Method for preparing 2, 5-furandicarboxylic acid (FDCA) by using sodium hypochlorite to perform electro-catalysis on 5-hydroxymethylfurfural (5-HMF)
A technology of 5-HMF and sodium hypochlorite, which is applied in the direction of electrolysis process, electrolysis components, electrolysis organic production, etc., can solve problems such as hindering industrial production, expensive precious metal catalysts, and easy deactivation, so as to promote industrial production, simplify the reaction process, improve conversion rate effect
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[0015] Example 1
[0016] Stir the solution of 5-HMF, sodium hypochlorite and sodium hydroxide uniformly at room temperature to obtain a solution with a molar concentration of sodium hydroxide of 0.5M, which is mixed into the anode electrolytic cell; wherein the molar ratio of 5-HMF to sodium hypochlorite is 1:2; Take the sodium hydroxide solution of equal molar concentration and equal volume into the cathode electrolytic cell; choose Cu@CuS as the anode electrode, Ag / AgCl as the reference electrode, platinum wire as the auxiliary electrode, and react for 12h at a potential of 1.0V to obtain FDCA. After testing, the conversion rate of 5-HMF reached 100%, the yield of FDCA reached 95%, and the selectivity reached 99%.
Example Embodiment
[0017] Example 2
[0018] Stir the solution of 5-HMF, sodium hypochlorite and sodium hydroxide uniformly at room temperature to obtain a solution with a molar concentration of sodium hydroxide of 0.5M, which is mixed into the anode electrolytic cell; wherein the molar ratio of 5-HMF to sodium hypochlorite is 1:2; Take the sodium hydroxide solution of equal molar concentration and equal volume into the cathode electrolytic cell; choose Cu@CuS as the anode electrode, Ag / AgCl as the reference electrode, platinum wire as the auxiliary electrode, and react for 8h at a potential of 1.5V to obtain FDCA. After testing, the conversion rate of 5-HMF reached 100%, the yield of FDCA reached 98%, and the selectivity reached 99%.
Example Embodiment
[0019] Example 3
[0020] Stir the solution of 5-HMF, sodium hypochlorite and sodium hydroxide uniformly at room temperature to obtain a solution with a molar concentration of sodium hydroxide of 0.5M, which is mixed into the anode electrolytic cell; wherein the molar ratio of 5-HMF to sodium hypochlorite is 1:2; Take the sodium hydroxide solution of equal molar concentration and equal volume and add it to the cathode electrolytic cell; choose Cu@CuO as the anode electrode, Ag / AgCl as the reference electrode, platinum wire as the auxiliary electrode, and react for 10h under the potential of 1.0V to obtain FDCA. After testing, the conversion rate of 5-HMF reached 100%, the yield of FDCA reached 96%, and the selectivity reached 99%.
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