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antimony volatilization methods

Antimony(V) volatilization with bromide and determination

2005-5-15  1.. IntroductionInorganic antimony determination is an analytical task of particular interest because of the risk to humans and its dependence on the oxidation state .The analytical tendencies of antimony determination and speciation, summarized in recent reviews,,,show the use of two main methodologies, which can be classified as discontinuous or continuous methods.

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Antimony(V) volatilization with bromide and determination

Antimony(V) is volatilized by reaction with potassium bromide in concentrated sulfuric acid media. After volatilization, the gases can be transported to an inductively coupled plasma spectrometer

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Antimony(V) volatilization with bromide and determination

2005-5-15  Antimony(V) volatilization with bromide and determination by inductively coupled plasma atomic emission spectrometry. Lopez-Molinero A(1), Echegoyen Y, Sipiera D, Castillo JR. Author information: (1)Department of Analytical Chemistry, Faculty of Science, University of Zaragoza, 50009 Zaragoza, Spain.

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Volatilization of in situ generated antimony trichloride

2007-8-29  Volatilization of Sb has been carried out using vapors generated from aqua regia for the determination of non-volatile impurities present in antimony. The antimony trichloride (SbCl3) thus generated was volatilized >99.9% at 250 degrees C in 90 min. Recoveries of spiked impurities Al, Mn, Co, Ni, Cu, Sr, Ag, Cd, Ba, Pb were found to be >90% (47

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Volatility and Vapor Pressure Measurements of

KEY WORDS : Antimony Oxide, Arsenic Oxide, CaO-SiO2-FeO1.5 Slag, Volatility, Vapor Pressure, Transpiration Method 1.Introduction Volatilization of the antimony and arsenic components in fused oxides is of great concern in production of metals as well

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Volatilization of Arsenic and Antimony from Tennantite

The volatilization of arsenic (As) and antimony (Sb) impurities in a copper ore consisting of tennantite (Cu 12 As 4 S 13)/tetrahedrite (Cu 12 Sb 4 S 13) by roasting in both nitrogen and air atmospheres was investigated in this study.The roasting experiments were performed at different temperatures ranging from 500 to 1200°C and different retention times from 15 to 60 minutes while the

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Direct extracting lead sulfide and antimony trisulfide via

The decomposition behavior of jamesonite (Pb 4 FeSb 6 S 14) in argon and 10 Pa, the volatilization of pure sulfides and the vacuum distillation behavior of jamesonite under 10 Pa were also studied. The separation of lead and antimony via two methods, namely multi-step condensation and one-step multi-stage condensation was developed.

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Fungal volatilization of arsenic and antimony and the

1998-1-1  1 Introduction. Toxic gases resulting from the biological volatilization of group Vb elements (phosphorus, arsenic and antimony) have been implicated in sudden infant death syndrome (SIDS) [].Antimony, the element attracting most attention, is present primarily as a fire retardant in PVC used to make mattress covers [2, 3].Also, it has been suggested that phosphorus, widely present in natural

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Mechanism of stibnite volatilization at high temperature

2015-3-5  methods for recovery of antimony can be generally classified into three types: 1) production of the trioxide via volatilization roast followed by reduction to metal, 2) direct production from ore by reverberatory, blast and special furnace methods [8−9], and 3

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methods of processing antimony uses

Antimony Volatilization Methods antimony volatilization methods. antimony is a hard, brittle metalloid that is used as an alloying agent in lead acid batteries, methods of processing antimony uses. Get Price; flotation method for antimony china methods of processing antimony uses ? the most important mineral processing methods.

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Antimony(V) volatilization with bromide and determination

Antimony(V) is volatilized by reaction with potassium bromide in concentrated sulfuric acid media. After volatilization, the gases can be transported to an inductively coupled plasma spectrometer

get price

Antimony(V) volatilization with bromide and determination

2005-5-15  Antimony(V) volatilization with bromide and determination by inductively coupled plasma atomic emission spectrometry. Lopez-Molinero A(1), Echegoyen Y, Sipiera D, Castillo JR. Author information: (1)Department of Analytical Chemistry, Faculty of Science, University of Zaragoza, 50009 Zaragoza, Spain.

get price

Volatilization of in situ generated antimony trichloride

2007-8-29  Volatilization of Sb has been carried out using vapors generated from aqua regia for the determination of non-volatile impurities present in antimony. The antimony trichloride (SbCl3) thus generated was volatilized >99.9% at 250 degrees C in 90 min. Recoveries of spiked impurities Al, Mn, Co, Ni, Cu, Sr, Ag, Cd, Ba, Pb were found to be >90% (47

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Volatility and Vapor Pressure Measurements of

KEY WORDS : Antimony Oxide, Arsenic Oxide, CaO-SiO2-FeO1.5 Slag, Volatility, Vapor Pressure, Transpiration Method 1.Introduction Volatilization of the antimony and arsenic components in fused oxides is of great concern in production of metals as well

get price

Fungal volatilization of arsenic and antimony and the

1998-1-1  1 Introduction. Toxic gases resulting from the biological volatilization of group Vb elements (phosphorus, arsenic and antimony) have been implicated in sudden infant death syndrome (SIDS) [].Antimony, the element attracting most attention, is present primarily as a fire retardant in PVC used to make mattress covers [2, 3].Also, it has been suggested that phosphorus, widely present in natural

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(PDF) High-Temperature Volatilization Mechanism of

Although the pyrometallurgical 2Sb2 S3 þ 9O2 ¼ 2Sb2 O3 þ 6SO2 ðgÞ ½1 methods dominate the production of antimony from sulfides, mainly from stibnite (Sb2S3), little has been Sb2 O3 þ 1=2O2 ¼ 2SbO2 ½2 reported on the rate of oxidation/volatilization of this mineral.

