跳至主要内容

Process for the Synthesis of Ferrate (VI) Alkali Metal Dry

Read  full  paper  at:
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53023#.VLR-j8nQrzE

ABSTRACT
The iron compounds in the oxidation state (VI) have the specific advantage of being powerful oxidants and bactericides. This feature explains their particular interest in the treatment of water. The aim of this work is to prepare Na2FeO4 stable at ambient in order to optimize the key parameters influencing the performance of the oxidation of iron (II) to iron (VI), as well as to monitor its degradation over time. The synthesis of this phase has been carried out by using the dry reaction Na2O2 with Fe2O3 with a temperature of 700°C for a reaction time of 13 hours with a Na/Fe ratio of 4 to make it possible to simplify the synthesis procedure, to minimize the cost and enhance the production of iron (VI) to meet the growing demand of ferrate (VI) for its interest in water treatment. The obtained phase was characterized by UV spectrophotometer by measuring the optical density at a wavelength of 507 nm.
 
Cite this paper
Maghraoui, A. , Zerouale, A. and Ijjaali, M. (2015) Process for the Synthesis of Ferrate (VI) Alkali Metal Dry. Advances in Materials Physics and Chemistry, 5, 10-15. doi: 10.4236/ampc.2015.51002.
 
References
[1]Wagner, W.F., Gump, J.R. and Hurt, E.N. (1952) Factors Affecting Stability of Aqueous Potassium Ferrate (VI) Solutions. Analytical Chemistry, 24, 1497-1498.
http://dx.doi.org/10.1021/ac60069a037
 
[2]Audette, R.J. and Quail, J.W. (1972) Potassium, Rubidium, Césium, and Barium Ferrates VI: Préparations, Infrared Spectra, and Magnetic Susceptibilities. Inorganic Chemistry, 11, 1904-1908.
http://dx.doi.org/10.1021/ic50114a034
 
[3]Hoy, G. and Corson, M. (1980) Critical Slowing down of Spin Fluctuations in K2FeO4. Journal of Magnetism and Magnetic Materials, 15, 627.
http://dx.doi.org/10.1016/0304-8853(80)90693-9
 
[4]Menil, F. (1985) Systematic Trends of the 57Fe Mossbauer Isomer Shifts in (FeOn) and (FeFn) Polyhedra. Evidence of a New Correlation between the Isomer Shift and the Inductive Effect of the Competing Bond T-X (→Fe) (Where X Is O or F and T Any Element with a Formal Positive Charge. Journal of Physics and Chemistry of Solids, 46, 763-789.
http://dx.doi.org/10.1016/0022-3697(85)90001-0
 
[5]Licht, S., Naschitz, V., Halperin, L., Halperin, N., Lin, L., Chen, J., Ghosh, S. and Liu, B. (2001) Analysis of Ferrate (VI) Compounds and Super-Iron Fe (VI) Battery Cathodes: FTIR, ICP, Titrimetric, XRD, UV/VIS, and Electrochemical Characterization. Journal of Power Sources, 101, 167-176.
http://dx.doi.org/10.1016/S0378-7753(01)00786-8
 
[6]Licht, S., Tel-Vered, R. and Halperin, L. (2002) Direct Electrochemical Preparation of Solid Fe (VI) Ferrate, and Super-Iron Battery Compounds. Electrochemistry Communications, 4, 933-937.
http://dx.doi.org/10.1016/S1388-2481(02)00493-9
 
[7]He, W.C., Wang, J.M., Shao, H.B., Zhang, J.Q. and Cao, C.N. (2005) Novel KOH Electrolyte for One-Step Electrochemical Synthesis of High Purity Solid K2FeO4: Comparison with NaOH. Electrochemistry Communications, 7, 607-611.
http://dx.doi.org/10.1016/j.elecom.2005.04.011
 
[8]Xu, Z.H., Wang, J.M., Shao, H.B., Zheng, T. and Zhang, J.Q. (2007) Preliminary Investigation on the Physicochemical Properties of Calcium Ferrate (VI). Electrochemistry Communications, 9, 371-377.
http://dx.doi.org/10.1016/j.elecom.2006.09.015
 
[9]Hívesa, J., Benová, M., Bouzek, K., Sitek, J. and Sharma, V.K. (2008) The Cyclic Voltammetric Study of Ferrate (VI) Formation in a Molten Na/K Hydroxide Mixture. Electrochimica Acta, 54, 203-208.
http://dx.doi.org/10.1016/j.electacta.2008.08.009
 
[10]Wang, Y.L., Ye, S.H., Wang, Y.Y., Cao, J.S. and Wu, F. (2009) Structural and Electrochemical Properties of a K2FeO4 Cathode for Rechargeable Li Ion Batteries. Electrochimica Acta, 54, 4131-4135.
http://dx.doi.org/10.1016/j.electacta.2009.02.053
 
