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Smelting Cornish Tin 

Polhigey
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A short video showing Cornish Cassiterite (Tin ore) being smelted into Tin metal and made into 250g ingots.
The ore was mined and processed in Cornwall by us and then we smelted it at Perranporth in October 2013
We produced just over 4.5 kilos of Tin metal during this days smelting which we will turn into other items in due course for our private collections

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29 авг 2024

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Комментарии : 23   
@grahamcoad
@grahamcoad 11 лет назад
Excellent! Interesting hobby indeed.
@HighlanderNorth1
@HighlanderNorth1 3 года назад
🤔This is very interesting, but I've got a few questions, if you've got the time to answer them: What's the tin concentration in that finely crushed cassiterite ore powder at the beginning? Did you have to mix carbon/charcoal with the cassiterite in the smelting process to separate the unwanted byproduct minerals from the pure tin? Or was it just a matter of just getting it really hot, past the melting point of tin? What do you personally use the tin for, do you refine it as a hobby, or do you mine it, smelt it and sell it on the open market? I've bought a pound of 99.9% tin from Rotometals about 3 years ago to add to my element collection, and to experiment with casting it. But I'd be FAR more interested in buying a couple/few pounds of tin from someone who personally mined and smelted it from a historical mine. So, if you're selling it, let me know! Thanks 👍
@mdxndy
@mdxndy Год назад
Black Tin ore SnO2 you see at the beginning would be about 65-72% Sn. Yes you have to crush the charcoal or coal (carbon) and mix together with the tin ore for smelting small scale
@chrisackerley1842
@chrisackerley1842 5 лет назад
Apart from being an interesting piece of history, does anyone use the tin you produce? Also, who refines the Casserite into the final powdered form that you smelt? Finally, how much Casserite ore is left in Cornwall? If economic conditions were right, is there enough ore left to support a modern mining industry? Please advise.
@Polhigey
@Polhigey 5 лет назад
We produce the white tin for our own collections, we process the ore ourselves and there is still plenty of tin left in Cornwall to mine. Current reopening commercially Redruth and possibly Callington.
@canadiangemstones7636
@canadiangemstones7636 3 года назад
Cool work! Do you ever sell ingots of Cornish tin, or cassiterite?
@mutar6014
@mutar6014 7 лет назад
Great
@ricardoponce8570
@ricardoponce8570 6 лет назад
Hello, congratulations for the video, it is very interesting and with good content. One question, how long does the melting process last? (From ore to tin)
@Polhigey
@Polhigey 6 лет назад
For a Kilo of ore about 40 minutes
@ricardoponce8570
@ricardoponce8570 6 лет назад
Polhigey muchas por tu valiosa respuesta, esperó sigan los éxitos !
@marvinrichard4839
@marvinrichard4839 6 лет назад
Please what percentage of purity is the Tin from your first extraction. Secondly, if I wish to purify it, can you tell the process or otherwise demonstrate it, thanks and happy new year
@ilochonwuemeka3441
@ilochonwuemeka3441 4 года назад
you can get up to 96% or more at first smelting to purify you use liquation and polling method
@ojja3
@ojja3 5 лет назад
Hello, do you use fluxes (soda, borax, limestone, quartz), or just carbon( charcoal?), and whats the carbon source/ore ratio? Thank you for your reply.
@Polhigey
@Polhigey 5 лет назад
Never Soda or Borax as that will eat the crucibles. Very occasionally crushed limestone depending on the nature of the material being smelted. Generally use high grade crushed anthracite at about 12% ie 120g to 1 k of concentrate, or Charcoal. No Iron pyrite in charcoal so less fizzy smelt generally!
@mdxndy
@mdxndy Год назад
Thanks for the video. I wish to smelt on a very small scale like u. May I have your email? How do u design or buy a small “furnace” that we saw in the video? Thanks so much. This is my new hobby.
@creative8352
@creative8352 6 лет назад
I have a metallic compound having 54% tin and 40% lead and 6% other metals ...... Which method should I use to refine tin from it
@Polhigey
@Polhigey 6 лет назад
Hi, have no idea, I only smelt , not refine metals
@ilochonwuemeka3441
@ilochonwuemeka3441 4 года назад
Just heat the material to the melting point of Tin(232 degree centigrade) because it's melting point is lower than that of lead, I believe you will be able to get the tin out.
@rodhughes9465
@rodhughes9465 6 лет назад
Would you be willing to demonstrate on film please?
@Polhigey
@Polhigey 6 лет назад
Tell me what it involves and will discuss with my partner in arms as we do it in his workshop
@rodhughes9465
@rodhughes9465 6 лет назад
Hi, it will be part of a film smelting copper and tin and casting in bronze. I would like to show it being done using ancient techniques.
@Polhigey
@Polhigey 6 лет назад
Hi Rod, not for us, thanks Good luck with your project
@phillipsjames3892
@phillipsjames3892 6 лет назад
might know a guy who can help
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