### 14 - Flotation of Lead-Zinc Ores

Title 14 - Flotation of Lead-Zinc Ores
Author: Bulatovic, Srdjan M
, Elsevier 2007
2007
http://www.sciencedirect.com/science/article/pii/B978044453029550023X
More details: Publisher Summary Most of the lead?��zinc ore contains silver and to a lesser degree, gold. Almost 85\% of the silver production in the world comes from lead?��zinc ores. Silver recovery in a large number of ores, specifically from South America, is emphasized, and some of these circuits were in fact designed to provide the highest possible silver recovery. The reagent scheme used in the treatment of lead?��zinc ores varies considerably and depends on the nature and mineralogy of the ore. In most cases, NaCN?��ZnSO4 depressant system is used with xanthate + dithiophosphate collectors. These reagent schemes are normally employed for treatment of carbonatite and coarse-grained massive sulfides. However, for treatment of disseminated massive sulfide ores, a much more complex reagent scheme is used. The type of reagent schemes also varies by regions, where the application of new technology (i.e., new collectors and depressants) in some regions is very slow and the operating plants rely on the old conventional processes and technology. As for copper?��zinc ores, some of the lead?��zinc ores are treated using bulk flotation followed by lead?��zinc separation.
ISBN978-0-444-53029-5

### Molecular absorption spectrometry in flames and furnaces: A review

Title Molecular absorption spectrometry in flames and furnaces: A review
Author: Butcher, David J
Analytica Chimica Acta, 2013
2013
http://www.sciencedirect.com/science/article/pii/S0003267013010179
More details: Abstract Molecular absorption spectrometry (MAS), originally developed in the 1970s, is a technique to determine non-metals in flames and graphite furnaces by monitoring the absorbance of diatomic molecules. Early studies employed low resolution instruments designed for line source atomic absorption, which provided a limited choice of analytical wavelengths, insufficient spectral resolution, and spectral interferences. However, the development of high-resolution continuum source atomic absorption spectrometry (HR-CS AAS) instrumentation has allowed the analysis of challenging samples for non-metals as well as some difficult elements to determine by AAS, such as aluminum and phosphorus. In this review, theory and analytical considerations for \{MAS\} are discussed. The principles and limitations of low resolution \{MAS\} are described, along with its applications. HR-CS \{AAS\} instrumentation is reviewed, emphasizing performance characteristics most relevant for MAS. Applications of flame and HR-CS \{GFMAS\} are reviewed, highlighting the most significant work to date. The paper concludes with an evaluation of the enhanced analytical capabilities provided by HR-CS MAS. Atomic absorption spectrometry,Flame,Graphite furnace,High-resolution continuum source,Molecular absorption spectrometry

### Thermal oxidation of indium and gallium sulphides

Title Thermal oxidation of indium and gallium sulphides
Author: Balitskii, O A; Savchyn, V P & Savchyn, P V
Physica B: Condensed Matter, 2005
2005
http://www.sciencedirect.com/science/article/pii/S0921452604011573
More details: The paper illustrates thermal oxidation of InS and GaS. Both thermodynamic calculations and experimental results suggest the formation of a monophase oxide layer. Such oxidation processes are not typical for the other compounds in the III?��VI system, where the native oxide film is another chalcogen compound with a formula like ( A 2 \{III\} B 3 \{VI\} ) enriched. GaS,III?��VI compound,InS,Thermal oxidation

### Emanation thermal analysis

Title Emanation thermal analysis
Thermochimica Acta, 1978
1978
http://www.sciencedirect.com/science/article/pii/004060317880001X
More details:

### Study of the new $\beta$-In2S3 containing Na thin films. Part II: Optical and electrical characterization of thin films

