A kind of method for preparing fine lead powder by electrodeposition
A technology of electrodeposition and fine lead, applied in the field of preparation of fine lead powder by electrodeposition, can solve the problems of high cost and insufficient environmental friendliness, and achieve the effect of small environmental impact, environmental friendliness and simple process operation
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Embodiment 1
[0020] This electrodeposition prepares the method for fine lead powder, and its concrete steps are as follows:
[0021] (1) Prepare the electrolyte: first mix the soluble lead salt, complexing agent, buffer, dispersant and water evenly and then prepare the electrolyte. The concentration of the soluble lead salt in the electrolyte is 0.05mol / L, and the soluble lead salt is Lead acetate, the mass percentage of complexing agent is 5%, complexing agent is glycerol, the concentration of buffering agent is 3mol / L, buffering agent is the acetic acid and sodium acetate mixture of mass ratio 1:1, the mass percentage of dispersing agent is 0.05%, the dispersant is sodium lauryl sulfate, and the remaining mass percentage is water;
[0022] (2) Electrodeposition process: use metal lead as the anode and titanium as the cathode, control the electrolyte temperature at 25°C, and the cathode current density at 200mA / cm 2 Under the conditions, in the electrolyte prepared in step (1), ultrasoni...
Embodiment 2
[0024] This electrodeposition prepares the method for fine lead powder, and its concrete steps are as follows:
[0025] (1) Prepare the electrolyte: first mix the soluble lead salt, complexing agent, buffer, dispersant and water evenly and then prepare the electrolyte. The concentration of the soluble lead salt in the electrolyte is 0.001mol / L, and the soluble lead salt is Lead fluoroborate, the mass percentage of the complexing agent is 0.01%, the complexing agent is citric acid, the concentration of the buffering agent is 2mol / L, the buffering agent is a mixture of boric acid and sodium fluoroborate with a mass ratio of 1:1, and the mass percentage of the dispersing agent is 0.01%, the dispersant is gelatin, and the remaining mass percentage is water;
[0026] (2) Composite electrodeposition process: use metal lead as the anode and titanium as the cathode, control the electrolyte temperature at 35°C, and the cathode current density at 260mA / cm 2 Under the condition, in the ...
Embodiment 3
[0028] This electrodeposition prepares the method for fine lead powder, and its concrete steps are as follows:
[0029] (1) Prepare the electrolyte: first mix the soluble lead salt, complexing agent, buffer, dispersant and water evenly and then prepare the electrolyte. The concentration of the soluble lead salt in the electrolyte is 0.05mol / L, and the soluble lead salt is Lead nitrate, the mass percentage of complexing agent is 0.06%, complexing agent is malic acid, the concentration of buffering agent is 2mol / L, buffering agent is the boric acid and sodium borate mixture of mass 1:1, the mass percentage of dispersing agent is 0.1 %, the dispersant is sodium dodecylbenzenesulfonate, and the remaining mass percentage is water;
[0030] (2) Composite electrodeposition process: use metal lead as the anode and titanium as the cathode, control the electrolyte temperature at 25°C, and the cathode current density at 400mA / cm 2 Under these conditions, in the electrolyte prepared in s...
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