The grade of a raw ore is the basis of ore milling and ore dressing.

原 矿品位、回收率、尾矿品位三者是密切相关的。

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Ore dressing refers to the concentration of a raw ore. Dressing can separate the desired mineral from much of the associated gangue.

选矿就是精选生矿。通过选矿，有用矿物从伴随的脉石中分离出来。

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The invention relates to the field of ilmenite separation, in particular to a process for recycling ilmenite from a raw ore through magnetic separation.

本发明涉及钛铁矿选矿领域，具体涉及一种原矿磁选进行钛铁矿回收的工艺。

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The government has also decided to impose a 20% levy on raw ore exports and requires companies to start smelting all ore locally by 2014.

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At a briefing later, Goodyear said China was proving to be a strong market for iron ore, alumina and other raw materials.

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The steel mill he bought in 1989 was part of Ford's great River Rouge plant, where the father of mass-produced cars turned raw materials into vehicles on a single site -- transforming ore and rubber into finished cars (see box, p.122).

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