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Copper Production as an Application of Optimization and Scheduling

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Original languageEnglish
Title of host publicationAutomaatio XXI seminaari 2015
EditorsSirkka-Liisa Jämsä-Jounela
Place of PublicationHelsinki
PublisherSuomen Automaatioseura ry
Number of pages6
ISBN (Print)978-952-5183-46-7
Publication statusPublished - 17 Mar 2015
Publication typeA4 Article in a conference publication
EventAutomaatioseminaari - , Finland
Duration: 1 Jan 1980 → …

Publication series

NameSAS julkaisusarja
PublisherFinnish Society of Automation
ISSN (Print)1455-6502
ISSN (Electronic)1455-6502


Period1/01/80 → …


Copper production in a copper smelter is a process comprised of batch and continuous production tasks. Typically, subprocesses have been operated in a locally optimal way though significant interdepencies exist. In general, copper production presents a harsh environment where production is often disturbed by unforeseen events and frequent maintenance operations. Optimization of production is further complicated by the significantly differing timescales with recycling of some materials. This work presents first the main production tasks related to copper production and then details requirements and procedures in modelling the full task with the goal of producing models suitable for a global scheduling solution. The main scheduling decision variables are detailed and a simplified example of scheduling two converters is included. The scheduling and optimization is to provide operators with advice on timings and resource use to maximize equipment use and production throughput. The solution structure may be viewed as a combination of scheduling and predictive control techniques. By considering material inputs over the complete production cycle, the optimization is to provide improvements especially in impurity control.


  • copper smelter, modelling, scheduling, optimization

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