Separate the tin from the iron surface?
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I have a question for experts: What substances or methods can be used to separate tin from iron in order to obtain the pure metal? Be careful to control costs! Thank you!
-- I think it must also have something to do with the tin content. With different tin contents in iron, the methods must also be different. --
You just need to heat it to a temperature within the range that is higher than the melting point of tin and lower than the melting point of iron.
I hope an expert can provide a practical process! Thank you!
Is it tin on the surface of iron? It can be leached at 90 degrees using sodium hydroxide and sodium nitrate; tin is precipitated from the leachate using sodium bicarbonate, and the leachate is regenerated with lime milk before being reused for leaching. The precipitated tin is reduced and melted into tin ingots or sold directly; this is the simplest and most practical method.
It’s the tin on the surface of iron; I want to recycle it! Thank you!
I am also working on this area currently; it mainly involves surface tin plating, and there is iron and copper inside, making it difficult to distinguish them. I hope someone with more experience can offer some guidance.
Reply to 5# fchen: Hello, sir on the 5th floor. I’ve carried out this reaction, but it doesn’t proceed. What’s the reason? My QQ number is 123230885; I hope to communicate with you. Thank you!
Tin reacts with sodium hydroxide, but the reaction is relatively slow. But I don’t know about adding sodium bicarbonate to cause precipitation; I don’t think it’s necessary
When iron pieces are heated together with molten lead, tin moves into the lead. Upon electrolyzing the lead, tin ends up in the anode sludge, where it can be further refined.