Matches in SemOpenAlex for { <https://semopenalex.org/work/W2895766421> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W2895766421 abstract "Solid acid catalysts SO42-/SiO2-TiO2 with different SiO2/TiO2 ratios and calcined at different temperatures were prepared by mechanical mixing and impregnation methods. The catalysts were used for esterification of ethanol and acetic acid. SO42-/40 % SiO2-TiO2 prepared by mechanical mixing and calcination at 400 degrees C exhibited the highest activity, and the acetic acid conversion was nearly 100 % in partial reflux rectifying esterification and up to 84% in total reflux esterification, which was close to the chemical equilibrium composition. X-ray diffraction patterns indicated that SiO2 inhibited the excessive formation of titanium oxide sulfate. The combination of tetragonal crystal anatase TiO2, orthorhombic crystal titanium oxide sulfate, and cubic crystal titanium with high surface area SiO2 ensured the high activity of the catalysts. Infrared spectra showed that the addition of SiO2 helped the formation of Ti-O-Si linkage which enhanced the strong bonding of SO42- with the catalyst surface. The sulfate species bonded were in bidentately chelating and covalent sulfate structures. Thermogravimetric-differential scanning calorimetry proved that SO42- was hardly removed with the addition of SiO2 and the temperature for transformation of anatase to rutile was lowered." @default.
- W2895766421 created "2018-10-12" @default.
- W2895766421 creator A5005727893 @default.
- W2895766421 creator A5032616688 @default.
- W2895766421 creator A5074504754 @default.
- W2895766421 creator A5086706793 @default.
- W2895766421 date "2006-11-01" @default.
- W2895766421 modified "2023-09-26" @default.
- W2895766421 title "Preparation of solid acid SO42-/SiO2-TiO2 and its catalytic activity for esterification" @default.
- W2895766421 hasPublicationYear "2006" @default.
- W2895766421 type Work @default.
- W2895766421 sameAs 2895766421 @default.
- W2895766421 citedByCount "0" @default.
- W2895766421 crossrefType "journal-article" @default.
- W2895766421 hasAuthorship W2895766421A5005727893 @default.
- W2895766421 hasAuthorship W2895766421A5032616688 @default.
- W2895766421 hasAuthorship W2895766421A5074504754 @default.
- W2895766421 hasAuthorship W2895766421A5086706793 @default.
- W2895766421 hasConcept C115624301 @default.
- W2895766421 hasConcept C121332964 @default.
- W2895766421 hasConcept C13965031 @default.
- W2895766421 hasConcept C161790260 @default.
- W2895766421 hasConcept C170751736 @default.
- W2895766421 hasConcept C178790620 @default.
- W2895766421 hasConcept C179104552 @default.
- W2895766421 hasConcept C185592680 @default.
- W2895766421 hasConcept C2776673659 @default.
- W2895766421 hasConcept C2777402863 @default.
- W2895766421 hasConcept C2778343803 @default.
- W2895766421 hasConcept C2779851234 @default.
- W2895766421 hasConcept C39519442 @default.
- W2895766421 hasConcept C506065880 @default.
- W2895766421 hasConcept C60100273 @default.
- W2895766421 hasConcept C65165184 @default.
- W2895766421 hasConcept C7082614 @default.
- W2895766421 hasConcept C97355855 @default.
- W2895766421 hasConceptScore W2895766421C115624301 @default.
- W2895766421 hasConceptScore W2895766421C121332964 @default.
- W2895766421 hasConceptScore W2895766421C13965031 @default.
- W2895766421 hasConceptScore W2895766421C161790260 @default.
- W2895766421 hasConceptScore W2895766421C170751736 @default.
- W2895766421 hasConceptScore W2895766421C178790620 @default.
- W2895766421 hasConceptScore W2895766421C179104552 @default.
- W2895766421 hasConceptScore W2895766421C185592680 @default.
- W2895766421 hasConceptScore W2895766421C2776673659 @default.
- W2895766421 hasConceptScore W2895766421C2777402863 @default.
- W2895766421 hasConceptScore W2895766421C2778343803 @default.
- W2895766421 hasConceptScore W2895766421C2779851234 @default.
- W2895766421 hasConceptScore W2895766421C39519442 @default.
- W2895766421 hasConceptScore W2895766421C506065880 @default.
- W2895766421 hasConceptScore W2895766421C60100273 @default.
- W2895766421 hasConceptScore W2895766421C65165184 @default.
- W2895766421 hasConceptScore W2895766421C7082614 @default.
- W2895766421 hasConceptScore W2895766421C97355855 @default.
- W2895766421 hasIssue "11" @default.
- W2895766421 hasLocation W28957664211 @default.
- W2895766421 hasOpenAccess W2895766421 @default.
- W2895766421 hasPrimaryLocation W28957664211 @default.
- W2895766421 hasRelatedWork W2184527990 @default.
- W2895766421 hasRelatedWork W2244595701 @default.
- W2895766421 hasRelatedWork W2353317930 @default.
- W2895766421 hasRelatedWork W2353476179 @default.
- W2895766421 hasRelatedWork W2354080777 @default.
- W2895766421 hasRelatedWork W2355139172 @default.
- W2895766421 hasRelatedWork W2356003196 @default.
- W2895766421 hasRelatedWork W2360553419 @default.
- W2895766421 hasRelatedWork W2360829751 @default.
- W2895766421 hasRelatedWork W2372749576 @default.
- W2895766421 hasRelatedWork W2379925312 @default.
- W2895766421 hasRelatedWork W2381212334 @default.
- W2895766421 hasRelatedWork W2384145152 @default.
- W2895766421 hasRelatedWork W2386894262 @default.
- W2895766421 hasRelatedWork W2389358362 @default.
- W2895766421 hasRelatedWork W2531272504 @default.
- W2895766421 hasRelatedWork W2802338344 @default.
- W2895766421 hasRelatedWork W2886751736 @default.
- W2895766421 hasRelatedWork W2981479507 @default.
- W2895766421 hasRelatedWork W3023271609 @default.
- W2895766421 hasVolume "27" @default.
- W2895766421 isParatext "false" @default.
- W2895766421 isRetracted "false" @default.
- W2895766421 magId "2895766421" @default.
- W2895766421 workType "article" @default.