Results 41 to 50 of about 356,861 (275)

The use of small angle neutron scattering with contrast matching and variable adsorbate partial pressures in the study of porosity in activated carbons [PDF]

, 2012
The porosity of a typical activated carbon is investigated with small angle neutron scattering (SANS), using the contrast matching technique, by changing the hydrogen/deuterium content of the absorbed liquid (toluene) to extract the carbon density at ...
Bale, Benham, Bering, Broekhoff, Broseta, Bunde, Calo, D. Wilkinson, D.K. Ross, Diduszko, Dubinin, Freltoft, Gaines, H. Sharrock, Halsey, He, Higgins, Jeffrey, King, Li, Malbrunot, Mandelbrot, Mascotto, McNicholas, Mergia, Neimark, Pfeifer, Pfeifer, Porod, Ross, S.M. King, T.A. Ryan, Wignall, Winter, Z. Mileeva   +34 more
core   +2 more sources

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Toluene removal by oxidation reaction in spray wet scrubber: experimental, modeling and optimization [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2006
Toluene, an important volatile organic compound (VOC), is used in many kinds of industries, such as painting, printing, coating, and petrochemical industries.
Roumporn Nikom, Juntima Chungsiriporn, Charun Bunyakan   +2 more
doaj  

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

Advanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov, Eldar Salpagarov, Anhelina Mospan, Till Manon Jannis Stadtmüller, Thomas Schemmel, Christos Georgios Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Are biogenic emissions a significant source of summertime atmospheric toluene in the rural Northeastern United States? [PDF]

, 2009
Summertime atmospheric toluene enhancements at Thompson Farm in the rural northeastern United States were unexpected and resulted in a toluene/benzene seasonal pattern that was distinctly different from that of other anthropogenic volatile organic ...
Ambrose, Jesse L., Frinak, E. K., Haase, Karl B., Mao, Huiting, Russo, Rachel S., Sive, Barkley C., Talbot, Robert W., Varner, Ruth K., White, Marguerite L., Wingenter, Oliver W., Zhou, Yong   +10 more
core   +1 more source

Study of synthesis of 2-(2-alkoxyphenyl)-1H-imidazoles. Comparison of oxidative aromatization reactions of imidazolines [PDF]

, 2006
The reaction of methyl salicylate with ethane-1,2-diamine has been used to prepare 2-(2-hydroxyphenyl)-1H-imidazoline. This compound was alkylated with alkyl halides to give five new 2-(2-alkoxyphenyl)-1H-imidazolines (alkyl = propyl, isopropyl, isobutyl,
Handlíř, Karel, Lišková, Vlasta, Ludwig, Miroslav, Pařík, Patrik, Šenauerová, Sylva   +4 more
core   +2 more sources

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Ability of kaolin clays in Adsorption of Toluene 0-Nitro Toluene and 2,4-Dinitro Toluene Part 1

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
This  study was concerned with the adsorption of Toluene ,0· nitro Toluene and 2,4.dinitro Toluene on The surface of kaolin clay. The  adsorption isotherms  were of types( S3,S4 ) according  to Giles classification and were in a good correlation ...
S.A. Isha, S.A. Hassan, K.G. Jahsim
doaj  

Development of a Smartwatch with Gas and Environmental Sensors for Air Quality Monitoring

Sensors
In recent years, there has been a growing interest in developing portable and personal devices for measuring air quality and surrounding pollutants, partly due to the need for ventilation in the aftermath of COVID-19 situation.
Víctor González, Javier Godoy, Patricia Arroyo, Félix Meléndez, Fernando Díaz, Ángel López, José Ignacio Suárez, Jesús Lozano   +7 more
doaj   +1 more source