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This may be attributed to the ore deposition conditions, the occurrence depth, the composition of rocks bearing them, as well as chemistry related to the concentrate mineralogical makeup.
Experiments Chemistry of the concentrate types is shown in Table 1.
For reference Table 1 shows chemistry of the KGOK commercial concentrate (0).
Yuriev, Original structure impact on roasted pellet properties, University Bulletin.
Pavlovets, Structure formation principles with pellet production process enhancement, Siberia State Industrial University Bulletin. 3 (2014) 28-33

Aprígio Veloso, 882 - Bodocongó - Campina Grande, PB - Brazil 2 Federal University of Paraíba, Chemistry Department, João Pessoa PB, 58000-000 3 Chemistry Institute, Federal University of Bahia - Campus Universitário de Ondina, Salvador , BA - Brazil a anacristina@dema.ufcg.edu.br, bkalinesouto@yahoo.com.br, ccleophasporto@gmail.com, d ednaldosousa@ig.com.br, e handrade@ufba.br, flucianna@dema.ufcg.edu.b, g helio@dema.ufcg.edu.br, hbosco@quimica.ufrn.br b PhD Student in Processes Engineering - CCT/UFCG Keywords: alumina, zirconia, catalyst Abstract: The aim of this work is to prepare and characterize Al2O3-ZrO2 powders by Pechine method and to evaluate them as supports for palladium catalysts in the selective reduction of NO with CH4.
It can be observed that the zirconia without doping (ZrO2) show the formation of two crystalline phases, a majority phase with monoclinic structure (JCPDF 65-1023) and a second phase with tetragonal structure (JCPDF 79-1769).
It is known that the support may affect of the physical-chemistry properties of the catalysts, and the results presented above clearly show that the morphological and structural characteristics of the supports have more influence on the catalyst activity then the intrinsic feature of each phase (composition).
Crystalline powders, with tetragonal ZrO2 structure, were obtained after calcinations at 9000C, with incorporation of Al 3+ in the net structure of zirconia.
Kikkawa: Journal of Solid State Chemistry Vol. 180 (2007), p. 1984

Continuous research activities were carried out on these alloys in order to perform detailed analyses of the relationships between process parameters, chemistry, microstructural features, deformation mechanisms and mechanical behavior.
The THYMONEL 8 alloy was thus identified with a chemistry suited for single crystal casting and characterised by a low susceptibility to hydrogen environment embrittlement (HEE) [11].
Analysis of the dislocation structure confirmed that the deformation is strongly confined in the γ matrix channels of MC534 (Fig. 2).
This objective was attained with well-balanced chemistries and by using a supersolvus solution treatment producing coarse grained microstructure.
Recent improvement in chemistries and mechanical properties of blade and disk alloys fully benefited from the results of these fundamental researches.

The XRD patterns confirmed that the structure of as-synthesized sample is magnetite with cubic structure system.
All patterns indicate the as-synthesized samples have cubic structure system [18].
Bioconjugate chemistry, 2004. 15(2): p. 394-401
The Journal of Physical Chemistry C, 2013. 117(10): p. 5436-5445
The Journal of Physical Chemistry B, 2007. 111(28): p. 7978-7986

And it was used as structure materials in engineering practices in China in 1990s.
The dense crystal structure of dicalcium silicate leads to low hydraulic activity in comparison with tricalcium silicate (C3S) [HFW Taylor, 1997] [Xiuji Feng et al., 1994].
Mater., 24 (7), pp 1262–1267 [3] H F W Taylor (1997) Cement Chemistry, 2nd edition, ISBN: 0727725920 [4] ICCC (1992) Proceedings of 9th ICCC International Congress on the Chemistry of Cement, New Delhi [5] ICCC (2011) Proceedings of 13th ICCC International Congress on the Chemistry of Cement, Madrid, 3-8 July [6] Locher FW (1986) Low Energy Clinker In: Proceedings of the 8th International Congress on the Chemistry of Cement, Rio de Janeiro; Principle Paper: Sub Theme 1.3 vol.I:57-67 [7] Matkovic B, Yong JF (1986) Dicalcium silicates doped with phosphate.
Zement-Kalk-Gips; 40:434-7 [13] Tsurumi T, Hirano Y, Kato H, Kamiya T, Daimon M (1994) Crystal structure and hydration of belite.
Proceedings of the 8th International Congress on the Chemistry of Cement, Rio de Janeiro; Sub Theme 1.2 vol.II:217-22 [15] Xiuji F, Xinmin M, Congxi T. (1994) Study on the structure and characteristic of dicalcium silicate with quantum chemistry calculation.

