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International Journal of Chemical Engineering
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International Journal of Chemical Engineering
/
2012
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Article
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Tab 1
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Research Article
Diesters Biolubricant Base Oil: Synthesis, Optimization, Characterization, and Physicochemical Characteristics
Table 1
Independent variables and their levels for D-optimal design of the esterification reaction.
Independent variables
Variable Levels
−1
0
+1
(1) OL/HYOOA (mol/mol)
2
3
4
(2) SA/HYOOA (mol/mol)
0.7
1
1.3
(3) Temperature (
º
C)
90
100
110
(4) Time (h)
5
6
7