In tantalum-niobium extraction, the control of extraction tank equipment operating parameters directly impacts the separation of tantalum and niobium. Flow rate, temperature, and pressure are key parameters, as detailed below:

Flow rate is the primary factor influencing separation efficiency. The filtrate flow rate entering the extraction tank must be precisely controlled. Excessive flow rates result in insufficient contact time between the extractant and the filtrate, reducing product purity; excessively low flow rates extend the extraction cycle, reducing efficiency and increasing costs. Flow rate distribution between extraction tanks is also crucial and should be appropriately adjusted based on the solubility and efficiency of tantalum and niobium at different extraction stages.

Temperature significantly impacts tantalum-niobium separation. It affects the solubility and reaction rate of the extractant and tantalum-niobium compound. An appropriate temperature accelerates the reaction, improves efficiency, and ensures sufficient transfer of niobium and tantalum into the organic phase. However, excessively high temperatures may cause the extractant to decompose or volatilize, triggering side reactions; excessively low temperatures slow the reaction rate and result in incomplete extraction. Therefore, precise control of the temperature within the extraction tank is crucial.

Pressure is also crucial. Appropriate pressure increases contact area, facilitates mass transfer, and improves extraction efficiency. However, excessively high pressure can increase equipment load, affect sealing, and even cause safety incidents; while excessively low pressure can hinder the effective promotion effect. Therefore, precise adjustment and stable pressure are crucial.

To ensure precise parameter control and stable operation, the extraction equipment utilizes an advanced automated control system. This system is equipped with high-precision sensors that monitor parameters and provide real-time data feedback. The central control unit automatically adjusts the feed pump speed, heating device power, and pressure regulating valve opening within preset ranges. It also provides fault diagnosis and alarm functions to ensure stable extraction operation.