Sökning: "Copper mine"

Visar resultat 1 - 5 av 38 uppsatser innehållade orden Copper mine.

  1. 1. Grundvatten i Aitiks gruvområde : En utvärdering av grundvattenkvalitet och provtagningspunkter

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Anna Bergström; [2019]
    Nyckelord :Groundwater; Copper mine; Sulphide oxidation; Groundwater management; Mine-water chemistry;

    Sammanfattning : The aim of this study was to evaluate the quality of the groundwater around the Aitik copper mine- one of Europe’s largest copper mine located 15 km outside of Gällivare, Sweden - as well the placement of the groundwater pipes around the area. The study also included a survey of what kind of terms, regarding groundwater that may become relevant in the future for an activity of Aitik’s size and type. LÄS MER

  2. 2. Genetic relationships and origin of the Ädelfors gold deposits in Southeastern Sweden

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Tobias Wiberg Steen; [2018]
    Nyckelord :Ädelfors; sulfur isotope ratio; pyrite chemistry; orogenic gold; gold; gold quartz vein; trace elements; gold mine; banded iron formation; SEM-EDS analysis; gold silver ratio; Ädelfors; svavelisotoper; pyritkemi; orogent guld; guldrik kvartsåder; guld; guldfyndighet; spårelement; bandad järnmalm; SEM-EDS analys; guld silver förhållande;

    Sammanfattning : Ädelfors is situated ca 17 km east of Vetlanda, Jönköping County, in the N-S striking Trans-scandinavian igneous belt and is a part of the NE-SW striking 1.83-1.82 Ga Oskarshamn-Jönköping belt emplaced during a continental subduction towards the Svecofennian continental margin. The continental arc hosts the 1. LÄS MER

  3. 3. The presence of REE in titanite, garnet and epidote from the Aitik mine tailings

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Rasmus Klapp; [2018]
    Nyckelord :REE; titanite; Aitik; LA-ICP-MS;

    Sammanfattning : The aim of this thesis is to investigate the rare earth element (REE) distribution within titanite, garnet and epidote from the Aitik mine tailings, the waste material of a large porphyry-copper deposit mined in northern Sweden. The mine is an open pit operation with a low grade – high tonnage ore that generates roughly 36 Mt of tailings annually. LÄS MER

  4. 4. Modeling and control of mill discharge pumps in the Aitik copper mine

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Tomas Vikner; [2018]
    Nyckelord :;

    Sammanfattning : Boliden Aitik is the largest open-pit copper mine in Sweden, and during 2017, more than 39 million tonnes of ore was processed into concentrated copper, silver and gold. The distributed control system 800xA is provided by ABB, and this is what the operators use for process monitoring and control. LÄS MER

  5. 5. Modeling and Control of Lime Addition in a Flotation Process

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Rasmus Tammia; [2017]
    Nyckelord :Automatic Control; Mineral Processing; Flotation Process; pH Control; System Identification; Modeling; Signal Processing;

    Sammanfattning : Flotation is an important and versatile mineral processing technique that is used to separate hydrophobic materials from hydrophilic. This technique makes it possible to mine complex ores that otherwise would have been regarded as uneconomic and non-beneficial. In this case flotation is used to separate copper from the unwanted gangue. LÄS MER