Comments on: Cool Startup Story http://chicagoboyz.net/archives/7143.html Some Chicago Boyz know each other from student days at the University of Chicago. Others are Chicago boys in spirit. The blog name is also intended as a good-humored gesture of admiration for distinguished Chicago boys including those pictured above. Fri, 25 May 2012 22:07:33 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: Conservative Mutant http://chicagoboyz.net/archives/7143.html/comment-page-1#comment-318246 Conservative Mutant Wed, 20 May 2009 03:10:31 +0000 http://chicagoboyz.net/?p=7143#comment-318246 Not exactly. Edison was trying to revive the iron industry in the Eastern states, which grew up in part around low-grade magnetite deposits. He eventually solved the magnetic separation and briquetting problems, but was unable to make it cost-competitive with ore from the deposits coming online from the Mesabi. Taconite itself is a substitute for that high-grade ore, so it's not implausible that they'll be able to make this work. They're also going to be reclaiming exposed tailings piles, which are probably cheaper to mine than the deposits Edison had to work with. Not exactly. Edison was trying to revive the iron industry in the Eastern states, which grew up in part around low-grade magnetite deposits. He eventually solved the magnetic separation and briquetting problems, but was unable to make it cost-competitive with ore from the deposits coming online from the Mesabi.

Taconite itself is a substitute for that high-grade ore, so it’s not implausible that they’ll be able to make this work. They’re also going to be reclaiming exposed tailings piles, which are probably cheaper to mine than the deposits Edison had to work with.

]]> By: Whitehall http://chicagoboyz.net/archives/7143.html/comment-page-1#comment-317892 Whitehall Mon, 18 May 2009 21:33:07 +0000 http://chicagoboyz.net/?p=7143#comment-317892 Edison went broke trying to develop a commercial process to separate magnetite from dross in taconite. Edison went broke trying to develop a commercial process to separate magnetite from dross in taconite.

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