The X-ray diffraction (XRD) patterns reveal that the material is crystallized to layered a-NaFeO2 structure.
The observed diffraction lines can be indexed according to R-3m space group of a-NaFeO2 structure.
All samples show a pure single spinel structure and well crystal shape.
Chinese Journal of Inorganic Chemistry.
Chinese Journal of Inorganic Chemistry.

Different crystal structure produces different macro-properties.
Its chemical structure is shown in Fig.5 [7].
Ca2+combines with SO42- tetrahedral and composes a double-layers structure in which H2O molecules is distributed.
Thus, a layer-shaped structure is formed by alternative bond between ion layers consisted of Ca2+ and SO42- and H2O molecules layers.
According to crystal chemistry of dihydrate, the plane (111) face is mainly composed of calcium [12], so citric acid is preferably adsorbed this face by complexes, decreasing its surface energy and growth rate, resulting in short prismatic crystal instead of need-like.

A nano-structure memristor and key manufacture technologies Bai Xiaohui1, a,Wendianzhong 2,b* 1College of Information Science &Technology ,Heilongjiang University, Harbin Heilongjiang 150080, China 2HLJ Province Key Laboratories of senior-education for Electronic Engineering, Heilongjiang University, Harbin, 150080，China 2Major Laboratories of Integrated Circuits, Heilongjiang University, Harbin, 150080, China a baixiaoh@yahoo.com.cn bwendianzhong@126.com ,* Corresponding author The work was supported by 2010 Scientific Research Fund of Heilongjiang Provincial Education Department(NO: 11551347), Heilongjiang Province Innovative Post-Graduate Research Projects In 2009 under Grant NO.YJSCX2009-018HLJ Keywords: Memristor; Nano-Structure; AAO; nanowires; Pt Abstract.
This paper implement a nano-structure memristor which based on HP lab memristor.Using electrolyte compose method making Pt nanowires act as nano-structure wires, becoming point contact from liner contact to will enhance quantum effect.
Several studies have showed some new structure memristors ,most of them based on single oxygen vacancy injection.
Meet the requirements of nano-structure wires.
[J]Journal Of Physical Chemistry B,2005,109(23):11414-11419

The purpose of this paper is to review the current status of the recycling technologies of spent LIBs (LIBs) based on LiCoO2 system, including the structure and components of the LIBs, the recycling processes from spent LIBs, the problems and prospect of the studies of the recycling technologies have been put forward.
Existing recycling is focused on cobalt chemistry batteries, not to be used in vehicles.
The differing size and chemistry makes a dedicated process preferred in order to optimize dismantling and separation.
Structure of lithium-ion rechargeable battery A LIB comprises a cathode, an anode, organic electrolyte, and a separator.
Hence, a process developed and optimized for a particular battery chemistry should be beneficial.

Analysis structure and composition of egg yolk Xin Wang1, a; Qigen Tong2 1,2Beijing University of Agriculture of Bei nong 7 road of Zhu Xin zhuang of Chang ping district of Beijing of China, 102206 awwxxxxxx8@sina.com tel.: 18910677278 Keywords: egg yolk; Structure; composition Abstract: In this paper, the structure and composition of the egg yolk has guiding effect to the quality problem of the egg yolk, processed foods.
At present, structure of the eggs has been studied, but the structure of the egg yolk with few related reports.
Histological structures of native and cooked yolks from duck egg observed by SEM and cryo-SEM[J].
Journal of agricultural and food chemistry, 2009, 57(10): 4218-4223
The structure of the yolk of the hen's egg as studied by electron microscopy I.