Is there a relationship between the copper-to-oxidizer ratio and the temperature in copper washing operations?
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Could that expert tell me about the relationship between copper ratio and the temperature of the reducer? This post was last edited by jindin312 on 2009-4-1 at 18:08.]
If the reduction temperature of the copper melt is too low or too high, the specific gravity of copper will decrease. If the reduction temperature is too low, the reaction rate between carbon monoxide and copper ions in higher oxidation states slows down ； If the reduction temperature is too high, carbon monoxide is released from the copper melt prematurely, reducing the degree of reduction of the copper melt. A high reduction temperature increases the copper ratio. The high reduction temperature enhances the reduction of carbon monoxide in the copper melt, thereby increasing the copper content. Therefore, during the copper washing process, the reduction temperature must be kept within a certain range! This post was last edited by anship1984 on 2009-4-1 15:01]
Thank you. I also want to ask: is it common to adjust the copper ratio during production by regulating the temperature of the reducer? Can increasing the temperature of the reducer improve the copper ratio?
Adjusting the reduction temperature is an important method for controlling the copper ratio. As mentioned on the second floor, either too high or too low a reduction temperature will result in a decrease in the copper ratio. Therefore, the reduction temperature needs to be kept within an appropriate range, usually between 50 and 60 degrees. Since the reduction reaction is an endothermic process, within this appropriate range, slightly increasing the reduction temperature can improve the copper ratio. However, if the temperature is raised beyond this range, carbon monoxide will be released prematurely, which in turn will lead to a decrease in the copper ratio. Thus, when using the reduction temperature to adjust the copper ratio, it is essential to keep this temperature under control.
To stabilize production, most factories use the amount of air supplied to adjust the copper ratio; the shortcut in the reducer is usually kept partially open, with the reducer being used to adjust the copper ratio only when necessary. Increasing the reducer temperature enhances the CO reduction process, which indeed can raise the copper ratio. However, the reducer temperature is generally closely related to the regenerator temperature; raising the regenerator temperature or the reflux tower temperature will intensify the CO desorption process, thereby reducing the copper ratio. Therefore, when using temperature or reducer adjustments to regulate the copper ratio, it is necessary to conduct a thorough analysis of the entire process and take all relevant factors into consideration.
I’ve learned a lot. What is the impact of setting the regenerator temperature and the upper heating temperature to the same level on the regeneration process?