Abstract
Chromium ore is an important metallic raw material that is widely used in the metallurgy industry, chemical industry, and refractory. Clarifying the consumption mechanism of chromium ore is crucial for policy making, enterprise production, and commodity investment. Based on the signal decomposition tool and S-curve model, a new hybrid complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN)–S-curve model is proposed to analyze chromium ore consumption of different countries for the last 100 years. The results showed the following. (1) Per capita chromium ore consumption can be decomposed into low-frequency, medium-frequency, and high-frequency components, which contribute more than 55%, 10–30%, and less than 15%, respectively, to the volatility of the original series. These can be interpreted as economic development represented by GDP per capita, shocks induced by significant events, and normal market disequilibrium, respectively. (2) The CEEMDAN–S-curve facilitates understanding and data logic of data by linking consumption to end-use segments. (3) A new strategy is provided to analyze the consumption mechanism of other commodities for future modelers. Moreover, based on the results, a series of topics related to chromium ore consumption are discussed, such as resource recovery, environmental pollution, CO2 emissions, and consumption trends. The discussions emphasize that, to reach sustainable development goals, a series of measures should be implemented, such as developing advanced smelting technology, recycling technology, and effective enforcement measures.
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Notes
MATLAB code is available at: http://perso.ens-lyon.fr/patrick.flandrin/emd.html.
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This research is supported by grants from the geological surveying projects of China Geological Survey (Grant No. DD20190606) and Qinghai Salt Lake Industry Co., Ltd (Grant No. HE2221).
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Pan, Z., Zhang, Z. & Che, D. Exploring Chromium Ore Consumption: New Perspectives from Hybrid CEEMDAN–S-Curve Modeling. Nat Resour Res 32, 929–953 (2023). https://doi.org/10.1007/s11053-023-10176-6
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DOI: https://doi.org/10.1007/s11053-023-10176-6