Poducts

  • SOLVENT EXTRACTION OF ZINC(II) FROM AMMONIA LEACHING

    Keywords: solvent extraction, zinc(II), LIX 54-100, LIX 84 I, TOA Introduction Zinc is a very important metal required for various applications in hydrometallurgical, chemical and textile industries. Zinc is mainly recovered from primary sulphide concentrates and from different secondary resources such as zinc ash, zinc dross, flue dusts of electric arc furnace and brass smelting, automobile

  • The solvent extraction of zinc(II) with aliphatic

    Extraction, of zinc(II) into chloroform containing 1.0 M hexanoic acid and various amounts •» of i-aminobutane. ( o) 1.0 M, (A) 0.3 M, ( D) o.i M. \-l, Altai. Chim. Ada, 45 (1969) 57-63 ÊO G. K. SCHWEITZER, F. C. CLIPFORD extracted with benzene, chloroform, and 4-methyl-2-pentanone containing various concentrations of hcxanoic acid. To ascertain the effects of an adducting agent on zinc

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  • Solvent extraction of zinc from chloride solutions using

    01/12/2018· Solvent extraction of zinc(II) from weakly acidic chloride solutions. In chloride solutions, zinc(II) easily forms chloro-complexes ZnCl i 2 −i where i = 1–4. The concentration of the various forms depends mainly on the concentration of chloride ions, and also on the concentration of metal ions in the aqueous solution. A basic extraction study has been carried out for 1,1′-didecyl-2,2

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  • SOLVENT EXTRACTION OF ZINC(II) ANIONIC g

    ABSTRACT Solvent extraction equilibria of zinc(II)with five 6-diketones(HA)in carbon tetrachloride-aqueous 1 mol dm−3NaN03systems are studied in the absence and presence of tetrabutylammonium ions(tba+The distribution data of zinc(II)in the absence of tba+ are explained in terms of extractions of uncharged ZnA2 complex from the aqueous phase where the ZnA+, ZnA2and ZnA3complexes are

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  • Solvent extraction of zinc(II) with ethylthioacetoacetate

    01/10/1984· Solvent extraction of zinc(II) with ethylthioacetoacetate into ethyl acetate. Sridhar L. Chennuri 1 & B. C. Haldar 1 Journal of Radioanalytical and Nuclear Chemistry volume 84, pages 197 – 200 (1984)Cite this article. 41 Accesses. Abstract. A method has been developed for the extraction of Zn(II) with ethylthioacetoacetate (HETAcAc) into ethyl acetate from an alkaline medium. Various

  • Author: Sridhar L. Chennuri, B. C. Haldar
  • Solvent extraction of zinc/II/ with sulphoxides

    Solvent extraction of zinc/II/ with sulphoxides: Theoretical analysis of extraction behaviour. Authors; Authors and affiliations; M. L. P. Reddy; T. R. Ramamohan; A. S. Reddy; A. D. Damodaran; Article. 50 Downloads; 4 Citations; Abstract. This paper describes a theoretical method for analyzing the behaviour of 65 Zn during solvent extraction from ammonium thiocyanate solutions with dialkyl

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  • Zinc Hydrometallurgy Solvent Extraction

    Part of Zinc Hydrometallurgy and Zinc Solvent Extraction includes the zinc and iron sulphate solution from the hot acid leach will typically contain 80-100 g/l Zn, 20-30 g/l Fe, mostly in the ferric state, and 40-60 g/l free sulphuric acid. The sulphuric acid concentrations will depend upon the leaching techniques used, and the composition of the zinc calcine. In the iron extraction process

  • Highly Selective Solvent Extraction of Zn(II) and Cu(II

    30/03/2007· (2015). Highly Selective Solvent Extraction of Zn(II) and Cu(II) from Acidic Aqueous Chloride Solutions with Mixture of Cyanex 272 and Aliquat 336. Separation Science and Technology: Vol. 50, No. 9, pp. 1302-1309.

