Asian Journal of Scientific Research1992-14542077-2076Asian Network for Scientific Information10.3923/ajsr.2013.573.580UgheokeBenjamin Iyenagbe MamatOthman Ari-WahjoediB. 3201363It is an established fact that rice husk is rich in amorphous silica which
when extracted in sufficiently pure form, could be used in several industrial
applications and in the manufacture of value added products. Many of the processes
employed for the purification of rice husk silica involve the use of strong
acid and bases, requiring complex unit operations and extended times, apart
from their unfriendliness to environment and personnel. The hydro thermobaric
process was developed as a viable alternative to these rice husk silica purification
processes. This study reported a performance comparison in terms of product
purity, yield, structure and processing time between the newly developed hydro
thermobaric and other previously used processes. The new process surpasses others
in terms of processing time and yield while being at par with them in terms
of product quality and structure.]]>Chandrasekhar, S., K.G. Satyanarayana, P.N. Pramada and P. Raghavan,20033831593168Goncalves, M.R.F. and C.P. Bergmann,20072120592065Kalapathy, U., A. Proctor and J. Shultz,199973257262Krishnarao, R.V., M.M. Godkhindi, M. Chakraborty and P.G. Mukunda,19942927412744Tzong-Horng, L.,2004364313323Mehdinia, S.M., P.A. Latif, A.M. Abdullah and H. Taghipour,20114246254Nittaya, T. and N. Apinon,200835206211Panpa, W. and S. Jinawath,200990389394Real, C., M.D. Alcala and J.M. Criado,19967920122016Rozainee, M., S.P. Ngo, A.A. Salema and K.G. Tan,2008123342Sun, L. and K. Gong,20014058615877Tang, Q. and T. Wang,2006359194Ugheoke, B.I. and O. Mamat,20123139155Umeda, J. and K. Kondoh,2008371317Yalcin, N. and V. Sevinc,200127219224Zain, M.F.M., M.N. Islam, F. Mahmud and M. Jamil,201125798805