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Cobalt Recovery by the Chlorination-Volatilization Method

2019-6-15  OSTI.GOV Journal Article: Cobalt Recovery by the Chlorination-Volatilization Method

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KINETICS OF STIBNITE (S b S ) OXIDATION AT ROASTING

2014-10-28  oxidation-volatilization of this mineral at roasting or higher temperatures. On this matter, Komorova et al. [4] studied the vaporization of several antimony containing compounds, among them synthetic Sb 2 S 3, in nitrogen atmosphere using the transportation method. They found that in the temperature range of 600 °C to 824 °C, Sb 2 S 3

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Process for the recovery and separation of arsenic from

It is hypothesized that roasting or other volatilization of arsenic and antimony materials produces a fume containing a number of arsenic and antimony oxide compounds including the heteronuclear species such as As 3 SbO 6, As 2 Sb 2 O 6 and AsSb 3 O 6. When the fume is contacted with an oxygen containing gas at a controlled temperature the

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Chemical vapor generation for sample introduction into

A new method for antimony determination in soils is proposed. It is based on the chemical vapor generation of Sb(III) with bromide, after a reaction in sulfuric acid media and transport of the gaseous phase into an inductively coupled plasma for atomic emission spectrometry.The experimental variables influencing the method were delimited by experimental design and the most important were

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Antimony(V) volatilization with bromide and determination

2005-5-15  1.. IntroductionInorganic antimony determination is an analytical task of particular interest because of the risk to humans and its dependence on the oxidation state .The analytical tendencies of antimony determination and speciation, summarized in recent reviews,,,show the use of two main methodologies, which can be classified as discontinuous or continuous methods.

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A study on volatilization of antimony and bismuth by

A decomposition apparatus was established consisting of a reaction tube and a long air-cooling condenser for the separation of antimony and bismuth through volatilization. It is demonstrated that the reaction Sb2O3+6NH4I=2SbI3+6NH3+3H2O starts at 300°C and completes at 380°C in 8 min. In comparison, the reaction Bi2O3+6NH4I=2BiI3+6NH8+3H2O will not take place below 450°C and will

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Volatilization of in situ generated antimony trichloride

2007-8-29  The concentrations of impurities in high-purity antimony (Sb-I) using volatilization method could not be obtained for all the elements due to higher blank values. Hence, the open volatilization method is not suitable for samples of purity 99.999% or more.

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Validation and deployment of a quantitative trapping

Validation and deployment of a quantitative trapping method to measure volatile antimony emissions Microbial-mediated Sb volatilization is a poorly understood part of the Sb biogeochemical cycle. This is mostly due to a lack of laboratory and field-deployable methods that are capable of quantifying low-level emissions of Sb from diffuse

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Volatilization of Arsenic and Antimony from Tennantite

The volatilization of arsenic (As) and antimony (Sb) impurities in a copper ore consisting of tennantite (Cu 12 As 4 S 13)/tetrahedrite (Cu 12 Sb 4 S 13) by roasting in both nitrogen and air atmospheres was investigated in this study.The roasting experiments were performed at different temperatures ranging from 500 to 1200°C and different retention times from 15 to 60 minutes while the

get price

Direct extracting lead sulfide and antimony trisulfide via

The decomposition behavior of jamesonite (Pb 4 FeSb 6 S 14) in argon and 10 Pa, the volatilization of pure sulfides and the vacuum distillation behavior of jamesonite under 10 Pa were also studied. The separation of lead and antimony via two methods, namely multi-step condensation and one-step multi-stage condensation was developed.

get price

Fungal volatilization of arsenic and antimony and the

1998-1-1  1 Introduction. Toxic gases resulting from the biological volatilization of group Vb elements (phosphorus, arsenic and antimony) have been implicated in sudden infant death syndrome (SIDS) [].Antimony, the element attracting most attention, is present primarily as a fire retardant in PVC used to make mattress covers [2, 3].Also, it has been suggested that phosphorus, widely present in natural

get price

Sustainable phase-conversion method for antimony

2020-9-20  2020-9-20  1. Introduction. At present, most antimony smelters still adopt the volatilization process in blast furnace to extract antimony trioxide (Froehlich et al., 2017), and reduce it by coke in a reverberatory furnace to metallic antimony (Anderson, 2012).This process chain, however, has drawbacks, such as low efficiency, high energy consumption (around 3.6 × 10 7 kJ/t Sb) and high

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Mechanism of stibnite volatilization at high temperature

2015-3-5  methods for recovery of antimony can be generally classified into three types: 1) production of the trioxide via volatilization roast followed by reduction to metal, 2) direct production from ore by reverberatory, blast and special furnace methods [8−9], and 3

get price

methods of processing antimony uses

Antimony Volatilization Methods antimony volatilization methods. antimony is a hard, brittle metalloid that is used as an alloying agent in lead acid batteries, methods of processing antimony uses. Get Price; flotation method for antimony china methods of processing antimony uses ? the most important mineral processing methods.

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