Samples of natural clay composed by kaolinite, illite, goethite and quartz, were calcinated and submitted to lixiviation with citrate and chloridric acid in order to remove iron. Investigation due to extraction consequences was carried cut by analyzing its acid properties using ammonia gas as probe in infrared spectrophotometry analysis. The sample that were treated with citrate followed by acid lixiviation yield materials twice more acid than samples treated with acid only
ABSTRACT: The removal of the alkali-soluble fraction from soil clays has been found to influence mar...
This study explored the influences of iron impurities present in a low-grade kaolinite (17.46% Fe2O3...
Kaolin or china clay is a versatile industrial mineral with wide technological applications. The maj...
An extraction sequence in three steps with buffered hydroxylamine hydrochloride, oxalate and dithion...
Helios Rybicka, E. and Calmano, W., 1988. Changes in physico-chemical properties of some clay minera...
Naturally occurring clays typically are mixtures of clay minerals and non-clay minerals, such as qua...
A B S T R A C T: The efficiency ofremoval of the free iron from kaolinite-group minerals by means of...
Abstract--One-g samples of a montmorillonite, a metabentonite, anillite, two kaolinites, and three h...
The present study deals with chemical leaching tests conducted on Batn El-Ghoul kaolin clay deposit,...
in a synthetic groundwater solution under oxic and anoxic conditions at 23 and 70 ~ for 200 days. Th...
The impurities like iron and titania present in kaolinite generally give rise to undesirable colour ...
Ilmenite is the most abundant mineral for the extraction of titanium. It contains more than 50% TiO2...
The removal of iron from Sabah montmorillonite mineral with three organic acids (citric, gluconic an...
ABSTRACT: Fe substitution for AI in kaolinite (from Venezuelan laterites) is proved by infrared spec...
Raw kaolin was refluxed by sulphuric acid in variable concentrations of 2 M, 4 M, 6 M and 8 M. The m...
ABSTRACT: The removal of the alkali-soluble fraction from soil clays has been found to influence mar...
This study explored the influences of iron impurities present in a low-grade kaolinite (17.46% Fe2O3...
Kaolin or china clay is a versatile industrial mineral with wide technological applications. The maj...
An extraction sequence in three steps with buffered hydroxylamine hydrochloride, oxalate and dithion...
Helios Rybicka, E. and Calmano, W., 1988. Changes in physico-chemical properties of some clay minera...
Naturally occurring clays typically are mixtures of clay minerals and non-clay minerals, such as qua...
A B S T R A C T: The efficiency ofremoval of the free iron from kaolinite-group minerals by means of...
Abstract--One-g samples of a montmorillonite, a metabentonite, anillite, two kaolinites, and three h...
The present study deals with chemical leaching tests conducted on Batn El-Ghoul kaolin clay deposit,...
in a synthetic groundwater solution under oxic and anoxic conditions at 23 and 70 ~ for 200 days. Th...
The impurities like iron and titania present in kaolinite generally give rise to undesirable colour ...
Ilmenite is the most abundant mineral for the extraction of titanium. It contains more than 50% TiO2...
The removal of iron from Sabah montmorillonite mineral with three organic acids (citric, gluconic an...
ABSTRACT: Fe substitution for AI in kaolinite (from Venezuelan laterites) is proved by infrared spec...
Raw kaolin was refluxed by sulphuric acid in variable concentrations of 2 M, 4 M, 6 M and 8 M. The m...
ABSTRACT: The removal of the alkali-soluble fraction from soil clays has been found to influence mar...
This study explored the influences of iron impurities present in a low-grade kaolinite (17.46% Fe2O3...
Kaolin or china clay is a versatile industrial mineral with wide technological applications. The maj...
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