Removal of trace amounts of strontium from aqueous solutions by ion flotation. II Continuous scale operation

2007 ◽  
Vol 16 (10) ◽  
pp. 297-300 ◽  
Author(s):  
B. M. Davis ◽  
F. Sebba
Keyword(s):  
Aqueous Solutions ◽  
Ion Flotation ◽  
Continuous Scale

Kinetics of ion flotation of Co(II)–EDTA complexes from aqueous solutions

2015 ◽  
Vol 103 (9) ◽  
Author(s):  
Mohamed A. Soliman ◽  
Ghada M. Rashad ◽  
Mamdoh R. Mahmoud
Keyword(s):  
Aqueous Solutions ◽  
Cetylpyridinium Chloride ◽  
Optimum Conditions ◽  
Flotation Kinetics ◽  
Flow Rates ◽  
Flotation Rate ◽  
Ion Flotation ◽  
Ph Values ◽  
Edta Complexes ◽  
Kinetics Of

AbstractThe flotation kinetics of Co(II)-EDTA complexes from aqueous solutions using cetylpyridinium chloride (CPyCl) is studied and discussed in the present work. The effects of many variables on the ultimate recovery and the flotation rate are investigated. The data obtained from solutions of different pH values showed that Co(II)-EDTA complexes are successfully floated at pH 7.8. While at pH 3.4 and 11.2, both the ultimate recovery and the flotation rate are dependent on the concentration of CPyCl. Flotation of Co(II)-EDTA at different air flow rates, CPyCl concentrations and ionic strength showed that the ultimate recovery and the flotation rate are markedly affected. The other parameters (cobalt, EDTA and ethanol concentrations) had no effect on the ultimate recovery, while significantly affected the flotation rate. At the optimum conditions (Co(II) : EDTA = 1:1; CPyCl : Co(II) = 4:1; pH7.8;

Recovery and separation of Ce3+ and Y3+ ions from aqueous solutions by ion flotation

2009 ◽  
Vol 82 (8) ◽  
pp. 1370-1374 ◽  
Author(s):  
D. E. Chirkst ◽  
O. L. Lobacheva ◽  
I. V. Berlinskii ◽  
M. A. Sulimova
Keyword(s):  
Aqueous Solutions ◽  
Ion Flotation

Removal of rhodamine B (a basic dye) and thoron (an acidic dye) from dilute aqueous solutions and wastewater simulants by ion flotation

2010 ◽  
Vol 44 (5) ◽  
pp. 1449-1461 ◽  
Author(s):  
Kamal Shakir ◽  
Ahmed Faouzy Elkafrawy ◽  
Hussein Fouad Ghoneimy ◽  
Shokry Gad Elrab Beheir ◽  
Mamdoh Refaat
Keyword(s):  
Aqueous Solutions ◽  
Rhodamine B ◽  
Ion Flotation ◽  
Basic Dye ◽  
Dilute Aqueous Solutions

scholarly journals Removal of Zn(II) and Mn(II) by Ion Flotation from Aqueous Solutions Derived from Zn-C and Zn-Mn(II) Batteries Leaching

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1335
Author(s):  
Agnieszka Sobianowska-Turek ◽  
Katarzyna Grudniewska ◽  
Paweł Maciejewski ◽  
Małgorzata Gawlik-Kobylińska
Keyword(s):  
Aqueous Solutions ◽  
Organic Compounds ◽  
Process Parameters ◽  
Atmospheric Pressure ◽  
Optimal Conditions ◽  
Flotation Process ◽  
Foaming Agent ◽  
Ion Flotation ◽  
Dilute Aqueous Solutions ◽  
Triton X

The Zn(II) and Mn(II) removal by an ion flotation process from model and real dilute aqueous solutions derived from waste batteries was studied in this work. The research aimed to determine optimal conditions for the removal of Zn(II) and Mn(II) from aqueous solutions after acidic leaching of Zn-C and Zn-Mn waste batteries. The ion flotation process was carried out at ambient temperature and atmospheric pressure. Two organic compounds used as collectors were applied, i.e., m-dodecylphosphoric acid 32 and m-tetradecylphosphoric 33 acid in the presence of a non-ionic foaming agent (Triton X-100, 29). It was found that both compounds can be used as collectors in the ion flotation for Zn(II) and Mn(II) removal process. Process parameters for Zn(II) and Mn(II) flotation have been established for collective or selective removal metals, e.g., good selectivity coefficients equal to 29.2 for Zn(II) over Mn(II) was achieved for a 10 min process using collector 32 in the presence of foaming agent 29 at pH = 9.0.

Ultrathin frozen sections of yeast without aldehyde prefixation

1978 ◽  
Vol 36 (2) ◽  
pp. 58-59
Author(s):  
K. J. Böhm ◽  
a. E. Unger
Keyword(s):  
Aqueous Solutions ◽  
Biological Material ◽  
Yeast Cells ◽  
Frozen Sections ◽  
Good Preservation ◽  
Ultrathin Frozen Sections

During the last years it was shown that also by means of cryo-ultra-microtomy a good preservation of substructural details of biological material was possible. However the specimen generally was prefixed in these cases with aldehydes.Preparing ultrathin frozen sections of chemically non-prefixed material commonly was linked up to considerable technical and manual expense and the results were not always satisfying. Furthermore, it seems to be impossible to carry out cytochemical investigations by means of treating sections of unfixed biological material with aqueous solutions.We therefore tried to overcome these difficulties by preparing yeast cells (S. cerevisiae) in the following manner:

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