Proceedings of the Estonian Academy of Sciences, Chemistry |
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Academy of Sciences accompanying minerals anions apatite apatite structure Aseri atmospheric pressure atoms binding CaCO3 calcination calcium carbonate carbonateapatite CaSO4 Chem chemical chemical kinetics Chemistry composition compounds condensed phosphates crystals decomposition defluorination degree of conversion dehydration dolomite dolomite samples Estonian Estonian Acad Estonian Academy Publishers evolved feed phosphates formation formed hardened DAp heating hydrothermal hydroxyapatite Ilmar Koppel increase intra-particle diffusion Kanazawa kinetics Knubovets Koguva Kovdor Kuusik limestone limestone and dolomite limestone samples mass loss melt Mihkel Veiderma mixture Monma monoclinic obtained orthophosphate hydrates oxovanadium(IV Pajusi parameters parent solution phase phosphate rock phosphoric acid phosphorites phosphorus pore porosity pressurized conditions Proc Pyldme ratio reaction SiO2 solid solubility sorbent sorbent particle studies sulphation sulphur Tallinn Technical University Tamsalu Tartu temperature thermal analysis Thermal transformations Thermoanalytical thermophosphate titanium titanium(III Tonsuaadu ultraphosphate University of Tartu vanadium(V Volkhov water vapour Zevenhoven