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Author :
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (921 download)
Download or read book The Separation of Nickel from Cobalt by Solvent Extraction with a Carboxylic Acid written by and published by . This book was released on 1969 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. J. Jacobs
Publisher : Elsevier
ISBN 13 : 1483286142
Total Pages : 344 pages
Book Rating : 4.4/5 (832 download)
Download or read book Nickel & Cobalt Extraction Using Organic Compounds written by J. J. Jacobs and published by Elsevier. This book was released on 2016-01-22 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a unique survey of the information contained in the patent literature concerning solvent extraction of nickel and cobalt. All the available data from the patent documentation is classified systematically for easy retrieval of authors, patents or assignees. Presented in three parts, the first deals with leaching of nickeliferous or cobaltiferous sources using organic reagents; the second reviews the solvent extraction of nickel or cobalt, or both from solutions; the third covers solvent extraction methods used to remove impurities from solutions containing nickel or cobalt. Cites over 300 patent documents.
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Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (921 download)
Download or read book Separation of Nickel and Cobalt from Calcium, Magnesium and Manganese by Solvent Extraction with Synergistic Mixtures of Carboxylic Acids written by and published by . This book was released on 2004 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The separation of nickel and cobalt from calcium, magnesium and manganese by solvent extraction using synergistic mixtures of carboxylic acids was studied. The Mintek synergist (0.25 M), in combination with a branched carboxylic acid, specifically Neodecanoic acid (0.50 M in Sasol C12-C13 aliphatic diluent) gives a good separation between the extraction vs. pH curves for nickel and calcium (2.40 pH units) and a reasonable separation between cobalt and manganese (0.9 pH units). In a batch countercurrent extraction experiment with three stages at unit phase ratio and an equilibrium pH of 5.9, high recoveries of nickel (99.9 per cent) and cobalt (84.7 per cent) were obtained, with only small co-extractions of calcium (1.5 per cent), manganese (2.7 per cent) and magnesium (0.04 per cent). To increase the recovery of cobalt, the pH in extraction would have to be increased slightly.
Author : Richard G. Sandberg
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (91 download)
Download or read book Cobalt and Nickel Removal from Zinc Sulfate Electrolyte by Solvent Extraction and Precipitation Techniques written by Richard G. Sandberg and published by . This book was released on 1978 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Parkman T. Brook
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (91 download)
Download or read book Separation and Recovery of Cobalt and Nickel by Solvent Extraction and Electrorefining written by Parkman T. Brook and published by . This book was released on 1963 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Parkman T. Brook
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (91 download)
Download or read book Electrochemical Recovery of High-purity Nickel and Cobalt from Crude Nickel and Ferronickel written by Parkman T. Brook and published by . This book was released on 1970 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 29 pages
Book Rating : 4.:/5 (921 download)
Download or read book The Solvent Extraction of Nickel and Cobalt by Mixtures of Carboxylic Acids and Pyridinecarboxylate Esters written by and published by . This book was released on 1995 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of fifteen pyridinecarboxylate esters has been synthesized with the structure C5H4N.CO.OR, in which the carboxylate group is situtated at the 2-,3-, or 4-position on the pyridine ring, and R = n-octyl, 2-ethylhexyl, 2-octyl, cyclooctyl, or cyclohexyl. The presence of these compounds causes substantial synergistic shifts in the pH50 values for the extraction of nickel ( up to about 2 pH units) and cobalt (up to about 1.5 pH units) by sloutions of carboxylic acids in xylene. The extent of the synergistic shift depends on the nature of the carboxylic acid, and increases in the order: n-ostanoic
Download or read book Solvent Extraction of Nickel and Cobalt by Mixtures of Carboxylic Acids and Non-chelating Oximes written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of non-chelating oximes on the solvent extraction of nickel(II) and cobalt(II) by solutions of carboxylic acids (H2A2) in xylene has been studied. Synergistic enhancements of extraction were found with aldoximes, but not with ketoximes. The synergistic effects are larger for nickel than for cobalt, with the result that the selectivities of the carboxylic acids for nickel over cobalt are considerably enhanced in the presence of aldoximes. The influence of the molecular structure of the oxime and carboxylic acid components upon the synergistic effects is rationalized in terms of the prevailing stereochemical and electronic effects. The extracted complexes were shown to be octahedral in structure, with the compositions NiA2(oxime)4 and CoA2(oxime)4. The mixed reagent systems may prove useful for the selective extraction of nickel in the presence of cobalt.
