How to solve the emulsification phenomenon of 272 under high iron ion concentration?
Iron ion is a very common interference factor in the extraction of nickel and cobalt. When the concentration of iron ions is too high, it is easy to cause emulsification, as shown in the figure, which will destroy the work of the entire extraction system. In this case, a series of measures should be taken to solve the emulsification problem and maintain the normal operation of the extraction system.
First, you want to reduce the iron concentration as much as possible. Before extraction, the iron-containing raw materials can be treated through reverse osmosis, ion exchange and other methods to effectively reduce the concentration of iron ions in them.
Secondly, extractants with stronger iron resistance can be selected. For example, DZ272 extractant, its highest iron resistance concentration can reach 3.5g/L, which can better cope with the concentration of high iron ion. To some extent, the possibility of emulsification in extraction system can be reduced by selecting extractants with strong iron resistance.
In addition, the separation steps of iron removal should be strictly controlled in the extraction process of nickel and cobalt, and the phase containing iron and nickel and cobalt can be effectively separated through reasonable extraction process design to reduce the interference of iron ions on the extraction system. In the process of separation, attention should be paid to controlling factors such as phase proportion and temperature to avoid emulsification caused by too high temperature and too large interfacial tension.
Finally, during the operation, the concentration of iron ion in the extraction system is timely detected and controlled. When the concentration of iron ion exceeds a certain limit, it should be stopped in time to avoid further emulsification and damage to production benefits and product quality.
In order to avoid the emulsification of the extraction system due to the high concentration of iron ions in the nickel-cobalt extraction process, please choose DZ272 efficient nickel-cobalt extraction agent, because the biggest advantage of DZ272 extraction agent is strong iron resistance, which can reach the maximum concentration of 3.5g/L iron ions. Under this concentration, the extraction agent will not be emulsified without phase separation.
Our factory index is the maximum 3.0g/L, while the 272 of our competitor can only reach the concentration of 1.6g/L iron ion. Beyond this concentration, the extractant will be emulsified and phase separated, which can be clearly seen through a simple comparative test.
We special to focus on R&D metal extraction reagents, our major products as below:
- DZ988N/DZ973N/DZ902 copper solvent extraction reagent.
- DZ272 Nickel, cobalt, manganese, and magnesium separation extractant.
- DY319 high efficiency nickel cobalt co extraction extractant.
- DY377 efficient nickel and diamond separation extractant.
- DY366 new advanced nickel cobalt extractant.
- P204 (D2EHPA or HDEHP) extractant.
- DY301, DY302 for nuclear spent fuel recovery.
- Other extraction reagents for Vanadium extractant, Lithium extractant, Ferro extractant and rare earth extractant.