Question: During the wet extraction of copper, the organic phase of Lix984 turns gray in color, making phase separation difficult. What is the saturation capacity for laboratory experiments...
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Question: During the wet extraction of copper, the organic phase turns gray in color and phase separation becomes difficult. The saturation capacity in laboratory experiments is around 4.2 g/L, but in industrial systems, even an leachate concentration of 2 g/L cannot be fully extracted. What could be the reason for this?
What is the oil-to-water ratio, and what is the acidity of the material? How severe is the acid reflux? What is the percentage of extractant in the organic phase? What kind of material is it? What temperature for the material? Size of the extraction tank? How high is the concentration of anti-liquid metal? What are the impurities present in high-concentration liquid feed? What is the temperature for anti-liquid?
Too complicated and too deep, bird! ~~~
Oxide ore, containing copper, magnesium, iron, and manganese; extractant concentration is around 8% (V/V), acid resistance level is 160 g/L; other details are currently unknown
It’s probably not a problem with iron or manganese; the color is incorrect. It could be that the solid content is too high, causing the color to turn gray. The factory lacks the necessary equipment, so many things cannot be tested. Therefore, I would like to ask experienced colleagues if they have encountered this kind of problem before
Compared to the extraction section, are the PLS components and pH easier to explain? Was the composition of the organic phase analyzed? If so, it might be possible to find the reason for the grayish color. Has emulsification or any other phenomenon that affects phase separation occurred?
Has the content of the magazine increased, and has the third phase increased as well? Has the organic phase been treated?
The organic phase may have degraded after being used for a long time; it needs to be regenerated. Alternatively, impurities in the organic phase could make phase separation difficult. The presence of trivalent iron ions in the leachate may cause emulsification. Is the extractant 984 or 5640?
Both the difficulty in phase separation and the issue with extraction efficiency may be related to these two reasons: 1. poor quality of the organic phase, which requires clay treatment; 2. excessive impurities in the feed solution, possibly including silicon and other substances. Specifically, more data may be needed for analysis
The graying is probably due to a manganese issue; we’ve encountered that as well. I’m not sure how things are going for you – have you managed to solve it?
984 is a compound of oxime aldehydes and oximes, suitable for copper-containing complex solutions; it offers balanced extraction and back-extraction properties. 902 consists of a single aldehyde oxime and is suitable for simpler solutions, with strong extraction capacity but weaker back-extraction capacity. I am the sales manager at Zhengzhou Deyuan Copper Extractant Manufacturer; my contact number is 15738851617, Zhang Xiang