National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Qspr Models for The Prediction of Octanol/water Partition Coefficient of Organophosphorous Insecticides156315742944410.21608/ejchem.2019.4976.1446ENRanaAmiriEnvironmental and Food Safety Laboratory, Badji Mokhtar University, Annaba
23000, Algeria.DjelloulMessadiEnvironmental and Food Safety Laboratory, Badji Mokhtar University, Annaba 23000, Algeria.AmelBouakkadiaDepartement of chemistry Abbes Laghrour University, Khenchela 1252, AlgeriaLeilaLouriciDepartement of chemistry Chadli Bendjedid University, Eltaref 36000, Algeria.Journal Article20180906This study aims to predict the octanol/water partition coefficient (Kow) of 43 organophosphorous insecticides. Quantitative structure- property relationship analysis was performed on a series of 43 insecticides using Multiple Linear Regression (MLR) and Support Vector Machines (SVM) methods, which correlate octanol- water partition coefficient (Kow) values of these chemicals to their structural descriptors. At first, the data set was separated with duplex algorithm into a training set (22 chemicals) and a test set (21 chemicals) for statistical external validation. The IX'XI ratio for the two data sets was 0.9839 indicating that the volumes of the regions covered by the two data sets were approximately the same. Model with four descriptors was developed using as independent variables theoretical descriptors derived from DRAGON software when applying GA (Genetic Algorithm)- VSS (Variable Subset Selection) procedure . The values of statistical parameters R2, Q2ext, SDEPext and SDEC for MLR and SVM model were: (93.57%; 92.73%; 0.493; 0.463), (98.60%; 96.30%; 0.504; 0.316); obtained for the two approaches are very similar, which confirm that our four parameters model is stable, robust and significant.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Effect of Cadmium Sulfide Quantum Dots Prepared by Chemical Bath Deposition Technique on the Performance of Solar Cell157515852888110.21608/ejchem.2019.6509.1547ENZeinabAbdel HamidCentral metallurgical research and development instituteHanaaHassanFaculty of science, Cairo universityM.HusseinMouradNational Institute of Laser Enhanced Sciences, Engineering Department ,Cairo University,Egypt.ManalHassanCentral Metallurgical Research and Development InstituteSafaaAnwarFaculty of science, Cairo universityJournal Article20181204Quantum dots are very tiny semiconductor particles used in solar cells; their optical and electronic properties differ from those of macro particles. They could improve the performance of solar cells if they are prepared in the suitable size. In this work, cadmium sulfide (CdS) quantum dot (QD) thin films were prepared on transparent conductive fluorine-doped tin oxide substrates. The formation and deposition of CdS QDs were optimized using the chemical bath deposition method under varied operating conditions (precursor concentration, and temperature). Chemical bath deposition is an effective method for the deposition of CdS on porous TiO2 films as QDs. The structural, morphological, and optical properties of the prepared CdS thin films were studied using X-ray diffraction, field-emission scanning electron microscopy, Raman spectroscopy and UV-Vis-near infrared spectroscopy. The particle size of the CdS QDs was calculated to be 3–7 nm from the observed X-ray diffraction pattern. The band gap was blue shifted in the UV-Vis absorption spectrum compared with that of bulk CdS, confirming the formation of CdS QDs.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Reduction of Cu+2 and Ni+2 Ions from Wastewater Using Mesoporous Adsorbent: Effect of Treated Wastewater on Corrosion Behavior of Steel Pipelines158716022888310.21608/ejchem.2019.7967.1627ENMohamedShehataPhysical chemistry department, electrochemistyr and corrosion lab.,
