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Online since: September 2024
Authors: Omar Cabrera, Oscar Ruíz, Enrique Barreno-Avila, Manolo Córdova
Methanol is highly toxic to humans and finds application in numerous manufacturing processes due to its simple structure, high reactivity, and water solubility [3].
Methodology Structure Carbon Footprint of Products.
Chemistry, "A review of the environmental impact of nanomaterial synthesis using continuous flow hydrothermal synthesis," vol. 12, pp. 57-62, 2018
Online since: June 2012
Authors: Ik Jin Kim, Hyung Tae Kim, Hyun Sung Kim, Wei Zhao, Ashish Pokhrel
In such an approach, a suitable pro-catalyst would be synthesized by wet chemistry techniques that allow for controlling the particle diameter and composition [10].
It was apparent that the XRD profile showed six distinguishable peaks, all of which could be perfectly indexed to orthorhombic α-Fe2O3 (hematite) structure (JCPDS file no., 87-1166) with lattice parameters a = 4.59(3) Å, b = 4.97(3) Å, c = 6.68(5) Å, and Z = 4.
Gournis, and K. triadafyllidis, Formation of carbon nanotubes on iron/cobat-modified zeolites: Effect of zeolite framework/pore structure and method of modification, Stud.
Online since: June 2008
Authors: M. Manuela M. Raposo, Rosa M.F. Batista, Susana P.G. Costa, Michael Belsley, Carlos Lodeiro, E. de Matos Gomes
Phenanthroline derivatives have been extensively used as ligands in both analytical and preparative coordination chemistry [12].
The structures of the new phenanthrolines 3 were unambiguously confirmed by their analytical and spectral data (Table 1).
The position of this band was strongly influenced by the structure of the compounds, for example by the length of the π conjugated bridge and also by the electronic nature of the groups, (H or methoxy), that substituted the oligothienyl moiety at the imidazo-phenanthroline system (Table 1).
Online since: January 2010
Authors: Jee Wook Lee, Takayoshi Nakano, Keita Kawahara
This problem has stimulated research for other aspects of bone composition and structure that contribute to bone fragility.
Elliott: Structure and Chemistry of the Apatites and Other Calcium Orthophosphates (Elsevier Science B.
Online since: July 2012
Authors: Xin Hua Zhao, Guang Yu Zhou
Based on the phenomenon in Fig. 2, it is can be supposed that THM formers may be simple-in-structure[15]and relatively reactive with +1-valent halogens, thus increasing ammonia has a limited impact on THMs formation.
Thus, the ozonation process actually destroyed the DBP-formation structures in DOM and weakened DBP formation risk of chlorinated reclaimed water radically.
Jenkins: Water Chemistry, John Wiley Publishing, New York (1980)
Online since: April 2012
Authors: J. Chêne, L. Moli-Sanchez, F. Martin, E. Leunis, M. Wery
A fully martensitic structure is obtained in all treatments; iron carbides (Fe3C) enriched with chromium, molybdenum and manganese are found in the materials tempered at 540ºC and 680ºC.
This result is consistent with previous work [1] that showed the same behavior for tempered martensitic structures.
Montella, J. of Electroanalytical Chemistry, vol. 465, (1999), p. 37-50
Online since: July 2025
Authors: Wiji Utami, Intan Noviarni, Fahmi Rizal, Nabila Risa Primarani
Lead Removal Using Biosorbent from Sulcospira testudinaria Shells Wiji Utami1,a*, Intan Noviarni2,b, Fahmi Rizal3,c and Nabila Risa Primarani4,d 1,2,3Chemistry Department, Science and Technology Faculty, UIN Sulthan Thaha Saifuddin Jambi, 36361, Indonesia 4Laboratory of Chemistry, Science and Technology Faculty, UIN Sulthan Thaha Saifuddin Jambi, 36361, Indonesia a,*wijiutami@uinjambi.ac.id, bintannoviarni@uinjambi.ac.id, cfahmirizal4455@gmail, dcomnabilarisa@uinjambi.ac.id Keywords: adsorption efficiency, biosorbent, lead removal, Sulcospira testudinaria Abstract.
