Attempts to economically and effectively treat copper slag and ferruginous manganese ore using the traditional direct reductionmagnetic separation process have faced many challenges, such as low levels of metal recovery, poor cost effectiveness and the need for a high proportion of additives.
The roasting magnetic separation process is the route to convert the metals into a desired phase, which can be easily separated from the slag through mixing copper slag with calcium oxide as ﬂuxes and carbon as a reducing agent, then roasting the mixture at a temperature of about 12001300 C, followed by magnetic separation to recover iron from the copper ﬂotation slag 1822.
Slag Deepfield Copper Electromagnet Few materials are as damaging to magnets and equipment as slag, but the extra heavy duty structural design of the Slag Deepfield Copper Electromagnet is built to take it. Whether its ultra abrasive scrap, slabs, billets, drop balls, or slag scrap, this is the magnet that can do it all. The copper wound version
Iron Recovery from Discarded Copper Slag in a RHF Direct Reduction and Subsequent Grinding/Magnetic Separation Process. ... 0.074 mm accounting for 72.1% of the copper slag mix and magnetic ﬁeld ...
CuCoFe matte obtained from copper converter slag by reductive sulfidizing smelting was treated by magnetic separation sulphuric acid leaching process to recover the metal values, copper and cobalt.
An innovative technology for direct reduction magnetic separation with the addition of Na 2 CO 3 and CaO was studied to upgrade copper slag assaying 40.33% Fe total and 0.65% Cu. It is difficult to recover iron and copper from the slag by direct reduction since the iron mainly occurs in fayalite and the copper exists in copper sulfide.
Aiming at recovering iron from high iron content copper slag, this article introduced a combination technology of deep reduction and magnetic beneficiation, investigated the iron recovery efficiency and optimized the technical conditions.
takes copper slag from a domestic copper smelting plant as the object of study. In the studies, the basic and pilot plant tests have been conducted following the RHF DR and grinding/magnetic separation
By using DR followed by a magnetic separation process for iron recovery from copper slag, Yang 10 obtained iron powder of 92.05% iron content with an iron recovery rate of 81.01%, and Wang 11 obtained iron powder of 92.96% iron content with an iron recovery rate of 93.49%. Both of their tests have achieved good results.
Studies on the direct reduction of carbon bearing pellets made from discarded copper slag have been conducted in this paper. They include the influences of reduction coal content, limestone content, industrial sodium carbonate content, reduction temperature, reduction time and layers of carbon bearing pellets on reduction effect. Finally, the optimum conditions have been obtained. The pilot ...