A new diphosphonic acid extractant N,N-n-octylamine di(methylene phenylphosphinic acid) for extraction and separation of zirconium and hafnium in hydrochloric acid

2020 ◽  
Vol 324 (1) ◽  
pp. 339-348
Author(s):  
Jialin Zhao ◽  
Ying Sui ◽  
Xiujing Peng ◽  
Guoxin Sun ◽  
Yu Cui
Keyword(s):  
Hydrochloric Acid ◽  
Diphosphonic Acid ◽  
Extraction And Separation ◽  
Acid Extractant

Enhanced extraction and separation of zirconium(IV) and hafnium(IV) with 3-phenyl-4-benzoyl-5-isoxazolone in presence of various neutral organophosphorus extractants

2007 ◽  
Vol 95 (5) ◽  
Author(s):  
K. Janardhan Reddy ◽  
A. Varada Reddy ◽  
B. S. Shaibu ◽  
M. L. P. Reddy
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Acid Solutions ◽  
Extraction And Separation ◽  
Extraction Behavior ◽  
Hydrochloric Acid Solutions ◽  
Organophosphorus Extractants

Various 3-phenyl-4-aroyl-5-isoxazolones, namely, 3-phenyl-4-benzoyl-5-isoxazolone (HPBI), 3-phenyl-4-(4-fluorobenzoyl)-5-isoxazolone (HFBPI) and 3-phenyl-4-(4-toluoyl)-5-isoxazolone (HTPI) were synthesized and examined with regard to the solvent extraction behavior of Zr(IV) and Hf(IV) from hydrochloric acid solutions. The results demonstrated that Zr(IV) and Hf(IV) extracted into chloroform with 3-phenyl-4-aroyl-5-isoxazolones (HA), as ZrOA

Solvent Extraction and Separation of Palladium(II) from Hydrochloric Acid Medium with N-Benzothiazolylazo Butyl Imide

2011 ◽  
Vol 287-290 ◽  
pp. 1626-1631
Author(s):  
Li Li Chen ◽  
Zu Min Qiu ◽  
Juan Huang
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solvent Extraction ◽  
Magnetic Resonance ◽  
Hydrochloric Acid ◽  
Elemental Analysis ◽  
High Efficiency ◽  
Stoichiometric Ratio ◽  
Loading Capacity ◽  
Extraction And Separation ◽  
Hydrochloric Acid Medium

A new extractant,N-benzothiazolylazo Butyl Imide(BBI),was synthesized and identified by elemental analysis,infrared spectrum and nuclear magnetic resonance (NMR).The extraction of Pd(II) using BBI diluted with CHCl3 show high efficiency in 0-0.4M HCl medium.The dependence of the extraction percentages of Pd(II),Pt(IV)and base metal ions (Fe(III),Cu(II),and Zn(II)) on the HCl and BBI concentrations demonstrate that the idea condition for Pd(II) extraction is 0-0.4M HCl, 0.01-0.05M BBI.The stoichiometric ratio of Pd(II)-BBI complex is 1:2.The loading capacity of Pd(II) is about 0.5g/L using 0.1M BBI,which is comparable to that using DBSO.Complete stripping of Pd(II),Pt(IV) from loaded organic was proposed with 0.5M thiourea and 0.1M HCl.The Pd(II)-BBI-Cl complex has been characterized by elemental analysis,IR and 1HNMR spectra.

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