A kind of processing method of organic extractant
An organic extraction agent and treatment method technology, applied in the field of metallurgy, can solve the problems of reducing the extraction capacity of the extraction agent, poor extraction phase separation effect, and extraction "poisoning", and achieve the effect of improving the extraction and separation capacity, easy operation, and simple equipment
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Embodiment 1
[0022] Put 500L of P507 extraction agent with a concentration of 1.5mol / L into a 1000L reaction kettle, add 50L of oxalic acid solution with a concentration of 0.8mol / L to it, stir for 5min, clarify and separate, drain the water phase and add OH - The mixed solution of sodium carbonate and sodium bicarbonate with a concentration of 1.8mol / L (weight ratio is 3:1) is 200L, after stirring for 10min, the layers are clarified, and the aqueous phase is drained, and H + 100 L of hydrochloric acid solution with a concentration of 5.0 mol / L, stirred for 10 minutes, clarified and separated, added 50 L of pure water after draining the water phase, and stirred for 10 minutes, clarified and separated, and the remaining organic phase after draining the water phase was the regenerated P507.
Embodiment 2
[0024] Put 500L of naphthenic acid extractant with a concentration of 0.5mol / L into a 1000L reaction kettle, add 100L of oxalic acid solution with a concentration of 0.2mol / L to it, stir for 10min, clarify and separate layers, drain the water phase and add OH - 200 L of sodium carbonate solution with a concentration of 1.5 mol / L, after stirring for 10 min, clarified and separated, drained the water phase and added H + 80L of hydrochloric acid solution with a concentration of 3.0mol / L, after stirring for 10min, clarification and stratification, after draining the water phase, add 100L of pure water, after stirring for 5min, clarification and stratification, the remaining organic phase after draining the water phase is the regenerated naphthenic acid .
Embodiment 3
[0026] Put 500L of N235 extraction agent with a concentration of 0.3mol / L into a 1000L reaction kettle, add 100L of oxalic acid solution with a concentration of 1.0mol / L to it, stir for 8 minutes, clarify and separate, drain the water phase and add OH - 100L of sodium bicarbonate solution with a concentration of 0.5mol / L, after stirring for 8min, clarified and separated, drained the water phase and added H + 50 L of hydrochloric acid solution with a concentration of 5.0 mol / L, stirred for 10 minutes, clarified and stratified, added 200 L of pure water after draining the water phase, and stirred for 15 min, clarified and stratified, and the remaining organic phase after draining the water phase was regenerated N235.
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