Results 11 to 20 of about 11,512 (298)

Purification and Characterization of High Purity Nano Zirconia by Liquid-Liquid Extraction Using D2EHPA/p-Xylenes

Inorganics, 2022
In this paper, Zr(IV) nitrate solution decomposed from Viet Nam zircon concentrate was the source of zirconium extraction by liquid-liquid extraction (L.L.E). The FT-IR and UV-Vis spectra confirmed the extraction of Zr(IV) by D2EHPA/p-xylenes. There were
Manh Nhuong Chu, Mai Xuan Truong, Thi Hien Lan Nguyen, Tra Huong Do, Thi Tu Anh Duong, Thi Kim Ngan Tran, Thi Cam Quyen Ngo, Thi To Loan Nguyen, Thi Hau Vu, Mai An Pham   +9 more
doaj   +2 more sources

Utilization of alternative fuels and materials in cement kiln towards emissions of benzene, toluene, ethyl-benzene and xylenes (BTEX) [PDF]

MATEC Web of Conferences, 2018
Co-processing in cement industry has benefits for energy conservation and waste recycling. Nevertheless, emissions of benzene, toluene, ethyl-benzene, and xylenes (BTEX) tend to increase compared to a non co-processing kiln. A study was conducted in kiln
Muliane Ulfi, Lestari Puji
doaj   +2 more sources

Analysis of benzene, toluene, ethylbenzene and xylenes in soils by headspace and gas chromatography/flame ionization detector

Semina: Ciências Exatas e Tecnológicas, 2006
The constituents of gasoline: benzene, toluene, ethylbenzene and xylenes (BTEX) are frequently found in soils due to leaks in fuel storage tanks and they present chronic toxicity. In this work it was developed and validated a methodology of BTEX analysis
Jurandir Pereira Pinto, Carmen Luísa Barbosa Guedes, Ilza Lobo, Rafael Augusto Melquiades   +3 more
doaj   +1 more source

Refinement of pore size at sub-angstrom precision in robust metal-organic frameworks for separation of xylenes [PDF]

, 2020
The demand for xylenes is projected to increase over the coming decades. The separation of xylene isomers, particularly p- and m-xylenes, is vital for the production of numerous polymers and materials.
Zhang, Haifei, Ramirez-Cuesta, Anibal J., Li, Xiaolin, Tang, Chiu C, Murray, Claire A., Ramirez-Cuesta, Anibal J, Chiu C. Tang, Bolton, Leslie W., Yongqiang Cheng, Morris, Christopher, Tang, Chiu C., K. Mark Thomas, Yinyong Sun, Yang, Sihai, Da Silva, Ivan, Damian M. Wilary, Morris, Christopher G, Nannan Bai, Schroeder, Martin, Frogley, Mark D., Anibal J. Ramirez-Cuesta, Ivan da Silva, Morris, Christopher G., Shaojun Xu, Schroder, Martin; id_orcid, Martin Schröder, Haifei Zhang, Claire A. Murray, Christopher G. Morris, Xinran Zhang, Mark D. Frogley, Cinque, Gianfelice, Murray, Claire A, Sihai Yang, Xue Han, Zhang, Xinran, Han, Xue, Wilary, Damian M, Thomas, K. Mark, Bai, Nannan, Schröder, Martin, Frogley, Mark D, Gianfelice Cinque, Wilary, Damian M., Thomas, K Mark, Xu, Shaojun, Xiaolin Li, Wang, Juehua, Leslie W. Bolton, Juehua Wang, Tristan Lowe, Lowe, Tristan, Bolton, Leslie W, Cheng, Yongqiang, Sun, Yinyong   +54 more
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Competitive Adsorption of Xylenes at Chemical Equilibrium in Zeolites [PDF]

, 2021
The separation of xylenes is one of the most important processes in the petrochemical industry. In this article, the competitive adsorption from a fluid-phase mixture of xylenes in zeolites is studied.
Zuidema, Erik (author), Vlugt, T.J.H., Dubbeldam, D., Caro Ortiz, S.A. (author), Vlugt, T.J.H. (author), Caro Ortiz, S.A., Caro-Ortiz, S., Zuidema, Erik, Rigutto, Marcello, Rigutto, M., Rigutto, Marcello (author), Dubbeldam, D. (author), Zuidema, E.   +12 more
core   +1 more source

Evaluation of an FIA Operated Amperometric Bacterial Biosensor, Based on Pseudomonas Putida F1 for the Detection of Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX) [PDF]

, 2005
Recently, the development and optimization of a flow injection analysis (FIA) operated bacterial biosensor based on the aerobic catabolism of Pseudomonas putida ML2 was reported in the literature (Lanyon et al. 2004, 2005).
Briganti, F,, Mascini, Marco, Turner, Anthony P. F., Turner, APF,, Marrazza, G,, Scozzafava, A,, Rasinger, Josef D., Briganti, Fabrizio, Marrazza, Giovanna, Scozzafava, Andrea, Mascini, M,, Rasinger, JD,   +11 more
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Transalkylation of Toluene with 1, 2, 4-Trimethylbenzene over

Chemical Engineering Transactions, 2017
The catalytic activity, selectivity to xylenes and time-on-stream stability were investigated in the transalkylation of toluene with 1, 2, 4-trimethylbenzene. The catalytic tests were carried out in a fixed bed reactor over zeolite Beta (Si/Al = 12.5, 75
F. Almulla, V.L. Zholobenko, J.P. Waters, A. Garforth   +3 more
doaj   +1 more source

Viscosity measurements of ortho-xylene, meta-xylene, para-xylene and ethylbenzene [PDF]

The Journal of Chemical Thermodynamics, 2016
Abstract The compressed liquid viscosities of ortho-xylene, meta-xylene, para-xylene and ethylbenzene were measured using a vibrating-wire viscometer at different temperatures and pressures. The measurements were performed over the temperature ranges of (273 to 373) K for o-xylene and m-xylene, (293 to 373) K for p-xylene and (253 to 373) K for ...
Xianyang Meng, Xiaoyun Gu, Jiangtao Wu, Velisa Vesovic   +3 more
openaire   +2 more sources

Monoaromatic compounds in ambient air of various cities: a focus on correlations between the xylenes and ethylbenzene [PDF]

, 2001
Speciation of o-xylene, m-xylene, p-xylene and ethylbenzene was performed by gas chromatography from ambient air and liquid fuel samples collected at various locations in 19 cities in Europe, Asia and South America.
Chen, Tai, Anne Monod, Pasquale Avino, Rowland, F Sherwood, Donald R Blake, Sive, Barkley C, F Sherwood Rowland, Monod, Anne, Tai Chen, Avino, Pasquale, Barkley C Sive, Blake, Donald R   +11 more
core   +1 more source

Selective Oxidation of Xylenes to Toluic Acids [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1997
A mixture of manganese, cobalt and lead para-amino benzoates supported on silica gel is used to catalyze oxidation of xylenes to toluic acids in presence of oxygen or air. Reactions are clean and catalysts can be recovered easily and reused.
Mohammad M. Hashemi, Nasrin Manuchehri
doaj