The hydrometallurgy of copper . ows the apparatus employed by Douglas in carryingout his process, in which the vessel or electrolyzer 1 is closed by thecover 2 and receives the solid cuprous chloride 3 and electrolyte 4, which U. S. Pat. No. 563,143, June 30, 1896, and No. 664,537, Dec. 25, 1900. 348 HYDROMETALLUBGY OF COPPER varies under different conditions. For instance, at one stage of theprocess the electrolyte may consist of solid cuprous chloride, into whichthe cathode is placed, and water slightly acidified with, say, hydro-chloric acid, to enable it to conduct the current. As the proc
The hydrometallurgy of copper . ows the apparatus employed by Douglas in carryingout his process, in which the vessel or electrolyzer 1 is closed by thecover 2 and receives the solid cuprous chloride 3 and electrolyte 4, which U. S. Pat. No. 563,143, June 30, 1896, and No. 664,537, Dec. 25, 1900. 348 HYDROMETALLUBGY OF COPPER varies under different conditions. For instance, at one stage of theprocess the electrolyte may consist of solid cuprous chloride, into whichthe cathode is placed, and water slightly acidified with, say, hydro-chloric acid, to enable it to conduct the current. As the process goes onthe current deposits metallic copper and liberates chlorine and chlorinecompounds, and at the end of this stage the electrolyte is a more or lessacid solution of the above gases. This electrolyte may be used forleaching purposes, and when the solution so obtained is used directlyas an electrolyte it will contain principally various chlorine and othercompounds of copper in addition to various compounds of other metals. s 6 Fig. 62.—Douglas process for electrolyzing solid cuprous chloride. present as impurities. The electrolyte, therefore, is composed of solidcuprous chloride and a solution containing acid and various compoundsof copper and other metals. The anode 5 is immersed in the electrolyteand the cathode 6 is inserted in the cuprous chloride. The tower 8 isconnected with the electrolyzer by means of a pipe 7. The copper oreor matte 9 is placed in the receptacle 8, and is dissolved by the chlorineor gaseous compound of chlorine evolved from the electrolytic separationof the cuprous chloride in the electrolyzer 1. When the copper ore or matte 9 in the receptacle 8 is subjected tochlorine or gaseous compound of chlorine, the compounds of copperformed consist in part of cupric chloride, which is soluble in water, andin part of cuprous chloride, which is insoluble in water, but may be dis-solved by a solution of any of the alkaline chlorides, such as chloride ofsod
Size: 1838px × 1359px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidcu3192400467, bookyear1912
