Method for preparing copper and nickel sulfate
A nickel sulfate and copper sulfate solution technology, which is applied to the improvement of process efficiency, photography technology, instruments, etc., can solve the problems of high energy consumption, poor quality of cathode copper, waste of resources, etc., and achieve low energy consumption, high recovery rate, The effect of high production efficiency
Inactive Publication Date: 2016-05-04
江西华赣瑞林稀贵金属科技有限公司
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Problems solved by technology
For this reason, an object of the present invention is to propose a method for preparing copper and nickel sulfate, which solves the problems of poor cathode copper quality, high energy consumption, and waste of resources in the current high-nickel anode copper treatment process
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Embodiment 1
[0045] The smelting waste mainly copper and nickel produced during the ore smelting process, electronic waste, low-grade miscellaneous copper, etc. are used as raw materials for smelting and casting into anode plates, of which the copper content is 92% and the nickel content is 6%. Select the dense and flat copper initial electrode as the cathode, and the copper sulfate solution as the electrolyte for electrolysis. The pole distance of the electrodes is 115-125mm, and the current density is 180A / m 2 , the temperature of the electrolyte is controlled at about 62°C, the Cu of the electrolyte 2+ The concentration is kept at 30-45g / L, and the acidity is kept at 120-160g / L. The dosage of the mixed additive composed of bone glue, thiourea and casein is 150g per ton of cathode copper produced, the circulation flow of electrolyte is about 15L / min, and the pressure filtration volume of electrolyte is 30% of the circulation volume.
[0046] During electrolysis, the nickel and copper of...
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Abstract
The invention discloses a method for preparing copper and nickel sulfate. The method comprises the following steps: carrying out smelting and casting treatment on a raw material containing nickel and copper to obtain a high-nickel copper plate, wherein the nickel content in the high-nickel copper plate is 5-11 wt%; carrying out electrolytic treatment by using the high-nickel copper plate as an anode and copper sulfate as an electrolyte to obtain copper, wherein the electrolytic treatment is carried out at 58-68 DEG C under the current density of 130-230A / m<2>; and carrying out purifying treatment on the electrolyte to obtain nickel sulfate and a copper sulfate solution. The method has the advantages of high nickel content in the anode plate, high adaptability to raw materials, high recovery rate for copper and nickel sulfate and high production efficiency, is simple to operate in the preparation process, and can implement continuous automatic production.
Description
technical field [0001] The invention relates to the field of chemical industry, in particular to a method for preparing copper and nickel sulfate. Background technique [0002] For copper production enterprises, the quality of cathode copper directly affects their benefits, and nickel, which is more valuable than copper, cannot be effectively recovered. The above problems have long been the focus of attention. However, with the depletion of nickel and copper resources, the quality of raw materials currently available has been greatly reduced compared with the previous years, and the industry has also turned its attention to the utilization of secondary resources, including waste generated during the smelting process, industrial units Waste nickel-copper alloy parts, waste discarded by electronic component manufacturers, etc. The above raw materials are cast into anode copper after pyrometallurgy, and then electrolyzed. Due to the complexity of raw materials, the nickel con...
Claims
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IPC IPC(8): C25C1/12C25C7/06
CPCC25C1/12C25C7/06Y02P10/20
Inventor 刘志东叶逢春王红军王玮林荔
Owner 江西华赣瑞林稀贵金属科技有限公司