Mechanism and kinetics of the CoCl2 -catalyzed esterification reaction of castor oil with oleic acid

1995 ◽  
Vol 72 (8) ◽  
pp. 891-894 ◽  
Author(s):  
A. Erdem-Şenatalar ◽  
E. Erencek ◽  
A. T. Erciyes
Keyword(s):  
Oleic Acid ◽  
Castor Oil ◽  
Esterification Reaction ◽  
Mechanism And Kinetics ◽  
Kinetics Of

The kinetics of the esterification reaction between castor oil and oleic acid

1991 ◽  
Vol 68 (9) ◽  
pp. 639-641 ◽  
Author(s):  
A. T. Erciyes ◽  
L. Dandik ◽  
O. S. Kabasakal
Keyword(s):  
Oleic Acid ◽  
Castor Oil ◽  
Esterification Reaction ◽  
Kinetics Of

Kinetics of Esterification Reaction between Glycerol and Oleic Acid in the Presence of Pyridine

Lipid / Fett ◽  
1995 ◽  
Vol 97 (9) ◽  
pp. 347-351 ◽  
Author(s):  
M. M. Emtir ◽  
F. S. Guner ◽  
O. S. Kabasakal ◽  
A. T. Erciyes ◽  
E. Ekinci
Keyword(s):  
Oleic Acid ◽  
Esterification Reaction ◽  
Kinetics Of

Effects of Lewis acid catalysts on the esterification kinetics of castor oil with oleic acid

1994 ◽  
Vol 71 (9) ◽  
pp. 1035-1037 ◽  
Author(s):  
A. Erdem-Şenatalar ◽  
E. Erencek ◽  
M. Tüter ◽  
A. T. Erciyes
Keyword(s):  
Oleic Acid ◽  
Lewis Acid ◽  
Castor Oil ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
Kinetics Of

Oil extraction from the sunflower seeds, mechanism and kinetics of the process

2020 ◽  
Vol 3 (1) ◽  
pp. 155-160
Author(s):  
Ye. M. Semenyshyn ◽  
◽  
V. M. Atamanyuk ◽  
O. Ya. Dobrovetska ◽  
T. I. Rymar ◽  
...  
Keyword(s):  
Oil Extraction ◽  
Sunflower Seeds ◽  
Mechanism And Kinetics ◽  
Kinetics Of

PEMBUATAN SURFAKTAN DARI ASAM OLEAT

2019 ◽  
Vol 1 (3) ◽  
pp. 68
Author(s):  
Puguh Setyopratomo ◽  
Edy Purwanto ◽  
H. Yefrico ◽  
H. Yefrico
Keyword(s):  
Oleic Acid ◽  
Optimum Condition ◽  
Reaction Temperature ◽  
Catalyst Concentration ◽  
Acid Number ◽  
Esterification Reaction ◽  
Number Density ◽  
Sample Analysis ◽  
Reaction Conversion ◽  
Glycerol Mono

The synthesis of glycerol mono oleic from oleic acid and glycerol is classified as an esterification reaction. This research is aimed to study the influent of reaction temperature and catalyst concentration on reaction conversion. During the experiment the temperature of reaction mixture was varied as 110 oC, 130 oC, and 150 oC, while the catalyst concentration of 1%, 3 %, and 5% was used. The batch experiment was conducted in a glass reactor equipped with termometer, agitator, and reflux condensor. The oleic acid – glycerol mol ratio of 1 : 2 was used as a mixture feed. To maintain the reaction temperature at certain level, the oil bath was used. After the temperature of reaction mixture was reached the expected value, then H2SO4 catalyst was added to the reactor.  To measure the extent of the reaction, every 30 minutes the sample was drawn out from the reactor vessel. The sample analysis include acid number, density, and viscosity measurement. From this research the optimum condition which is the temperature of reaction of 150 oC and 1% catalyst concentration was obtained. At this optimum condition the convertion reach 86% and the analysis of other physical properties of the product show the acid number of 24.12, the density of 0.922 g/cc, and the viscosity of 118.4 cp.

Studies on the Behavior Some Paints in Electro-insulating Fluid Based on Vegetable Esters

2018 ◽  
Vol 69 (5) ◽  
pp. 1139-1144
Author(s):  
Iosif Lingvay ◽  
Adriana Mariana Bors ◽  
Livia Carmen Ungureanu ◽  
Valerica Stanoi ◽  
Traian Rus
Keyword(s):  
Structural Changes ◽  
Oxidation Processes ◽  
High Oleic ◽  
Painting Materials ◽  
Insulating Paper ◽  
Different Types ◽  
Mechanism And Kinetics ◽  
Kinetics Of ◽  
Natural Ester

For the purpose of using three different types of painting materials for the inner protection of the transformer vats, their behavior was studied under actual conditions of operation in the transformer (thermal stress in electro-insulating fluid based on the natural ester in contact with copper for electro-technical use and electro-insulating paper). By comparing determination of the content in furans products (HPLC technique) and gases formed (by gas-chromatography) in the electro-insulating fluid (natural ester with high oleic content) thermally aged at 130 �C to 1000 hours in closed glass vessels, it have been found that the presence the investigated painting materials lead to a change in the mechanism and kinetics of the thermo-oxidation processes. These changes are supported by oxygen dissolved in oil, what leads to decrease both to gases formation CO2, CO, H2, CH4, C2H4 and C2H6) and furans products (5-HMF, 2-FOL, 2 -FAL and 2-ACF). The painting materials investigated during the heat treatment applied did not suffer any remarkable structural changes affecting their functionality in the electro-insulating fluid based on vegetable esters.

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