Synthesis of solketalacetin as a green fuel additive via ketalization of monoacetin with acetone using silica benzyl sulfonic acid as catalyst

Ghaziaskar, Hassan S.; Gorji, Yadollah M.

doi:10.18331/brj2018.5.1.3

Cited by 9 publications

(1 citation statement)

References 12 publications

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“…This shift indicates that the SG (treated) has a higher hydrophilic property, i.e., water strongly adsorbed. Moreover, in the thermogram of SG (Treated) , it was observed that, weight loss region in the temperature range of 200 to 600 o C, can be due to the oxidative decomposition of sulfonic acid group [27,29,30,35].…”

Section: Thermo-gravimetric Analysis (Tga)mentioning

confidence: 99%

Gamma - Radiation-induced reaction of Sulfuric Acid with Silica gel: A Novel method for the formation of sulfonic acid - functionalized silica (SiO2-SO3H)

Sife-Eldeen

Hosni

2020

Arab Journal of Nuclear Sciences and Applications

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The radiation-induced reaction of sulfuric acid with silica gel (SG) was carried out using ɤ-radiation from a 60 Co source at room temperature and, its mechanism were suggested. The formation of sulfonated SG (SiO 2-SO 3 H) was confirmed by IR, thermal analysis (TGA/ DSC). Elemental analysis and morphological structure of treated SG (SG treated) was investigated by scanning electron microscopy (SEM). According to the comparison of the SEM images of SG and SG treated , it seems that irradiation of SG in the presence of sulfuric acid leads to partial segmentation of SG particles. The IR spectra of the treated silica (SG treated) is different from that of the SG. Where, peaks related to the presence of sulfunic group are observed, as well as shifts of SG peaks due to treatment. Moreover, TGA/ DSC of SG treated is different from that of SG. Elemental analysis reveals that particle size of SG affects the S/O % value, where SG treated with >0.16mm-0.2mm particle size has the maximum value. Also, S/O% value, of >0.16mm-0.2mm SG particle size, increased, linearly, with absorbed dose up to 80 kGy and then decresed at higher doses.

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Section: Thermo-gravimetric Analysis (Tga)mentioning

confidence: 99%