Essays about: "processteknik"

Showing result 11 - 15 of 28 essays containing the word processteknik.

  1. 11. Survey of sulphates in process water of LKAB - Kiruna operation

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik; Luleå tekniska universitet/Mineralteknik och metallurgi

    Author : Ebba Videll; [2019]
    Keywords : Sulphate; iron ore mine; process water; anhydrite; laboratory grinding; equilibrium calculations; mass balance;

    Abstract : Sulphate-rich wastewater is an increasing concern for industries as LKAB. The water chemistry of the LKAB Kiruna water system is characterized by high alkalinity, high pH (pH 7.5-9.0) and high concentrations of chemical species and soluble minerals. READ MORE

  3. 12. Alkali Circulation in the Blast Furnace - Process Correlations and Counter Measures

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Joel Carlsson; [2018]
    Keywords : Alkali; coke; experimental blast furnace; top gas; mass spectrometry; multivariate analysis;

    Abstract : In blast furnace ironmaking one major challenge is to control and measure the alkalis circulating and accumulating in the blast furnace (BF). Alkali enter the BF with the primary raw material and will form a cycle where it is first reduced to metal at the lower parts forming gas. READ MORE

  4. 13. Electrolysis of chalcopyrite

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Regina Nemeth; [2018]
    Keywords : ;

    Abstract : Copper is one of the most important metals globally, due to its wide application range and excellent chemical properties. Today it is commonly produced from chalcopyrite concentrates by the pyrometallurgical route with high emissions of greenhouse gasses. READ MORE

  5. 14. Mixed Acid Pickling of Austenitic Stainless Steel - High acid concentration in standard stainless steel processing : Effect of temperature on pickling efficiency of austenitic stainless steel

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Johanna Mörtberg; [2018]
    Keywords : ;

    Abstract : .... READ MORE

  6. 15. Study of leaching behavior of tin in Zinc-clinker and Mixed Oxide

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Olle Bertilsson; [2018]
    Keywords : Leaching; tin; Sn; Zn-clinker; Mixed Oxide; sulfuric acid; Zn; residue; H2SO4; Boliden;

    Abstract : Due to the increasing usage of Sn in different electronics, such as solders and in touchscreens, together with Boliden Rönnskärs increased intake of electronic waste as a secondaryraw material, a Zn-containing product called Zn-clinker has increasing amounts of Sn. TheZn-clinker is shipped to Boliden Zn-smelter in Odda, where the Zn-clinker is mixed in withcalcine (roasted concentrate) and leached in several steps. READ MORE