Experimental Study on Extracting Scandium from HCl Leachate of Chloride Dust

2012 ◽  
Vol 554-556 ◽  
pp. 2054-2057
Author(s):  
Song Li Liu ◽  
Xue Feng Zhang
Keyword(s):  
Experimental Study ◽  
Solvent Extraction ◽  
Organic Phase ◽  
Extraction System ◽  
Effective Separation ◽  
Sulfonated Kerosene ◽  
Extraction Experiment

Solvent extraction experiment of Sc was investigated.The extraction system consisted of 25% TBP+60% sulfonated kerosene +15% reforming agents. The results show that the extraction rates of Sc can reach up to 95%.The removing of Fe，Mn and Ti can be reached 99.1%, 99.4% and 99.5% respectively.The anti-extraction rates from organic phase with NaOH reach up to 99.7 % with effective separation from Fe，Mn and Ti.

scholarly journals Experimental study of phase entrainment in copper solvent extraction

DYNA ◽  
2020 ◽  
Vol 87 (213) ◽  
pp. 85-90
Author(s):  
Patricio Navarro Donoso ◽  
Cristian Vargas Riquelme ◽  
Jonathan Castillo ◽  
Rossana Sepúlveda
Keyword(s):  
Experimental Study ◽  
Solvent Extraction ◽  
Aqueous Phase ◽  
Organic Phase ◽  
Copper Concentration ◽  
Mixing Time ◽  
Phase 1 ◽  
Initial Ph ◽  
Copper Solvent Extraction ◽  
Displacement Speed

The entrainment of the organic phase in the aqueous applied to typical solutions in a solvent extraction of copper process was studied. The organic phase used is composed of the commercial extractant LIX 984-N diluted in Shellsol 2046 AR. The aqueous phase contains 6 g/L of Cu2+, at pH 2  and 20 ºC. The variables studied were: mixing speed of 400 to 1000 rpm; mixing time of 3 to 30 minutes; initial pH of the electrolyte 2, 3, and 4; percentage of extractant in the organic phase 10 to 30% v/v; and copper concentration in the aqueous phase 1 to 6 g/L. It was determined that the entrainment of the organic phase in the aqueous is determined by the physical properties of the phases in equilibrium and by the system’s hydrodynamics, and it is a phenomenon that involves the advancing speed of the interphase (or dispersion band) and the displacement speed of the organic drops.

scholarly journals Solvent extraction of Palladium (II) and effective separation of Palladium(II) and Platinum(IV) with synthetic sulfoxide MSO

2013 ◽  
Vol 49 (1) ◽  
pp. 57-63 ◽  
Author(s):  
L. Pan ◽  
X. Bao ◽  
G. Gu
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Organic Phase ◽  
Contact Time ◽  
Phase Ratio ◽  
Separation Coefficient ◽  
Mixed Solution ◽  
Acid Media ◽  
Effective Separation ◽  
Hydrochloric Acid Media

Extraction performances of Pd(II) and separation behaviors of Pd(II) and Pt(IV) were studied using a synthetic sulfoxide MSO as extractant from hydrochloric acid media. Pd(II) transferring was depended strongly on the MSO and HC1 concentration, phase ratio (O/A), contact time, and Pd(II) concentration in stock solution. By controlling MSO and HC1 concentration, Pd(II) and Pt(IV) could be separated effectively and the highest separation coefficient reached 758 when MSO and HC1 concentration were fixed at 25% (V/V) and 1.5 M, respectively. Pd(II) loaded in organic phase was stripped effectively with a mixed solution containing NH4C1 and ammonia solutes. The percentage stripping of Pd(II) was 95.1% using 3% (?) NH4C1 and 3 M NH3H2O.

Effective separation of toxic phenol from aquatic system using membrane assisted solvent extraction system

2021 ◽  
Vol 221 ◽  
pp. 316-327
Author(s):  
E. Poonguzhali ◽  
Ashish Kapoor ◽  
P. Senthil Kumar ◽  
S. Prabhakar
Keyword(s):  
Solvent Extraction ◽  
Aquatic System ◽  
Extraction System ◽  
Effective Separation ◽  
Solvent Extraction System

scholarly journals Study on the Effect and Mechanism of Impurity Aluminum on the Solvent Extraction of Rare Earth Elements (Nd, Pr, La) by P204-P350 in Chloride Solution

Minerals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 61
Author(s):  
Wenjie Zhang ◽  
Xian Xie ◽  
Xiong Tong ◽  
Yunpeng Du ◽  
Qiang Song ◽  
...  
Keyword(s):  
Rare Earth ◽  
Solvent Extraction ◽  
Rare Earth Elements ◽  
Organic Phase ◽  
Extraction Process ◽  
Industrial Applications ◽  
Separation And Purification ◽  
Aluminum Ion ◽  
Hydrochloric Acid Medium ◽  
Impurity Ion

Solvent extraction is the most widely used method for separation and purification of rare earth elements, and organic extractants such as di(2-ethylhexyl) phosphoric acid (P204) and di(1-methyl-heptyl) methyl phosphonate (P350) are most commonly used for industrial applications. However, the presence of impurity ions in the feed liquid during extraction can easily emulsify the extractant and affect the quality of rare earth products. Aluminum ion is the most common impurity ion in the feed liquid, and it is an important cause of emulsification of the extractant. In this study, the influence of aluminum ion was investigated on the extraction of light rare earth elements by the P204-P350 system in hydrochloric acid medium. The results show that Al3+ competes with light rare earths in the extraction process, reducing the overall extraction rate. In addition, the Al3+ stripping rate is low and there is continuous accumulation of Al3+ in the organic phase during the stripping process, affecting the extraction efficiency and even causing emulsification. The slope method and infrared detection were utilized to explore the formation of an extraction compound of Al3+ and the extractant P204-P350 that entered the organic phase as AlCl[(HA)2]2P350(o).

scholarly journals Recovery of boron from brines with high magnesium content by solvent extraction using aliphatic alcohol

RSC Advances ◽  
2021 ◽  
Vol 11 (26) ◽  
pp. 16096-16105
Author(s):  
Zhenya Xu ◽  
Hui Su ◽  
Jian Zhang ◽  
Wensen Liu ◽  
Zhaowu Zhu ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Aliphatic Alcohol ◽  
Salt Lake ◽  
Magnesium Content ◽  
Extraction System ◽  
Commercial Application ◽  
Simulation Process ◽  
Multi Stage ◽  
Counter Current ◽  
High Magnesium Content

The multi-stage counter-current simulation process showed an extraction system with great potential for commercial application in boron recovery from salt lake brines with high magnesium content.

scholarly journals Solvent Extraction Equilibrium in the CuSO4–H2SO4–LIX 984–ESCAID 103 Systern

1999 ◽  
Vol 23 (8) ◽  
pp. 518-519
Author(s):  
Francisco Jose Alguacil ◽  
Jaime Simpson ◽  
Patricio Navarro
Keyword(s):  
Solvent Extraction ◽  
Thermodynamic Model ◽  
Distribution Coefficients ◽  
Extraction System ◽  
Extraction Equilibrium ◽  
Solvent Extraction System ◽  
Measured Distribution

A previously determined thermodynamic model for extraction equilibrium is used as a basis to predict experimentally measured distribution coefficients for the CuSO4–H2SO4–LIX 984–Escaid 103 solvent extraction system at 25 °C and aqueous copper concentrations in the range 0.01–2.0 gL−1, the copper loading isotherm is also obtained.

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