Definition of calcination in US English:



  • See calcine

    • ‘Carbonized palm and carbonized hair are made by means of calcination in a sealed refractory vessel.’
    • ‘The high degree of calcination of the bone ashes in both kitchens and the heat-altered hearth slabs give evidence of high temperatures, implying a good supply of oxygen.’
    • ‘Oxidative calcination is commonly used to convert metal sulfide ores to oxides in the first step of recovering such metals as zinc, lead, and copper.’
    • ‘Nitrogen was determined by thermal conductivity after combustion and P, K, Ca, Mg, by a sequential spectrometer ICP after digestion by fluoridric acid and double calcinations.’
    • ‘Reductive calcination, or smelting, is a process of heating ores to a high temperatures in the presence of a reducing agent such as carbon, and a fluxing agent to remove the accompanying clay and sand (gangue).’
    • ‘For example, the calcination of metals in sealed containers demonstrated that no change in mass occurred.’
    • ‘In the case of certain ores containing relatively inactive metals such as mercury, separation can be achieved by heating the ore in air, i.e., by oxidative calcination (also known as roasting).’
    • ‘It was assumed that metals give out phlogiston during calcination.’
    • ‘Indians were masters of calcination, distillation, sublimation and preparation of metallic salts, compounds and alloys.’