After the ore has been sorted by an economical and rational beneficiation process, its main useful components are enriched and become concentrates, which are the final products of the concentrator. The content of the main useful components in the concentrate is called the concentrate grade. Some concentrate grade in weight percent (e.g., copper, copper, zinc, etc.) that the ratio of some (such as gold ore in g / t) are expressed by weight. It is an indicator of the quality of the concentrate and a parameter for the process of the beneficiation process.
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