Where do everyone buy the extractants for experiments?
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I plan to carry out a wet extraction process to separate Fe, Cu, Co, Ni, etc. I would like to ask where people usually purchase small amounts of extractants for experiments. I also seek advice from experts with experience in the extraction and separation of Fe, Cu, Co, Ni, etc., regarding the extraction strategy. The concentrations in the leachate are as follows: Fe: 2 kg/m3, Mg: 0.8 kg/m3, Ca: 1.5 kg/m3, Cu: 0.8 kg/m3, Co: 0.16 kg/m3, Ni: 0.07 kg/m3, Mn: 0.012 kg/m3, Zn: 0.02 kg/m3; pH: 1.5. During the experiment, iron exists in the form of ferrous ions, and the system consists of 2 mol/l ammonium chloride
I want to first adjust the pH to around 3, then carry out aeration oxidation and heating to separate iron. Copper, cobalt, and nickel are extracted using a neutral phosphorus extractant; however, calcium, magnesium, and manganese cause interference. As someone with a background in analysis, I always prefer to precipitate these elements as sulfides. :funk:
Stores that generally sell chemical raw materials usually have extractants available. The key is to choose the right extraction method; even if the store doesn’t have the extractant you need, you can ask them to help you find it
Generally, there are agents near research institutions that specialize in selling laboratory equipment and reagents; you can contact them directly to make a purchase.
They are available for purchase at specialized chemical reagent stores.
I looked for them online, but they usually don’t supply small quantities; some do, but the prices seem quite high.
I’m not sure whether the original poster wants to pursue industrialization or analysis; if it’s industrialization, I think the level of detail is too low. If you want to do analysis, it is recommended that you post in the analysis section. I believe there will be many gains.
8# zf197398: Samples of the extractant can be requested from the manufacturer. It seems the poster is working on an experimental project at some school or research institute
Copper is extracted using LIX984N, and after pH adjustment, cobalt and nickel are extracted with CY272. How can calcium, magnesium, and manganese cause interference? Could it be that the landlord wants it to reach the level of analytically pure and chemically pure?
Many such laboratory supplies can be found at the universities in the vicinity; you can go and look for them. I also specialize in advanced analysis, and I prefer to use sulfuric acid or hydrochloric acid to separate them, or else I use some alkali