Journal of Guangdong Non-ferrous Metals 

About: Journal of Guangdong Non-ferrous Metals is an academic journal. The journal publishes majorly in the area(s): Continuous casting & Alloy. Over the lifetime, 47 publications have been published receiving 64 citations.

Recovery of copper and iron in the converter slag from a copper smelter

Abstract: In the light of the close intergrowth and fine uneven dissemination of copper, iron, and silicon minerals in copper converter slag as well as the high hardness and difficult re- grinding of the slag, grinding and separating under different grinding fineness are tested. Fi- nally a stage grinding and stage separation flowsheet, which comprises grinding (--0. 043 mm up to 79. 6%), flotation, magnetic separation, regrinding for flotation middling and magnetic mineral together (--0. 040 mm up to 99. 32%), re--flotation, and re--rnagnetic sepa- ration, is adopted to treat the slag. Regrinding for magnetic rough concentrate is important for separation of iron and silicon. The feed of the converter slag contains 1. 58% Cu, of which copper sulphide, and copper metal amounts to 78. 68%, and 53. 54% Fe, of which magnetic iron oxide amounts to 28. 53%. As a result, the grade of copper concentrate is 19. 82% with the recovery of 85. 48%. In the meantime, magnetic iron oxide is also recov- ered. Iron concentrate contains 62. 525% Fe and 9. 94% SiO_2, with the iron recovery being 35. 02%.

Study on a novel magnetic hydrocyclone and its compound force field

Abstract: Magnetic hydrocyclone is a highly efficient device for the separation of magnetic materials.The compound force field of the novel magnetic hydrocyclone has been analyzed by means of testing and calculation.The amountof centrifugal force,magnetic field force and towing force has been quantitatively conjectured in theory,and the influence of the interlayer shear force and repulsive force on the magnetic aggregate has been qualitatively analyzed.Results indicate that the force which plays a decisive role in the separation is the centrifugal force.The size of the magnetic aggregates formed by magnetic particles and the strength of these aggregates are determined by the strength of the external magnetic field, the pulp concentration and the flow velocity of the pulp in the hydrocyclone.The counter- flow disk is the key partof the novel magnetic hydrocyclone,which plays a critical role in the reduction of metal loss.

Physicochemical principle for recovering tellurium by copper telluride method

Abstract: Tellurium is recoveried from copper electrolytic anode mud by reducing tellurium to copper telluride(Cu\-2Te) with copper in H\-2SO\-4 solution and then oxidizing acid leaching or oxidi- zing alkaline leaching Cu\-2Te. The formation, preparation and properties of copper telluride and the physicochemical principle for recovering tellurium are desoribed in this paper.

Effect of powder size and powder loading on the process of metal injection molding(MIM) for titanium

Abstract: The powder size and powder loading play an important role in the process of MIM. Experiments of MIM have been carried out with different powder sizes and powder loadings for Ti and the effect of them has been studied. Results show that with the suitable powder size and powder loading, the moldability is good and the relative density can reach as high as 97\^8%.

Effect of MnO_2 on properties of NiFe_2O_4 spinel based inert anode

Abstract: In order to improve the properties of NiFe_2O_4 spinel based inert anode, some additive MnO_2 were added to raw materials. NiFe_2O_4 spinel with MnO_2 was made by solid-phase reaction at 1200℃ for 6 h. XRD were carried out and the effects of MnO_2 on density, conductivity and corrosion resistance were measured. XRD shows when MnO_2 was added no new phases exist and MnO_2 and NiFe_2O_4 formed solid solution; Mn~ 4+ replaced parts of Fe~ 3+ and the sample still had the structure of NiFe_2O_4 spinel. The crystal lattice of NiFe_2O_4 spinel became aberrated when MnO_2 was added, which can promote sintering, and improve density. Because Mn~ 4+ replaces parts of Fe~ 3+ and produces conduction electron, which can improve conductivity. The corrosion resistance of the samples was enhanced. When MnO_2 is 1.0%, the sample's corrosion rate is 1/5 of that of the sample without MnO_2. The reason is that Al_2O_3 in the melt reacts with Mn~ 4+ in the sample to produce MnAl_2O_4. MnAl_2O_4 forms a dense protecting coat, which can prevent melt from eroding further. Because the key problem with inert anodes is anode corrosion, so we consider the optimal amount of MnO_2 is 1.0%.