National research center Dokki, Cairo EgyptShaymaaEl-ShafeyPhysical chemistry department, Surface and Catalysis lab., National Research Center, Dokki, Giza, egypt.Nabila A.AmmarWater Pollution Control Department, National Research Center, Dokki, Cairo, Egypt0000-0003-4117-9900Ashraf MEl-ShamyPhysical chemistry department Electrochemistry lab., National Research Centre, Dokki, Giza, Egypt,0000-0003-3672-509XJournal Article20190205Large amounts of highly heavy metals contaminated wastewater effluents are produced through the metal finishing and electroplating processes. In this study, mesoporous zeolite was prepared from Egyptian bentonite by alkali-hydrothermal method.The prepared zeolite was characterized by XRD technique showing the formation of crystalline phases corresponded to the zeolite structure. The adsorption performance of zeolite toward removal of copper (Cu+2) and nickel (Ni+2) ions was studied in relation to effect of contact time, concentrations of metal ions and the dose of adsorbent. The effect of Cu+2 and Ni+2 ions in treated wastewater on the corrosion behavior of steel pipelines was demonstrated. Elovich, Pseudo-first-order and Pseudo-second order kinetic models were applied. Kinetics models revealed that the adsorption of both Cu+2 and Ni+2on zeolite was controlled by pseudo-second order kinetic and the equilibrium achieved at 90 minutes. Langmuir, Freundlich and Dubinin–Kaganer–Radushkevich isotherms were investigated and the results showed that the adsorption of both cations well-satisfied with Langmuir model. The free energy (E) was 10.66 and 8.772 kJ/mol for the adsorption of Cu+2 and Ni+2 ions, respectively, confirming that the adsorption is a physical process.The effect of Cu+2 and Ni+2 on the corrosion behavior of steel pipelines revealed that the corrosion resistance of steel for treated anduntreated water is almost the same.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Synthesis of Some Triazole Schiff Base Derivatives and Their Metal Complexes under Microwave Irradiation and Evaluation of Their Corrosion Inhibition and Biological Activity160316242978310.21608/ejchem.2019.10834.1699ENAliHassanchemisty department, faculty of science, alazhar university0000-0001-9509-9266Bassem HussenHeakalResearch Laboratory, Cairo Oil Refining Company, Mostorod, Qaliobia, EgyptAhmedYounisNational Research CentreMahmoud Abd El-MonsfBedairInorganic Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt.ZaghloulEl - Billypolymer department manger, Egyptian organization for standardization and qualityMoataz Mohamed AbdelsalamMohamedInorganic Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt.Journal Article20190320Two triazole Schiff base derivatives N-(furan-2-ylmethylene)-1H-1,2,4-triazole-3-amine (FTA), N-(thiophene-2-ylmethylene)-1H-1,2,4-triazole-3-amine (TTA) and their metal complexes Co(II), Ni(II), Cu(II) and Zn(II) were synthesized under microwave irradiation. The structure of these compounds has been investigated by using elemental analysis, FT-IR, UV-Vis spectrometric methods, magnetic susceptibility, mass spectra, NMR, ESR and thermal studies. The antimicrobial activities of the prepared ligands and their respective Zn (II) complexes were studied against the bacterial (positive and negative) grams and fungal strains. The inhibitive characteristics of Schiff base ligands on C-steel corrosion in hydrochloric acid were studied using weight loss measurements. The prepared Schiff base derivatives show high inhibition efficiency and their adsorption surface was found to obey Langmuir model. The data also revealed that FTA is less than TTA in terms of inhibiting efficiency.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Evaluation of Ag as an Active Direct Ethanol Fuel Cell Electrode Catalyst Prepared by Pulsed Current Electrodeposition Technique162516362907210.21608/ejchem.2019.7196.1591ENNabilNassifCMRDIZeinabAbdel HamidCentral metallurgical research and development instituteIbrahim MohamedGhayadCMRDIYasserKamalMonifiaa UniversityAmalIsmailMonifiaa UniversityJournal Article20190113Pulsed current electrodeposition of silver on graphite from non-cyanide bath has been employed. The influence of pulse parameters on electrocatalytic activity of Ag catalyst for ethanol oxidation in alkaline media have been evaluated by field emission scanning electron microscopy (FESEM), X- ray diffraction (XRD) and cyclic voltammetry (CV). The results reveal that the optimum condition can be obtained at 60 % duty cycle, 50 mAcm-2 average current density, 10 min. deposition time, and 10 Hz pulse frequency. The electrocatalytic activity and stability of Ag/C electrode prepared, at corresponding optimum condition, by pulse current (PC) and direct current (DC) electrodeposition for ethanol oxidation in alkaline media have been compared. The results illustrate that PC silver catalyst exhibits higher oxidation peak current density, higher surface coverage, higher poisoning tolerance as well as smaller charge transfer resistance, in alkaline ethanol solution, than that prepared by DC technique and thus can be used as an active anode material for direct ethanol fuel cell at a reduced cost.