Furthermore, the Bruker d2 Phaser X-ray diffraction (XRD) test in this research aims to determine the crystal structure of the biosorbent [14].
FTIR spectrum of Sulcospira testudinaria shell adsorbent (A) without calcination, (B) calcination 500°C, and (C) calcination 700°C X-ray diffraction Characterization using XRD in this research aims to see the structure and physical properties of the crystal material contained in the biosorbent derived from Sulcospira testudinaria shells.
Online since: December 2013
Authors: Shu Zhong Wang, Chuan Bao Huang, Dong Hai Xu, Xing Ying Tang
Fig. 1 Schematic diagram of the continuous-flow experimental plant. (1) feed tank, (2) high pressure metering pump, (3) homogenizer, (4) check valve, (5) safety valve, (6) pressure gauge, (7) pin valve, (8) preheater, (9) electrical heat wiring, (10) safeguarding structure, (11) thermocouple, (12) explosion valve, (13) reactor, (14) safeguarding structure, (15) electrical heat wiring, (16) cooler, (17) back pressure valve, (18) effluent tank.
Valyashko, in: Aqueous Systems at Elevated Temperatures and Pressures: Physical Chemistry in Water, Steam and Hydrothermal Solutions (Elsevier Ltd., 2004) [7] D.
Online since: November 2013
Authors: Qian Xie, Cheng Tun Qu, Bo Yang, Hui Li, Shao Fu Song
Xinxin Wang [18] used the composting method to deal with the oily sludge, evaluation removal effect of composting treatment of petroleum hydrocarbons in oily sludge, and use method of Biolog and building the 16SrRNA gene clone library to study the characteristics in using carbon source for microbial in the processing and structure of microbial community.
Use of Wastes by Product ion of Road Construction Material s[J] .Chemistry and Technology of Fuels and Oils,2001,37(6):441~443 [9] Wenwu Zhou.Oily Sludge Treatment Technology[J].Oilfield Surface Engineering,1994,13(2)30~35 [10] Chang Chingyuan,,Shie Jelueng,Lin Jyhping,etc..Major Products Obtained from the Pyrolysis of Oil Sludge[J] .Energy Fuels,2000,14(6):1176~1183 [11] Jinlin Li,Guitao Zhuang,Honghai He.Oil Sludge Drying Processing and Comprehensive Utilization Project[J].Water Supply and Drainage,2009,39(3):60~62 [12] Qiaoling Zhang,Zhuan Han,Zhigang Li,etc.The Oily Sludge Catalytic Coking Processing Technology[J].Oil and Gas Field Surface Engineering,2008,27(8):92 [13] Fenge Chen,Xuemi Wang,Zhengwei Bai,etc.Solvent Extraction Treatment of Refinery Sludge[J].Chemical Engineering,2005,33(1):52~55 [14] Kuhlman M I.Green field: Simplified soil washingprocesses for a variety of soils[J].
Oily Sludge Microbial Composting Treatment[J].Xi'an Petroleum University,2011,26(3):86~88 [18] Xinxin Wang,Zhen Han,Zhihui Bai,etc.The Microbial Community Structure of Oily Sludge Composting Treatment[J].Agro-Environment Science,2011,30(7):1413~1421 [19] Hongguang Lu,Famgxian Bian,etc.The Reaserch of Oily Sludge Rofile Control Agent plugging[J].Special Oil and Gas Reservoirs,2003,10(4):73~76 [20] Yu Liu.Oily Sludge Depth Plugging Technology of Daqing Changyuan Oilfield [J].Oil and Gas Field Surface Engineering,2009,28(1):10~11 [21] D•Feng,C•Aldrich.
Online since: April 2014
Authors: Hamid Nikraz, Salim Barbhuiya
For example, it reduces the water demand of concrete and, at the same time, produces a finer paste structure.
According to Cheng et al., 2005, [18], higher GGBS replacement percentage has denser structure and prevents concrete from water penetration.
H. and Wu, J.K., Influence of GGBS on durability and corrosion behaviour of reinforced concrete, Materials Chemistry and Physics, Vol. 93(2-3), 2005, pp. 404-411