Title Study of the new $\beta$-In2S3 containing Na thin films. Part II: Optical and electrical characterization of thin films
Author: Barreau, N; Bern\`{e}de, J. C. & Marsillac, S.
Journal of Crystal Growth, 2002
2002
More details: The optical and electrical properties of the new [In16]Oh[In5.33-xNa3x?��2.66- 2x]TdS32 (BINS) thin films have been studied. The determination of the optical band gap of films containing different rates of sodium has shown that it linearly increases from 2.10 eV, when the films are pure $\beta$-In2S3, to 2.95 eV, when their sodium content corresponds to x .9 i.e. [In16]Oh[In4.4Na2.7?��0.9]TdS32 compound. This evolution of the band gap has been discussed in terms of In-S bond length and electronegativity of Na and In elements. All the BINS thin films have an n-type electrical conductivity, which decreases from 4 ?� 10-7 to 10-7 S cm-1 when x increases from 0.05 to 0.9, respectively. The electrical conductivity of pure $\beta$-In2S3 has been found around 2 ?� 10-8 S cm-1, which is lower than that of films containing sodium. The variation of the room conductivity of the films is related to the sodium distribution in the crystalline structure. ?? 2002 Elsevier Science B.V. All rights reserved.A1. Electrical properties,A1. Optical properties,A3. Physical vapor deposition processes,B1. New materials,B2. Semicinducting materials,B3. Optoelectronical devices
ISBN3325112552

### Bandgap properties of the indium sulfide thin-films grown by co-evaporation

Title Bandgap properties of the indium sulfide thin-films grown by co-evaporation
Author: Barreau, N; Mokrani, A; Couzini\'{e}-Devy, F. & Kessler, J
Thin Solid Films, February 2009
2009
More details:

### Elements of group 6

Title Elements of group 6
Author: Barker, M G
Coordination Chemistry Reviews, 1975
1975
http://www.sciencedirect.com/science/article/pii/S0010854500804713
More details:

### 5.08 - Tungsten Compounds with \CO\ or Isocyanides

Title 5.08 - Tungsten Compounds with \CO\ or Isocyanides
Author: Baker, M V & Brown, D H
, Elsevier 2007
2007
http://www.sciencedirect.com/science/article/pii/B008045047400073X
More details: A critical review of literature from 1993 to 2004 of tungsten compounds containing carbonyl and/or isocyanide ligands is presented. Complexes containing heteroatom or carbon $\pi$- and $\sigma$-donor ligands are covered within donor-type groupings.
ISBN978-0-08-045047-6

### Annealing and light effect on optical and electrical properties of evaporated indium selenide thin films

Title Annealing and light effect on optical and electrical properties of evaporated indium selenide thin films
Author: Ate?�, Aytun\c{c}; Kundak\c{c}??, Mutlu; Astam, Aykut & Y??ld??r??m, Muhammet
Physica E: Low-dimensional Systems and Nanostructures, June 2008
2008
http://www.sciencedirect.com/science/article/pii/S1386947708000143
More details: Indium selenide thin films have been deposited by vacuum evaporation method on glass substrates at a vacuum level of 10?��5Torr. The annealing temperature effect on optical band gap and the light effect on the electrical properties of films have been investigated. Scanning electron microscopy and X-ray diffraction techniques were used for the investigation of structural properties of films. Optical band gap values of films have been changed from 1.33 to 2.08eV with annealing temperature due to the formation of $\gamma$-In2Se3 phase. The light effect on electrical properties has been investigated and it was found that the current increase with increasing light intensity and increasing rate in illuminated 500W film was greater than in others. There is a very important decreasing in the resistance values of the samples that are annealed at 300 and 400??C because of the improvement of the crystallization.73.61.?��r,78.20.?��e,Electrical properties,Indium selenide,Optical properties,Thin films

### Effect of substrate temperature on the electrical and optical properties of reactively evaporated indium tin oxide films

