Method for producing an aromatic carbonate

Details Method for producing an aromatic carbonate Method for producing an aromatic carbonate

C - Chemistry, Metallurgy

07

C

C07C 68/04 (2006.01) C07C 68/06 (2006.01) C07C 69/96 (2006.01)

Patent

CA 2527698

A method for producing an aromatic carbonate, comprising: (1) performing a reaction between an organometal compound and carbon dioxide to obtain a reaction mixture containing a dialkyl carbonate formed by the reaction, (2) separating the dialkyl carbonate from the reaction mixture to obtain a residual liquid, (3) reacting the residual liquid with an alcohol to form at least one organometal compound and form water and removing the water from the organometal compound, and (4) reacting the dialkyl carbonate separated in step (2) with an aromatic hydroxy compound to obtain an aromatic carbonate.

Procédé de production d'un carbonate aromatique qui possède les étapes suivantes (1 à 4) : (1) un composé métallique organique et du dioxyde de carbone sont mis en réaction, ce qui permet d'obtenir un mélange de réaction contenant un carbonate de dialkyle formé par la réaction, (2) le carbonate de dialkyle est séparé du mélange de réaction, ce qui permet d'obtenir un liquide résiduel, (3) le liquide résiduel est mis en réaction avec un alcool, ce qui permet d'obtenir au moins un type de composé métallique organique et de l'eau, l'eau étant éliminée de ce composé métallique organique, et (4) le carbonate de dialkyle séparé à l'étape (2) est mis en réaction avec un composé hydroxy aromatique, ce qui permet d'obtenir un carbonate aromatique.

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