Articles with "nonionic surfactants" as a keyword



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Nonionic surfactants enhanced enzymatic hydrolysis of cellulose by reducing cellulase deactivation caused by shear force and air-liquid interface.

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Published in 2018 at "Bioresource technology"

DOI: 10.1016/j.biortech.2017.07.066

Abstract: Effects of nonionic surfactants on enzymatic hydrolysis of Avicel at different agitation rates and solid loadings and the mechanism were studied. Nonionic surfactants couldn't improve the enzymatic hydrolysis efficiency at 0 and 100rpm but could… read more here.

Keywords: liquid interface; air liquid; nonionic surfactants; enzymatic hydrolysis ... See more keywords
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Influence of the nonionic surfactants’ nature on the structures and properties of organo-montmorillonites

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Published in 2017 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"

DOI: 10.1016/j.colsurfa.2017.01.014

Abstract: Abstract Montmorillonite (Mt) was modified with three nonionic surfactants, i.e., Span-80, Span-20 and OP-10. The influence of the structures and properties of nonionic surfactants on the structures and properties of organo-montmorillonite (OMt) was researched. X-ray… read more here.

Keywords: hlb values; properties organo; structures properties; omt ... See more keywords
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Comparing the efficiency of pure and mixed cationic and nonionic surfactants used in enhanced oil recovery by mesoscopic simulations

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Published in 2020 at "Fuel"

DOI: 10.1016/j.fuel.2020.118287

Abstract: Abstract The decrease of the interfacial tension between water and oil by addition of nonionic and cationic surfactants known to be optimal for enhanced oil recovery is studied here using dissipative particle dynamics numerical simulations.… read more here.

Keywords: enhanced oil; interfacial tension; oil recovery; nonionic surfactants ... See more keywords
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Molecular insight into the mechanism of benzene ring in nonionic surfactants on low-rank coal floatability

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Published in 2020 at "Journal of Molecular Liquids"

DOI: 10.1016/j.molliq.2020.112563

Abstract: Abstract In this work, a combined molecular dynamics (MD) simulations and experiments were adopted to study the microscopic mechanism of the benzene ring in nonionic surfactants on low-rank coal (LRC) flotation. Two nonionic surfactants with… read more here.

Keywords: ring nonionic; benzene ring; nonionic surfactants; rank coal ... See more keywords
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Molecular dynamics simulation study of adsorption of anionic–nonionic surfactants at oil/water interfaces

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Published in 2022 at "RSC Advances"

DOI: 10.1039/d2ra04772a

Abstract: Four anionic–nonionic surfactants with the same headgroups and different units of oxygen ethyl (EO) and oxygen propyl (PO) were adopted to investigate the influence on oil/water interfacial tensions in this article. Molecular dynamics (MD) simulations… read more here.

Keywords: oil water; oil; molecular dynamics; nonionic surfactants ... See more keywords
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Investigation of the synergistic effect of nonionic surfactants on emulsion resolution using response surface methodology

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Published in 2022 at "RSC Advances"

DOI: 10.1039/d2ra04816g

Abstract: The production of crude oil is always accompanied by water production, which may create severe separation problems. It is important to understand the stabilization mechanism and parameters contributing to the formation of emulsion, specifically the… read more here.

Keywords: time; methodology; nonionic surfactants; emulsion stability ... See more keywords
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Phase behaviour, structural properties and intermolecular interactions of systems based on substituted thiacalix[4]arene and nonionic surfactants

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Published in 2019 at "Liquid Crystals"

DOI: 10.1080/02678292.2018.1503351

Abstract: ABSTRACT Supramolecular organised materials were prepared from nonionic surfactants and the following macrocyclic ionic liquids: n-tert-butylthiacalix[4]arenes containing quaternary ammonium fragments with amino acid substituents. Tetraethylene glycol monododecyl ether and decadiethylene glycol monododecyl ether were used… read more here.

Keywords: behaviour structural; structural properties; phase behaviour; nonionic surfactants ... See more keywords
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A series of nonionic surfactants for lignite flotation and adsorption performance

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Published in 2018 at "International Journal of Coal Preparation and Utilization"

DOI: 10.1080/19392699.2018.1483353

Abstract: ABSTRACT Nonionic surfactants have been applied to improve the lignite floatability in the flotation process. In this paper, Inner Mongolia lignite was pretreated by three type surfactants, including sorbitan monolaurate, sorbitan monostearate, and sorbitan monooleate,… read more here.

Keywords: surfactants lignite; hydrocarbon chain; flotation; nonionic surfactants ... See more keywords
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Investigation of Some Nonionic Surfactants as Corrosion Inhibitors for Carbon Steel in Sulfuric Acid Medium

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Published in 2017 at "International Journal of Electrochemical Science"

DOI: 10.20964/2017.08.27

Abstract: Four nonionic surfactants have been investigated as corrosion inhibitors for carbon steel type OL37 in sulfuric acid solution by electrochemical methods, FT-IR spectroscopy and metallurgical microscopy techniques. The influence of inhibitor concentration on the corrosion… read more here.

Keywords: inhibitors carbon; corrosion inhibitors; carbon steel; corrosion ... See more keywords
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SYNTHESIS AND EVALUATION OF A NOVEL SERIES OF NONIONIC SURFACTANTS DERIVED FROM ITACONIC ACID ESTERS AS BIODEGRADABLE CORROSION INHIBITORS FOR ALUMINUM IN ACIDIC MEDIUM.

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Published in 2017 at "International Journal of Approximate Reasoning"

DOI: 10.21474/ijar01/5798

Abstract: Manal El Hefnawy 1 , Abd El Menam Eissa 2 and Mohamed Deef Allah 1 . 1. Chemistry Department, Faculty of Engineering, Benha University, Benha, Egypt. 2. Chemistry Department, Faculty of Science, Benha University, Shoubra,… read more here.

Keywords: novel series; evaluation novel; chemistry; nonionic surfactants ... See more keywords
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Surfactant-Enhanced Solubilization of Chlorinated Organic Compounds Contained in DNAPL from Lindane Waste: Effect of Surfactant Type and pH

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Published in 2020 at "International Journal of Environmental Research and Public Health"

DOI: 10.3390/ijerph17124494

Abstract: Application of surfactants in the remediation of polluted sites with dense nonaqueous phase liquid (DNAPL) still requires knowledge of partitioning between surfactants and pollutants in the organic and aqueous phases and the time necessary to… read more here.

Keywords: organic compounds; solubilization; nonionic surfactants; chlorinated organic ... See more keywords