Recovery of high surface area mesoporous silica from waste hexafluorosilicic acid (H2SiF6) of fertilizer industry

Journal of Hazardous Materials

Volumn 173, Issue 1-3, 2010, Pages 576-580

  Sarawade, Pradip B ^a   Kim, Jong Kil ^b   Hilonga, Askwar ^a   Kim, Hee Taik ^a  

^a Hanyang University   (South Korea)

^b E and B Nanotech Co Ltd   (South Korea)

Author keywords

Fertilizer; Hexafluorosilicic acid; Mesoporous silica; Sodium fluoride

Indexed keywords

ABSORPTION/DESORPTION; AQUEOUS SLURRIES; AQUEOUS SOLUTIONS; ECONOMIC BENEFITS; EVAPORATION METHOD; FERTILIZER INDUSTRY; HIGH PURITY; HIGH SURFACE AREA; HIGH SURFACE AREA MESOPOROUS; MESOPOROUS SILICA; PORE DIAMETERS; SCANNING ELECTRON MICROSCOPES; SODIUM FLUORIDE; WASTE MATERIALS;

ACIDS; FILTRATION; PHOSPHATE FERTILIZERS; SCANNING ELECTRON MICROSCOPY; SODIUM; SOLVENT EXTRACTION; THERMOGRAVIMETRIC ANALYSIS; X RAY DIFFRACTION; X RAY DIFFRACTION ANALYSIS;

SILICA;

FLUORIDE SODIUM; HEXAFLUOROSILICIC ACID; NITROGEN; PHOSPHATE FERTILIZER; SILICIC ACID; SILICON DIOXIDE; SODIUM CARBONATE; UNCLASSIFIED DRUG;

ABSORPTION; ACID; AQUEOUS SOLUTION; DESORPTION; EVAPORATION; FERTILIZER; FILTRATION; HAZARDOUS WASTE; INDUSTRIAL WASTE; PHOSPHATE; POROUS MEDIUM; REACTION KINETICS; SCANNING ELECTRON MICROSCOPY; SILICA; SLURRY; WASTE TREATMENT; X-RAY DIFFRACTION;

ABSORPTION; ALKALINITY; AQUEOUS SOLUTION; ARTICLE; CONTROLLED STUDY; DANGEROUS GOODS; DESORPTION; EVAPORATION; FILTRATION; INDUSTRIAL WASTE; MOLECULAR WEIGHT; POROSITY; REACTION ANALYSIS; SCANNING ELECTRON MICROSCOPY; THERMOGRAVIMETRY; WASTE COMPONENT REMOVAL; X RAY DIFFRACTION; X RAY SPECTROMETRY;

ELECTROCHEMISTRY; FERTILIZERS; FLUORIDES; HYDROGEN-ION CONCENTRATION; INDICATORS AND REAGENTS; INDUSTRIAL WASTE; INDUSTRY; MICROSCOPY, ELECTRON, SCANNING; NITROGEN; POROSITY; SILICIC ACID; SILICON DIOXIDE; SODIUM FLUORIDE; SURFACE PROPERTIES; THERMOGRAVIMETRY; X-RAY DIFFRACTION;

EID: 71749110326     PISSN: 03043894     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jhazmat.2009.08.125     Document Type: Article

References (20)

1. Yu H.S., Rhee K.I., Lee C.K., and Yang D.H. Two-step ammoniation of by-product fluosilicic acid to produce high quality amorphous silica. Korean J. Chem. Eng. 17 4 (2000) 401-408
2. Krysztafkiewicz A. Use of highly dispersed, precipitated carbonate-silicate powders as fillers for elastomers. Powder Technol. 63 1 (1990) 1-11
3. Krysztafkiewicz A., Rager B., and Maik M. Silica recovery from waste obtained in hydrofluoric acid and aluminum fluoride production from fluosilicic acid. J. Hazard. Mater. 48 (1996) 31-49
4. S.K. Sikdar, J.H. Moore, Process for producing fluorine compounds and amorphous silica, US Pat. 4,308,244 (1981).
5. S.K. Sikdar, J.H. Moore, Recovery of hydrofluoric acid from fluosilicic acid with high pH hydrolysis, US Pat. 4,213,951 (1980).
6. R. Spijker, Process for the preparation of pure silicon dioxide, European Patent 94,139 (1983).
7. Dragicevic T., and Hraste M. Surface area of silica produced by neutralization of fluosilicic acid. Chem. Biochem. Eng. 8 3 (1994) 141-143
8. Zorya L., and Krot V. Method of high-purity silica production from hexafluorosilicic acid. React. Kinet. Catal. Lett. 50 1-2 (1993) 349-354
9. Krot V.V., Zoryal L.N., Orlova O.D., Panasyuk G.P., lazarev V.B., Vinogradov E.E., Tarasova G.N., Karataeva I.M., and Nikolaeva L.N. Preparation of amorphous silicon dioxide from hexafluorosilicic acid. Zhurnal Neorganicheskoy Khimii 37 6 (1992) 608-610
10. 6 in ammonia surfactant solution. Colloid Interface Sci. 192 (1997) 156-161
11. C. Barber, C. James, Recovery of fluorine from waste gases, US Pat. 4,613,494 (1986).
12. 6 by a non-ionic polyethyleneoxide surfactant template microporous. Mesopor. Mater. 27 2-3 (1999) 255-259
13. S.K. Sikdar, et al., Preparation of calcium fluoride from fluosilicic acid solutions, US Pat. 4,264,563 (1980).
14. Brinker C.J., and Sherere S.W. Sol-Gel Science: The physics and Chemistry of Sol-Gel Processing (1990), Academic Press, San Diego p. 662
15. Kim D.S., and Lee C.K. Surface modification of precipitated calcium carbonate using aqueous fluosilicic acid. Appl. Surf. Sci. 202 1-2 (2002) 15-23
16. In: O' Connor D.J., Sexton B.A., and St Smart R.C. (Eds). Surface Analysis Method in Materials Science (2003), Springer 23
17. Cardinal T., Efimov O.M., Francois-Saint-Cyr H.G., Glebov L.B., Glebova L.N., and Smirnov V.I. Comparative study of photo-induced variations of X-ray diffraction and refractive index in photo-thermo-refractive glass. J. Non-Cryst. Solids 325 1-3 (2003) 275-281
18. Mohanan J.L., and Brock S.L. Influence of synthetic and processing parameters on the surface area, speciation, and particle formation in copper oxide/silica aerogel composites. Langmuir 15 13 (2003) 2567-2576
19. Li W.C., Lu A.H., and Guo S.C. Control of mesoporous structure of aerogels derived from cresol-formaldehyde. J. Colloid Interface Sci. 254 1 (2002) 153-157
20. Pierre A.C., Elaloui E., and Pajonk G.M. Comparison of the structure and porous texture of alumina gels synthesized by different methods. Langmuir 14 1 (1998) 66-73