An experimental study of magnesite dissolution rates at neutral to alkaline conditions and 150 and 200°C as a function of pH, total dissolved carbonate concentration, and chemical affinity

Geochimica et Cosmochimica Acta

Volumn 74, Issue 22, 2010, Pages 6344-6356

  Saldi, Giuseppe D ^a   Schott, Jacques ^a   Pokrovsky, Oleg S ^a   Oelkers, Eric H ^a  

^a UNIVERSITÉ DE TOULOUSE   (France)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON DIOXIDE; CARBON SEQUESTRATION; CARBONATE; COMPLEXATION; CONCENTRATION (COMPOSITION); DISSOLUTION; EXPERIMENTAL STUDY; MAGNESITE; PH; TEMPERATURE EFFECT;

EID: 77957868545     PISSN: 00167037     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.gca.2010.07.012     Document Type: Article

References (47)

1. Aagaard P., Helgeson H.C. Thermodynamic and kinetic constraints on reaction-rates among minerals and aqueous solutions: I. Theoretical considerations. Am. J. Sci. 1982, 282:237-285.
2. Alkattan M., Oelkers E.H., Dandurand J.-L., Schott J. An experimental study of calcite and limestone dissolution rates as a function of pH from -1 to 3 and temperature from 25 to 80°C. Chem. Geol. 1998, 151:199-214.
3. Brunauer S., Emmet P.H., Teller E. Adsorption of gases in multimolecular layers. J. Am. Chem. Soc. 1938, 60:309-319.
4. 2. Am. J. Sci. 1982, 282:45-78.
5. 2(aq), Al(aq) and temperature. Chem. Geol. 2005, 217:213-225.
6. Casey W.H., Sposito G. On the temperature dependance of mineral dissolution rates. Geochim. Cosmochim. Acta 1992, 56:3825-3830.
7. Chou L., Garrels R.M., Wollast R. Comparative study of the kinetics and mechanisms of dissolution of carbonate minerals. Chem. Geol. 1989, 78:269-282.
8. Devidal J.-L., Schott J., Dandurand J.-L. An experimental study of kaolinite dissolution and precipitation kinetics as a function of chemical affinity and solution composition at 150°C, 40 bars, and pH 2, 6.8, and 7.8. Geochim. Cosmochim. Acta 1997, 61:5165-5186.
9. Dove P.M., Crerar D.A. Kinetics of quartz dissolution in electrolyte solution using a hydrothermal mixed flow reactor. Geochim. Cosmochim. Acta 1990, 54:955-969.
10. Duckworth O.W., Martin S.T. Dissolution rates and pit morphologies of rhombohedral carbonate minerals. Am. Mineral. 2004, 89:554-563.
11. Eyring H. The activated complex in chemical reactions. J. Chem. Phys. 1935, 3:107-115.
12. Gautelier M., Oelkers E.H., Schott J. An experimental study of dolomite dissolution rates as a function of pH from -1 to 4 and temperature from 25 to 80°C. Chem. Geol. 1999, 157:13-26.
13. Gautier J.-M., Oelkers E.H., Schott J. Experimental study of K-feldspar dissolution rates as a function of chemical affinity at 150°C and pH 9. Geochim. Cosmochim. Acta 1994, 58:4549-4560.
14. 2 pressure. Chem. Eng. Sci. 2008, 63:1012-1028.
15. Higgins S.R., Jordan G., Eggleston C.M. Dissolution kinetics of magnesite in acidic aqueous solution: a hydrothermal atomic force microscopy study assessing step kinetics and dissolution flux. Geochim. Cosmochim. Acta 2002, 66:3201-3210.
16. Jiang S.Y., Chen C.X., Jiang Y.H., Dai B.Z., Ni P. Geochemistry and genetic model for the giant magnesite deposits in the eastern Liaoning province, China. Acta Petrol. Sin. 2004, 20:765-772.
17. Jordan G., Higgins S.R., Eggleston C.M., Knauss K.G., Schmahl W.W. Dissolution kinetics of magnesite in acidic aqueous solution, a hydrothermal atomic force microscopy (HAFM) study: step orientation and kink dynamics. Geochim. Cosmochim. Acta 2001, 65:4257-4266.
18. Jordan G., Pokrovsky O.S., Guichet X., Schmahl W.W. Organic and inorganic ligand effects on magnesite dissolution at 100°C and pH=5 to 10. Chem. Geol. 2007, 242:484-496.
19. Lasaga A.C. Transition state theory. Rev. Mineral. 1981, 8:135-169.
20. Morse J.W., Arvidson R.S. The dissolution kinetics of major sedimentary carbonate minerals. Earth Sci. Rev. 2002, 58:51-84.
21. Morse J.W., Arvidson R.S., Luttge A. Calcium carbonate formation and dissolution. Chem. Rev. 2007, 107:342-381.
