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determination of zinc concentrates by separation

The determination of cadmium in zinc concentrates

zinc"blende(sphalerite)especiallywiththeUDperSlesian. The amounts of cadmium so occuring areverysmall, scs,rsely everrising above and generallyfallingbelow .20*^,

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Determination of antimony in lead, zinc concentrates and

Determination of antimony in lead, zinc concentrates and other smelter products by atomic-absorption spectrophotometry after separation by n-butyl acetate extraction of the chloro-complex. Murti SS(1), Rajan SC, Subrahmanyam J. Author information: (1)Process Laboratory, Hindustan Zinc Limited, Visakhapatnam-530 015, A.P., India.

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The determination of cadmium in zinc concentrates

TheDeterminationofCadmium inZiincConcentrates. Thechiefsourceofcadmiumistheoreof othermetals,especiallyzincblende,i/hexeitexists merelyasanimpurity.Presentasthesulphideitis thechiefconstituentofoneore,greenockite,whichis foundinrelativelysmallamountsinScotland,Bohemia, andPennsylvania,Theamountofcadmiumwhichiscon-

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Determination of antimony in lead, zinc concentrates and

01/06/1988· Determination of antimony by atomic-absorption spectrophotometry (AAS) has been dealt with in fair detail in the literature.1-5 Donaldson' has developed several methods for the determination of small amounts of antimony in copper, nickel, lead, zinc and molybdenum concentrates and related materials. These methods involve preliminary separation of antimony(III) from the matrix elements by

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Determination of silver in ores, concentrates, zinc

01/12/1982· Zinc process solutions. Transfer up to 75 ml (Note I I) of the solution, containing up to -500 ug of silver, to a 125-m1 separatory funnel marked at 100 ml and add sufficient concentrated or 50% sulphuric acid for the final concentration to be 2M.

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GB/T 8151.1-2012, PDF in English

Auto immediate delivery. Methods for chemical analysis of zinc concentrates -- Part 1: Determination of zinc content -- Precipitate separation-Na2EDTA titrimetric method and extractive separation -- Na2EDTA titrimetric method. GB/T 8151.1-2012. Valid.

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ISO 13658:2000(en), Zinc sulfide concentrates

This International Standard specifies a hydroxide precipitation and EDTA titrimetric method for the determination of the zinc content of zinc ores and concentrates containing 10 % (m/m) to 60 % (m/m) zinc.

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Determination of arsenic in ores, concentrates and related

Determination of arsenic in ores, concentrates and related materials by graphite-furnace atomic-absorption spectrometry after separation by xanthate extraction. M Donaldson E(1). Author information: (1)Mineral Sciences Laboratories, Canada Centre for Mineral and Energy Technology, Department of Energy, Mines and Resources, Ottawa, Canada. A method for determining approximately 0.2 mug/g or

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Spectrophotometric determination of selenium in

Spectrophotometric determination of selenium in concentrates and high-purity copper metal with 3,3'-diaminobenzidine after separation by xanthate extraction. Donaldson EM(1). Author information: (1)Mineral Sciences Laboratories, Canada Centre for Mineral and Energy Technology, Department of Energy, Mines and Resources, Ottawa, Canada. A method for determining 0.0001-0.10% of selenium

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ISO ISO 10258:2015 Copper sulfide concentrates

ISO 10258:2015 specifies two titrimetric methods for the determination of the copper content of copper sulfide concentrates in the range 15 % (m/m) to 50 % (m/m), using sodium thiosulfate after separation (method 1) or without separation (method 2) of copper from interfering elements.

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(PDF) Determination of Cadmium in Zinc Concentrates

Determination However, the cation separation of cad- can be largely attributed to the fact mium and zinc is equallJ- suitcd to the that, after introduction of the sample 0.01 0.011 Dithizone 0.005 0.005 Dithizone determination of zinc in cttdniiuni suh- into the column, cadmium is obtained 0.003 0.003 Dithizone stances. For instance, ultrapure cad- in less than 1 hour as the first elution 0.1

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The determination of cadmium in zinc concentrates CORE

Abstract. Thesis (B.S.)--University of Illinois, 1910.Typescript.Includes bibliographical references (leaf 14)

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Spectrophotometric determination of germanium in ores

Spectrophotometric determination of germanium in ores, concentrates, zinc-processing products and related materials with phenylfluorone and cetyltrimethylammonium bromide after separation by iron collection and heptane extraction of germanium tetrachloride.

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Electrothermal atomic absorption spectrometric

A simultaneous separation and preconcentration of lead, cadmium, zinc and copper from high-salt content matrices for subsequent electrothermal atomic absorption spectrometric determination was developed. The metals were preconcentrated on a micro-column filled with polyethylene powder impregnated with the complexing agent 1-(2-pyridylazo)-2-naphthol. The determinations, without the

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The separation of micro-amounts of indium from zinc by

The study of a method for the determination of indium in zinc by radioactivation created the necessity for the isolation of indium after irradiation. The separation procedure based on the extractability of InBr3 into diethylether is not achievable in the presence of zinc. The distribution coefficients as determined by the use of radioactive

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Spectrophotometric determination of selenium in

A method for determining 0.0001-0.10% of selenium in copper, nickel, molybdenum, lead and zinc sulphide concentrates is described. After sample decomposition, selenium is reduced to the quadrivalent state by heating in a 4M hydrochloric acid-5M sulphuric acid medium, then extracted into chloroform as the xanthate, and ultimately determined spectrophotometrically with 3,3'-diaminobenzidine.

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Determination of Transition Metals by Ion Chromatography

Determination of transition metals by ion chromatography TECHNICAL NOTE 10. 2 Separation Hydrated and weakly complexed transition metals can be separated as cations on a cation exchange column. By adding a carboxylic acid chelating agent to the eluent, the net charge on the metal is reduced, since the carboxylic acids are anionic in solutions above their pKas. The selectivity of the separation

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AAS determination of Co, Ni, Mn and Cr in ores

Read "AAS determination of Co, Ni, Mn and Cr in ores, concentrates and dusts from copper metallurgy after matrix elements separation by extraction, Analytical and Bioanalytical Chemistry" on DeepDyve, the largest online rental service for scholarly research with thousands of

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ISO 13658:2000(en), Zinc sulfide concentrates

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards

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EP0004226A1 Procédé de séparation des éléments du

L'invention concerne un procédé de séparation par extraction par solvant de composés métalliques contenus dans des solutions aqueuses. Selon l'invention, on met en contact la solution aqueuse avec une phase organique comportant au moins une hydroxyquinoléine substituée. Le procédé de l'invention est plus particulièrement applicable à la séparation d'au moins un élément choisi

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