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Changes in phosphorite composition and properties during mechanical activationPetkova, Vilma; Tõnsuaadu, Kaia; Kaljuvee, Tiit; Traksmaa, RainerThe Third International Conference on the Valorization of Phosphates and Phosphorus Compounds : COVA Phos 3 : Marrakech, Morocco, March 18th-20th, 2009 : abstracts2009 / p. 186-188

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book article

Changes in phosphorite composition and properties during mechanical activationTõnsuaadu, Kaia; Kaljuvee, Tiit; Petkova, Vilma; Traksmaa, Rainer; Kirsimäe, KalleResearchers' Network on Phosphates : The Third International Conference on the Valorization of Phosphates and Phosphorus Compounds : COVAPHOS III : Marrakech, Morocco, March 18th-20th, 2009 : proceedings2009 / p. 15-21

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book article

Changes in the thermal behaviour of phosphorite sample from Toolse deposit (Estonia) along the drill-coreKaljuvee, Tiit; Tõnsuaadu, Kaia; Kallaste, Toivo; Hints, Rutt; Kivimäe, Eliise-Koidula; Petkova, Vilma; Trikkel, Andres7th Central and Eastern European Conference on Thermal Analysis and Calorimetry (CEEC-TAC7) : book of abstracts2023 / p. 69

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book article

Comparative study of the thermal behavior of mechanoactivated natural carbonate substituted apatites from Africa (Tunisia), Europe (Bulgaria, Estonia), and Asia (Uzbekistan)Petkova, Vilma; Kaljuvee, Tiit; Tõnsuaadu, Kaia; Serafimova, E.; Dombalova, I.; Pelovski, Y.ESTAC10 : 10th European Symposium on Thermal Analysis and Calorimetry : August 22-27, 2010, Rotterdam, The Netherland : abstract book2010 / p. 189

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book article

Impact of high energy milled activation on the thermal properties of Bulgarian and Estonian natural apatitesPetkova, Vilma; Kostova, Bilyana; Serafimova, Ekaterina; Kaljuvee, Tiit; Tõnsuaadu, Kaia; Pelovski, Yoncho2nd Journal of Thermal Analysis and Calorimetry Conference, Budapest, June 18–21, 2019 : book of abstracts2019 / p. 480-481 https://jtac-jtacc.akcongress.com/

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journal article

Impact of mechanical activation on physical and chemical properties of phosphorite concentratesTõnsuaadu, Kaia; Kaljuvee, Tiit; Petkova, Vilma; Traksmaa, Rainer; Bender, Villem; Kirsimäe, KalleInternational journal of mineral processing2011 / p. 104-109

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book article

Influence of SiO2 on the thermal behavior of high-energy activated natural phosphoritesPetkova, Vilma; Kostova, Bilyana; Kadiyski, Milen; Kaljuvee, Tiit12th Conference on Calorimetry and Thermal Analysis of Polish Society of Calorimetry and Thermal Analysis and 5th Joint Czech-Hungarian-Polish-Slovakian Thermoanalytical Conference : Book of Abstracts2015 / 218-220

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journal article

Phase and structural investigations of the content of natural radionuclides in rock and inorganic building materialsSerafimova, Ekaterina; Petkova, Vilma; Kaljuvee, TiitIOP conference series : materials science and engineering2023 / 8 p. : ill https://doi.org/10.1088/1757-899x/1264/1/012003

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journal article

Powder XRD microstructural analysis of thermally treated synthetic fluor-hydroxylapatiteKostov-Kytin, V.V.; Petkova, Vilma; Kaljuvee, TiitBulgarian chemical communications2017 / p. 59–70 : ill http://www.bcc.bas.bg/

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book article

TG-FTIR/MS analysis of thermal and kinetic characteristics of some coal samplesKaljuvee, Tiit; Keelman, Merli; Trikkel, Andres; Petkova, VilmaICTAC 15 - 15th International Congress on Thermal Analysis and Calorimetry : August 20-24, 2012, Osaka2012 https://www.researchgate.net/publication/257616213_TG-FTIRMS_analysis_of_thermal_and_kinetic_characteristics_of_some_coal_samples

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journal article

TG-FTIR-/MS analysis of thermal and kinetic characteristics of some coal samplesKaljuvee, Tiit; Keelman, Merli; Trikkel, Andres; Petkova, VilmaJournal of thermal analysis and calorimetry2013 / p. 1063-1071 : ill

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book article

Thermal and kinetic characteristics of some oil shale samplesKaljuvee, Tiit; Kuusik, Rein, keemik; Petkova, VilmaThermophysics and mass transfer in materials science and construction2015 / p. 67-74 http://dx.doi.org/10.4028/www.scientific.net/AMR.1126.67

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book article

Thermal behaviour of Estonian phosphorites from different depositsKaljuvee, Tiit; Tõnsuaadu, Kaia; Traksmaa, Rainer; Einard, Marve; Jefimova, Jekaterina; Petkova, Vilma2nd Journal of Thermal Analysis and Calorimetry Conference, Budapest, June 18–21, 2019 : book of abstracts2019 / p. 134-135 https://jtac-jtacc.akcongress.com/

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journal article EST / journal article ENG

Thermal behaviour of Estonian phosphorites from different depositsKaljuvee, Tiit; Tõnsuaadu, Kaia; Traksmaa, Rainer; Einard, Marve; Jefimova, Jekaterina; Petkova, VilmaJournal of thermal analysis and calorimetry2020 / p. 437-449 https://doi.org/10.1007/s10973-019-09056-0 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

journal article EST / journal article ENG

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journal article

Thermochemical characterization of chicken litter and peat as a source for energy recoveryPetkova, Vilma; Serafimova, Ekaterina; Kaljuvee, Tiit; Pelovsky, YonchoJournal of thermal analysis and calorimetry2013 / p. 683-692 : ill

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journal article

Thermochemical investigations of natural phosphate with ammonium sulphate additivePetkova, Vilma; Pelovski, Y.; Dombalov, I.; Tõnsuaadu, KaiaJournal of thermal analysis and calorimetry2005 / p. 701-708

journal article

Petkova, Vilma (author)

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