (1) calcining a low-grade copper sludge (step 1); (2) producing a mixture by adding at least one selected from a group consisting of binder, flux and combinations thereof to the calcined low-grade copper sludge (step 2); (3) producing a briquette by compression molding the mixture (step 3); (4) melting and reducing by charging the briquette into a submerged arc furnace with adding flux (step 4); and (5) separating crude copper and slag produced by melting and reducing (step 5).

Abstract: The disclosure describes a method of separating and recovering valuable metals from remanufacturing solution of a spent desulfurization catalyst containing vanadium, and more particularly, to a method of separating and recovering a valuable metal from remanufacturing solution of a spent desulfurization catalyst containing vanadium, which includes: adding organic acid to a spent hydrodesulfurization catalyst after collecting the spent hydrodesulfurization catalyst in order to prepare the remanufacturing solution of the spent hydrodesulfurization catalyst; adding an extracting agent and a diluent to the remanufacturing solution to extract molybdenum and extracting vanadium from an extracted filtrate to obtain an organic phase; and adding a stripping agent to the organic phase to strip and recover vanadium.