scholarly journals Study of Zirconium and Hafnium Separation by Solvent Extraction Technique from Nitric and Hydrochloric Solutions with Acid, Basic and Neutral Extractants

2016 ◽  
Vol 04 (03) ◽  
pp. 138-150 ◽  
Author(s):  
Janúbia Cristina B. S. Amaral ◽  
Carlos Antônio de Morais
Keyword(s):  
Solvent Extraction ◽  
Extraction Technique ◽  
Solvent Extraction Technique

Extraction of β-Sitosterol from Jatropha Seed Oil

2011 ◽  
Vol 233-235 ◽  
pp. 1210-1213 ◽  
Author(s):  
Shu Yu Liu ◽  
Hao Lu ◽  
Li Jie Sun ◽  
Xin Guo
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Zinc Chloride ◽  
Seed Oil ◽  
Extraction Technique ◽  
Power Ratio ◽  
Optimum Conditions ◽  
Jatropha Seed ◽  
Solvent Extraction Technique

Solvent extraction technique was applied for the extraction of β-Sitosterol from jatropha seed oil．The optimum conditions for the lab scale extraction were obtained at 30ml solvent, 0.05g magnesium power, ratio of hydrochloric acid to zinc chloride of 1/1.75 (ml/g) and tetrahydrofuran as a solvent. Under the optical conditions, the yield of β-sitosterol was up to 3.27mg/g.

Determination of Co(II) and Ni(II)-humate stability constants at high ionic strength NaCl solutions

2000 ◽  
Vol 88 (9-11) ◽  
Author(s):  
D.N. Kurk ◽  
Gregory R. Choppin
Keyword(s):  
Humic Acid ◽  
Ionic Strength ◽  
Solvent Extraction ◽  
Potentiometric Titration ◽  
Stability Constants ◽  
Dissociation Constants ◽  
High Ionic Strength ◽  
Extraction Technique ◽  
Solvent Extraction Technique

Complexation of Ni(II) and Co(II) by unfractionated humic acid (HA) was measured in 0.3 to 5.0 m NaCl solutions at pH 6 and 20 °C, using a solvent extraction technique. The dissociation constants and capacities of the humic acid were investigated in 0.1 to 5.0 m NaCl solutions at 25 °C using potentiometric titration methods.

Determining the Relative Age of Ballpoint Inks Using a Single-Solvent Extraction Technique

1987 ◽  
Vol 32 (6) ◽  
pp. 11211J ◽  
Author(s):  
Richard L. Brunelle ◽  
C. H. Breedlove ◽  
Charles R. Midkiff
Keyword(s):  
Solvent Extraction ◽  
Extraction Technique ◽  
Relative Age ◽  
Solvent Extraction Technique
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