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Cultivation of Canola (Brassica napus L.) Using Composted Agro-industrial Waste 163716472888210.21608/ejchem.2019.7256.1592ENHanaa E.AhmedDepartment of Botany and Microbiology, Faculty of Science, University of Cairo, Giza 12613, EgyptDepartment of Biology, Faculty of Science, University of Jeddah,21589, Saudi Arabia0000-0001-6876-5147Mohamed E. M.AliDepartment of Water Pollution Research, National Research Center, Dokki,12622, EgyptNabila S.AmmarDepartment of Water Pollution Research, National Research Center, Dokki,12622, Egypt0000-0003-4117-9900Hanan S.IbrahimDepartment of Water Pollution Research, National Research Center, Dokki,12622, Egypt0000-0001-6439-8271Journal Article20190114Composting is an effective procedure for recycling of agricultural and industrial waste and converting into valuable material. This work focuses on conversion of solid waste of tobacco manufacturing to compost which is useful for agricultural application. As well the compost from tobacco waste was characterized using different techniques and employed as soil amendment for improving its properties. The produced compost showed variation in characteristics; pH, total phosphorus, total organic content, total nitrogen and C/N ratio with time of composting regarding to original waste. Noticeably, total organic was decreased by 35 % and C/N ratio was improved by decreasing from 26.6 to 13.48 after 75 days of composting process. Also, the Potential Toxic Elements (PTEs) in the composted material had been measured as it is a key to use of mature compost for land application. A mixture of sand and tobacco waste compost has a 46.61% of water holding capacity, while it was 25 % for sand alone. Canola seeds grow well in a mixture of sand and tobacco waste compost in referring to some physiological and morphological parameters. Therefore, tobacco compost may be used as a soil amendment for cultivation land. Conclusively, the waste was converted to wealth, and produced compost valorized added value of waste.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Nanocomposite of TiO2 @ Ni- or Co-doped Graphene Oxide for Efficient Photocatalytic Water Splitting164916582888410.21608/ejchem.2019.9722.1648ENMohammad M.AlmutairiMinistry of Electricity and Water, Kuwait, Kuwait, P.O.12010Chemical Engineering Department, Minia University, El-Minia, 61111, Egypt.Ebraheim E.EbraheimChemical Engineering Department, Minia University, El-Minia, 61111, Egypt.Mohamed S.MahmoudChemical Engineering Department, Minia University, El-Minia, 61111, Egypt.College of Applied Science, Department of Engineering, Suhar, 331, OmanMohamed S.AtreesNuclear Materials Authority, Maadi Road, Elqattamia, Cairo, Egypt. P.O. 530.0000-0002-8055-477XMohamed E. M.AliWater Pollution Research Department, Environmental Sciences Division, National Research Centre (NRC), 33 El-Behouth St., Dokki, Cairo, Egypt, P.O. 12622.0000-0002-1157-1752Yasser MahmoudKhawassekNuclear Materials Authority, Maadi Road, Elqattamia, Cairo, Egypt. P.O. 530.0000-0002-8758-4330Journal Article20190217Nanocomposites of TiO2@Ni-doped or Co-doped graphene oxide (GO) have been suceesfully prepared and are employed for photocalytic water splitting. TEM images showed doted nanostructure and scattered-appearance of Co, Ni with and TiO2 nanoparticles on GO sheet. The XRD patterns proved the existence of the crystal planes of Ni, Co and TiO2 nanoparticles on GO. Moreover, the absorption spectrum of the prepared samples showed a better percentage of absorption of the visible light upon introducing of NiO aor CoO. EDX analysis results confirmed the presence of Co, C, O, and Ti elements in the sample. Interestingly, both n-TiO2/p-NiO/GO and n-TiO2/p-CoO/GO heterojunctions photocatalyst improved the photo-catalytic activity for water splitting nonetheless with different mechanisms. The n-TiO2/p-NiO/GO photocatalyst showed a higher hydrogen production rate of 0.3 mmole/min/g than that of n-TiO2/p-CoO/GO. The generated e/h pairs in the TiO2 part of the catalyst is kept through the effect of the electric field formed by the p-NiO/n-TiO2 heterojunction while Co presence narrows the bandgap and promotes both hydrogen evolution reactions at the conduction and valence band of heterojunctions.