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A System Dynamics Assessment of the Supply of Molybdenum and Rhenium Used for Super-alloys and Specialty Steels, Using the WORLD6 Model

Author

Listed:
  • Harald Ulrik Sverdrup

    (University of Iceland)

  • Anna Hulda Olafsdottir

    (University of Iceland)

  • Kristin Vala Ragnarsdottir

    (University of Iceland)

  • Deniz Koca

    (Lund University)

Abstract

The extraction, supply, market price and recycling of the metals molybdenum and rhenium were modelled using an integrated system dynamics model. The resource estimates made here resulted in significantly larger estimates than earlier studies for molybdenum. Present molybdenum resources are about 75–80 million ton and about 7 million ton has been mined to date. The ultimately recoverable resources (URR) for molybdenum are about 65 million in primary resources and about 45 million ton in secondary sources, a total of about 111 million ton, and after considering technical extractability, evaluating several hundred different geological deposits, the extractable amount is about 90 million ton. For rhenium, URR is about 21,000 ton contained in mostly in molybdenum and copper, but some come from nickel, wolfram and platinum group metal ores. The model outputs show that molybdenum and rhenium are finite resources, and that they may become exhausted unless the degree of recycling will be significantly improved. Peak production is estimated to take place in 2060 for molybdenum and rhenium, with peak in stocks-in-use around 2090. The molybdenum and rhenium recycling rates are generally low. Both market intervention mechanisms and governance incentives should be used to increase recycling. The metal extraction and ore grades were modelled with good success when tested against observed data. The model predicts a significant decline in molybdenum supply after 2100 under the present demand combined with the present regime of recycling. The supply situation for rhenium is dependent on the situation applicable for molybdenum ore availability and rhenium recycling rate.

Suggested Citation

  • Harald Ulrik Sverdrup & Anna Hulda Olafsdottir & Kristin Vala Ragnarsdottir & Deniz Koca, 2018. "A System Dynamics Assessment of the Supply of Molybdenum and Rhenium Used for Super-alloys and Specialty Steels, Using the WORLD6 Model," Biophysical Economics and Resource Quality, Springer, vol. 3(3), pages 1-43, September.
    • Handle: RePEc:spr:bioerq:v:3:y:2018:i:3:d:10.1007_s41247-018-0040-9
    DOI: 10.1007/s41247-018-0040-9
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    References listed on IDEAS

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    1. Anna Hulda Olafsdottir & Harald Ulrik Sverdrup, 2018. "Modelling Global Mining, Secondary Extraction, Supply, Stocks-in-Society, Recycling, Market Price and Resources, Using the WORLD6 Model; Tin," Biophysical Economics and Resource Quality, Springer, vol. 3(3), pages 1-17, September.
    2. Nieć, Marek & Galos, Krzysztof & Szamałek, Krzysztof, 2014. "Main challenges of mineral resources policy of Poland," Resources Policy, Elsevier, vol. 42(C), pages 93-103.
    3. Tilton, John E. & Lagos, Gustavo, 2007. "Assessing the long-run availability of copper," Resources Policy, Elsevier, vol. 32(1-2), pages 19-23.
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    Cited by:

    1. Harald Ulrik Sverdrup & Antoniy Elias Sverdrup, 2024. "On the Supply Dynamics of Scandium, Global Resources, Production, Oxide and Metal Price, a Prospective Modelling Study Using WORLD7," Biophysical Economics and Resource Quality, Springer, vol. 9(2), pages 1-22, June.
    2. Werner, Tim T. & Mudd, Gavin M. & Jowitt, Simon M. & Huston, David, 2023. "Rhenium mineral resources: A global assessment," Resources Policy, Elsevier, vol. 82(C).
    3. Harald Ulrik Sverdrup & Anna Hulda Olafsdottir, 2020. "Conceptualization and parameterization of the market price mechanism in the WORLD6 model for metals, materials, and fossil fuels," Mineral Economics, Springer;Raw Materials Group (RMG);Luleå University of Technology, vol. 33(3), pages 285-310, October.
    4. Olafsdottir, Anna Hulda & Sverdrup, Harald Ulrik, 2019. "Defining a Conceptual Model for Market Mechanisms in Food Supply Chains, and Parameterizing Price Functions for Coffee, Wheat, Corn, Soybeans and Beef," International Journal on Food System Dynamics, International Center for Management, Communication, and Research, vol. 10(02), April.
    5. Anna Hulda Olafsdottir & Harald Ulrik Sverdrup, 2020. "Assessing the Past and Future Sustainability of Global Helium Resources, Extraction, Supply and Use, Using the Integrated Assessment Model WORLD7," Biophysical Economics and Resource Quality, Springer, vol. 5(2), pages 1-18, June.
    6. Harald Ulrik Sverdrup & Anna Hulda Olafsdottir, 2018. "A System Dynamics Model Assessment of the Supply of Niobium and Tantalum Using the WORLD6 Model," Biophysical Economics and Resource Quality, Springer, vol. 3(2), pages 1-35, June.

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