Mesoporous organic-inorganic hybrid materials for separating gases

US7517512B2 · kind B2 · utility

Assignee

• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR

Inventors

• Robert Corriu · Montpellier, FR
• Ahmad Mehdi · Montpellier, FR
• Catherine Reye · Montpellier, FR
• Henry Ledon · Versailles, FR
• Roger Guilard · Talant, FR
• Stéphane Brandes · Dijon, FR
• Chloe Thieuleux · Villeurbanne, FR

Key dates

• Filing date: Mar 6, 2008
• Grant date: Apr 14, 2009
• Expiry date: Mar 6, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F1/005
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention concerns a method for preparing organic-inorganic hybrid materials with controlled porosity and functionality comprising hydrolysis and condensation polymerization of a compound of formula (I): Z-R1—Si(OR)(OR′)(OR″), with an alkaline or alkaline-earth silicate in a mol ratio of (I)/(silicate)=1:9, in the presence of a non-ionic surfactant, to form a mesoporous silica represented by Z-R1—SiO1.5 9 SiO2, whereon is then anchored an organic compound, represented by (Δ)N—H, comprising a —NH— group capable of reacting with Z, to form a functionalized mesoporous silica represented by (Δ)N—R—SiO1.5 9 SiO2, which is optionally complexed with a metallic cation to form an organometallic complex. The invention also concerns the use of these materials to separate gases.