Method for preparing high-activity electroplating grade copper oxide from basic cupric carbonate
A technology of electroplating grade copper oxide and copper carbonate, applied in the direction of copper oxide/copper hydroxide
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Embodiment 1
[0053] at 20m 3 pumped 15 meters into the concentrated ammonia water preparation tank with cooling coil 3Deionized water, open the valve of the liquid ammonia steel cylinder, make the pressure of the liquid ammonia passing into the preparation tank be 0.2MPa, pass through the ammonia gas for 6 hours, prepare the concentrated ammonia water with a concentration of 135g / L, close the valve of the liquid ammonia steel cylinder; open the liquid ammonia located in the preparation tank The valve of the cooling water pipe in the medium but not connected with the concentrated ammonia water is fed with cooling water with a temperature of less than 15°C, and then the valve of the carbon dioxide steel cylinder is opened to control the pressure of the carbon dioxide introduced at 0.2MPa and the degree of carbonization at 80% to obtain carbonic acid The amount concentration of ammonium substance is that the carbonated ammonia water of 3.18mol / L is packed into the storage container; In the co...
Embodiment 2
[0059] at 20m 3 The strong ammonia water preparation tank with cooling coil, pumped into 15 meters 3 Deionized water, open the valve of the liquid ammonia steel cylinder, make the pressure of the liquid ammonia passing into the preparation tank be 0.15MPa, pass the ammonia gas for 7 hours, prepare the concentrated ammonia water with a concentration of 120g / L, close the valve of the liquid ammonia steel cylinder; open the liquid ammonia located in the preparation tank The valve of the cooling water pipe in the middle but not connected with the concentrated ammonia water is fed with cooling water with a temperature lower than 15°C, and then the valve of the carbon dioxide steel cylinder is opened, and the pressure of the carbon dioxide is controlled to be 0.15MPa, and the degree of carbonization is 100%, and the ammonium carbonate substance is obtained. The quantity concentration is 3.53mol / L the carbonized ammonia water puts into the storage container; Puts 62.5×10 3 mol stand...
Embodiment 3
[0065] at 20m 3 The strong ammonia water preparation tank with cooling coil, pumped into 15 meters 3 For deionized water, open the valve of the liquid ammonia steel cylinder, make the pressure of the liquid ammonia passing into the preparation tank be 0.1MPa, pass ammonia gas for 7 hours, and prepare concentrated ammonia water with a concentration of 85g / L, close the valve of the liquid ammonia steel cylinder; The valve of the cooling water pipe in the medium but not connected with the concentrated ammonia water is passed into the cooling water with a temperature of less than 15°C, and then the valve of the carbon dioxide cylinder is opened to control the pressure of the carbon dioxide introduced at 0.1MPa and the degree of carbonization at 140%. The amount of ammonium substance concentration is 3.5mol / L of carbonated ammonia water into the storage container; 62.5 × 10 3 mol standard cathode copper plate, pumped into 3.5m3 containing 12.25×10 3 The carbonized ammonia water ...
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