scholarly journals PROCESSING OF PLUTONIUM BY ION EXCHANGE. III. KINETIC AND EQUILIBRIUM PARAMETERS FOR THE CALCULATION OF FIXED-BED COLUMN PERFORMANCE

1963 ◽  
Author(s):  
D.B. James ◽  
R.S. Cooper
Keyword(s):  
Ion Exchange ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Column Performance

scholarly journals Investigations on the batch and fixed-bed column performance of fluoride adsorption by Kanuma mud

Desalination ◽  
2011 ◽  
Vol 268 (1-3) ◽  
pp. 76-82 ◽  
Author(s):  
Nan Chen ◽  
Zhenya Zhang ◽  
Chuanping Feng ◽  
Miao Li ◽  
Rongzhi Chen ◽  
...  
Keyword(s):  
Fixed Bed ◽  
Fixed Bed Column ◽  
Fluoride Adsorption ◽  
Column Performance

scholarly journals Development of a Combined Leaching and Ion-Exchange System for Valorisation of Spent Potlining Waste

2020 ◽  
Vol 11 (10) ◽  
pp. 5467-5481 ◽  
Author(s):  
Thomas J. Robshaw ◽  
Keith Bonser ◽  
Glyn Coxhill ◽  
Robert Dawson ◽  
Mark D. Ogden
Keyword(s):  
Ion Exchange ◽  
Solid Waste ◽  
Exchange Resin ◽  
Waste Product ◽  
Fixed Bed ◽  
Ion Exchange Resin ◽  
Exchange System ◽  
Fixed Bed Column ◽  
Chemical Leaching ◽  
Global Challenge

Abstract This work aims to contribute to addressing the global challenge of recycling and valorising spent potlining; a hazardous solid waste product of the aluminium smelting industry. This has been achieved using a simple two-step chemical leaching treatment of the waste, using dilute lixiviants, namely NaOH, H2O2 and H2SO4, and at ambient temperature. The potlining and resulting leachate were characterised by spectroscopy and microscopy to determine the success of the treatment, as well as the morphology and mineralogy of the solid waste. This confirmed that the potlining samples were a mixture of contaminated graphite and refractory materials, with high variability of composition. A large quantity of fluoride was solublised by the leaching process, as well as numerous metals, some of them toxic. The acidic and caustic leachates were combined and the aluminium and fluoride components were selectively extracted, using a modified ion-exchange resin, in fixed-bed column experiments. The resin performed above expectations, based on previous studies, which used a simulant feed, extracting fluoride efficiently from leachates of significantly different compositions. Finally, the fluoride and aluminium were coeluted from the column, using NaOH as the eluent, creating an enriched aqueous stream, relatively free from contaminants, from which recovery of synthetic cryolite can be attempted. Overall, the study accomplished several steps in the development of a fully-realised spent potlining treatment system. Graphic Abstract

Binary Adsorption in a Fixed-Bed Column Packed with an Ion-Exchange Resin

1995 ◽  
Vol 30 (13) ◽  
pp. 2731-2746 ◽  
Author(s):  
Run-Tun Huang ◽  
Teh-Liang Chen ◽  
Hung-Shan Weng
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Fixed Bed ◽  
Ion Exchange Resin ◽  
Binary Adsorption ◽  
Fixed Bed Column

Comparison of Phenomenological and Hybrid Models in the Description of the Ion Exchange Process in a Fixed-Bed Column

2013 ◽  
Vol 48 (7) ◽  
pp. 1102-1110 ◽  
Author(s):  
T. D'Arisbo ◽  
E. A. Silva ◽  
C. E. Borba ◽  
I. C. Ostroski ◽  
P. A. Arroyo ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Exchange Process ◽  
Fixed Bed ◽  
Hybrid Models ◽  
Fixed Bed Column ◽  
Ion Exchange Process
Sign in / Sign up

Export Citation Format

Share Document