22. Oelkers E.H., Cole D.R. Carbon dioxide sequestration: a solution to a global problem. Elements 2008, 4:305-310.
23. Oelkers E.H., Schott J. An experimental study of the dissolution rate of kyanite as a function of chemical affinity and solution composition. Geochim. Cosmochim. Acta 1999, 63:785-798.
24. 2 sequestration. Chem. Geol. 2005, 217:183-186.
25. Oelkers E.H., Schott J., Devidal J.-L. The effect of aluminum, pH, and chemical affinity on the rates of alumino-silicate dissolution reactions. Geochim. Cosmochim. Acta 1994, 58:2011-2024.
26. 2. Elements 2008, 4:333-337.
27. Oelkers E.H., Schott J., Gauthier J.-M., Herrero-Roncal T. An experimental study of the dissolution mechanism and rates of muscovite. Geochim. Cosmochim. Acta 2008, 72:4948-4961.
28. Parkhurst D. L. and Appelo C. A. J. (1999) User's guide to PHREEQC (version 2) - a computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations. U.S. Geological Survey Water-Resources Investigation Report 99-4259, p. 312.
29. 2. Am. J. Sci. 1978, 278:179-216.
30. Pokrovsky O.S., Schott J. Processes at the magnesium-bearing carbonates solution interface: II. Kinetics and mechanism of magnesite dissolution. Geochim. Cosmochim. Acta 1999, 63:881-897.
31. Pokrovsky O.S., Schott J. Kinetics and mechanism of dolomite dissolution in neutral to alkaline solutions revisited. Am. J. Sci. 2001, 301:597-626.
32. Pokrovsky O.S., Schott J. Surface chemistry and dissolution mechanism of divalent metal carbonates. Environ. Sci. Technol. 2002, 36:426-432.
33. Pokrovsky O.S., Schott J., Thomas F. Processes at the magnesium-bearing carbonates/solution interface: I. A surface speciation model for magnesite. Geochim. Cosmochim. Acta 1999, 63:863-880.
34. Pokrovsky O.S., Schott J., Thomas F. Dolomite surface speciation and reactivity in aquatic systems. Geochim. Cosmochim. Acta 1999, 63:3133-3143.
35. Pokrovsky O.S., Mielczarski J.A., Schott J. Surface speciation of dolomite and calcite in aqueous solutions. Encyclopedia of Surface and Colloid Science 2001, 5081-5095. Marcel Dekker Inc. A. Hubbard (Ed.).
36. 2. Chem. Geol. 2005, 217:239-255.
37. 2. Chem. Geol. 2009, 265:33-43.
38. 2 sequestration in sedimentary basins. Chem. Geol. 2009, 265:20-32.
39. Saldi G. D. (2009) Les cinétiques de dissolution et précipitation de la magnesite aux conditions hydrothermales. Thèse de l'Université Paul-Sabatier, Toulouse, 225p.
40. Saldi G.D., Jordan G., Schott J., Oelkers E.H. Magnesite growth rates as a function of temperature and saturation state. Geochim. Cosmochim. Acta 2009, 73:5646-5657.
41. Schott J., Pokrovsky O.S., Oelkers E.H. The link between mineral dissolution/precipitation kinetics and solution chemistry. Rev. Mineral. 2009, 70:207-258.
42. Shock E.L., Sassani D.C., Willis M., Sverjensky D.A. Inorganic species in geologic fluids: correlations among standard molal thermodynamic properties of aqueous ions and hydroxide complexes. Geochim. Cosmochim. Acta 1997, 61:907-950.
43. Talman S. J., Wiwchar B., Gunter W. D. and Scarge C. M. (1990) Dissolution kinetics of calcite in the H2O-CO2 system along the steam saturation curve to 210°C. In Fluid-Mineral Interactions: A Tribute to H.P. Eugster (eds. R. J. Spencer and I. M. Chou). Geochem. Soc. Spec. Publ. Ser. 2, pp. 41-55.
44. Van Cappellen P., Charlet L., Stumm W., Wersin P. A surface complexation model of the carbonate mineral-aqueous solution interface. Geochim. Cosmochim. Acta 1993, 57:3505-3518.
45. Villegas-Jiménez A., Mucci A., Pokrovsky O.S., Schott J. Defining reactives sites on hydrated mineral surfaces: rhombohedral carbonate minerals. Geochim. Cosmochim. Acta 2009, 73:4326-4345.
46. 3. Aquatic Chemical Kinetics: Reaction Rates of Processes in Natural Waters 1990, 431-445. John Wiley & Sons, New York. W. Stumm (Ed.).
47. Zhang R., Hu S., Zhang X., Yu W. Dissolution kinetics of dolomite in water at elevated temperatures. Aquat. Geochem. 2007, 13:309-338.