Light sensitivity of phenol hydroxylation with TS-1

Klaewkla, Raweewan; Rirksomboon, Thirasak; Kulprathipanja, Santi; Németh, László; Rangsunvigit, Pramoch

doi:10.1016/j.catcom.2005.10.015

Cited by 16 publications

(5 citation statements)

References 12 publications

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“…to-catechol ratio increases sharply after fourth hour of reaction. The change trend is similar to the literatures [48,57,58]. Thus, the initial fear that the Sil-1 seeds could lead to a dilution of the titanium content of the prepared TS-1 film and possible nonuniformity and maldistribution of zeolite composition resulting in poorer reaction performance is shown to be unfounded.…”

Section: Seeds and Substratesupporting

confidence: 79%

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Preparation of titanium silicalite-1 catalytic films and application as catalytic membrane reactors

Wang

Zhang

Liu

et al. 2010

Chemical Engineering Journal

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Section: Seeds and Substratesupporting

confidence: 79%

“…There are many reports [48][49][50][51] on the use of TS-1 zeolite as catalyst for phenol hydroxylation reaction to hydroquinone and catechol as shown in the reaction Scheme 1. In this reaction, dihydroxybenzenes and benzoquinone are the desired product and byproduct.…”

Section: Phenol Hydroxylation Reactionmentioning

confidence: 98%

Preparation of titanium silicalite-1 catalytic films and application as catalytic membrane reactors

Wang

Zhang

Liu

et al. 2010

Chemical Engineering Journal

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“…However, due to the nature of the sample in this study and also the high cost of raw materials to perform hydrogen peroxide testing with previous methods, it is not economical, and besides, they have a test error. In this study, to correct the mentioned cases, it was suggested to perform a hydrogen peroxide test in an aqueous solution containing cyclic hydrocarbons using ASTM D-2340 [56]. To do this, 25 ml of isopropyl alcohol was added to two 500 ml Erlenmeyer flakes, each containing several boiling stones and then 1 ml of glacial acetic acid was added to the Erlenmeyer flakes.…”

Section: Removal Of Btexs Using Mcm-41 Catalyst In the Presence Of H2o2mentioning

confidence: 99%

BTEXS Removal From Aqueous Phase by MCM-41 Green Synthesis Using Rice Husk Silica

Heydari

Tabatabaie

Amiri

et al. 2023

IJEE

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Large volumes of contaminated industrial wastewater have caused growing concern among researchers and environmentalists. Benzene, toluene, ethylbenzene, xylene, and styrene (BTEXS) cyclic hydrocarbons in industrial effluents are often completely stable to biodegradation and must be treated before disposal. In this context, using adsorption processes is a potential alternative for treating a wide range of organic pollutants, especially aromatic compounds in industrial wastewater. This study investigated the preparation of MCM-41 from silica; extracted from rice husk ash; MCM-41 was green synthesized to evaluate the effect of mesoporous used in BTEXS removal of an aqueous medium using the Taguchi method. The aqueous solution contains cyclic hydrocarbons was synthetically prepred based on real industrial effluent in concentrations of 50, 100, and 150 mg/l using MCM-41 catalysts, in doses of 0.1, 0.5, and 1g, at different pH values. In the present study, the optimum results obtained by Taguchi method analysis were pH =11, for duration of 60 minutes, the concentration of cyclic hydrocarbon solution BTEXS 100 mg/l, and nanoparticle dose of 0.5 g. The maximum BTEXS removal of 77.36% was achieved by the use of hydrogen peroxide.

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“…Phenol is a valuable organic intermediates in chemical industries related to resin, pharmaceuticals, agrochemicals, nylon and other synthetic fibers [1][2][3] . Nowadays, 90 % of the worldwide production of phenol is based on the cumene process, which constitutes a three-step reaction that has as main advantage the conversion of the two relatively inexpensive starting materials, benzene and propene, into the valuable chemicals phenol.…”

Section: Introductionmentioning

confidence: 99%

Low Temperature Hydroxylation of Benzene to Phenol on Fe/Activated Carbon Catalysts Loaded with Different Types of Second Metal Under Microwave Condition

Liu¹,

Hou²

2014

Asian J. Chem.

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This paper investigated the microwave assisted liquid phase hydroxylation of benzene to phenol with hydrogen peroxide over Fe/activated carbon-based catalysts prepared by impregnated method. Various types of second metal (e.g., Co and Cu) were loaded together with Fe on the activated carbon support and the catalytic performance of the obtained catalysts was compared. It was found that the presence of the second metal can improve the phenol production of the typical Fe/activated carbon catalyst. Various techniques (XRD and BET surface area) were employed to characterize the catalysts. Finally the effects of some operating variables (e.g., reaction time, catalyst amount, H2O2 amount, solvent amount) on the catalytic performance were investigated.

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Light sensitivity of phenol hydroxylation with TS-1

Cited by 16 publications

References 12 publications

Preparation of titanium silicalite-1 catalytic films and application as catalytic membrane reactors

Preparation of titanium silicalite-1 catalytic films and application as catalytic membrane reactors

BTEXS Removal From Aqueous Phase by MCM-41 Green Synthesis Using Rice Husk Silica

Low Temperature Hydroxylation of Benzene to Phenol on Fe/Activated Carbon Catalysts Loaded with Different Types of Second Metal Under Microwave Condition

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