As a result, copper smelter capacity is increased and capital cost minimized. The reactions take place under pressure in autoclaves.The leaching process requires ferric ions to dissolve the copper from the ore. Ferric ion is continuously regenerated by reaction with oxygen and sulfuric acid in the solution. High copper containing precipitate is produced and iron and arsenic remain in an aqueous phase. The upgrade process includes sulfuric acid leaching of copper containing materials such as smelter dusts and conversion reaction with a chalcopyrite containing concentrate.
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The sand sifter that a kind of construction is as shown in Figure 1 used, comprise frame 1, be provided with the transmitting device 2 that is constant slope in frame 1 forward right side, above frame 1, be provided with sieve plate 3, be provided with the jittering device 4 being connected with sieve plate 3 in the both sides, front and back of frame 1, in the middle of frame 1, and the below that is positioned at sieve plate 3 is provided with fine sand gravel carrying case 5, below sieve plate 3 ends, be provided with coarse gravel carrying case 6, between transmitting device 2 and sieve plate 3, be provided with a guided plate 7, prevent between omission, be provided with at jittering device 4 and transmitting device 2 both sides the side plate 8 that prevents that gravel from leaking outside, prevent that gravel from leaking outside, described frame 1 comprises the console 9 of controlling each control device, be convenient to control.
1 thereof, there is depicted therein a pulverizing bowl mill, generally designated by reference numeral 10, constructed in accordance with the present invention. 3,465,971, which issued Sept. For a more detailed description of the nature of the constructin and the mode of operation of the components of the pulverizing bowl mill 10 which are not described in depth herein one may have reference to the prior art, e. Dalenberg et al. No., U.Referring now to the drawing, and more particularly to FIG. 1 of the drawing.g. 11, 1977 to C.S. J. Rather, it is deemed sufficient for purposes of obtaining an understanding of the pulverizing bowl mill 10 embodying improved primary classifier means in accordance with the present invention to merely present herein a description of the nature of the construction and the mode of operation of the components of the pulverizing bowl mill 10 with which the aforesaid primary classifier means cooperates. Pat. 9, 1969 to J. No., and/or U. Inasmuch as the nature of the construction and the mode of operation of pulverizing bowl mills per se are known to those skilled in the art, it is not deemed necessary, therefore, to set forth herein a detailed description of the pulverizing bowl mill 10 illustrated in FIG. F. Pat.S. 4,002,299, which issued Jan. Skalka.
e., to provide an included cone angle of 140°.While a tapered, or variable acceleration, hydrocyclone may be used in the process of the present invention, there are significant advantages in using the cylindrical, or constant acceleration, type disclosed with a shallow tapered bottom wall. The underflow from such a cyclone has a high solids to liquid ratio, because only about 2 to about 5% of the total throughput of the hydrocyclone exits the underflow, the balance being discharged from the overflow. For a 20" diameter cyclone having a 24" chamber length, the bottom wall should have a taper of 20° with respect to horizontal to provide a frusto-conical bottom with a tapered entrance to the underflow orifice, i. This minimizes the load on downstream dewatering equipment. Also, the specific gravity of the overflow and the underflow are substantially the same as the specific gravity of the operating medium.
There are no deposits for peridotites in Germany, but some deposits with lower olivine contents mainly in the areas of former volcanic activity as the Eifel, the Rhoen and the Northern Hessian Depression. The olivine occurs as gabbros and in corresponding gangue rocks, dolerites, in olivine bearing basalts, olivine nephelinite, “olivine-bombs”, and as xenoliths. The “olivine bombs” in the Eifel can contain nearly pure olivine, whereas the olivine basalts and basanite normally contain up to 10% or a minimum of 10% of olivine, respectively .
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