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converted hematite to the black magnetic oxide in malawi

Excavations at the site of Göltepe dating to the third millenium BC have yielded hematite ore nodules containing a few percent or less of cassiterite and a sequence of processed ground and separated minerals Laboratory experiments showed that reduction at temperatures as low as 700–850°C converted hematite to the black magnetic oxide which could be much more easily crushed than the hematite ore... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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