Humic Acids from Raw Materials of the Czech Republic

0371216 - BC 2012 RIV US eng M - Monography Chapter
Novák, J. - Novák, František - Madronová, L. - Machovič, V. - Kozler, J.
Oxidation of coal-based raw materials by nitric acid.
Humic Acids from Raw Materials of the Czech Republic. New York: Nova Science Publisher, 2011 - (Madronová, L.), s. 105-123. Chemistry Research and Applications. ISBN 978-1-61668-965-0
Institutional research plan: CEZ:AV0Z60660521
Keywords : oxidation * coal-based raw materials * nitric acid
Subject RIV: CB - Analytical Chemistry, Separation

The process of oxidation of coal-based raw material in solid phase by nitric acid is described. The procedure was designed so that it can also be realized on a large industrial scale. Two coal raw materials were chosen for this research: coal from the Družba open-cast mine in the Sokolov Coal Basin, and lignite from the mine in Mikulčice belonging to the Vienna Basin. There is a description of the technological parameters of coal-based raw material oxidation by nitric acid as well as an evaluation of the consumption of nitric acid in relation to the amount of organic matter entering the process, and the achieved content of leachable humic substance in the products prepared. Oxidized products were used for the preparation of alkali nitrohumates from which nitrohumic acids were prepared. The chapter presents the chemical and structural parameters of the starting raw materials and the prepared products. The biological activity of the produced potassium nitrohumates was also evaluated.
Permanent Link: http://hdl.handle.net/11104/0204786