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  • Liquid- Liquid Extraction of Zinc(II) From Acid Media with

    The solvent extraction of zinc(II), cadmium(II) and chromium(III) from phosphoric acid solutions by tri-n-butyl phosphate in kerosene as diluent was investigated [13].The extraction and separation of zinc(II), manganese, cobalt and nickel from nickel laterite bacteria leach liquor were carried out using sodium salts of TOPS-99 and Cyanex 272 in kerosene [14]. The selective removal of Zinc(II

  • Author: Maria de Lourdes Guarnieri Barbosa Bueno
  • Liquid- Liquid Extraction of Zinc(II) From Acid Media

    The solvent extraction of zinc(II), cadmium(II) and chromium(III) from phosphoric acid solutions by tri-n-butyl phosphate in kerosene as diluent was investigated [13]. The extraction and separation of zinc(II), manganese(II), cobalt(II) and nickel(II) from nickel laterite bacteria leach liquor were carried out using sodium salts of TOPS-99 and Cyanex 272 in kerosene [14]. The selective removal

  • Author: Maria de Lourdes Guarnieri Barbosa Bueno
  • Solvent extraction of Zn(II) by Cyanex 923 and its

    Solvent extraction of Zn(II) by Cyanex 923 and its application to a solid‐supported liquid membrane system. Francisco José Alguacil. Corresponding Author. E-mail address: [email protected] Centro Nacional de Investigaciones Metalúrgicas (CSIC), Avda Gregorio del

  • Solvent extraction of zinc(II) with ethylthioacetoacetate

    Solvent extraction of zinc(II) with ethylthioacetoacetate into ethyl acetate. Sridhar L. Chennuri 1 & B. C. Haldar 1 Journal of Radioanalytical and Nuclear Chemistry volume 84, pages 197 – 200 (1984)Cite this article. 41 Accesses. Abstract. A method has been developed for the extraction of Zn(II) with ethylthioacetoacetate (HETAcAc) into ethyl acetate from an alkaline medium. Various

  • Solvent extraction of zinc/II/ with sulphoxides

    Solvent extraction of zinc/II/ with sulphoxides: Theoretical analysis of extraction behaviour. Authors; Authors and affiliations; M. L. P. Reddy; T. R. Ramamohan; A. S. Reddy; A. D. Damodaran; Article. 50 Downloads; 4 Citations; Abstract. This paper describes a theoretical method for analyzing the behaviour of 65 Zn during solvent extraction from ammonium thiocyanate solutions with dialkyl

  • Solvent extraction of zinc(II), cadmium(II), mercury(II

    Solvent extraction of zinc(II), cadmium(II), mercury(II) and bismuth(lII) using n-octy laniline and their separations S R Kuchekar, H R Aher & M B Chavan* P.G. Department of Analytical Chemistry, P.V.P. College, Pravaranagar, At/Post. Loni, Tal. Rahata, Dist. Ahmednagar, (M.S.) India • Received 17 July 2001 .. revised 19 December 2002 Solvent extraction behaviour of zinc(Il), cadmium(II

  • CiNii 論文 Solvent Extraction of Zinc(II) with 1

    The solvent extraction of zinc(II) in 0.1mol dm-3 sodium chloride solutions with 1-naphthoic acid (HA) into chloroform was measured in the absence and presence of tetrabutylammonium ions (tba<sup>+</sup>) or trioctylphosphine oxide (TOPO). The extraction of zinc(II) with 1-naphthoic acid was rather poor and the extracted species were in the form of ZnA<sub>2</sub> and

  • Solvent Extraction Studies of Zinc(II) and Cadmium(II

    Solvent Extraction Studies of Zinc(II) and Cadmium(II) from a Chloride Medium with Mixtures of Neutral Organophosphorus Extractants and Amine Extractants . By Tian MM, Mu FT, Jia QO, Quan XJ and Liao WP. Cite . BibTex; Full citation Abstract. In the present study, the extraction of zinc(II) and cadmium(II) with mixtures of neutral organophosphorus extractants (aliphatic trialkyl phosphine

  • Recovery of Zinc(II) from HCl Spent Pickling Solutions by

    Recovery of zinc(II) from HCl spent pickling solutions by solvent extraction using CYANEX921, CYANEX923, CYANEX302, tributyl phosphate, and ALAMINE336 extractants was studied. Tributyl phosphate was selected as suitable extractant. It permitted both effective zinc(II) extraction and the stripping from loaded organic phase with water. The presence of iron(II) did not affect zinc extraction,

  • Extraction of zinc(II) from ammoniacal solution into

    27/07/2012· BACKGROUND: Separation and recovery of zinc from ammoniacal solutions with solvent extraction is very important in the hydrometallurgical industry. Ionic liquids (ILs) have considerable potential for the separation of metal ions. The extraction behaviour of zinc from ammoniacal solution into three hydrophobic ILs was investigated using β‐diketone as the extractant.

