Search for dissertations about: "matte"

Showing result 1 - 5 of 12 swedish dissertations containing the word matte.

  2. 1. Slag Cleaning of a Reduced Iron Silicate Slag by Settling : Influence of Process Parameters and Slag Modification on Copper Content

    Author : Jenny Isaksson; Caisa Samuelsson; Andreas Lennartsson; Anton Andersson; Pekka Taskinen; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Copper losses; matte; speiss; fayalite slag; temperature; settling time; solid phases; industrial trial; CaO modification; Process Metallurgy; Processmetallurgi;

    Abstract : During the pyrometallurgical extraction of copper, a significant part of the copper is lost with discard slag, which decreases profits, overall copper recovery, and efficiency of raw material usage. Smelting furnace slag usually has a copper content that is close to or higher than that of copper ores. READ MORE

  4. 2. Leaching of water-granulated iron silicate slags and their compounds : A study of synthetic and industrial slag systems

    Author : Jakob Kero Andertun; Fredrik Engström; Caisa Samuelsson; Pasi Peltola; Bart Blanpain; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Process Metallurgy; Processmetallurgi;

    Abstract : Copper smelter slag is a residue product of the pyrometallurgical extraction of copper. Due to its physical properties, the iron silicate type of copper smelter slag has many possible application areas, e.g., different aggregates and abrasives. READ MORE

  5. 3. Revision Hip Arthroplasty : Impaction Bone Grafting and Low-Dose CT-Based Measurements of Bone Density and Migration

    Author : Hampus Stigbrand; Gösta Ullmark; Nils Hailer; Per Wretenberg; Uppsala universitet; []
    Keywords : Revision Hip Arthroplasty; Bone Grafting; Computed Tomography; Bone Mineral Density; CTMA; Orthopaedics; Ortopedi;

    Abstract : Aseptic loosening of total hip replacements is always associated with bone defects, either due to removal of the existing implant or osteolysis. Bone defects can be handled during revision surgery with impaction bone grafting (IBG). READ MORE

  6. 4. Influence of postoperative treatment, surface treatment and stem design on the outcome of primary total hip arthroplasty

    Author : Truike Thien; Göteborgs universitet; []
    Keywords : Primary total hip arthroplasty; anteverted stem; stem design; cemented and cementless fixation; radiostereometry; bone mineral density; clinical outcome;

    Abstract : Aims: The aim of this study was to investigate the influence of postoperative treatment, surface treatment and stem design on the outcome of primary Total Hip Arthroplasty. The main intention was to study anteverted femoral stems. READ MORE

  7. 5. Studies on the complications and prediction of mortality after hip fracture surgery

    Author : Carl Mellner; Sebastian Mukka; Per Morberg; Olof Sköldenberg; Björn Knutsson; Lasse Lapidus; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hip fracture; femoral neck fracture; treatment; total hip arthroplasty; hemiarthroplasty; internal fixation; outcome; infection; periprosthetic joint infection; mortality;

    Abstract : An elderly patient who sustains a hip fracture has increased morbidity and mortality. Scandinavia presents the highest incidence annually of hip fractures worldwide. Femoral neck fracture (FNF) of the hip accounts for 50% of all hip fractures in geriatric patients. READ MORE