The adsorption of long-chain n-paraffin from isooctane solution on crystalline urea

Hassan, Neguib M.

doi:10.1016/0956-9618(94)80007-3

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…Kadarnya dapat ditingkatkan menjadi 14,46% dan 21,19% dengan adanya pengadukan selama 15 dan 30 menit. Kecenderungan ini sesuai dengan penelitian Hassan (1994) dan Setyawardhani dkk. (2015) yang menyatakan bahwa untuk senyawa karbon rantai sedang, makin pendek rantai karbon makin mudah terinklusi ke dalam kristal urea.…”

Section: Hasil Dan Pembahasanunclassified

Peranan Pengadukan Terhadap Karakteristik Kompleksasi Urea Sebagai Sarana Pemisahan Asam Lemak Omega Dari Minyak Nabati

Setyawardhani

Sulistyo

Sediawan

et al. 2016

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Section: Hasil Dan Pembahasanunclassified

Peranan Pengadukan Terhadap Karakteristik Kompleksasi Urea Sebagai Sarana Pemisahan Asam Lemak Omega Dari Minyak Nabati

Setyawardhani

Sulistyo

Sediawan

et al. 2016

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“…It is based on the capability of SFAs to form complexes with urea in an ethanolic solution, which generates a solid–liquid system. Some previous researches focus on determining optimal conditions to produce the highest concentration and yields of the PUFAs. ,, Urea complexation was also viewed as adsorption phenomena. − It is necessary to provide phase transition data of the SFA–urea–ethanol complexation for process design and optimization in the separation industries. Urea complexation usually applies to fatty acid mixtures, which are obtained from vegetable oil hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

Solid–Liquid Equilibrium for Binary and Ternary Phases of Saturated Fatty Acid–Urea–Alcohol in Urea Complexation

et al. 2019

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Urea complexation is a fractionating process to separate poly unsaturated fatty acids from vegetable and animal oil, based on the capability of saturated fatty acids (SFAs) to form complexes with urea in the ethanolic solution, which generates a solid−liquid system. This research determined models which are suitable for the fatty acid, urea, and ethanol/methanol solid−liquid equilibrium. Furthermore, activity coefficients and interaction parameters between the substances involved were evaluated. Pure SFAs were used in this experiment instead of SFAs produced from vegetable oil saponification. Solid-liquid phase diagrams for binary and ternary saturated fatty acid−urea−ethanol were developed. These binary data were used to determine experimental activity coefficients and interaction parameters using thermodynamic models based on excess Gibbs free energy, such as Wohl, Wilson, Margules, and nonrandom two liquid models. The resulting interaction parameters gave a good fitting between experimental data and adjustable or predictive models.

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Optimisation of solid-state urea clathrate formation as a chemical separation method coupled to compound-specific stable carbon isotope analysis

Novák

Kirchkeszner

Palya

et al. 2015

International Journal of Environmental Analytical Chemistry

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The adsorption of long-chain n-paraffin from isooctane solution on crystalline urea

Cited by 5 publications

References 3 publications

Peranan Pengadukan Terhadap Karakteristik Kompleksasi Urea Sebagai Sarana Pemisahan Asam Lemak Omega Dari Minyak Nabati

Peranan Pengadukan Terhadap Karakteristik Kompleksasi Urea Sebagai Sarana Pemisahan Asam Lemak Omega Dari Minyak Nabati

Solid–Liquid Equilibrium for Binary and Ternary Phases of Saturated Fatty Acid–Urea–Alcohol in Urea Complexation

Optimisation of solid-state urea clathrate formation as a chemical separation method coupled to compound-specific stable carbon isotope analysis

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