Method of making adipic acid using nano catalyst
AssigneeKing Abdulaziz City for Science and Technology (KACST)
InventorsAhmad S. ALSHAMMARI, Abdulaziz A. BAGABAS, Angela KÖCKRITZ, Venkata Narayana KALEVARU, Andreas MARTIN
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Abstract
A method for direct synthesis of adipic acid (AA) adopting green catalytic oxidation route of cyclohexane (CH) using the bimetallic catalysts is described. The reaction to convert CH into AA in the presence of bimetallic catalyst is carried in an autoclave in the temperature range of 25 to 300° C. The CH conversion was over 21% with AA selectivity of 34% and ca. 63% selectivity of cyclohexanone and cyclohexanol together over Au—Pd/TiO2 bimetallic catalyst.
Claims6
A method of making adipic acid(AA), comprising:
- oxidizing a cyclic paraffin mixed with a solvent using a gas, an inert atmosphere and a nano-bimetallic catalyst in an autoclave;
- and
- applying a specific pressure and a specific temperature to the autoclave while oxidizing the cyclic paraffin to make adipic acid.
The method of making adipic acid(AA) as in claim 15, wherein the cyclic paraffin is cyclohexane.
The method of making adipic acid(AA) as in claim 15, wherein the gas is at least one of oxygen, air and mixture of oxygen and nitrogen.
The method of making adipic acid(AA) as in claim 15, wherein the nano-bimetallic catalyst is AuPd/TiO2 catalyst.
The method of making adipic acid(AA) as in claim 15, wherein the temperature is between 50-250° C.
The method of making adipic acid(AA) as in claim 15, wherein the specific pressure is at least one of atmospheric, sub-atmospheric and super-atmospheric.
Dependencies are inferred from the claim text.