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Analysis of Optical, Electronic and Spectroscopic Properties of (Biopolymer-SiC) Nanocomposites for Electronics Applications165916722897110.21608/ejchem.2019.7154.1590ENAhmedHashimUniversity of BabaylonHayderAbduljalilUniversity of BabylonHindAhmedUniversity of BabylonJournal Article20190111In this paper, studying the effect of increase the number of SiC nanoparticles atoms on the optimized geometrical parameters, electronic and spectroscopic properties of polyvinyl alcohol. The studied structures are (PVA)(43Atom),(PVA-SiC)(35 Atom) and (PVA-SiC)(51Atom) nanocomposites. The optimization parameters included both bonds and angles. The electronic and structural properties included the (energy gap, cohesive energy, ionization potential, electron affinity, chemical hardness, chemical softness, electronegativity, electrophilicity and density of states) as well as spectral properties, which included IR and UV-Visible. This study uses Gaussian 0.9 program with help of Gaussian View 0.5 using density function theory (DFT) with local spin density approximation B3LYP level and6-31Gbasis sets. The results showed that the number of atoms has a direct impact on all the properties of the molecules studied. The increase of number of atoms are caused changes in spectral of (PVA)which include shift in some bonds and change in the intensities. These changes attributed to interactions of nanoparticles (SiC) with (PVA). Also, from Ultra Violet and Visible spectrum observed that absorption increases by increasing the number of atoms, this is due to the excitations of donor level electrons to the conduction band at these energies. The energy gap of the nanocomposites reduce from 6.8568 eV for (PVA) to5.0715 eV for (PVA-SiC)(35Atom) and 4.5330 eV for (PVA-SiC)(51Atom). The total energies decreases with the increase the number of atoms forming the nanocomposites. The results showed that the nanocomposites can be used for different applications such as: solar cells, diodes, transistors, sensors, electronics gates, electronics devices.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Evaluation of Heavy Metals Pollution by Using Pollution Indices in the Soil of Assiut District, Egypt167316832907310.21608/ejchem.2019.9720.1654ENHamed SMekkyGeological Sciences Dept., National Research Centre, Dokki0000-0003-3396-3770EsmatAbou El-AnwarProf. of Geochemistry Geological Sciences Dept., National Research Centre, Dokki, Giza, Egypt.0000-0001-5947-2254Salman A.SalmanGeological Sciences Dept., Inorganic Chemical Industries and Mineral Resources Research Division, National Research Centre0000-0002-2173-0438Ahmed AbdefattahElnazerGeological Sciences Department, National Research Centre,Giza Egypt0000-0002-7338-0935WaelAbdel WahabGeological Sciences Dept., National Research Centre, DokkiAhmed SAsmoayGeological Sciences Department, National Research Centre, Dokki0000-0001-6102-8961Journal Article20190219Assiut District represents an important part of central Nile Valley. It is a complex district containing many big industries, urbanization and agricultural activities. These activities can lead to the pollution of agricultural soil with toxic heavy metals. The aim of this work is the assessment of potential risks of these metals in soils using pollution indices; Enrichment Factor (EF), Index of Geoaccumulation (Igeo), Contamination Factor (CF), Ecological Risk Factor (Er), Degree of Contamination (Cd), Pollution Load Index (PLI) and Potential Ecological Risk Index (PERI). The present study calculated the mentioned indices for eight heavy metals; As, Cd, Co, Cr, Cu, Ni, Pb, and Zn.<br /> Pollution indices calculations revealed that the investigated area can considered generally moderately polluted with the studied heavy metals. The emission of heavy metals from the factories as well as agricultural practices, urban runoff and sewage stations in the zone may be the source of that pollution. Consequently, control methods must be functional to the area adjacent to the factories to diminish the pollution. Finally, the studied cultivated soils showed low pollution than other cultivated soils in Australia, Canada, Germany, Tanzania, Netherlands, USA, as well as other areas in Egypt.