About: The release of iron-bearing minerals and dissolution of feldspars by heterotrophic bacteria of Bacillus species.

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About: The release of iron-bearing minerals and dissolution of feldspars by heterotrophic bacteria of Bacillus species. Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Dissolution of aluminosilicates and Fe-oxyhydroxide minerals from granitic eluvium using bacteria of Bacillus genus was monitored with solution chemistry, granulometric and X-ray analyses as well as microscopic techniques to determine the effects of these bacteria on crystal surface and releasing mechanism of K, Si, Fe, and Al from minerals. Feldspars, quartz and micas are dominant minerals in granitic eluvium (GE). Oxyhydroxides of Fe are found in the intergranular spaces of minerals, contaminating and making most feldspar raw materials unsuitable for commercial applications. Bacteria of Bacillus spp. decrease pH of leaching medium by production of organic acids. These organic acids are directed by glycocalyx of adherent bacteria to specific sites on mineral surface (e.g. to crystal defects). The impregnated iron minerals are released by bacterial destruction of intergranular and cleavage spaces of silicate grains. This bacterial activity results in the release of Fe, Si, and K from feldspar and Fe o Dissolution of aluminosilicates and Fe-oxyhydroxide minerals from granitic eluvium using bacteria of Bacillus genus was monitored with solution chemistry, granulometric and X-ray analyses as well as microscopic techniques to determine the effects of these bacteria on crystal surface and releasing mechanism of K, Si, Fe, and Al from minerals. Feldspars, quartz and micas are dominant minerals in granitic eluvium (GE). Oxyhydroxides of Fe are found in the intergranular spaces of minerals, contaminating and making most feldspar raw materials unsuitable for commercial applications. Bacteria of Bacillus spp. decrease pH of leaching medium by production of organic acids. These organic acids are directed by glycocalyx of adherent bacteria to specific sites on mineral surface (e.g. to crystal defects). The impregnated iron minerals are released by bacterial destruction of intergranular and cleavage spaces of silicate grains. This bacterial activity results in the release of Fe, Si, and K from feldspar and Fe o (en)
Title	The release of iron-bearing minerals and dissolution of feldspars by heterotrophic bacteria of Bacillus species. The release of iron-bearing minerals and dissolution of feldspars by heterotrophic bacteria of Bacillus species. (en)
skos:prefLabel	The release of iron-bearing minerals and dissolution of feldspars by heterotrophic bacteria of Bacillus species. The release of iron-bearing minerals and dissolution of feldspars by heterotrophic bacteria of Bacillus species. (en)
skos:notation	RIV/61388980:_____/03:50033020!RIV/2004/AV0/A50004/N
http://linked.open.../vavai/riv/strany	20;26
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z4032918)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Hradil, David Bezdička, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav anorganické chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	625199
http://linked.open...ai/riv/idVysledku	RIV/61388980:_____/03:50033020
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	bioleaching; feldspars; Bacillus (en)
http://linked.open.../riv/klicoveSlovo	Bacillus feldspars bioleaching
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[F1848018B366]
http://linked.open...i/riv/nazevZdroje	Ceramics-Silikáty
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	47
http://linked.open...iv/tvurceVysledku	Bezdička, Petr Hradil, David Štyriaková, I. Štyriak, I. Galko, I.
http://linked.open...n/vavai/riv/zamer	Synthesis and structure of novel (inorganic) compounds, clusters and composites; mechanisms of conversion and transfer in systems involving inorganic substance
issn	0862-5468
number of pages	7 (xsd:int)

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