Continuous method for producing muconic acid from aldaric acid
AssigneeTeknologian tutkimuskeskus VTT Oy
InventorsDavid Thomas, Juha Linnekoski, Martta Asikainen, Olli Jauhiainen, Miika Martiskainen
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Abstract
According to an example aspect of the present invention, there is provided a continuous method of producing muconic acid from aldaric acid in the presence of a solid heterogeneous catalyst and an alcohol solvent with short reaction time. Another aspect of the present invention is the use of a non-expensive solid heterogenous catalyst, which is automatically separated from the product.
Claims11
A continuous method of producing muconic acid from an aldaric acid comprising passing the aldaric acid in a solvent through a pressurized reactor at temperature of 120 to 140° C. with a solid heterogenous rhenium-based catalyst at weight hourly space velocity of 0.1-10 h−1 during a pre-determined reaction time.
Use of muconic acid and esters as an intermediate in the production of industrial chemicals and pharmaceutical building blocks wherein the muconic acid and esters are produced by a continuous method of producing muconic acid from an aldaric acid comprising passing the aldaric acid in a solvent through a pressurized reactor at temperature of 120 to 140° C. with a solid heterogenous rhenium-based catalyst at weight hourly space velocity of 0.1-10 h−1 during a pre-determined reaction time.
Use of muconic acid and esters as an intermediate in the production of chemicals selected form the group consisting of:
- adipic acid, terephthalic acid, hexamethylenediamine, caprolactone, caprolactam, polyamides and nylons, wherein the muconic acid and esters are produced by a continuous method of producing muconic acid from an aldaric acid comprising passing the aldaric acid in a solvent through a pressurized reactor at temperature of 120 to 140° C. with a solid heterogenous rhenium-based catalyst at weight hourly space velocity of 0.1-10 h−1 during a pre-determined reaction time.
Dependencies are inferred from the claim text.