Sökning: "magnesiumoxid"

Hittade 5 uppsatser innehållade ordet magnesiumoxid.

  1. 1. Effect of iron redox state on crystallization behaviour of Fayalite slags

    Master-uppsats, KTH/Materialvetenskap

    Författare :Paolo Mai; [2020]
    Nyckelord :Copper smelting; Slag; Magnesium Oxide; Iron redox equilibria; Optical basicity; Raman spectroscopy.; Smältning av koppar; Slagg; Magnesiumoxid; Järnredoxjämvikt; Optisk basicitet; Ramanspektroskopi.;

    Sammanfattning : In the copper smelting processes, the viscosity of the matte and the slag is an important factor for establishing efficiency. Impurities in the concentrates affect the viscosity not only by changing the melt structure but also by promoting precipitation of solid phase which sharply rises it. LÄS MER

  3. 2. Fuktegenskaper hos magnesiumoxidskivor

    Kandidat-uppsats, Lunds universitet/LTH Ingenjörshögskolan vid Campus Helsingborg

    Författare :Aleksandra Talevska; Omar Fakhro; [2016]
    Nyckelord :magnesiumoxidskiva; magnesiumoxid; magnesiumklorid; fukt; fuktegenskaper; magnesiumcement; magnesia; sorelcement; sorptionsisoterm; diffusionskoefficient; Technology and Engineering;

    Sammanfattning : This paper consists of a literature study and laboratory experiments of magnesium oxide boards, from Swedish suppliers, that is a part of a larger research project. Lately the boards have become known for the way they absorb moisture which has led to damage on adjacent materials. The boards are inorganic and are marketed as moisture proof. LÄS MER

  4. 3. Syrgasdelignifiering av magnesiumbaserad sulfitmassa med magnesiumbaserad alkali

    Kandidat-uppsats, Avdelningen för kemiteknik

    Författare :Johan Johansson; [2014]
    Nyckelord :Oxygendelignification; acid sulfite pulp; magnesium oxide; Syrgasdelignifiering; sulfitmassa; magnesiumoxid;

    Sammanfattning : Syftet med arbetet var att undersöka hur olika reaktionsbetingelser skulle påverka syrgasdelignifieringen av en sur sulfitmassa. De betingelser som undersöktes var utbyte, slut-pH, viskositet och kappatal. Massan som användes kom från Nordic Paper Seffle och alkalit som användes var magnesiumoxid. LÄS MER

  5. 4. Fuktrörelser i oorganiska våtrums- och vindskyddsskivor

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Avdelningen för Byggnadsmaterial

    Författare :Anton Persson; Daniel Pehrsson; [2013]
    Nyckelord :Våtrumsskivor; vindskyddsskivor; fuktrörelse; oorganiska byggskivor; välvning; svällning; saltlösning; klimatbox; fibercement; fibergips; våtrumsgips; magnesiumoxid; Wet room boards; wind break boards; moisture movement; inorganic construction boards; warping; swelling; salt solution; climate box; cement-bonded particle board; fiber gypsum; wet room gypsum; magnesium oxide.; Technology and Engineering;

    Sammanfattning : Moisture documentation for many modern building boards are currently inadequate, which creates difficulties in planning constructions. One of the problems is when the board is being exposed to large variations of the relative humidity of its surroundings. LÄS MER

  7. 5. Magnesium chloride in dry cow silage to prevent hypocalcaemia

    Master-uppsats, SLU/Dept. of Animal Nutrition and Management

    Författare :Mikaela Jardstedt; [2011]
    Nyckelord :dairy cow; parturient paresis; hypomagnesaemia; metabolic alkalosis; dietary cation anion difference;

    Sammanfattning : Milk fever, or parturient paresis, is the second most common disease in Swedish dairy cows. The disorder is associated with the onset of lactation when some cows are unable to meet the metabolic demands of calcium to support milk production and therefore develop a state of hypocalcaemia. LÄS MER