Sulu Ortamda SO2 Gazı İle Fosfat Kayasındaki Kalsitin Çözünme Kinetiği

Yıl 2007, Cilt: 3 Sayı: 1, 29 - 40, 01.03.2007

Ahmet Yartaşı Yüksel Abalı Hakan Temur M. Muhtar Kocakerim

Öz

Anahtar Kelimeler

-

Sulu Ortamda SO2 Gazı İle Fosfat Kayasındaki Kalsitin Çözünme Kinetiği

Öz

Yap lan bu çal mada fosfat kayas nda bulunan karbonatl minerallerin sulu ortamda SO2 gaz ile çözünme kineti i incelenmi tir.Çözündürme i lemlerinde reaksiyon s caklve kar t rma h z parametre olarak seçilmi tir. Reaksiyon s cakl oran ve tanecik boyutunun küçülmesi ile çözünme oran artm t r. Çözünme reaksiyonunun homojen 1. mertebe oldu u ve aktivasyon enerjisinin 21,70 kJ.mol-1 oldu u tespit edilmi tir

Anahtar Kelimeler

Fosfat kayas , Kalsit, Çözünme kineti i, SO2 gaz

Kaynakça

• 1. Anonymous, Kimya Sektör Ara t rmas : Fosfat , Türkiye S nai kalk nma Bankas Yay n , 17, 1-57, (1979).
• 2. San gök, Ü., Anorganik Endüstriyel Kimya , stanbul Üniversitesi Yay n , stanbul, 211-245, (1987).
• 3. Önal, G., Maz da Fosfat Cevherlerinin Petrografik Etüdü ve Zenginle tirilmesi , stanbul Teknik Üniversitesi Maden Fakültesi, Doktora Tezi, stanbul, (1970).
• 4. Sulc, J. And Hegner, P., Enriching of phosphates using sulfur dioxides , Chem. Prum., 32 (10), 521-523, Chem. Abs., 98, 18822c, (1982).
• 5. Enüstün, V., Güneydo u Cevherlerinin Mikro Yap s ve Çözünürlüklerinin Islah mkan , TÜB TAK Ara t rma Raporu MAG 29, Ankara, (1972).
• 6. Economou, E.D., Vaimakis, T.C. and Papamichael, E.M., The kinetics of dissolution of the carbonate minerals of phosphate ores using dilute acetic acid solutions: The case of pH range from 3.96 to 6.40 , Journal of Colloid and Interface Science, 245, 133-141, (2001).
• 7. Sadeddin, W. and Abu-Eishah, S.I., Minimization of free calcium carbonate in hard and medium hard phosphate rock using dilute acetic acid solution , International Journal of Mineral Processing, 30, pp 113-125, (1990).
• 8. Abu-Eishah, S.I., El-Jallad, I.S. and Muthaker, M., Beneficiation of calcareous phosphate rocks using dilute acetic acid solutions , International Journal of Mineral Processing, 31, pp 115-126, (1991).
• 9. Economou, E.D. and Vaimakis, T.C., 1997, Beneficiation of Greek calcareous phosphate ore using acetic acid solutions, Ind. Eng. Chem. Res., 36, pp (1491-1497).
• 10. McCullough, J., Philips, J. F. and Tate, L. R., Preparation of dicalcium phosphate from phosphate rock by the use of sulfurdioxide, water and carbonil compounds, U.S. Pat. 4, 113, 842, (1978).
• 11. Michel, R., Method for manufacture of phosphoric acid from phosphate rock , U.S. Pat. 4, 108, 957, (1978).
• 12. Abal , Y., Çolak, S. and Yarta , A., Dissolution kinetics of phosphate rock with Cl2 gas in water , Hydrometallurgy, 46, 13-25, (1997).
• 13. Yarta , A., Fosfat kayas n n sulu ortamda SO2 gaz ile çözünme kineti i , Atatürk Üniversitesi Fen Bilimleri Enstitüsü Doktora Tezi, Erzurum, (1993).
• 14. Abal , Y.; Çolak, S. and Yap c , S., The optimisation of the dissolution of phosphate rock with Cl2-SO2 gas mixtures in aqueous medium , Hydrometallurgy, 46, 27-35, (1997).
• 15. Calmanovici, C.E. and Giulietti, M., Technological optitude of some Brazillian phosphate rocks for acid decomposition , Ind. Eng. Chem. Res., 29 (3) 428-8, Chem. Abs. 112 (14), 121594 m. (1990).
• 16. Fitch, E.B., Roberts, E.J. and Weber, W.C., Phosphoric acid by the acidulation of the phosphate rock with sulfuric acid , U.S. Pat. 3, 552, 918. Chem. Abs., 74, 66162 p. (1971)
• 17. Treushchenko, N.N., Belyakov, V.A. and Pozin, M.E., Interaction of components of phosphate raw material with dilute sulfuric acid solutions , Zh. Prikl. Khim. 60 (8), 1681-5, Chem. Abs. 107, 179391 f., (1987).
• 18. Tennakonei K., Weerasooriya, S.V.R., Jayatissa, D.L., Domayanthi, M.L. W.D. and Silva, L.H.K., Nonhygroscopic superphosphate fertilizer from apatite and hydrochloric acid , Inst. Fund. Stud., Kandy, Sri Lanka Fert. Res., 16(1) 87-96, Chem. Abs. 109 (17), 148508 m., (1988).
• 19. Konyukhova, L.I. and Belokoskov, V.L., Recovery of phosphoric acid from an apatite concentrate by extraction with 1-butanol , Khim. Technol. Pererab. Redkometal Syr ya Kol sk. Poluostrava 3-11, Chem Abs. 80 (10), 49792 a., (1972).
• 20. Parlea, G., lovi, A. and Parlea, M., Studies on the decomposition process of phosphate rocks with nitric acid , Timisoara, Ser. Chim. 23 (1), Chem. Abs. 92. 163300 7 w., (1978).
• 21. Zhang, Yu. and Muhammed, M., An integrated process for the teratment of apatite obtained from dephosphorization of iron ore , J. Chem. Tech. Biotechnol., 4747-60, (1989).
• 22. Hussein, M. and Aglan, S., Extraction of Egyptian rock phosphate with ammonium bisulfate. Part 2. factors affecting dissolution of sibaiya rock in ammonium bisulfate , Chem. Econ. Eng. Rev. 11(10-11), 49-51 Chem. Abs. 92, 163016 y., (1979).
• 23. Furman, N. H., Standart Methods of Chemical Analysis , D. Van. Nostrand Company, Inc., Newyork (Six. ed.), (1963).
• 24. Alkan, M., Baz bor minerallerinin kükürt dioksitli sulardaki çözünürlükleri , Doktora tezi, Atatürk Üniversitesi Fen Bilimleri Enstitüsü, Erzurum, (1985).
• 25. Abal , Y.; Çolak, S. ve Ekmekyapar, A., Ma nezit mineralinin sulu ortamda kükürt dioksit gaz ile çözünme kineti i , Do a-Tr. J. of Engineering and Environmental Sciences, 16, 319- 324, (1992),
• 26. Moore, J.W. and Moore, E.A., Environmental Chemistry , Academic Pres, Inc., London, p.210- 211, (1976).