An improved method for production of silica from rice hull ash

Bioresource Technology

Volumn 85, Issue 3, 2002, Pages 285-289

  Kalapathy, U ^a   Proctor, A ^a   Shultz, J ^a  

^a UNIVERSITY OF ARKANSAS   (United States)

Author keywords

Rice hull ash; Silica xerogels; Sodium silicate

Indexed keywords

HULLS (SEED COVERINGS); PH EFFECTS; X RAY PHOTOELECTRON SPECTROSCOPY;

XEROGELS;

SILICA;

CARBON; CITRIC ACID; HYDROCHLORIC ACID; OXALIC ACID; OXYGEN; SILICA GEL; SILICATE; SILICON DIOXIDE; SODIUM;

SILICON;

ADSORPTION; ARTICLE; COMPARATIVE STUDY; EXTRACTION; METHODOLOGY; NONHUMAN; PH; PRIORITY JOURNAL; RICE; STATISTICAL ANALYSIS; X RAY PHOTOELECTRON SPECTROSCOPY;

ACIDS; AGRICULTURE; CITRIC ACID; GELS; HYDROCHLORIC ACID; HYDROGEN-ION CONCENTRATION; INCINERATION; MINERALS; ORYZA SATIVA; OXALIC ACID; QUALITY CONTROL; REFUSE DISPOSAL; SEEDS; SENSITIVITY AND SPECIFICITY; SILICATES; SILICON DIOXIDE;

FRAXINUS;

EID: 0036975134     PISSN: 09608524     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0960-8524(02)00116-5     Document Type: Article

References (11)

1. Brinker C.J., Scherer G.W. Applications. Sol-Gel Science, The Physics and Chemistry of Sol-Gel Processing. 1990;839-880 Academic Press, Inc. San Diego, CA.
2. Iler R.K. Silica gels and powders. Iler R.K. The Chemistry of Silica. 1979;462-599 John Wiley and Sons, New York, NY.
3. Kalapathy U., Proctor A., Schultz J. A simple method for production of pure silica from rice hull ash. Biores. Technol. 73:2000a;257-262.
4. Kalapathy U., Proctor A., Schultz J. Silica xerogels from rice hull ash: structure, density and mechanical strength as affected by gelation pH and silica concentration. J. Chem. technol. Biotechnol. 75:2000b;464-468.
5. Kamath S.R., Proctor A. Silica gel from rice hull ash: preparation and characterization. Cereal. Chem. 75:1998;484-487.
6. Krishnaro R.V., Godkhindi M.M. Distribution of silica in rice husk and its effect on formation of silicon carbide. Ceram. Intl. 18:1992;243-249.
7. Lender P.W., Ruiter R. Novel inorganic materials and heterogeneous catalysis. Sheats J.E., Carraher C.E., Pittman C.U., Eldin M., Currell B. Inorganic and Metal-Containing Polymeric Materials. 1990;187-195 Plenum Press, New York, NY.
8. Luan T.C., Chou T.C. Recovery of silica from the gasification of rice husk/coal in the presence of a pilot flame in a modified fluidized bed. Ind. Eng. Chem. Res. 29:1990;1922-1927.
9. Proctor A., Clark P.K., Parker C.A. Rice hull ash adsorbent performance under commercial soy oil bleaching conditions. J. AOCS. 72:1995;459-462.
10. SAS (1997). JMP IN Version 3.2.1. SAS Institute Inc., Cary, NC.
11. Sun L., Gong K. Review, silicon-based materials from rice husks and their applications. Ind. Eng. Chem. Res. 40:2001;5861-5877.