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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Chemical Engineering Research
Journal Basic Information
Journal DOI :
The Korean Institute of Chemical Engineers
Editor in Chief :
Volume & Issues
Volume 12, Issue 6 - Dec 1974
Volume 12, Issue 5 - Oct 1974
Volume 12, Issue 4 - Aug 1974
Volume 12, Issue 3 - Jun 1974
Volume 12, Issue 2 - Apr 1974
Volume 12, Issue 1 - Feb 1974
Selecting the target year
Rhim, Jin-Nam ;
Korean Chemical Engineering Research, volume 12, issue 4, 1974, Pages 229~229
This review introduces the historical background of vapor-liquid equilibrium equations that have been presented on the basis of the solution theory. Particularly, local composition equations and the total pressure method are briefly discussed. The topics of this review are divided into three parts: 1) The method for determination vapor-liquid equilibrium data 2) Correlations between the solution theory and activity coefficients 3) Total pressure method.
Use of Fusel Oil in Purifying the Wet Process Phosphoric Acid
Shin, Byoung-Sik ; Shin, Sei-Kun ;
Korean Chemical Engineering Research, volume 12, issue 4, 1974, Pages 237~237
The mutal solubility and tie-line data were investigated at
under atomspheric pressure for ternary system of phosphoric acid (solute), water (dilute) and fusel oil (solvent) consisting of 0.35 wt% ethyl alcohol, 0.45 wt% n-butyl, 0.31 wt% n-propyl alcohol, 0.33 wt% n-hexyl alcohol, 5.52 wt% iso-butyl alcohol, 93.04 wt% iso-amyl alcohol and other in trace. It was found the plait point occurred at the composition of 20.5 wt% water 58.9 wt% phosphoric acid and 20.6 wt% fusel oil. The fusel oil was a more effective solvent for extracting phosphoric acid than n-butyl alcohol or butyl acetate.
The Liquid-Liquid Equilibria for i-Propyl Alcohol-Water-Salt Systems
Do, Kap-Soo ; Park, Won-Kyu ;
Korean Chemical Engineering Research, volume 12, issue 4, 1974, Pages 243~243
The salt effect in liquid-liquid equilibrium for i-propyl alcohol-water azeotropic mixture was studied at
under atmospheric pressure. i-propyl alcohol-water homogeneous mixture was separated into two layer by addition of salt such as
, KCl, etc., and especially for
the composition of upper layer was moved to beyond the azeotropic composition. Meanwhile, mutual solubility and tie line data were determined experimentally for the ternary systems of i-propyl alcohol-water-salt (
, KCl, NaCl respectively) at
under atmospheric pressure. The tie line data were successfully correlated by each of five different methods-Hirata, Campbell, Hand, Treybal and Iguchi as in the previous work, and plait points of these ternary systems were located by the methods of Hand-Treybal and Iguchi. From the results of this work and previous one, it is concluded that the development of a new effective extraction-distillation continuous process for separating azeotropic mixtures is possible.
Kinetics of Bis(2-ethylhexyl) phthalate Synthesis(I) Non-Catalytic Reaction
Kim, Jin-Il ;
Korean Chemical Engineering Research, volume 12, issue 4, 1974, Pages 251~251
Chemical kinetic study of the esterification of mono(2-ethylhexyl) phthalate with 2-ethyl hexanol was carried out to find the reaction mechanism when catalyst, such as acid or base, was not used. The rate equation determined experimentally was second order for mono(2-ethylhexyl) phthalate and first order for 2-ethyl hexanol. The plot of temperature dependence of reaction rate constant of this equation gave an activation energy value of 18 kcal/mole. Some discussion of the reaction mechanism was also given.
Kinetics of Bis(2-ethylhexyl) phthalate Synthesis(II) Sulfuric Acid-Catalytic Reaction
Kim, Jin-Il ;
Korean Chemical Engineering Research, volume 12, issue 4, 1974, Pages 257~257
Chemical kinetic study for the esterification of mono(2-ethylhexyl) phthalate with 2-ethyl hexanol was carried out to find the reaction mechanism when sulfuric acid was used as the catalyst. Experimental results gave a rate equation which was first order for both mono(2-ethylhexyl) phthalate and 2-ethyl hexanol. Activation energy value of 13 kcal per mole was obtained by the plot of temperature dependence of the rate equation. The rate constant was expressed as a function of catalyst concentration and reaction temperature by the following equation.
Some discussion of the catalytic reaction mechanism was also given.
'비료성분중 황의 중요성' (우리나라 벼 생산에 미치는 황분의 공급효과)
Sin, Byeong-Sik ;
Korean Chemical Engineering Research, volume 12, issue 4, 1974, Pages 267~267