A mica-vermiculite mixed layer, the flakes of which present a surface of 1 to 4 mm , is swelled and then treated by acid solutions. The mica-vermiculite interstratification and the swelled state of this clay mineral give way to porous products with interesting characteristics : porosity and specific surface cover a wide domain and can reach respectively 0,75 cm3/gand 750 m3/g. The products have an important «strong acidity» exceeding 0,30 m.eq.glg (the corresponding product contains 99% of hydrated silica). This «strong acidity» is higher than that of an industrial silica-alumina catalyst. These products can be used as cracking catalysts and catalyst supports.Un interstratifié mica-vermiculite dont les paillettes présentent une surface de ...
Two natural vermiculites (Ver) with very similar chemical composition but slightly different low cha...
De nouveaux matériaux aluminosilicates (de Si/Al = 6 à pure silice) à structures hiérarchiques ont é...
La connaissance de l'aire superficielle des corps solides est un élément important dans la compréhen...
A mica-vermiculite mixed layer, the flakes of which present a surface of 1 to 4 mm , is swelled and ...
The acid treatment of water swollen 1-4 mm² flakes of an interstratified mica vermiculite mineral le...
A B S T R A C T: A mild acid attack of the Llano vermiculite produces porous materials suitable for ...
Vermiculite is a hydrated complex aluminum-iron-magnesium silicate, foliated in nature. It is the al...
Les travaux de recherche portent sur un procédé d élaboration par pressage de joints en vermiculite ...
Vermiculitization of mica is one of the main weathering processes in soils from three upland catchme...
La magadiite, un silicate lamellaire, a été synthétisée avec des atomes d Al en substitution Td dans...
upland catchments receiving various levels of acid deposition. Usually this process i manifested by ...
Les travaux de recherche portent sur un procédé d’élaboration par pressage de joints en vermiculite ...
The modulation and characterization of the acidity of a vermiculite were carried out, which was modi...
Import 22/07/2015Teoretická část předložené diplomové práce je zaměřena na vlastnosti vermikulitu a ...
Des aluminosilicates lamellaires comme la vermiculite (Palabora, Afrique du Sud), ainsi que des alum...
Two natural vermiculites (Ver) with very similar chemical composition but slightly different low cha...
De nouveaux matériaux aluminosilicates (de Si/Al = 6 à pure silice) à structures hiérarchiques ont é...
La connaissance de l'aire superficielle des corps solides est un élément important dans la compréhen...
A mica-vermiculite mixed layer, the flakes of which present a surface of 1 to 4 mm , is swelled and ...
The acid treatment of water swollen 1-4 mm² flakes of an interstratified mica vermiculite mineral le...
A B S T R A C T: A mild acid attack of the Llano vermiculite produces porous materials suitable for ...
Vermiculite is a hydrated complex aluminum-iron-magnesium silicate, foliated in nature. It is the al...
Les travaux de recherche portent sur un procédé d élaboration par pressage de joints en vermiculite ...
Vermiculitization of mica is one of the main weathering processes in soils from three upland catchme...
La magadiite, un silicate lamellaire, a été synthétisée avec des atomes d Al en substitution Td dans...
upland catchments receiving various levels of acid deposition. Usually this process i manifested by ...
Les travaux de recherche portent sur un procédé d’élaboration par pressage de joints en vermiculite ...
The modulation and characterization of the acidity of a vermiculite were carried out, which was modi...
Import 22/07/2015Teoretická část předložené diplomové práce je zaměřena na vlastnosti vermikulitu a ...
Des aluminosilicates lamellaires comme la vermiculite (Palabora, Afrique du Sud), ainsi que des alum...
Two natural vermiculites (Ver) with very similar chemical composition but slightly different low cha...
De nouveaux matériaux aluminosilicates (de Si/Al = 6 à pure silice) à structures hiérarchiques ont é...
La connaissance de l'aire superficielle des corps solides est un élément important dans la compréhen...