Results 31 to 40 of about 10,374,020 (228)

Remoção de compostos fenólicos de soluções aquosas utilizando carvão ativado preparado a partir do aguapé (Eichhornia crassipes): estudo cinético e de equilíbrio termodinâmico

open access: yesQuímica Nova, 2014
Activated carbon was produced from the water hyacinth (CAA) by impregnation with ZnCl2 (1:2), followed by pyrolysis at 700 ºC, under N2. CAA was used for the adsorption of phenol, m-cresol and o-cresol from aqueous solutions, using batch adsorption.
Charles S. Barbosa   +3 more
doaj   +1 more source

Electrochemical incineration of cresols: A comparative study between PbO2 and boron-doped diamond anodes [PDF]

open access: yes, 2009
The electrooxidation of aqueous solutions containing 5 mM of o-, m- and p-cresol at pH 4.0 has been investigated using a flow filter-press reactor with a boron-doped diamond (BDD) under galvanostatic electrolysis. All cresols are degraded at similar rate
Arias, Conchita   +4 more
core   +1 more source

Curing and Decomposition Behaviour of Cresol Novolac Based Vinyl Ester Resin

open access: yesChemical Engineering Transactions, 2013
Vinyl ester resins were prepared from o, m, p-cresol epoxy novolac resin and methacrylic acid in the presence of triphenyl phosphine as catalyst and hydroquinone as polymerization inhibitor. The vinyl esterresin samples having acid value of ~ 7 mg of KOH/
S. Jaswal, B. Gaur
doaj   +1 more source

Synthesis of Ag Nanoparticles Decorated Carbon Nanotubes as an Electrochemical Sensor for Determination of Phenolic Compounds in Shale Gas Wastewater

open access: yesInternational Journal of Electrochemical Science, 2021
In this study, silver nanoparticles (Ag NPs) were decorated on carbon nanotubes (CNTs) for electrochemical determination of o-cresol and phenol as phenolic compounds in shale gas wastewater.
Yugao Zhu, Lintao Yang
doaj   +1 more source

A simulated colorimetric INHIBIT logic gate based on 2-(2-thiazolylazo)-p-cresol [PDF]

open access: yes, 2016
2-(2-Thiazolylazo)-p-cresol system achieved distinct optical output signal by controlling pH and mercury-ion complexation. The 2-(2-thiazolylazo)-p-cresol with mercury ion existed as an equilibrium mixture of both an azo and hydrazone tautomeric forms at
Hai-Bo Liu (553615)   +2 more
core   +1 more source

Microbial analysis and enrichment of anaerobic phenol and p-cresol degrading consortia with addition of AQDS

open access: yesWater Science and Technology, 2021
Quinones and humus are ubiquitous in the biosphere and play an important role in the anaerobic biodegradation and biotransformation of organic acids, poisonous compounds as well as inorganic compounds. The impact of humic model compound, anthraquinone-2,
Mingmei Chi   +5 more
doaj   +1 more source

Demethylation of o-Cresol

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1962
クレゾールを水素加圧下に種々の触媒とともに450~500℃ に加熱すると,脱メチルして相当量のフェノールを生成する。実験結果にもっとも大きく影響すると思われる反応温度と反応時間の均一保持に注意してo-クレゾールを脱アルキルして,フェノール収率と,触媒の種類,反応温度および含水率との関係を検討した。用いた触媒は,アルミナまたは軽石を担体とする触媒,シリカ-アルミナ型触媒など19種類で,実験の結果,コバルト-シリカ,活性アルミナおよび酸化バナジウム-軽石が有効であった。フェノールの最高収率は500℃,含水率0で酸化バナジウム- 軽石で処理した場合の43.8wt%(究極収率)であった。また各触媒の反応機構の特性について考察を加えた。
Akira Uchida   +2 more
openaire   +2 more sources

Combined ozonation process and adsorption onto bentonite natural adsorbent for the o-cresol elimination [PDF]

open access: yes, 2021
This work studies the removal of o-cresol from wastewater by using ozonation followed by adsorption onto sodium natural bentonite (Na-Bent). The degradation of o-cresol was followed by UV-Vis.
Nemmich, Said   +8 more
core   +1 more source

Platinum catalyzed hydrodeoxygenation of guaiacol in illumination of cresol production: a density functional theory study [PDF]

open access: yesRoyal Society Open Science, 2017
The unprocessed bio-oil obtained by the pyrolysis of lignocellulosic biomass comprises hundreds of oxy-components which vitiate its quality in terms of low heating value, low stability, low pH, etc.
Anand Mohan Verma, Nanda Kishore
doaj   +1 more source

Extraction of Phenol, o-Cresol, and p-Cresol from Coal Tar: Effect of Temperature and Mixing [PDF]

open access: yes, 2013
Coal tar is a liquid by-product of the process of coal gasification and carbonation. This liquid oil mixture contains various kinds of useful compounds such as phenol, o-cresol, and p-cresol.
Dewi S. Fardhyanti   +3 more
core   +1 more source

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