  • Thermodynamics of synergistic solvent extraction of

    OSTI.GOV Technical Report: Thermodynamics of synergistic solvent extraction of zinc(II) Thermodynamics of synergistic solvent extraction of zinc(II) Full Record; Other Related Research; Abstract. The thermodynamics of the synergistic solvent extraction of zinc(II) by TTA-TBP mixtures were studied using radiochemical techniques. The thermodynamic values of the extraction equations

  • Liquid- Liquid Extraction of Zinc(II) From Acid Media

    The solvent extraction of zinc(II), cadmium(II) and chromium(III) from phosphoric acid solutions by tri-n-butyl phosphate in kerosene as diluent was investigated [13]. The extraction and separation of zinc(II), manganese(II), cobalt(II) and nickel(II) from nickel laterite bacteria leach liquor were carried out using sodium salts of TOPS-99 and Cyanex 272 in kerosene [14]. The selective removal

  • Solvent extraction of Zn(II) by Cyanex 923 and its

    Solvent extraction of Zn(II) by Cyanex 923 and its application to a solid‐supported liquid membrane system. Francisco José Alguacil. Corresponding Author. E-mail address: [email protected] Centro Nacional de Investigaciones Metalúrgicas (CSIC), Avda Gregorio del

  • Extraction of zinc(II) from ammoniacal solution into

    27/07/2012· BACKGROUND: Separation and recovery of zinc from ammoniacal solutions with solvent extraction is very important in the hydrometallurgical industry. Ionic liquids (ILs) have considerable potential for the separation of metal ions. The extraction behaviour of zinc from ammoniacal solution into three hydrophobic ILs was investigated using β‐diketone as the extractant.

  • The Solvent Extraction of Zinc(II) in Sodium Perchlorate

    The solvent extraction of zinc(II) in 1M sodium perchlorate ionic media containing chloride, bromide, or iodide ions at 25°C was determined as a function of the halide-ion (X−) concentration by usi...

  • CiNii 論文 Solvent Extraction of Zinc(II) with 1

    The solvent extraction of zinc(II) in 0.1mol dm-3 sodium chloride solutions with 1-naphthoic acid (HA) into chloroform was measured in the absence and presence of tetrabutylammonium ions (tba<sup>+</sup>) or trioctylphosphine oxide (TOPO). The extraction of zinc(II) with 1-naphthoic acid was rather poor and the extracted species were in the form of ZnA<sub>2</sub> and

  • Extraction of zinc(II) from ammoniacal solution into

    Extraction of zinc(II) from ammoniacal solution into hydrophobic ionic liquids. Abstract BACKGROUND: Separation and recovery of zinc from ammoniacal solutions with solvent extraction is very important in the hydrometallurgical industry. Ionic liquids (ILs) have considerable potential for the separation of metal ions. The extraction behaviour of zinc from ammoniacal solution into three

  • Solvation Method for Separation and Determination Zinc(II

    Keyword: Zinc (II), Acetophenone, Solvent extraction INTRODUCTION. Solvent extraction with different application use on a wide range For separation preconcentration and determination a lot of metal cations, as it is sensitive methods. By combined solvation as un application for solvent extraction with cloud point extraction in order of separation and determination of magnesium (II) as

  • LIQUID LIQUID EXTRACTION AND SEPARATION OF ZINC (II)

    The solvent extraction of Zinc (II) from thiocyanate and sulphuric acid media using N-n-hexylaniline using xylene is described . The effect of acid concentration, extractant, diluent and aqueous to organic phase ratio on the extraction have been investigated .The nature of the probable extracted species has been determined. The effect of several foreign ions on the extraction of Zn(II) has

  • The Solvent Extraction of Zinc(II) in Sodium Perchlorate

    公益社団法人 日本化学会 The solvent extraction of zinc(II) in 1M sodium perchlorate ionic media containing chloride, bromide, or iodide ions at 25°C was determined as a function of the halide-ion (X − ) concentration by using the zinc-65 tracer. From the extraction data with isopropyltropolone (IPT) in chloroform, the formation of the ZnX<SUP>+</SUP> complex was observed, but the

  • Solvent Extraction Equilibrium of Zinc(II) from

    Solvent Extraction Equilibrium of Zinc(II) from Ammonium Chloride Medium by CYANEX 923 in Solvesso 100. The extraction equilibrium of zinc in ammonium chloride medium with CYANEX 923 (phosphine oxides mixture) in Solvesso 100 has been investigated. The distribution coefficient of zinc was independent of the equilibrium pH; this independence being attributable to a solvation extraction

  • EXTRACTION OF ZINC(II) FROM MODEL HYDROCHLORIC ACID

    zinc(II) exceeds 0.5 g/dm3. Such solutions are obtained when the spent pickling liquor is used for depleting the bad quality zinc protective layers. Solvent extraction is one of different techniques which can be used to recover zinc(II) from such solutions [Schügerl et al., 1996; Bart, 2000]. Tributyl phosphate