
The Largest Ships in the Huge Iron-Ore Trade | Wolf Street
7/28/2018· High-grade iron ores command a large premium over low-grade ores, but often the latter are so cheap as to make them economically attractive despite the costs of beneficiation. However, beneficiation of iron ores under 30% Fe content is usually considered uneconomical, no matter how cheap the ore itself, the energy used in the beneficiation, and
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