Sökning: "Aitik ore"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden Aitik ore.

  1. 1. Investigating the effect of grinding method on ore beneficiation behaviour

    Master-uppsats, Luleå tekniska universitet/Mineralteknik och metallurgi

    Författare :Mellisa Tanaka Mundida; [2023]
    Nyckelord :flotation; grinding; liberation; chalcopyrite; beneficiation; grinding method; selectivity index; VRM; Aitik ore; rodmill; particle shape;

    Sammanfattning : Commodity projection studies anticipate an exponential increase in copper demand and decreasein mill grade of deposits currently exploited globally. Most of this demand is driven by theindispensable use of copper in electrification and currently, the growing demand in the contextof the green transition. LÄS MER

  3. 2. Comparison of Level Control Strategies for a Flotation Series in the Mining Industry

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Frida Norlund; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : Separating valuable minerals from waste rock is an important step in the production of metals. This is for copper ore done through a process called flotation. A flotation series consists of tank cells in series where the minerals are collected in a froth on top of the cells. LÄS MER

  4. 3. A bonded discrete element approach to simulate loading with hydraulic mining excavators

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Carl Andersson; [2021]
    Nyckelord :DEM; bonded DE; granular material; hydraulic excavator; wear; Archard s wear law; LS-DYNA; simulation;

    Sammanfattning : When operating hydraulic mining excavators the loading equipment is exposed to harsh conditions which lead to extensive wear of the equipment, especially the bucket and bucket teeth. Simulations are used to better understand the wear development and to evaluate new methods to operate excavators more efficiently. LÄS MER

  5. 4. A Geometallurgical Approach Towards the Correlation Between Rock Type Mineralogy and Grindability: A case study in Aitik mine, Sweden

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

    Författare :Raoul Schmitt; [2021]
    Nyckelord :Geometallurgy; autogenous grinding; process mineralogy; grindability test; abrasion breakage; automated mineralogy;

    Sammanfattning : Aitik is a large copper porphyry type deposit located in northern Sweden, currently exploited at an annual rate of approximately 45Mt. The ore's exceptionally low head grade of 0.22 % Cu and varying degrees of hardness across the entire deposit pose challenges to the two fully autogenous grinding lines, each of which comprises a 22. LÄS MER

  7. 5. Safety Education for Future Mining

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för ekonomi, teknik och samhälle

    Författare :Hanna Jonsson; [2019]
    Nyckelord :education material; mining industry; training methods; utbildningsmaterial; gruvindustrin; utbildningsmetoder;

    Sammanfattning : The work environment in mines have changed during the last decades. Compared to when birds were used to examine the air quality in coal mines, today’s mines strive for a zero-entry production. Which means that the persons who works at the mining company are stationed over ground - instead of under it. LÄS MER