Thermal stability of humic acids and some of their derivatives

Autor:	Josef Kozler, Pavel Janoš
Rok vydání:	1995
Předmět:	General Chemical Engineering Sodium Organic Chemistry Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element complex mixtures chemistry.chemical_compound Ammonia Fuel Technology Pilot plant chemistry Organic chemistry Ammonium Thermal stability
Zdroj:	Fuel. 74:708-713
ISSN:	0016-2361
DOI:	10.1016/0016-2361(94)00007-e
Popis:	The thermal stability of humic substances (humic acids, sodium humate and ammonium humate) manufactured on the plant or pilot plant scale was examined within the temperature range 150–250°C with a period of heating up to 60 min. Under these conditions no significant destruction of the skeleton of the humic substances occurs; in spite of a certain loss in weight, these materials retain the fundamental characteristics of humic substances such as the content of functional groups and the distribution of molecular weights. By heating ammonium humate to 150°C, liberation of ammonia takes place and the resulting product has the properties of pure humic acids
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::85ff630026ab3f9674f413fc876348e6 https://doi.org/10.1016/0016-2361(94)00007-e Zobrazit plný text záznamu Full Text from ScienceDirect