Title Effect of substrate temperature on the electrical and optical properties of reactively evaporated indium tin oxide films
Author: Balasubramanian, N & Subrahmanyam, A
Materials Science & Engineering B: Solid-State Materials for Advanced Technology, 1988
1988
http://dx.doi.org/10.1016/0921-5107(88)90008-6
More details: Electrical and optical properties of indium tin oxide films (ITO) coated on soda-lime glass substrates have been investigated as a function of substrate temperature. Highly conducting and transparent films have been obtained at a substrate temperature of 350\°C and above. An increase in carrier concentration accompanied by a widening in optical band gap (the Burstein-Moss shift) have been observed with increasing substrate temperature. Enhancement of carrier concentration at higher substrate temperatures may be attributed to the presence of higher valency states of tin (Sn4+) occupying the indium sublattice of indium oxide. Previous reports indicate that ITO/Si heterojunction has extremely good photovoltaic properties.Films--Chemical Vapor Deposition;Electric Properti

### Growth and characterization of CuxS (x=1.0, 1.76, and 2.0) thin films grown by solution growth technique (SGT)

Title Growth and characterization of CuxS (x0, 1.76, and 2.0) thin films grown by solution growth technique (SGT)
Author: Bagul, S.V.; Chavhan, S.D. & Sharma, Ramphal
Journal of Physics and Chemistry of Solids, September 2007
2007
More details:

### Optical and structural properties of nanocrystalline copper oxide thin films prepared by activated reactive evaporation

Title Optical and structural properties of nanocrystalline copper oxide thin films prepared by activated reactive evaporation
Author: Balamurugan, B. & Mehta, B.R.
Thin Solid Films, September 2001
2001
More details: Nanocrystalline Cu2O thin films have been synthesized using an activated reactive evaporation technique. Structural and optical characterizations of these films have been carried out using: glancing angle X-ray diffractometer; Fourier transform infrared spectrometer; transmission electron microscope; and UV-VIS-NIR spectrophotometer. The nanocrystallite size in these films was varied by varying deposition parameters. Optical studies show a direct allowed transition and a shift in the optical absorption edge from the bulk value with nanocrystallite size and stoichiometry of these films. These results show that single phase nanocrystalline Cu2O thin films can be synthesized at a relatively low substrate temperature using the activated reactive evaporation technique. These studies indicate that nanocrystallinity results in the stability of cubic Cu2O phase in these films. ?? 2001 Elsevier Science B.V. All rights reserved.Cuprous oxide,Nanocrystalline thin films,Optical properties,Structural properties,X-Ray diffraction
ISBN0040-6090

### Effect of temperature and deposition time on the optical properties of chemically deposited nanostructure PbS thin films

Title Effect of temperature and deposition time on the optical properties of chemically deposited nanostructure PbS thin films
Author: Abbas, M.M.; Shehab, A. Ab-M.; Hassan, N-A. & Al-Samuraee, A-K.
Thin Solid Films, Elsevier B.V. May 2011
2011
More details: Chemical bath deposition,Nanocrystalline,PbS film

### Crystal-field and spin???orbit interactions in the valence band of the ordered vacancy compound CuIn 4 Se 7

Title Crystal-field and spin?��orbit interactions in the valence band of the ordered vacancy compound CuIn 4 Se 7
Author: B., Pradeep & Philip, Rachel Reena
Semiconductor Science and Technology, 2002
2002
http://stacks.iop.org/0268-1242/17/i /a04
More details: The optical absorption spectra of the ordered vacancy compound CuIn 4 Se 7 thin film have been$\backslash$nanalysed with special consideration to the threefold optical structure at the fundamental gap. The$\backslash$nthin films for this study have been prepared by vacuum co-evaporation and the structural and$\backslash$ncompositional characterization done using x-ray diffraction in conjunction with energy dispersive$\backslash$nx-ray analysis. The quasi-cubic model adapted for crystals with tetragonal distortion has been used$\backslash$nto determine the crystal field splitting and spin?��orbit splitting parameters. The effects of p?��d$\backslash$nhybridization and structural changes on the parameters are explained. The percentage of$\backslash$nhybridization of the orbitals is determined using the linear hybridization model.

