scholarly journals Recovery of niobium from wastes generated in titanium production by cation exchange sorbents

2021 ◽  
Vol 318 (3) ◽  
pp. 97-103
Author(s):  
О. S. Baigenzhenov ◽  
◽  
А. М. Toishybek ◽  
А. Т. Khabiyev ◽  
I.O. Aimbetova ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Ion Exchange ◽  
Cation Exchange ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Waste Processing ◽  
Solution Composition ◽  
Two Stage ◽  
Second Stage ◽  
Sorption Efficiency

This article presents the technology of niobium recovery by processing of chloride residues generated during the chlorination of titanium slags. For waste processing, a two-stage leaching technology is proposed. Water is used at the first stage of leaching and hydrochloric acid 4.0 M is used at the second stage. For the purpose of sorption of niobium from the solution composition obtained during leaching, cation-exchange sorbents Purolite-C104 and KU-2-8 H were used. By the usage of Purolite-C104 ion exchange resin the sorption efficiency of niobium from a solution with a concentration of 2 g/l was about 71.0 % (0.071 g/g) in 3.5 hours, while for KU-2-8 H ion exchange resin, sorption efficiency was about 89.0 % (0.089 g/g).

Study on Treatment of Heavy Metal Lons of Chemical Wastewater by Ion Exchange Resin

2014 ◽  
Vol 955-959 ◽  
pp. 2230-2233 ◽  
Author(s):  
Yong Gang Zeng ◽  
Long Li
Keyword(s):  
Heavy Metal ◽  
Ion Exchange ◽  
Cation Exchange ◽  
Flow Velocity ◽  
Metal Ion ◽  
Exchange Resin ◽  
Removal Rate ◽  
Cation Exchange Resin ◽  
Ion Exchange Resin ◽  
Resin Method

This paper used the ion exchange resin method to treat the heavy metal ion Cu2+ of a chemical wastewater and studied the flow velocity, pH and the temperature’s effect on Cu2+ removal effect by macroporous strongly acidic styrene type cation exchange resin D001. The results shown that: when the flow velocity was 1.5 mL/min, pH was 6.0 and the temperature was 30°C, the removal rate of Cu2+ by D001 reached 99.8%. The chemical wastewater could achieve the wastewater’s discharge standard.

THE PARTIAL SEPARATION OF Na22 FROM Na24 BY ION EXCHANGE CHROMATOGRAPHY

1956 ◽  
Vol 34 (1) ◽  
pp. 65-74 ◽  
Author(s):  
R. H. Betts ◽  
W. E. Harris ◽  
Margaret D. Stevenson
Keyword(s):  
Hydrochloric Acid ◽  
Ion Exchange ◽  
Cation Exchange ◽  
Exchange Resin ◽  
Isotope Effects ◽  
Cation Exchange Resin ◽  
Ion Exchange Chromatography ◽  
Exchange Chromatography ◽  
Partial Separation ◽  
Chloride Salts

Mixtures of the radionuclides Na22 and Na24, as the chloride salts, have been partially separated by chromatographic methods. A column 102 cm. in length containing the cation exchange resin Dowex 50 was used. The eluant was 0.7 M hydrochloric acid. Na22 is held more strongly by the resin than is Na24. The most effective separations were obtained at 25 °C and 5.5 °C.; experiments at 48 °C and 68 °C showed much smaller isotope effects.

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