De moralitate dicti Salvatoris Matth. V:comm. 22. sectio moralis

Invocatio: [hepreaa].

De prunis, in caput inimici colligendis, occasione verborum Proverb. XXV: 22 & Epist. ad Roman. XII: 20 occurrentium

Invocatio: I.N.D.

Iodeto de potássio suportado em peneiras moleculares mesoporosas (SBA-15 e MCM-41) como catalisador básico para síntese de biodiesel

Iodide potassium incorporated on mesoporous molecular sieves (SBA-15 and MCM-41) was used as heterogeneous catalysts in the transesterification of sunflower oil under different conditions of reaction time and ratio catalyst/oil (w/w). The results have showed that the system supported in SBA-15 has been more active than the supported in MCM-41, promoting a conversion to methyl esters of 84.98%.

Hidrólise de celulose por catalisadores mesoestruturados NiO-MCM-41 e MoO3-MCM-41

This study was carried out to synthesize, characterize and evaluate the application of mesoestruturated catalysts MCM-41, 5%MoO3-MCM-41 and 5%NiO-MCM-41 in the hydrolysis of microcrystalline cellulose. XRD results indicate that the phase of mesoporous MCM-41 was obtained and that the introduction of metal oxides did not affect this mesoporous phase. About the heterogeneous hydrolysis reaction, it was observed that the increase in temperature results in a higher concentration of glucose and the catalyst 5%MoO3-MCM-41 provides the highest concentrations of glucose.

Missä on poetiikan arki? : : Arjen poetiikka -seminaari 22.8.2008, Helsinki

Ajankohtaista

Sukupuolinäkökulmia vuoden kiertoon liittyviin rituaaleihin : : The ritual year and gender, 22.-26.6.2008, Cork, Irlanti

Ajankohtaista

Síntese do material mesoporoso MCM-41 usando esponja de água-doce como fonte de sílica

Fresh water sponge was used as a silica source for the synthesis of MCM-41 via the hydrothermal process. The silica was extracted from the sponge by washing with nitric acid and piranha solution. Synthesis of MCM-41 was performed at 100 °C for 5 days and the procedure was optimized, with modifications made to the leaching temperature of the silica and the synthesis of mesoporous material, which was characterized by XRD, FT-IR, SEM and adsorption of N2. The optimal result was achieved at a temperature of 135 °C for 3 days, showing ordered mesoporous material with a surface area of 1080 m² g-1.

Influence of chloride-mediated oxidation on the electrochemical degradation of the direct black 22 dye using boron-doped diamond and β-PbO2 anodes

The Direct Black 22 dye was electrooxidized at 30 mA cm-2 in a flow cell using a BDD or β-PbO2 anode, varying pH (3, 7, 11), temperature (10, 25, 45 °C), and [NaCl] (0 or 1.5 g L-1). In the presence of NaCl, decolorization rates were similar for all conditions investigated, but much higher than predicted through a theoretical model assuming mass-transport control; similar behavior was observed for COD removal (at pH 7, 25 °C), independently of the anode. With no NaCl, COD removals were also higher than predicted with a theoretical model, which suggests the existence of distinct dye degradation pathways.

DESENVOLVIMENTO DE MATERIAIS HÍBRIDOS MICRO-MESOPOROSOS DO TIPO ZSM-12/MCM-41

Micro-mesoporous hybrid materials of ZSM-12/MCM-41 type with different micro- and mesoporosity contributions were prepared by a procedure that uses the desilication of the zeolite in an alkaline medium, followed by recrystallization onto the mesostructure, where the zeolite is used as the silica source in the formation of mesoporous phase. The materials were characterized by X-ray diffraction, nitrogen adsorption-desorption at 77 K, scanning electron microscopy and thermal analysis. The results showed that the methodology utilized is efficient for obtaining hybrid materials of ZSM-12/MCM-41 type with optimized micro-and mesoporosity.

Gutenberg 22:1895

Gutenberg-lehti ilmestyi vuosina 1893-1915. Se oli perustettu ammattilehdeksi ja yhdyssiteeksi Suomen kirjanpainajille sekä äänenkannattajaksi Suomen kirjaltajaliitolle.

Gutenberg 22:1896

Gutenberg-lehti ilmestyi vuosina 1893-1915. Se oli perustettu ammattilehdeksi ja yhdyssiteeksi Suomen kirjanpainajille sekä äänenkannattajaksi Suomen kirjaltajaliitolle.

Gutenberg 1898:22

Gutenberg-lehti ilmestyi vuosina 1893-1915. Se oli perustettu ammattilehdeksi ja yhdyssiteeksi Suomen kirjanpainajille sekä äänenkannattajaksi Suomen kirjaltajaliitolle.

Lasten suometar : lisälehti Suomettarelle 22:1856

Lapsille tarkoitettu lisälehti Suometar-sanomalehteen.

Lasten suometar : lisälehti Suomettarelle 22:1857

Lapsille tarkoitettu lisälehti Suometar-sanomalehteen.

Nattvarden op. 22

Ruotsinkielinen radio-ohjelma, joka käsittelee Rautavaaran teosta Nattvarden, musiikkinäyttein.