### Effect of temperature and deposition time on the optical properties of chemically deposited nanostructure PbS thin films

Title Effect of temperature and deposition time on the optical properties of chemically deposited nanostructure PbS thin films
Author: Abbas, M.M.; Shehab, A. Ab-M.; Hassan, N-A. & Al-Samuraee, A-K.
Thin Solid Films, Elsevier B.V. May 2011
2011
More details: Chemical bath deposition,Nanocrystalline,PbS film

### Very narrow In2S3 nanorods and nanowires from a single source precursor

Title Very narrow In2S3 nanorods and nanowires from a single source precursor
Author: Abdelhady, Ahmed Lutfi; Ramasamy, Karthik; Malik, Mohammad A & O?��Brien, Paul
Materials Letters, 2013
2013
http://www.sciencedirect.com/science/article/pii/S0167577X13002413
More details: Ultra-thin (\<1.0\&\#xa0;nm) nanorods or nanowires of $\beta$-In2S3were synthesized from the thermolysis of the indium(III) complex of 1,1,5,5-tetra-iso-propyl-2-thiobiuret in hot oleylamine. Indium sulfide,Nanowires,Single source precursor,Ultra-thin nanorods

### Conductivities and electronic structures of some phases in the lithium-iron-sulfur system

Title Conductivities and electronic structures of some phases in the lithium-iron-sulfur system
Author: Badwal, S P S & Thorn, R J
Journal of Solid State Chemistry, 1982
1982
http://www.sciencedirect.com/science/article/pii/0022459682902250
More details: During the electromigration of lithium ions from molten LiCl?�?KCl mixtures into FeS three of the phases formed are Li2FeS2 (X phase), Li3Fe2S4 (Z phase), and LiK6Fe24S26Cl (J phase). These phases and the copper-substituted X phase (Li1.33Cu0.67FeS2) were prepared by high-temperature solid-state reactions between the respective metal sulfides, and their electrical conductivities were measured over temperatures ranging from 20 to 550??C. The results show that the X and copper-substituted X phases are semiconductors with conductivities and activation energies in the range of 0.1 to 10 (ohm-cm)?��1 and of 8 to 21 kJ mole?��1, respectively. The Z phase has a conductivity orders of magnitude less, and the J phase decomposes. A change in the slope of the Arrhenius plot occurs at 225??C, probably associated with some residue of the phase change in the FeS component. The electronic structures determined with photoelectron spectroscopy reveal the presence of two valence states for iron in the X, copper-substituted X, and Z phases. The valence bands consist of overlaping Fe(3d), Cu(3d), and S(3p) electronic densities.

### Hydrothermal synthesis, characterization and optical properties of 3D flower like indium sulfide nanostructures

Title Hydrothermal synthesis, characterization and optical properties of 3D flower like indium sulfide nanostructures
Author: Abadi, Parvaneh Ghaderi Sheikhi; Salavati-Niasari, Masoud & Davar, Fatemeh
Superlattices and Microstructures, 2013
2013
http://www.sciencedirect.com/science/article/pii/S0749603612002601
More details: High-quality and high-yield 3D flower like indium sulfide (In2S3) nanostructures with cubic structure were synthesized by a wet chemical route, without using any surfactant and organic solvents at 160\&\#xa0;??C for 12\&\#xa0;h, by using InCl3 and 2-aminothiophenol (2-ATP) as starting reagents. The obtained In2S3 with different morphologies and size was characterized by X-ray diffraction pattern (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), and ultraviolet?��visible (UV?��vis) spectroscopy. The effects of reaction parameters, such as temperature, precursor concentration and reaction time on the morphology, and particle size of products were investigated. Our experimental results showed that temperature and time reaction played key roles in the final morphology of In2S3. The morphology of In2S3 structures could be changed from one-dimensional (1D) structures to three-dimensional (3D) structures by increasing reaction time to 24\&\#xa0;h. In the present study the optical properties 3D In2S3 structures were investigated. 3D structure,Hydrothermal,Indium sulfide,Nanostructure,Semiconductor