Process development for the separation of niobium and tantalum from fluoride medium using trioctyl amine and application of Taguchi's method to optimize solvent extraction parameters

2021 ◽  
Vol 199 ◽  
pp. 105522
Author(s):  
Snehasis Dutta ◽  
S. Mukhopadhyay ◽  
Samyuktha Gaddam ◽  
K.T. Shenoy ◽  
K.V. Mirji
Keyword(s):  
Solvent Extraction ◽  
Process Development ◽  
Taguchi’S Method ◽  
Extraction Parameters ◽  
Fluoride Medium

Silver-Based Solvent Extraction of EPA/DHA from Fish Oil: Chemistry and Process Development

2020 ◽  
pp. 161-204
Author(s):  
Kirubanandan Shanmugam ◽  
Deepak Kumar Verma ◽  
Mamta Thakur ◽  
Ramandeep Kaur ◽  
Kawaljit Singh Sandhu ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Fish Oil ◽  
Process Development

Study on Properties of Extraction Palladium(II) with the New Synthesized Material

2013 ◽  
Vol 774-776 ◽  
pp. 1342-1345 ◽  
Author(s):  
Shao Ping Feng ◽  
Zhao Long Huang ◽  
Wei Liu ◽  
Zi Jing Li ◽  
Yan Jiang ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Hydrochloric Acid ◽  
Acid Solution ◽  
Contact Time ◽  
Acid Solutions ◽  
Quantitative Extraction ◽  
Hydrochloric Acid Solutions ◽  
Thiourea Concentration ◽  
Extraction Parameters ◽  
Hcl Concentration

In this study, the solvent extraction of Pd(II) from hydrochloric acid solutions was investigated using the new synthesized material, 2-ethylhexyl benzothiazolyl sulfide (EHBTS) which was dissolved in xylene. Pd(II) was strongly extracted by 7% EHBTS in a lower concentration hydrochloric acid solution. Extraction parameters of Pd(II), including EHBTS concentration in different diluents, contact time of aqueous and organic phases, organic/aqueous (O/A) phase ratio and HCl concentration of aqueous phase, were studied. Quantitative extraction of Pd(II) occurred at 0.1 mol.L-1 of HCl concentration, 7% of EHBTS concentration, 1.0 of O/A, 40 min of contact time. In addition，the percentage stripping of Pd(II) could be more than 98% when thiourea concentration was 0.8 mol.L-1. EHBTS can be used more than 8 as extractant to extract of Pd(II) from hydrochloric acid solutions.

scholarly journals Chemometrics of Solvent Extraction of Mn(II) and Fe(III) Bis(salicylidene) Ethylenediamine Complexes in Acid Medium

2020 ◽  
Vol 1 (2) ◽  
pp. 71-77
Author(s):  
Nworie Felix Sunday
Keyword(s):  
Solvent Extraction ◽  
Linear Correlation ◽  
Full Text ◽  
Correlation Coefficients ◽  
Scale Production ◽  
Significance Level ◽  
Whole Process ◽  
Extraction Parameters ◽  
The Relationship ◽  
Industrial Scale Production

In this study, the preparation and solvent extraction parameters of Mn(II) and Fe(III) -bis(salicylidene) ethylenediamine (H2SAL) was modeled with classical statistical analyses processed using SPSS19.0 software. The linear correlation coefficients for Mn(II) was between 59.5 to 1.0 % whereas for Fe(III), it was between 48-1.0%. The F-values, a measure of the significance of the models indicated that all the factors are needed though at differing degrees for the preparation and extraction of the metal complexes. The significance level for each model was lower than 5% and as such the relationship can be generalized to the whole process. The experiments indicated that the solvent extraction combined with modeling method was accurate, efficient, and reproducible and can be applied in industrial scale production. Doi: 10.28991/HEF-2020-01-02-03 Full Text: PDF

Effect of Supercritical Carbon Dioxide Condition on Oil Yield and Solubility of Pithecellobium Jiringan (Jack) Prain Seeds

2013 ◽  
Vol 60 (1) ◽  
Author(s):  
Mohd Azizi Che Yunus ◽  
Nur Husnina Arsad ◽  
Salman Zhari ◽  
Zuhaili Idham ◽  
Siti Hamidah Setapar ◽  
...  
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Solvent Extraction ◽  
Supercritical Carbon Dioxide ◽  
Soxhlet Extraction ◽  
Extraction Process ◽  
Antioxidant Compounds ◽  
Extraction Parameters ◽  
Plant Sources ◽  
Supercritical Carbon

Pithecellobium Jiringan (Jack) Prain (P.Jiringan) merupakan salah satu daripada sumber tumbuhtumbuhan yang mengandungi komponen antioksidan. Tujuan kajian ini dijalankan adalah untuk mengkaji kesan-kesan parameter kaedah penyarian bendalir lampau genting dengan menggunkan karbon dioksida sebagai pelarut (SC-CO2) ke atas hasil minyak dan untuk mengukur kebolehlarutan minyak P.Jiringan didalam (SC-CO2) dan mengkorelasi data kebolehlarutan minyak P.Jiringan dengan model Chrastil dan del Valle & Aguilera. Kajian ini telah dijalankan pada suhu antara 40oC sehingga 70oC dan pada tekanan antara 27.58 MPa sehingga 44.82 MPa. Tempoh pengekstrakan adalah 60 minit. Penemuan hasil kajian ini menunjukkan bahawa hasil minyak meningkat dengan peningkatan tekanan dan peningkatan suhu. Pada keadaan suhu malar, kebolehlarutan minyak meningkat dengan peningkatan kepadatan CO2. Analisis keputusan menunjukkan bahawa data keterlarutan minyak P.Jiringan telah berjaya dipadankan dengan model Chrastil. Di samping itu, SC-CO2 memberikan hasil minyak tertinggi berbanding dengan ASE dan proses pengekstrakan Soxhlet. Kata kunci: Kebolehlarutan; Model Chrastil; penyarian bendalir lampau genting; Pithecellobium Jiringan (Jack) Prain Pithecellobium Jiringan (Jack) Prain (P.Jiringan) is one of the medicinal plant sources that consist of antioxidant compounds. The aim of this study was to investigate the effects of supercritical carbon dioxide (SC-CO2) extraction parameters on oil yields and to measure the solubility of P.Jiringan oil in SC-CO2 and correlated the data with Chrastil and del Valle & Aguilera models. The experimental were conducted at temperatures ranging from 40oC to 70oC and pressure from 27.58 MPa to 44.82 MPa. The extraction duration was 60 minutes. The result shows that the oil yields increase as the pressure and temperature increase. The solubility of oil increased as the density of CO2 increased at constant temperature. An analysis of the results show that the solubility experimental data correlated with the Chrastil’s model was successfully matched. In addition, SC-CO2 give the highest oil yields compared to accelerated solvent extraction (ASE) and soxhlet extraction process. Keywords: Chrastil’s model; Pithecellobium Jiringan (Jack) Prain; solubility; supercritical fluid extraction

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