Journal of Powder Metallurgy & Mining
Open Access

Review Article

Integrated Processing of Rice Hulls for Production of Polyfunctional Materials

Corby G Anderson^1*, SV Yefremova² and YuI Sukharnikov²

¹Kroll Institute for Extractive Metallurgy, Colorado School of Mines, Golden, Colorado, USA

²The National Center for Mineral Raw Materials Complex Processing, 67, Zhandosov Street, 050036, Almaty, Ka-zakhstan, USA

*Corresponding Author:

Corby G Anderson
Professor, Kroll Institute for Extractive Metallurgy
Colorado School of Mines, Golden, Colorado, USA
E-mail: cganders@mines.edu

Received Date: August 02, 2013; Accepted Date: September 04, 2013; Published Date: September 11, 2013

Citation: Anderson CG, Yefremova SV and Sukharnikov Y (2013) Integrated Processing of Rice Hulls for Production of Polyfunctional Materials. J Powder Metall Min 2:112. doi: 10.4172/2168-9806.1000112

Copyright: © 2013 Anderson, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

The following method has been proposed for processing the rice hulls with producing materials of polyfunctional purpose that includes the washing, drying, and pyrolysis of the raw materials, and condensation of the vapor-gas mixture. The solid product – nanocomposite produced by densely packed carbon nanoparticles (~500 Å) and silicon dioxide (100÷200Å), which were present in the amorphous form in number of ~52.0% and ~35.0% respectively, proved to be advanced filler for elastomers, sorbent for recovery of precious and rare metals, and fodder supplement for the farm poultry. The organic product (aqueous solution of carboxylic acids (22%), phenols (14%), ketones (12%), cyclic aliphatic hydrocarbons (4.5%), heterocyclic compounds (4%), and spirits and esters (4.5%)) is a high-selective collector to the lead minerals when beneficiating complex rebellious ores, plant growth stimulant used on the non-productive soils and an antiseptic agent. The mixture of non-condensable gases (percent by volume: СН4~ 40÷45;С2Н4~ 4÷6; СО 2 ~ 20÷22; СО ~ 22÷24; Н2~ 4÷6) can be used for producing carbon black or as a high-calorific fuel

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