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Chemical Characterization of Constituents Isolated from Hamelia patens and Investigating Its Cytotoxic Activity168516972907410.21608/ejchem.2019.10112.1667ENMaii Abdelnaby IsmailMaamounDepartment of Pharmacognosy, National Research Centre, Cairo, Egypt0000-0002-7832-094xSalma AhmedEl SawiDepartment of Pharmacognosy, National Research CentreHemaia MohamedMotaweDepartment of Pharmacognosy, National Research Centre, Cairo, EgyptMostafa IbrahimFekryDepartment of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, EgyptMostafaAbdel KawyDepartment of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, EgyptJournal Article20190302SRB cytotoxicity assay was performed for different extracts of Hamelia patens Jacq. family Rubiaceae; crude flowers (CF), crude leaves (CL), chloroform (Chl.L) and methanol (Me.L) fractions from leaves against liver (HepG-2) and breast (MCF-7) human carcinoma cell lines. Results demonstrated potent cytotoxic action against HEPG-2 for CF, Chl.L and Me.L with IC50 = 47, 30 and 44.4 µg/mL, respectively. On the other hand, CF, CL, Chl.L and Me.L had exerted powerful effect against MCF-7 with IC50 = 23.8, 25.5, 17.7 and 64 µg/mL, respectively. Chromatographic investigation of Me.L , resulted in the isolation and spectroscopic identification of rutin (1), isoquercetin (2) and soyasaponin Bb (3), which is isolated for the first time from the plant leaves and was identified by UPLC/ITMS/MS analysis. Comparative study for using ordinary method versus green methods of extraction was also inspected.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Utilization of Kalapsha Kaolin to Prepare High Purity Alumina169917122934410.21608/ejchem.2019.10211.1670ENSohair TahaAlyChemical Engineering Department, Egyptian Academy for Engineering and Advanced technologyIbrahim AhmedIbrahimMaterial science department, Central Metallurgical Research and Development Institute, Cairo EgyptMagdi FouadAbadirChemical Engineering Department, Faculty of Engineering, Cairo UniversityJournal Article20190303ABSTRACT<br /> Kalabsha kaolin was calcined at 700oC then treated with hydrochloric acid to produce aluminum chloride hexahydrate. The hexahydrate was obtained in crystalline form through injection of hydrogen chloride gas in saturated solution and purified on several steps to obtain alumina of high purity. Acid leaching conditions, namely, acid to kaolin stoichiometric ratio(S), reaction time (t) and reaction temperature (T) were optimized using surface response methodology. A maximum alumina recovery of 83.2% was predicted on using 1.4 stoichiometric acid to solid ratio, a reaction temperature of 104oC and a reaction time of 3 hours. This result was then assessed experimentally. The hexahydrate crystals obtained were subsequently purified in a three stage process to increase their purity to 99.961%. Calcination of these crystals for 4 hours at 1100oC produced highly crystalline alumina with purity 99.9%.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Development of Pilot Scale System for Production of Nylon-6 Fibers Grafted with Polydimethylaminoethylmathacrylate (PDMAEMA) for the Application as Ion Exchange171317232978010.21608/ejchem.2019.6778.1566ENSamy ElsebaieShalabyProteninic &amp; Manmade Fibers Department, Textile Research Division, National Research Centre, Dokki, Cairo, Egypt0000-0003-3148-2877Naser GadAl-BalakocyProteinic &amp; Man made fibers0000-0002-8597-3308SamihaAbo El-OlaProteinic and Man Made Fibres, Textile Research Division, National Research Centre0000-0002-3852-3320MargritaBilyakovaPreparation and finishing of cellulose fibers departmentJournal Article20181220In this work an affective and simple technology for pilot scale production of grafted Nylon-6 fibers with Polydimethylaminoethylmathacrylate (PDMAEMA) for ion exchange application is suggested. This technology consists of the creation of antimicrobial substance (AS) in Nylon-6 fibers followed by grafting with dimethylaminoethylmathacrylate (DMAEMA) using Cu2+-K2S2O8 redox system. Factors affecting the yield of grafted PDMAEMA were investigated and the optimal conditions for grafting process were evaluated. The availability of modified Nylon-6 fibers grafted with PDMAEMA as polymer sorbent for removal of cations as Cu+2, Pb+2 and anions Cr2O7-2, SO4-2 was investigated. The influence of various adsorption parameters on the degree of extraction (R %) and adsorption capacity (SC mg/g) was calculated.