Solvent extraction
Determining an Efficient Solvent Extraction Parameters for Re-Refining of Waste Lubricating Oils
... by solvent extraction is one of the efficient and cheapest ...i.e. solvent type, solvent oil ratio and extraction ...of extraction increased the oil losses percent also ...the ...
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COBALT SALTS PRODUCTION BY USING SOLVENT EXTRACTION
... the solvent extraction from multi-component solutions of the target component (cobalt in our case) its extraction may be affected by different metal ...the extraction of other ...cobalt ...
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SEPARATION OF COPPER FROM A LEACHING SOLUTION OF PRINTED CIRCUIT BOARDS BY USING SOLVENT EXTRACTION WITH D2EHPA
... + solvent extraction) to recover copper from printed circuit boards ...liquor, solvent extraction tests were carried out using ...investigated. Solvent extraction experiments ...
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Planejamento de experimentos para a separação samário-neodímio por extração por solventes / Experiment planning for samario-neodyme separation by solvent extraction
... the solvent extraction with the use of an organic solvent of the cationic type (D2EHPA) and a solution obtained by the dissolution of rare earth carbonates in a hydrochloric medium (HCl), using ...
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Procedure for solvent extraction (SX)
... Zn(II) extraction. Mn(II) co-extraction increased as free acidity increased, particularly from hydrochloric leachates and when Cyanex 923 was the ...
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Thermodynamic modeling for solvent extraction of metals divalent in sulphate media using D2EHPA.
... Este trabalho teve como objetivo desenvolver uma metodologia para o modelamento da extração de metais divalentes em meio sulfúrico, utilizando como extratante o ácido Di-2-etil-hexil f[r] ...
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FRACTIONATION OF HYDRO- ETHANOLIC EXTRACTS FROM GRAPE POMACE THROUGH MEMBRANE PROCESSING: THE EFFECT OF MEMBRANE AND EXTRACTING MEDIA ON PROCESS PERFORMANCE
... and extraction from the ...biocompatible solvent extraction of ethanolic-water composition is realized and the kinetics of extraction time is ...Organic Solvent Nanofiltration membrane ...
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Solvent effects on extraction of chlorogenic acids, caffeine and trigonelline in Coffea arabica.
... ON EXTRACTION OF CHLOROGENIC ACIDS, CAFFEINE AND TRIGONELLINE IN Coffea ...the extraction of chlorogenic acids, caffeine and trigonelline in crude extracts of four coffee cultivars, traditional red bourbon, ...
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Exploring the Anticancer Activity of Grape Seed Extract on Skin Cancer Cell Lines A431
... In this study, grape seeds were extracted using ethyl acetate and petroleum ether by solvent-solvent extraction method. The phytochemical tests were performed to identify different phytochemical ...
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J. Braz. Chem. Soc. vol.28 número6
... antioxidant capacity values for concentrations of 5.0 and 10.0 g of oregano incorporated in canola oil (Table 1) are similar and signiicantly higher than values for total antioxidant capacity of 2.5 g of oregano ...
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A Comparative Study of the Biological Activity of Skin and Granular Gland Secretions of Leptodactylus latrans and Hypsiboas pulchellus from Argentina
... the extraction of bioactive components were compared in their effectiveness: solvent extraction (SE) and transcutaneous amphibian stimulation ...
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J. Braz. Chem. Soc. vol.24 número5
... pressurized solvent extraction (PSE) with solid phase extraction (SPE) cleanup and gas chromatography system with electron capture detection (GC-ECD) has been developed for determination of ...
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Alternative solvents in separation processes
... Liquid-liquid extraction can be carried out at ambient temperature and pressure with minimal losses of natural components, reducing the energy ...as extraction solvents, achieving low acidity oil as a final ...
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Degradation of mixture of phenolic compounds by activated sludge processes using mixed consortia
... solvent extraction, activated carbon adsorption, Advanced Oxidation Processes (AOPs) [3] and biological processes [4-5]. However, the physico-chemical removal or treatment technologies [r] ...
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Evaluation of Diazatetraoxa Cryptand as Extractant for Transition Metals and Pb2+
... Previous researches on the macrocyclic ligands have provided insight into the interaction of metal cations with crown and cryptand ethers containing mixed donor atoms. Solvent extraction has been used for ...
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J. Braz. Chem. Soc. vol.23 número7
... are three phases of liquid in the extraction procedure. The disperser is miscible with both aqueous samples and extraction solvent. The disperser is the medium for mass transfer between the two ...
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Cytotoxicity and antioxidant activity of goldenberry extracts obtained with high intensity ultrasound
... conventional solvent extraction by using the determination of total phenolic compounds and antioxidant capacity method ORAC (Oxygen Radical Absorbance ...
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Rev. bras. farmacogn. vol.22 número4
... different extraction procedures (hydrodistillation, solvent extraction and headspace solid-phase microextraction) provide complementary information of the organic compound proi le, which is very ...
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J. Braz. Chem. Soc. vol.17 número3
... of extraction of natural products has been ...less solvent. Extraction of alkaloids from natural products such as Hyoscyamus muticus, Datura stramonium and Ruta graveolens consists of the use of a ...
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Quím. Nova vol.33 número6
... The solvent delay was 5 min. The total analysis time was 28 min and the equilibrium time was 3 min. The injection port was maintained at 250 °C and 1 μL sample volumes were injected in splitless mode (50 s). The ...
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