Selective Recovery of Nonferrous Metal Cations from Wastewater with Weakly Basic Anion Exchangers

2004 ◽  
Vol 77 (1) ◽  
pp. 74-78
Author(s):  
P. N. Chelnakova ◽  
V. A. Kolodyazhnyi
Keyword(s):  
Nonferrous Metal ◽  
Metal Cations ◽  
Anion Exchangers ◽  
Selective Recovery ◽  
Basic Anion

scholarly journals Remazol Black B removal from aqueous solutions and wastewater using weakly basic anion exchange resins

2011 ◽  
Vol 9 (5) ◽  
pp. 867-876 ◽  
Author(s):  
Monika Wawrzkiewicz ◽  
Zbigniew Hubicki
Keyword(s):  
Anion Exchange ◽  
Phenol Formaldehyde ◽  
Reactive Dye ◽  
Anion Exchangers ◽  
Phase Contact Time ◽  
Anion Exchange Resins ◽  
Remazol Black B ◽  
Basic Anion ◽  
Exchange Resins ◽  
Remazol Black

AbstractIn this study, the use of the weakly basic anion exchange resins of phenol-formaldehyde (Amberlyst A 23), polyacrylate (Amberlite IRA 67) and polystyrene (Lewatit MonoPlus MP 62) matrices for removal of the reactive dye Remazol Black B (RBB) from aqueous solution and wastewater were investigated. RBB sorption on the anion exchangers was a time dependent process. Color reduction percentiles of 75.2, 33.9 and 25.1% in wastewater treatment were found after 216 h of phase contact time with Lewatit MonoPlus MP 62, Amberlyst A 23 and Amberlite IRA 67, respectively. Inorganic salts and anionic surfactant action influenced RBB uptake by the anion exchangers. The amounts of dye retained by the anion exchangers increased with a rise in temperature. The maximum sorption capacities calculated from the Langmuir model were 66.4, 282.1 and 796.1 mg g−1 for Amberlite IRA 67, Amberlyst A 23 and Lewatit MonoPlus MP 62, respectively. Regeneration of phenol-formaldehyde and polystyrene resins were possible using 1 M NaOH, 2 M KSCN, 1M KSCN in 40–60% methanol as well as 1 M NaOH in 60% methanol.

Unforseen factors influencing Fe(III)-containing cations sorption on strongly basic anion exchangers

2008 ◽  
Vol 109 (4) ◽  
pp. 2643-2647 ◽  
Author(s):  
Vasile Gutsanu ◽  
Cristina Schitco ◽  
Raisa Drutsa
Keyword(s):  
Anion Exchangers ◽  
Factors Influencing ◽  
Basic Anion

Kinetics and exchange behaviour of certain sulphur anions on strongly basic anion exchangers in aqueous KCl medium

1976 ◽  
Vol 30 (1) ◽  
pp. 93-102 ◽  
Author(s):  
A. A. Abdel-Rassoul ◽  
H. F. Aly ◽  
A. Borhan ◽  
M. M. Abdel-Hamid
Keyword(s):  
Anion Exchangers ◽  
Basic Anion ◽  
Exchange Behaviour

scholarly journals Separation of Y(dcta)- complexes from Nd(dcta)- and Sm(dcta)- complexes on polyacrylate anion-exchangers (Short communication)

2003 ◽  
Vol 68 (3) ◽  
pp. 183-190 ◽  
Author(s):  
Halina Hubicka ◽  
D. Kolodynska
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Anion Exchanger ◽  
Earth Element ◽  
Short Communication ◽  
Frontal Analysis ◽  
Anion Exchangers ◽  
Aminopolycarboxylic Acids ◽  
Basic Anion

The formation of anion rare earth element complexes with aminopolycarboxylic acids gives new possibilities for the separation of these elements on anion exchangers. The higher affinity of the Nd(dcta)- and Sm(dcta)- complexes for the anion- exchangers compared to Y(dcta)- complexes indicates the possibility of yttrium purification as a macrocomponent from the former by frontal analysis. The weakly basic polyacrylate gel anion-exchanger Amberlite IRA 68 was more effective in the purification of Y(III) from Nd(III) and Sm(III) complexes with DCTA than the strongly basic anion-exchangers of this type.

scholarly journals Size-Controlled Transformation of Cu2O into Zero Valent Copper within the Matrix of Anion Exchangers via Green Chemical Reduction

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2629
Author(s):  
Irena Jacukowicz-Sobala ◽  
Ewa Stanisławska ◽  
Agnieszka Baszczuk ◽  
Marek Jasiorski ◽  
Elżbieta Kociołek-Balawejder
Keyword(s):  
Chemical Reduction ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Mechanical Resistance ◽  
Anion Exchangers ◽  
Design And Synthesis ◽  
The Matrix ◽  
Potential Applications ◽  
Great Possibility ◽  
Basic Anion

Composite materials containing zero valent copper (ZVC) dispersed in the matrix of two commercially available strongly basic anion exchangers with a macroreticular (Amberlite IRA 900Cl) and gel-like (Amberlite IRA 402OH) structure were obtained. Cu0 particles appeared in the resin phase as the product of the reduction of the precursor, i.e., copper oxide(I) particles previously deposited in the two supporting materials. As a result of a one-step transformation of preformed Cu2O particles as templates conducted using green reductant ascorbic acid and under mild conditions, macroporous and gel-type hybrid products containing ZVC were obtained with a total copper content of 7.7 and 5.3 wt%, respectively. X-ray diffraction and FTIR spectroscopy confirmed the successful transformation of the starting oxide particles into a metallic deposit. A scanning electron microscopy study showed that the morphology of the deposit is mainly influenced by the type of matrix exchanger. In turn, the drying steps were crucial to its porosity and mechanical resistance. Because both the shape and size of copper particles and the internal structure of the supporting solid materials can have a decisive impact on the potential applications of the obtained materials, the results presented here reveal a great possibility for the design and synthesis of functional nanocrystalline solids.

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