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Biopolymers; Definition, Classification and Applications172517372978110.21608/ejchem.2019.6967.1580ENMohamed El SayedHassanCenter of Excellence, Encapsulation &amp; Nano biotechnology Group, Chemistry of Natural and Microbial Products Department, National Research Center, El Behouth Street, Cairo 12622, Egypt.0000-0001-8317-8637JunBaiCollege of Xinglin, Liaoning University of Traditional Chinese Medicine, Shenyang 110000, P.R. China.De-QiangDouCollege of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, P.R. China.Journal Article20190101During recent years significant advances have been made in using and development of biodegradable polymeric materials for life applications. Degradable polymeric biomaterials are preferred because these materials have specific physical, chemical, biological, biomechanical and degradation properties. Wide ranges of natural or synthetic biopolymers capable of undergoing degradation hydrolytically or enzymatically are being investigated for many applications. This review aimed to provide an overview for the importance of biomaterials, produced or degraded naturally, classification and applications.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901A Copper Oxide Nanoparticle Modified Screen-printed Electrode for Determination of Mirtazapine173917482978210.21608/ejchem.2019.10062.1663ENManalElShalNational Organization for Drug Control and research0000 0003 3581 2255Journal Article20190227Development of a disposable copper oxide nano particles modified screen-printed carbon electrode (CuONP/SPCE) as a quick and convenient method for determination of Mirtazapine (MZ) is studied. It was demonstrated that the nano-copper oxide (CuONP) on the SPCE could significantly enhance the electrochemical oxidation of MZ at pH7. The electrochemical response characteristics of MZ on the modified electrode were investigated by cyclic voltammetry (CV) and differential pulse voltammetry(df). Under the optimized experimental conditions, the analytical results showed linear responses over the range 66.62– 662.25 ng/ml. The detection and quantification limits were 4.49, 13.36 ng/ml, respectively. The results indicate that the suggested sensor is highly suitable for clinical analysis, quality control determination of MZ in pharmaceutical formulations and spiked fluids.National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRTEgyptian Journal of Chemistry0449-228562920190901Utilization of Binary Mixtures of Different Solvents for Aromatics Extraction from a Petroleum Wax Distillate Feedstock174917592978410.21608/ejchem.2019.11014.1705ENHamida YossefMostafaEgyptian Petroleum InstituteAhmedEl NaggarEgyptian Petroleum Research Institute (EPRI)0000-0003-3798-0666EbaaElshamyEgyptian Petroleum Research Institute, Nasr CityAmalFaragEgyptian Petroleum Research InstituteAhmedHashemFaculty of Science, Ain Shams UniversityJournal Article20190322Most of petroleum fractions contain detectable contents of aromatic structures that include different categories. Aromatics in general and condensed aromatics particularly are of strong hazardous impact due to their toxic and carcinogenic nature. Therefore, the disposal of such compounds from the various petroleum products is powerfully advised. This research work introduces the use of various binary solvents mixtures for removal of aromatics from a petroleum wax distillate fraction. N-methyl pyrrolidone (NMP) was individually used at the first place as a main extracting agent. Significant reduction of aromatics content was noticed however not limited to the condensed aromatic structures. Binary mixtures made of NMP and different percentages of water, ethylene glycol or ethanol amine (as anti-solvent) were then utilized to improve the selectivity of removal toward condensed aromatics. Noticeable variations in the contents of di- and poly aromatics with corresponding increases in the mono-aromatic content through the use of the different binary mixtures could be attained. Optimization of the most suitable composition for each of the binary mixtures was then determined, based on the characteristics of the gained products from the extraction processes.