Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...
Reexamination Certificate
2007-05-01
2007-05-01
Parsa, J. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Fatty compounds having an acid moiety which contains the...
C560S234000
Reexamination Certificate
active
10544822
ABSTRACT:
It is an object of this invention to provide a method for producing an ester by a transesterification reaction in which the reaction can be stably performed in a short time at a pressure approximately equal to normal pressure. The ester is produced by a transesterification reaction in which a starting material ester and an alcohol are brought into contact with a solid acid catalyst that displays the characteristics of a very strong acid in terms of the absolute value of argon adsorption heat ranging from 15 to 22 kJ/mol. In particular, it is preferable that the starting material ester in a liquid phase and alcohol in a vapor phase be brought into contact with the solid acid catalyst, and that the starting material ester be oil or fat, and the alcohol be methanol or ethanol.
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Measurement of Heat of Argon Adsorption for the Evaluation of Relative Acid Strength of Some Sulfated Metal Oxides and H-type Zeolites, Matsuhashi, et al., Journal of Physical Chemistry B, vol. 105, No. 40, pp. 9669-9671 (2001).
Flynn ,Thiel, Boutell & Tanis, P.C.
Japan Energy Corporation
Parsa J.
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