<span style="mso-ansi-language:EN-US" lang="EN-US">Hydroisomerization of long chain saturated hydrocarbon over Pt/SiO₂-Al₂O₃ catalysts </span>

199-202<span style="mso-ansi-language: EN-US" lang="EN-US">Hydroisomerization of hexadecane and the products obtained from hydroprocessing of jatropha oil has been carried out over different silica-alumina supported Platinum catalysts for the reduction of pour point. Amorphous silica-alumina support is found to be suitable for the required conversion and selectivity. Optimum reaction conditions such as platinum loading, silica-alumina ratio and various reaction conditions have been determined. </span

Double metal cyanides as efficient solid acid catalysts for synthesis of β-amino alcohols under solvent-free conditions

A novel application of Fe–Zn double metal cyanide complexes as solid, acid catalysts for regioselective synthesis of &#946;-amino alcohols under solvent-free conditions via ring-opening of epoxides with amines is reported for the first time. The conversion of epoxides to &#946;-amino alcohols is nearly 100%. In the reaction with styrene oxide, regioselective &#946;-amino alcohol formation is higher with aromatic than with aliphatic amines. Strong Lewis acidic Zn2+ ions in the catalyst are probably the active sites in this reaction

Un'altra educazione in costruzione

Il volume raccoglie e discute una selezione di contributi presentati al Secondo Forum Mondiale dell'Educazione, Porto Alegre (2003) e comprende una rassegna di analisi (di politiche internazionali e nazionali) e esperienze (dal software libero all'educazione alla pace) da Belgio, Brasile, Camerun, Francia, India, Italia, Portogallo e Spagna