Discussion of extraction reflux liquid
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In modern extraction production, box-type extraction is generally used. In order to stabilize the ratio in the mixing chamber to 1:1, we often adjust the ratio by adding a reflux pipe. Generally, extraction is divided into extraction, washing, stripping, etc. How is our reflux pipe arranged? For example, is the reflux pipe in the extraction section water reflux or organic reflux? For example, our company uses unified water phase reflux, but I don't agree with it. I think the reflux liquid in each section is different according to the process parameters. Let's discuss it.
From the same point of view, the reflow should be determined according to the process requirements. If the phase is less, use the smaller phase for reflow. It should also be used when switching phases for continuity.
support, the reflow phase should be done based on less
The reflux in the extraction section is organic reflux, and the reflux in the stripping section is aqueous phase reflux.
The purpose of reflux is to promote mixing between phases while considering phase continuity. Sometimes, although the comparison is very large, the phase continuity state at this time is exactly what is desired, and the extraction effect is also very good, then the meaning of reflux is not great. Detailed analysis of specific issues
The purpose of reflux is to not only meet the large flow ratio extraction, but also ensure the mixing effect (the ratio of the mixing chamber to 1:1). Of course, there is less one-phase reflux. Whether it's extraction or back-extraction.
If this is the case, extraction is oil-in-water, and stripping is water-in-oil? I have just come into contact with this aspect of knowledge, and I don’t understand many things very well. I hope Haiyou can give me some guidance!
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In order to control the reflux with a small flow rate, for example, the organic phase flow is small and the water phase flow is large, then the organic phase reflux is used to facilitate control!