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Impact Factor is a measure of the frequency with which the 'average article' in a journal has been cited in a particular year. The Journal Citation Reports (JCRŽ) impact factor, published by Thomson Scientific, is basically a ratio between citations and recent citable items published. Thus, the impact factor of a journal would be calculated by dividing the number of all current citations of source items published in the journal during the previous two years by the number of articles the journal published in those two years. By providing some qualification of the quantitative data in the JCRŽ, the impact factor is an important tool for journal evaluation.

Below are the leading refereed journals in Mineral Processing and Extractive Metallurgy, ranked by 2021 impact factor:

• Minerals Engineering: 5.479
• Mineral Processing & Extractive Metallurgy Review: 4.287
• Hydrometallurgy: 4.217
• International Journal of Minerals Metallurgy & Materials: 3.850
• Minerals: 2.818
• Minerals and Metallurgical Processing: 1.407
• Physicochemical Problems of Mineral Processing: 1.047
• Canadian Metallurgical Quarterly: 1.037

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