Author : William L. Griffith
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Extraction of Cobalt from Nickel in a Pulse Column written by William L. Griffith and published by . This book was released on 1952 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Developments in the Separation of Nickel and Cobalt from Sulphate Solutions by Solvent Extraction written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The properties of some recently developed solvent-extraction reagents for the separation of cobalt and nickel in sulphate solutions are reported. New commercial extractants based on alkyl phosphonic and alkyl phosphinic acids are described. These reagents show much improved selectivity for cobalt compared with established extractants. Some novel extractants developed at Mintek for the selective recovery of nickel in the presence of cobalt are also described. These reagents, which are based on mixtures of carboxylic acids and non-chelating oximes, are of interest in that no commercial nickel-selective reagents are currently available. Graphs showing metal loading and stripping, and pH-functionality, are presented, together with details of the metal separations achieved in batch counter-current-extraction experiments with the various reagents. (AUAB).
Author : Larry R. Penner
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.3/5 (91 download)
Download or read book Neodecanoic Acid as a Co3+ Solvent Extractant written by Larry R. Penner and published by . This book was released on 1983 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (921 download)
Download or read book The Effect of Reagent Structure on the Extraction and Separation of Nickel and Cobalt by Mixtures of Carboxylic Acids and Pyridine Derivatives written by and published by . This book was released on 1999 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of alkylpyridines and related compounds upon the extraction of divalent nickel and cobalt from nitrate media by solutions of some carboxylic acids in xylene was studied. Addition of the pyridine compounds caused substantial synergistic shifts in the pH50 values for the extraction of both metals, and these were greater for nickel than for cobalt in any given system. With regard to the influence of the nature of the individual extractants on the extent of the synergistic effects, the shifts in the pH50 values were found to increase with increasing pKa and with increasing steric bulk of the carboxylic acid component. These observations can be rationalized in terms of the ease of replacement of solvating carboxylic acid ligands (HA) by the N-donor ligands (L). In contrast, the synergistic effects were somewhat less dependent on the structure of the pyridine derivative, and the shifts did not usually decrease significantly when L contained an electron-withdrawing group. However, the shifts were greatly decreased when the substituent group on the pyridine ring was located adjacent to the nitrogen atom (i.e. the metal-coordinating site), presumably for steric reasons. Batch countercurrent experiments were carried out with an aqueous feed solution containing 5 gL-1 nickel and 5 gL-1 cobalt, and an organic phase containing 0.50 M 4-(5-nonyl)pyridine and 0.25 M 4-^Itert^R-bytylbenzoic acid. Four extraction stages of pH 4.9 and two scrubbing stages were use to obtain a 99.6% pure nickel product and a 98.7% pure cobalt product. Complete stripping of the loaded organic phase was readily achieved by contact with dilute mineral acid to give an equilibrium pH of 3.0.
Author : P. Fahim
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (112 download)
Download or read book Extraction and Separation of Cobalt and Nickel by Solvent Extraction written by P. Fahim and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael John Ferrante
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (91 download)
Download or read book An Electrolytic Method for Separating Nickel and Cobalt written by Michael John Ferrante and published by . This book was released on 1959 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download The Solvent Extraction Separation of Cobalt, Nickel and Other Metals Using 2-ethyl Hexyl Phosphonic Acid Mono 2-ethyl Hexyl Ester [microform] : Equilibrium and Kinetic Studies PDF Online Free](https://books.google.com/books/content/images/frontcover/inCRwgEACAAJ?fife=w200-h370)
Author : David Bruce Dreisinger
Publisher : National Library of Canada
ISBN 13 : 9780315178908
Total Pages : pages
Book Rating : 4.1/5 (789 download)
Download or read book The Solvent Extraction Separation of Cobalt, Nickel and Other Metals Using 2-ethyl Hexyl Phosphonic Acid Mono 2-ethyl Hexyl Ester [microform] : Equilibrium and Kinetic Studies written by David Bruce Dreisinger and published by National Library of Canada. This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Adrian
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (864 download)
Download or read book Kinetic and Distribution Studies on the Separation of Cobalt and Nickel by Solvent Extraction with Naphthenic Acid written by A. Adrian and published by . This book was released on 1965 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Separation and Recovery of Cobalt and Nickel by Solvent Extraction and Electrorefining. P.T. Brooks and J.B. Rosenbaum written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
