Microwave-assisted hydrolysis of nitroglycerin (NG) under mild alkaline conditions: New insight into the degradation pathway

Halasz, Annamaria; Thiboutot, Sonia; Ampleman, Guy; Hawari, Jalal

doi:10.1016/j.chemosphere.2010.01.013

Cited by 20 publications

(22 citation statements)

References 37 publications

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“…Aluminium polycations were rapidly synthesized by microwave assisted hydrolysis of aluminium [15]. Qu et al [16] used high pressure microwaveassisted hydrolysis to hydrolyze the proteins in the root of panax quinquefolius L. Halasz et al [17] found that hydrolytic degradation of nitroglycerin using microwave heating was much higher than its degradation using conventional heating.…”

Section: Introductionmentioning

confidence: 99%

Pressured Microwave-assisted Hydrolysis of Crude Glycyrrhizic Acid for Preparation of Glycyrrhetinic Acid

Wang

Lin

Liu

et al. 2012

Chinese Journal of Chemical Engineering

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A pressured microwave-assisted hydrolysis (PMAH) technique has been developed for hydrolyzing the crude glycyrrhizic acid (GA) extracted from licorice root to prepare glycyrrhetinic acid (GRA). In order to optimize the efficiency of PMAH, several experimental parameters were investigated, including liquid-solid ratio, hydrolysis time, sulfuric acid concentration and hydrolysis temperature. The optimized hydrolysis conditions were as follows: pressured microwave-assisted hydrolysis of crude GA for 21 min (taking 15 min to reach 150 ºC, and holding it for 6 min) at 150 ºC (at a radiation power of 450 W) in 3%-5% sulfuric acid solution with the liquid-solid (ml•g −1 crude GA) ratio of 25︰1. As a result of the considerable saving in time and higher product yields (up to 90%), PMAH was proved more effective than conventional methods.

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Section: Introductionmentioning

confidence: 99%

Pressured Microwave-assisted Hydrolysis of Crude Glycyrrhizic Acid for Preparation of Glycyrrhetinic Acid

Wang

Lin

Liu

et al. 2012

Chinese Journal of Chemical Engineering

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“…Thus, the surface morphology of the PSAC-MW justi ed the relationship between physical surface characteristics data in Table 2 and its surface morphology, where it contributes to high H 2 S adsorption capacity. As reported by (Halasz et al 2010), the use of MW heating method on AC could signi cantly change the amorphous structure of AC, where the cavities were deepened, and the inner structure of the adsorbent was remarkable. The development of surface area and narrow pore structures in the PSAC-MW were clearly noticed and this con rmed the hypothesis, where additional pores have been developed inside the pores (as observed from the surface morphology).…”

Section: Effect Of Surface Morphologymentioning

confidence: 73%

The Influence of Microwave Irradiation on Physicochemical Characteristics of Nitrogen-Enriched Carbon and Its Performance in Biogas Desulfurization

Nor

Chung

Mohamed

2021

Preprint

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In this work, palm shell activated carbon (PSAC) was functionalized with nitrogen groups via urea impregnation, followed by the synthesis of microwave (MW) and conventional heating (TH) at temperature of 950 °C, 500 ml/min of N2 flow rate and 30 minutes of heating time. The effects of MW and TH heating on the modified PSAC adsorbent were analyzed and compared towards hydrogen sulfide (H2S) removal. The efficiency of H2S removal was calculated based on adsorption capacity of the adsorbent samples. Nitrogen-functionalized PSAC that was synthesized via MW heating (PSAC-MW) has shown better performance with adsorption capacity of 356.94 mg/g. The chemical and physical characteristics of all adsorbent samples were studied and analyzed by using CHNS elemental analysis, N2 adsorption-desorption analysis, SEM, TGA and FTIR analysis. The adsorbent sample that was synthesized via MW heating showed significant characteristics, such as high surface area with sponge-like structure, in which there are additional pores developed inside the existing pores. Instead of that, there was an observation on ‘hot spot’ appearance during the MW heating process, which is believed to be responsible for the development of physical and chemical characteristics of the PSAC-MW adsorbent. These characteristics indirectly contribute to the high removal of H2S.

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“…The evaporation of VPs molecules under MW irradiation is the main reason for the effective treatment of WW containing volatile/semivolatile pollutants [64,74,75].…”

Section: Mw Irradiation Alonementioning

confidence: 99%

Study and application status of microwave in organic wastewater treatment – A review

Wang

2016

Chemical Engineering Journal

149

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Microwave-assisted hydrolysis of nitroglycerin (NG) under mild alkaline conditions: New insight into the degradation pathway

Cited by 20 publications

References 37 publications

Pressured Microwave-assisted Hydrolysis of Crude Glycyrrhizic Acid for Preparation of Glycyrrhetinic Acid

Pressured Microwave-assisted Hydrolysis of Crude Glycyrrhizic Acid for Preparation of Glycyrrhetinic Acid

The Influence of Microwave Irradiation on Physicochemical Characteristics of Nitrogen-Enriched Carbon and Its Performance in Biogas Desulfurization

Study and application status of microwave in organic wastewater treatment – A review

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