[11]El Maghraoui, A., Zerouale, A., Ijjaali, M. and Sajieddine, M. (2013) Synthesis and Characterization of Ferrate (VI) Alkali Metal by Electro-chemical Method. Advances in Materials Physics and Chemistry, 3, 83-87.
http://dx.doi.org/10.4236/ampc.2013.31013
 
[12]Kanari, N., Gaballah, I., Evrard, O. and Neveux, N. (1999) Procède de synthèse par voie solide de ferrates de métaux alcalins ou alcalino-terreux et ferrates ainsi obtenus. Brevet francais, No. 9913389.
 
[13]Thompson, J.A. (1985) Process for Producing Alkali Metal Ferrates Utilising Hematite and Magnetite. Brevet Américan, No. 4545974.
 
[14]Martinez-Tamayo, E., Beltran-Porter, A. and Beltran-Porter, D. (1986) Iron Compounds in High Oxidation States: II. Reaction between Na2O2 and FeSO4. Thermochimica Acta, 97, 243-255.
http://dx.doi.org/10.1016/0040-6031(86)87024-1
 
[15]Kisselev, Y.M., Kopelev, N.S., Zav’yalova, N.A., Perfiliev, Y.D. and Kazin, P.E. (1989) The Preparation of Alkali Métal Ferrates VI. Russian Journal of Inorganic Chemistry, 34, 1250-1253.
 
[16]Kopelev, N.S., Perfiliev, Y.D. and Kiselev, Y.M. (1992) Mossbauer Study of Soduim Ferrates (IV) and (VI). Journal of Radioanalytical and Nuclear Chemistry Articles, 162, 239-251.
http://dx.doi.org/10.1007/BF02035384
 
[17]Cici, M. and Cuci, Y. (1997) Production of Some Coagulant Materials from Galvanizing Workshop Waste. Waste Management, 17, 407-410.
 
[18]Lee, Y.H., Cho, M., Kim, J.Y. and Yoon, J. (2004) Chemistry of Ferrate Fe (VI) in Aqueous Solution and Its Application as a Green Chemical. Journal of Industrial and Engineering Chemistry, 10, 161-171.
 
[19]Jiang, J.Q. and Lioyd, B. (2002) Progress in the Development and Use of Ferrate VI Salt as an Oxidant and Coagulant for Water and Wastewater Treatment. Water Research, 36, 1397-1408.
http://dx.doi.org/10.1016/S0043-1354(01)00358-X                                                          eww150113lx
 
[20]Tsapin, A.I., Goldfeld, M.G., Mcdonald, G.D., Nealson, K.H., Moskovitz, B., Solheid, P., Klemner, W., Kelly, S.D. and Orlandini, K.A. (2000) Iron (VI): Hypothetical Candidate for the Martian Oxidant. Icarus, 147, 68-78.
标签：

评论

发表评论

此博客中的热门博文

Does Immigration Promote the Investment of the Monopolistic Firm?

In the present paper, we examine the effect of increasing uncertainty of immigrants’ growth on the optimal timing of investment of a firm that has a monopolistic power over the labor market. It is revealed that when the uncertainty of immigrants’ growth is more than a threshold level, increasing uncertainty of immigrants’ growth accelerates the optimal timing of firms’ investment and enhances the economic growth, even if the uncertainty of immigrants’ growth is formulated by the geometric Brownian motion, which is in sharp contrast to the standard result that an increase in the uncertainty postpones the optimal timing. With an increase in the immigrants over the past ten years, workforces in the host countries have been growing significantly to the extent that the immigrants represent 70% of the increase in the workforce in Europe, and 47% in the United States as OECD indicates. In the present paper, we attempted to investigate the effect of increased uncertainty caused by the growi...
发表评论
阅读全文

Education Policy Implementation: A Mechanism for Enhancing Primary Education Development in Zanzibar

Education is one of the fundamental rights of individuals; therefore, the government of a country needs to develop and strengthen educational policy and quality as well as to ensure that everyone has equal access to basic education. The improvement of access and quality of education in the world is becoming as an essential factor in development, whereas the basic education (primary school), is acknowledged as a foundation of the higher educational development for every country. To fulfill this goal, governments introduce several policies and procedures; however, it requires some reforms and participation from the politician, policymakers, and other stakeholders to re-examine educational policy so that it can lead to multiplication and betterment of the reforms. Educational reforms actually focus on accountability. A positive educational development and reform is very challenging and needs more effort and strategy on how to use and utilize the resources effectively as such it can achie...
发表评论
阅读全文