Results 21 to 30 of about 404 (171)

Experimental determination and prediction of liquid-solid equilibria for binary (methyl palimitate + naphthalene) mixture

MATEC Web of Conferences, 2013
Solid-liquid equilibria for binary mixtures of {Methyl palmitate (1) + Naphthalene (2)} were measured using differential scanning calorimeter (DSC). Simple eutectic behaviours for this system are observed.
Benziane M., Khimeche K., Dahmani A., Trache D.   +3 more
doaj   +1 more source

Aqueous biphasic systems containing sodium L-tartrate dihydrate and PEG, experimental and application of extended thermodynamic models

Chemical Thermodynamics and Thermal Analysis, 2023
In the current study, liquid-liquid equilibrium data of aqueous two-phase systems (ATPS) containing polyethylene glycol at the different molecular weights (1000, 2000, 6000, and 8000) - sodium L-tartrate dihydrate - water at 298.15 K were obtained ...
Hamid Bakhshi, Poorya Mobalegholeslam, Seyed Ali Mosavi   +2 more
doaj   +1 more source

Improvement of Phenolic Compound and Anthocyanin Extraction Efficiency From Clitoria ternatea by Autogenous Pressurization Method in a Sealed‐Vessel and Determination of Anthocyanin Compounds by LC‐HRMS [PDF]

Food Sci Nutr
Closed‐vessel extraction under autogenous pressure (CVE‐AP) enhanced anthocyanin and phenolic compound recovery from Clitoria ternatea by improving solvent penetration and mass transfer while preserving flavonoid profiles confirmed by LC‐HRMS. ABSTRACT Clitoria ternatea L.
Nguyen K, Tran T, Dong T.
europepmc   +2 more sources

Correlation and Prediction of Thermodynamic Properties for Quaternary Ammonium Salt Types by Applying the Modified Nonelectrolyte UNIQUAC-NRF Model [PDF]

Iranian Journal of Chemistry & Chemical Engineering
The osmotic and activity coefficients of quaternary ammonium salt types are correlated and predicted by applying a modified nonelectrolyte UNIQUAC-NRF equation.
Ali Hosseini Eghbal, Seyed Hossein Mazloumi   +1 more
doaj   +1 more source

A Modified van der Waals Mixture Theory for Associating Fluids: Application to Ternary Aqueous Mixtures [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2012
In this study a simple and general chemical association theory is introduced. The concept of infinite equilibrium model is re-examined and true mole fractions of associated species are calculated. The theory is applied to derive the distribution function
Seyed Foad Aghamiri, Hamid Modarres, Zahra Nickmand, Hammed Taheri   +3 more
doaj  

Liquid-liquid Equilibria for Quaternary System of Eugenol (1) + β-Caryophyllene (2) + 1-Propanol (3) + Water (4) at Temperatures 303.15, 313.15, and 323.15 K

MATEC Web of Conferences, 2018
In this work, the experimental liquid–liquid equilibrium (LLE) data were measured for quaternary mixtures of eugenol(1) + β–caryophyllene(2) + 1-propanol(3) + water(4) at temperatures 303.15, 313.15, and 323.15 K and at atmospheric pressure.
Hidayatulloh Irwan, Nugroho Nurcahyo, Wibawa Gede, Kuswandi Kuswandi   +3 more
doaj   +1 more source

Isobaric Vapor - Liquid Equilibria of Gasoline Additives Systems At 101.3 kPa [PDF]

Engineering and Technology Journal, 2010
In this study, isobaric vapor-liquid equilibrium of gasoline additives for threeternary systems: “MTBE + Ethanol + 2-Methyl-2-propanol”, “Ethanol + 2-Methyl-2-propanol + Octane”, and “MTBE + Ethanol + Octane” at 101.3kPa arestudied.
Khalid Farhod Chasib Al-Jiboury, Rawa Khamas   +1 more
doaj   +1 more source

Avaliação de Diferentes Abordagens na Solução do Problema de Equilíbrio Sólido-Líquido em Óleos Parafínicos

Trends in Computational and Applied Mathematics, 2020
Neste trabalho investigou-se a eficiência computacional na solução do problema de equilíbrio termodinâmico sólido-líquido (ESL) em óeos parafínicos. Foram avaliados diversos modelos termodinâmicos para a fase líquida: a equação de estado de Peng-Robinson
Leandro Blass, Anderson L. J. Bihain, Everson J. G. Silva, João F. V. Vasconcellos, Gustavo M. Platt   +4 more
doaj   +1 more source

Estimation of UNIQUAC-NRF Model Parameters for NH3-CO2-H2O System [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2005
Vapor-liquid equilibrium in NH3-CO2-H2O system at high pressures has been studied. The UNIQUAC-NRF model for this system was extended by using the Goppert 4 maurer reported datas.
Hassan Pahlevanzadeh, Amir Mohseni Ahooei   +1 more
doaj  

پیش بینی ترمودینامیکی تشکیل رسوبات سولفات باریم و استرانسیم در طرح های سیلابزنی آب درمخازن نفتی [PDF]

Muhandisī-i manābi̒-i ma̒danī, 2019
امروزه عملیات بازیابی نفت در مخازن نفتی از طریق تزریق آب رویکرد اقتصادی مطلوبی دارد اما بازده این روش در اثر تشکیل رسوبات معدنی در حالت فوق اشباع کاهش می‌یابد. از این‌رو توجه و مطالعات بیشتر برای جلوگیری از مشکل تشکیل رسوب معدنی ضروری به نظر می‌رسد.
سیدحسین هاشمی, محمود دین محمد, سیدعلی موسوی دهقانی   +2 more
doaj   +1 more source