PROCEDURE FOR OBTAINING HUMIC ACIDS WITH HIGH METAL ION COMPLEXATION CAPACITY AND PRODUCT OBTAINED USING SAID PROCEDURE

The invention provides a procedure for obtaining humic acids extracted from leonardites which have greater capacity to form complexes with metal ions, said procedure including selective activation, extraction and purification that increases the capacity of the complex-forming functional groups prese...

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Bibliographische Detailangaben
Hauptverfasser:	MARTIN PEREZ, Julia Raquel, FERRER GINES, María, ATARES REAL, Sergio, SALAET MADORRAN, Ignasi, NARANJO OLIVERO, Miguel Angel, ROMERO LOPEZ, Joaquin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS FERTILISERS FERTILISERS PRODUCING CARBON DIOXIDE INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C MANUFACTURE THEREOF METALLURGY ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention provides a procedure for obtaining humic acids extracted from leonardites which have greater capacity to form complexes with metal ions, said procedure including selective activation, extraction and purification that increases the capacity of the complex-forming functional groups present in humic acids to form complexes with said metal ions. The procedure of the invention essentially includes a first molturation stage in leonardite liquid and two extraction stages based on a basic pH gradient.