Home smelter or bloomery |
It's a rather open-ended topic, which (we imagined) is why Dianne decided the question was "How to Smelt Iron Ore in your Back Yard." It most likely wasn't that: some eighth-grader was probably looking for a general outline of smelters, blast furnaces, and the Bessemer process for World History class. But Dianne forged ahead (pun intended) and, as she generally does, pretty much made a hash of the topic. Here's what she thinks we have to do:
"Create a Smelter: The process of refining or melting iron will need some ore. The easiest way is to go look for a few rocks that are rusty looking. This is a telltale sign the rock has some iron ore in it."
Besides the obvious fact that looking for ore isn't part of "create a smelter," Dianne's clearly an idiot if she thinks that any old rusty-looking rock is iron ore. Apparently she figured that out, since she immediately said,"Either purchase iron ore or look for some outside. However, chances are these rocks have very little iron ore present in them and that is why they are sitting there and not being mined. In the past, people search for high-grade iron ore in swamp bogs."Where would one "purchase" (as an aside, we find the use of the word "purchase" to be an obvious attempt to make one's writing look more "professional," which typically fails) this iron ore? and just WTF is a "swamp bog"? Anyhow, DC-H goes on to describe a backyard smelter -- just badly enough that you'd probably kill yourself trying to build and or use one. Then comes Dianne's description of the smelting process: check out his mishmash of "information": |
"The first load of charcoal should be put into the fire at this time, then the ore and additives. Iron typically included a portion or lime. Continually adding the charcoal and keeping the fire above the required temperature is necessary. How long the fire runs depends on how much heat is achieved, the quality of ore and the quality of the smelter. The fire could run as long as one week. Since refining iron is not an exact science, it could take longer than you think."We wondered "at what time"? And just WTF does "Iron typically included a portion or lime..." mean, anyway?
We pondered whether someone would ever be able to figure out the smelting process from Christensen-Hermance's description here. We read it several times and decided first, that it's so sloppy and badly written it's small wonder that even eHow wouldn't publish it; and second, you'd be taking your life in your hands to attempt to smelt your own iron with this as a reference. We did find a better "home-brew" article on-line, complete with pretty pictures and a more detailed timeline of the processing.
¹ This website is now defunct, and archive.org's Wayback machine never made a copy of the post. Oh, well, no loss...
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DD - CHEMISTRY
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