Synthesis of Adipic Acid
Affects of Hydrogen Peroxide Equivalents on Green Synthesis of Adipic Acid.
Andrew R. Glessman*, Chase W. Turner, Audra Cokain, Jacob Kindred, Darryl Watkins
Department of Chemistry and Chemical Biology, IUPU, 402 N. Blackford St, Indianapolis, IN 46202 aglessma@umail.iu.edu April 25, 2014
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_______________________________________________________________Abstract-
The synthesis of adipic acid has been a growing topic of discussion due to the harmful impact it has on the environment. To aid in elucidating an environmentally friendly approach, the synthesis of adipic acid via a greener oxidation reaction and a recyclable catalyst will be examined. This article will discuss how manipulating equivalents of 30% hydrogen peroxide (H2O2) affect the product yield. Results show product yield was affected when changing H2O2 equivalents. Equivalent ratio 1:4 (cyclohexene to H2O2) was most ideal, with an average yield of 27.37%. Understanding ideal greener approaches may help mediate the negative environmental impact.
_______________________________________________________________
Adipic acid (ADA) is used in the process of creating nylon polymers which have many uses in the medical field (Nylon suture) all the way to being the precursors for polymers to create PVC and other plastics. As previously stated the original process of synthesizing Adipic acid in a lab setting has a very harmful impact on the environment due to its release of a greenhouse gas (NO2). (Zhengrong Li.) This procedure requires oxidation with HNO3 in the presence of a catalyst, due to some of the negative effects that the byproducts of the reaction (NO2, N2O and NO) can have on the environment a greener method has been created1. This greener method requires oxidation (using H2O2) of cyclohexene in the presence of a PTC (Phase Transfer Catalyst) and an acid catalyst. The reason this procedure is “greener” is because the by-product is none other than water, the most abundant substance
Andrew R. Glessman*, Chase W. Turner, Audra Cokain, Jacob Kindred, Darryl Watkins
Department of Chemistry and Chemical Biology, IUPU, 402 N. Blackford St, Indianapolis, IN 46202 aglessma@umail.iu.edu April 25, 2014
Figure
_______________________________________________________________Abstract-
The synthesis of adipic acid has been a growing topic of discussion due to the harmful impact it has on the environment. To aid in elucidating an environmentally friendly approach, the synthesis of adipic acid via a greener oxidation reaction and a recyclable catalyst will be examined. This article will discuss how manipulating equivalents of 30% hydrogen peroxide (H2O2) affect the product yield. Results show product yield was affected when changing H2O2 equivalents. Equivalent ratio 1:4 (cyclohexene to H2O2) was most ideal, with an average yield of 27.37%. Understanding ideal greener approaches may help mediate the negative environmental impact.
_______________________________________________________________
Adipic acid (ADA) is used in the process of creating nylon polymers which have many uses in the medical field (Nylon suture) all the way to being the precursors for polymers to create PVC and other plastics. As previously stated the original process of synthesizing Adipic acid in a lab setting has a very harmful impact on the environment due to its release of a greenhouse gas (NO2). (Zhengrong Li.) This procedure requires oxidation with HNO3 in the presence of a catalyst, due to some of the negative effects that the byproducts of the reaction (NO2, N2O and NO) can have on the environment a greener method has been created1. This greener method requires oxidation (using H2O2) of cyclohexene in the presence of a PTC (Phase Transfer Catalyst) and an acid catalyst. The reason this procedure is “greener” is because the by-product is none other than water, the most abundant substance
References: Author, U. (n.d.). Experiment 2: Preparation of Adipic acid. Retrieved from http://pages.towson.edu/jdiscord/www/332_lab_info/Sp14332Labs/Expt2OxidationSp14.pdf Denton, R. (n.d.). How do you translate research into a journal article? IN. Peng Jin, Z. Z. (2010, October 22). Influence of reaction conditions on product distribution in the green oxidation of Cyclohexene to Adipic acid with Hydrogen Peroxide. Retrieved from Elsevier, Catalysis Today: www.elsevier.com/locate/cattod Tang, Q., Ding, K., Wang, F., Xu, L., & Zhang, M. (2010). Synthesis of adipic acid via one-step oxidization of cyclohexene. Gongye Cuihua, 66-70. Zhengrong Li., T. W. (n.d.). http://www.isasf.net/fileadmin/files/Docs/Arcachon/oraux/c21-CO27%20Wang.pdf. Retrieved from http://www.isasf.net/: http://www.isasf.net/fileadmin/files/Docs/Arcachon/oraux/c21-CO27%20Wang.pdf