Thermophosphate fertilizers from Siilinjärvi apatite

Acta Polytechnica Scandinavica, Chemical Technology Series

Volumn , Issue 239, 1996, Pages

  Veiderma, Mihkel ^a   Tônsuaadu, Kaia ^a  

^a TALLINN UNIVERSITY OF TECHNOLOGY   (Estonia)

Author keywords

Apatite; Nepheline; Shungite; Thermophosphate fertilizer

Indexed keywords

CALCINATION; CHEMICAL ANALYSIS; INFRARED SPECTROSCOPY; PHASE COMPOSITION; PHOSPHATE MINERALS; PYROLYSIS; SOLUBILITY; THERMODYNAMIC PROPERTIES; X RAY DIFFRACTION ANALYSIS;

NEPHELINE; SHUNGITE; SIILINJARVI APATITE; THERMOPHOSPHATE FERTILIZERS;

PHOSPHATE FERTILIZERS;

EID: 0030377558     PISSN: 12390518     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (23)

1. Veiderma, M., Knubovets, R., Tõnsuaadu, K., Fluorhydroxy-apatites of Northern Europe and Their Thermal Transformations. Phosphorus, Sulfur, and Silicon, 109-110 (1996), p.43-46.
2. Kiukkola, K., Seppälä, J., Airaksinen, T., Altonen, A., Selective Flotation of Apatite from Carbonatite Glimmerite Ore at the Siilinjärvi Mine of Kemira Oy, Finland. XIV Int. Mineral Processing Congress, Toronto, Canada, 1982, Oct. 17-23, Proceedings, Vol.5, p.7.1-7.15.
3. Puustinen, K. Geology of the Siilinjärvi Carbonatite Complex, Eastern Finland. Bull. Comm. Geol. Finland; 249. Geologinen Tutkimoslaitos, Odaniemi, 1971, 43p.
4. Kuusk, J., Glühaufschliessung der Phosphorite mit Kieselsäure zwecks Gewinnung eines citrallöslichen Düngmittels. Acta et Commentationes Universitatis Tartuensis (Dorpatensis). Mathematica, Physica, Medica. Tartu, A XX(1931), p.1-79.
5. Volfkovich, S.I., Veiderma, M.A., The Progress of Hydrothermal Processing of Phosphate Rock. Proceedings of 1978 ISMA Technical/ Economic Conference, Fertilizer Technology. Orlando (Florida, U.S.A.), 1978, p.49-62.
6. Veiderma, M., Effect of Phosphoric Acid Addition to the Natural Phosphates at Hydrothermal Treatment. Khim. Prom., (1971), No.4, p.279-284 (in Russian).
7. Veiderma, M., Pyldme, M., Tynsuaadu, K., Thermische Entfluorierung von Apatit. Chem. Techn., 40 (1988), No.4, 169-172.
8. Ando, J. Studies on Chemical Fertilizers. Nisshin Shuppan Co., Ltd., Tokyo, 1965. 293 p. (in Japanese).
9. Kochetkov, V.N. Fosforsoderzhashchiye udobreniya: Spravochnik. Khimiya, Moscow, 1982. 400p. (in Russian). Phosphate Fertilizers: Handbook.
10. Veiderma, M.A., Vinkman, A.O., Volfkovich, S. I., Defluorination of Maardu Phosphorite on Fluidized Bed Reactor Pilot Plant. Khim. Prom., (1975), No.4, p.193-195 (in Russian).
11. Veiderma, M.A., Kuusik, R.O., Jagodina, T.N., Skorobogatov, V.A., Hydrothermal Treatment of Natural Phosphates in Fluidized Bed Reactor. Problems of Chemistry and Chemical Technology. Moscow, 1977, p.184-192 (in Russian).
12. Veiderma, M., Pyldme, M., Tynsuaadu, K., Utsal, K., Mechanism of Reactions in Mixtures of Calcium Polyphosphate with Apatite and Accompanying Minerals During Heating. J. Therm.Anal., 32 (1987), p.1093-1103.
13. Veiderma, M., Pyldme, M., Tynsuaadu, K., Knubovets, R., Search for Natural Reagents for Obtaining Thermophosphates. Phosphorus Research Bull., 1 (1991), p.421-426.
14. Volfkovich, S.I., Remen, R.E., Sobolev, B.P., Timoshcnuk, N.B., Fertilizers from Kovdor Apatite Concentrate and Nepheline. Khim. Prom., (1978), No.12, p.906-907.
15. Tõnsuaadu, K., Veiderma, M., Composition and Properties of the Heating Products of the Mixture of Calcium Phosphate and Aluminosilicates. Proc. Estonian Acad. Sci. Chem., 41 (1992), No.4, p.157-163.
16. Tõnsuaadu, K., Rimm, K., Veiderma, M., Composition and Properties of Thermophosphates from Apatite and Aluminosilicates. Phosphorus, Sulfur, and Silicon, 84 (1993), p.73-81.
17. Tõnsuaadu, K., Rimm, K., Thermochemical Reactions in the Systems Hydroxyapatite - Aluminosilicates or Shungite. Proc. Estonian Acad. Sci. Chem., 43 (1994), No.4, p.137-145.
18. Official Methods of Analysis of the Association of Official Agricultural Chemists, Ed. Horwitz, W. Association of Official Agricultural Chemists, Washington, 1965. 958p.
19. Kelman, F.N., Brutskus, Ye.B., Osherovich, R.Kh. Metody analiza pri kontrole proizvodstva sernoi kisloty i fosfornykh udobreni. Khimiya, Moscow, 1965. 392p. (in Russian). Methods of Analysis in Manufacture of Sulphuric Acid and Phosphate Fertilizers.
20. Silverman, S.R., Fuyat, R.K., Weiser, I.D., Quantitative Determination of Calcite Associated with Carbonatebearing Apatites. Amer. Miner., 37 (1952), No.3-4, p.211-219.
21. 5. Chemia Stosowana, Ser.A, 11 (1967), No.3A, p.273-290.
22. Baatarsukh, B., Golubev, V.N., Lazoryak, B.I., Aziyev, R.G., Thermal Processing of Phosphates from Hubsugul Deposit. Khim. Prom., 1991, No. 11, p.663-665. (in Russian.)
23. Pechkovski, V.V., Shepeleva, V.V., Dzyuba, Ye.D., Sokolov, M.T., Belov, S .A., Ivkovich, N.A., Thermal Dissociation of Fluorapatite in the Mixture with Silicon and Titanium Dioxide. Zh. Prikl. Khim., 1987, No.8, p.1685-1691 (in Russian).