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1 Introduction Electrolytic manganese residue (EMR) is a one of the industrial solid waste generated in manganese hydrometallurgical processing, usually contains manganese and ammonia nitrogen [ 1 ]. Since 2000, China has become the largest electrolytic manganese metal producing country, representing 98% of the world’s manganese metal output in 2017. Generally, producing 1 ton of manganese would generate 6-10 tons of EMR depending on the grade of manganese ore [ 2 ]. In China, currently more than 10 million tons per year of EMR are being discarded as solid waste

Rev. Neurosci., Vol. 22(6): 675–694, 2011 • Copyright © by Walter de Gruyter • Berlin • Boston. DOI 10.1515/RNS.2011.048 Manganese enhanced MRI (MEMRI): neurophysiological applications Taeko Inoue 1 , Tabassum Majid 2 and Robia G. Pautler 1– 5, * 1 Department of Molecular Physiology and Biophysics , Baylor College of Medicine, Houston, TX , USA 2 Translational Biology and Molecular Medicine (TBMM) Graduate Program , Baylor College of Medicine, Houston, TX , USA 3 Department of Neuroscience , Baylor College of Medicine, Houston, TX

Introduction Silicomanganese is widely used as a complex reducer and an alloying addition in the production of various grades of steel due to its economic and metallurgical advantages. Using SiMn instead of ferrosilicon (FeSi) and ferromanganese (FeMn) results in both reduction in production cost and technical advantages. It is also used as a semi-product in the manufacture of medium- and low-carbon ferromanganese and metallic manganese. Earlier workers [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ] have used different raw materials like Fe-Mn slag, manganese ore, quartzite

Nitridocompounds of manganese: manganese nitrides and nitridomanganates R. Niewa* Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, D-01187 Dresden, Germany Received August 21, 2001; accepted October 30, 2001 Abstract. The chemistry of nitrides and nitridometalates is a rapidly growing field in solid state chemistry. This short review is intended to give a brief but comprehensive overview on the compounds and phases formed with man- ganese, which cover an especially broad range of oxida- tion states. Furthermore, the present paper

Introduction The direct alloying of steel by manganese ore [ 1 , 2 ] is not fully utilized in steelmaking [ 3 , 4 , 5 , 6 , 7 ] and the inefficiency of the reduction of manganese ore results in low manganese yield. The reduction of manganese ore in the solid state [ 3 , 6 , 7 , 9 , 10 , 12 , 14 ] comprises three stages. In the first stage (500–1,150 °C), MnO 2 , Mn 2 O 3 , and Mn 3 O 4 are reduced to MnO by CO gas. This stage is independent of temperature and weakly dependent on ore particle size. The second stage (1,150–1,300 °C) is that of the metal

American Mineralogist, Volume 96, pages 68–73, 2011 0003-004X/11/0001–068$05.00/DOI: 10.2138/am.2011.3585 68 Association between phosphorus and iron oxides in manganese ores Geraldo MaGela da Costa* and larissa ribeiro HerzoG Departamento de Química, Universidade Federal de Ouro Preto, 35400-000, Ouro Preto (MG), Brazil abstraCt Four manganese ore samples were subjected to sequential extractions with hydrogen peroxide and dithionite-citrate-bicarbonate. The first attack was meant to remove all manganese-bearing phases, whereas the second treatment was

[1] http://www.awwoa.org.au/conf_papers/2001/ [2] http://www.cce.cornell.edu/factsheets/wq-fact-sheets/ [3] http://www.ext.vt.edu/pubs/housing/ [4] T. Stembal, M. Markic, N. Ribicic, F. Briski and L. Sipos: “Removal of ammonia, iron and manganese from groundwaters of northern Croatia-pilot plant studies”, Process Biochem., Vol. 40, (2005), pp. 327–335. http://dx.doi.org/10.1016/j.procbio.2004.01.006 [5] D. Gregory and K. Carlson: “Effect of soluble Mn concentration on oxidation kinetics”, Journal AWWA, Vol. 95(1), (2003), pp. 98–108. [6] G. Tchobanoglous and

N otizen 471 Darstellung des Benzolmangantricarbonyl-Kations aus Methylcyclopentadienylmangantricarbonyl Preparation of Cationic Benzene-manganese-tricarbonyl from Methylcyclopentadienyl-manganese-tricarbonyl P a u l B a c h m a n n , K a r l -R u d o l f R e p p u n d H e l l m u t S in g e r U niversität Mainz, Fachbereich Chemie, A bteilung für Lehram tskandidaten der Chemie (Z. Naturforsch. 32b, 471-472 [1977]; eingegangen am 17. Jan u a r 1977) Cationic M anganese-triearbonyl Complexes, Aromatics, M ethylcyclopentadienyl-m anganese

Radiochim. Acta 98, 655–663 (2010) / DOI 10.1524/ract.2010.1766 © by Oldenbourg Wissenschaftsverlag, München Molecular interactions of plutonium(VI) with synthetic manganese-substituted goethite By Y.-J. Hu1,2, L. K. Schwaiger1,2, C. H. Booth3, R. K. Kukkadapu4, E. Cristiano2, D. Kaplan5 and H. Nitsche1,2,∗ 1 Department of Chemistry, University of California, Berkeley, CA 94720, USA 2 Nuclear Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA 3 Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720

Introduction Manganese (Mn) is a biologically active element, a trace amount of which is always needed in the human body to regulate the body functions effectively ( Horning et al. 2015 , Liang et al. 2015 ). For example, Mn superoxide dismutase is a naturally occurring radical scavenger and acts a first line of defense against superoxides produced as byproducts of many useful reactions occurring consistently in the human body ( Li et al. 1995 , Sarsour et al. 2014 ). It is important to note that either an excess or a deficiency of Mn may cause severe issues to