The glycerol challenge

Article Abstract:

Production of glycerol - the main by-product in transesterification of fatty acid triglycerides to yield fatty acid esters of the lower alcohols to produce biodiesel fuels - has grown, and there is an increasing need to transform glycerol into more valuable derivatives. Researches in biotech and chemical transformations of glycerol, and the applications of these processes in the biodiesels industry, are discussed.

Manufacturing processes, CHEMICALS AND ALLIED PRODUCTS, Glycerine, Production processes, Chemical reactions, Glycerol, Cell metabolism, Glycerin, Biodiesel fuels

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Clear brines as environmentally friendly reaction media in electrophilic aromatic substitution

Article Abstract:

The demand for green technologies that yield lesser organic wastes has grown due to growing environmental awareness in the chemical industry. A study on the usage of zinc bromide solutions (also known as clear brines) as an alternative media in halogenation reactions of deactivated aromatic compounds - as well as in aromatic alkylation and acylation reactions - is discussed.

Cyclic Crude and Intermediate Manufacturing, Brominated Aromatics, Acyclic Bromine Compounds, Acyclic Bromines NEC, Ionic solutions, Aromatic compounds, Bromides, Brominated hydrocarbons, Substitution reactions, Zinc compounds, Bromides (Chemistry)

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Immobilisation technology for green chemistry applications

Article Abstract:

The usage of heterogeneous reagents containing an immobilized functionality in various chemical processes has grown popular because this technology is more efficient, economical and environmentally friendly. The applications of immobilized functionalized silicas in different chemical reactions and how they can aid in waste minimization are discussed.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Silicates, Heterogeneous catalysis, Oxidation-reduction reaction, Oxidation-reduction reactions, Rearrangements (Chemistry), Immobilized enzymes

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