The acid leaching reaction of the alloy is slow
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The alloy mainly contains copper, cobalt, and iron, with some silicon as well; the theoretical amount is 1.2 times that. The leaching process using sulfuric acid proceeds very slowly, and the addition of oxygen also happens at a slow pace. Logically, cobalt-iron should react with the acid quite quickly, but the acidity of the solution did not decrease; the pH remained below 0.5. Could it be that silicon is surrounding the copper and cobalt, which is why the reaction proceeds slowly? Also, the leached solution is difficult to filter; silicon must be present in it. How to solve this problem? .
The last edit to this post was made by Their crimes have finally come to light on 2014-8-5 at 07:34. Reply to 1# pj1987cool: In the situation you mentioned, it is likely necessary to first disrupt the structure of this alloy through oxidative roasting, and then carry out acid leaching; only in this way can a good leaching rate be achieved. You might as well try an experiment first.
Reply to 1# pj1987cool: I think it might have nothing to do with the use of beads in the alloy. During the refining of gold and silver, the use of beads is necessary for a proper reaction to occur; increasing the specific surface area as well as the temperature play a significant role in the speed and extent of the reaction.
This post was last edited by Their crimes have finally come to light on 2014-8-5 07:34. Use a bridge to ensure fast dissolution.
What are the approximate contents of copper, cobalt, iron, and silicon as the main components of this alloy? Could you let me know?
This post was last edited by Their crimes have finally come to light on 2014-8-5 07:36. Copper, cobalt, and iron alloys, also known as white alloys, are currently the main raw materials used in the wet processing of cobalt. We use the atmospheric pressure air oxidation method for production, and the results are excellent – the levels of copper and cobalt in the slag are below 0.5%. At present, the production cost is much lower than that of using ore directly. Some of the technical issues involved can be discussed in a private message.