International Research journal of Management Science and Technology

  ISSN 2250 - 1959 (online) ISSN 2348 - 9367 (Print) New DOI : 10.32804/IRJMST

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RECENT DEVELOPMENTS IN GREEN CHEMICAL EXTRACTION TECHNIQUES

    1 Author(s):  MANOJ K S CHHANGANI

Vol -  6, Issue- 6 ,         Page(s) : 132 - 136  (2015 ) DOI : https://doi.org/10.32804/IRJMST

Abstract

Abstract: Society is now more concern about the negative impacts of fossil fuels on the environment. Biomass is a one of few sustainable alternatives to fossil fuels and a source of renewable carbon, but the bio-refineries are not in fact green, as sketched by the 12 Principles of Green Chemistry given by Paul Anastas and John Warner. Many of the bio-refineries involve the extraction of natural polymers and other valuable materials from lingo-cellulosic biomass in initial processing steps. At this stage, solvents and reagents used to dissolve and extract cellulose from lingo-cellulosic materials are toxic and harmful to the environment. An attempt has been made in this paper to focus on recent developments of alternative green chemical extraction techniques, (1) the use of ionic liquids and (2) supercritical carbon dioxide. Attempt has also been made to discuss the applicability of these methods. Current status and challenges are also highlighted.

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