22 research outputs found
Evaluation of tri-n-octylamine oxide as phenol extractant in a solvent impregnated resin
No full textTri-n-ocytlamine oxide (TOAO) is evaluated as alternative to the state-of-the-art phenol extractants tri-n-octylphosphine oxide (TOPO) and Cyanex 923. Liquid¿liquid equilibrium experiments show that TOAO in 1,3-dimethylnaphthalene achieves higher phenol distribution coefficients in an extractant concentration range of 0.1¿1.25 mol L¿1 than respective TOPO/1,3-dimethylnaphthalene or Cyanex 923/1,3-dimethylnaphthalene solutions. In a solvent impregnated resin (SIR) application, the SIRs impregnated with TOAO/1,3-dimethylnaphthalene have a higher phenol capacity than the SIRs impregnated with Cyanex 923/1,3-dimethylnaphthalene. Regeneration of the SIRs with alkaline solution of pH 13 shows that both SIRs maintain a constant phenol capacity during at least seven cycles. Based on these observations TOAO can be considered as a better alternative to Cyanex 92
Evaluation of tri-n-octylamine oxide as phenol extractant in a solvent impregnated resin
No full textTri-n-ocytlamine oxide (TOAO) is evaluated as alternative to the state-of-the-art phenol extractants tri-n-octylphosphine oxide (TOPO) and Cyanex 923. Liquid-liquid equilibrium experiments show that TOAO in 1,3-dimethylnaphthalene achieves higher phenol distribution coefficients in an extractant concentration range of 0.1-1.25 mol L-1 than respective TOPO/1,3-dimethylnaphthalene or Cyanex 923/1,3-dimethylnaphthalene solutions. In a solvent impregnated resin (SIR) application, the SIRs impregnated with TOAO/1,3-dimethylnaphthalene have a higher phenol capacity than the SIRs impregnated with Cyanex 923/1,3-dimethylnaphthalene. Regeneration of the SIRs with alkaline solution of pH 13 shows that both SIRs maintain a constant phenol capacity during at least seven cycles. Based on these observations TOAO can be considered as a better alternative to Cyanex 923
Evaluation of tri-n-octylamine oxide as phenol extractant in a solvent impregnated resin
No full textTri-n-ocytlamine oxide (TOAO) is evaluated as alternative to the state-of-the-art phenol extractants tri-n-octylphosphine oxide (TOPO) and Cyanex 923. Liquid¿liquid equilibrium experiments show that TOAO in 1,3-dimethylnaphthalene achieves higher phenol distribution coefficients in an extractant concentration range of 0.1¿1.25 mol L¿1 than respective TOPO/1,3-dimethylnaphthalene or Cyanex 923/1,3-dimethylnaphthalene solutions. In a solvent impregnated resin (SIR) application, the SIRs impregnated with TOAO/1,3-dimethylnaphthalene have a higher phenol capacity than the SIRs impregnated with Cyanex 923/1,3-dimethylnaphthalene. Regeneration of the SIRs with alkaline solution of pH 13 shows that both SIRs maintain a constant phenol capacity during at least seven cycles. Based on these observations TOAO can be considered as a better alternative to Cyanex 92
Thalidomide- and Lenalidomide-Associated; Thromboembolism; NMS with Delayed Fever Associated with Risperidone Another Interesting Adverse Effect to Risperidone – Priapism; Hyperlactatemia due to Nevirapine; Recurrent Anaphylaxis with Gonadotropin-Releasing Hormone Analogs; Psychotropic Effects of Antiepileptic Drugs; Literacy and Misunderstanding of Prescription Drug Labels
No full textInterruption of Physical Activity Because of Illness in the Lifestyle Interventions and Independence for Elders Pilot Trial
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Modulating Activity of Indomethacin to Vincristine Cytotoxicity in Various Human Carcinoma Cells.
No full textThe capture of the blue crab (Callinectes sapidus, decapoda, crustacea) in the Russian sector of the Black Sea
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