Preparation of particulate composite material with carbon matrix
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsSerge Moreau, Bernard Sardan, Pierre Ehrburger
Life of this patent
Estimating the term…
Abstract
The present invention concerns a polyphase particulate composite material containing a microporous phase which is essentially carbon whose microporous volume is between 0.1 cm.sup.3 /g and 1 cm.sup.3 /g, which is associated with an amorphous mineral dispersed phase essentially consisting of an oxide of silicon, aluminum, titanium or magnesium disposed on the carbon phase, at a thickness of less than 10 nm. The invention is also concerned with a process for the preparation of these composite materials, and the use thereof as a molecular sieve.
Claims7
Process for the preparation of composite particulate material, which comprises contacting an essentially carbon microporous particulate matrix with a volatile gaseous precursor, said precursor comprising silicon, aluminum, titanium or magnesium, and heat treating the matrix to decompose the precursor on the matrix in situ at the temperature of decomposition of the volatile precursor and form said material, wherein said material includes an essentially carbon microporous phase having a microporous volume between 0.1 and 1 cm.sup.3 /g, associated with an amorphous mineral dispersed phase essentially containing a mineral oxide selected from the group consisting of silicon, aluminum, titanium and magnesium oxides, disposed on the carbon phase to a thickness of less than 10 nm.
Dependencies are inferred from the claim text.