Çevre Dostu Çözücüler Kullanarak Levulinik Asidin Reaktif Ekstraksiyonunun Deneysel Tasarımı

Öz

Levulinik asit, endüstrinin birçok farklı alanında kullanılan bir karboksilik asittir. Tarım alanında pestisit ve gübre amaçlı olarak kullanılmaktadır ve ayrıca kendine özgü karamel kokusu nedeniyle kozmetik sektöründe ve aromatik özellikleri nedeniyle gıda sanayisinde kullanılır. Karboksilli asitler genellikle endüstride fermantasyon işlemleriyle üretilir ve nihai ürün konsantrasyonu sulu çözeltide yaklaşık % 10'dur. Asitin sulu çözeltiden ayrılması için birçok farklı yöntem vardır. Bunlardan biri reaktif ekstraksiyondur. Bu çalışmada, Tri-n-oktil fosfin oksit ve çevre dostu solventler (Dietil süksinat + 1-Bütil-3-metilimidazolyum hekzafulorofosfat) kullanılarak reaktif ekstraksiyon yoluyla sulu çözeltiden levulinik asidin uzaklaştırılması amaçlanmıştır. Deneysel tasarım uygulanmış ve optimum deney sonuçları hesaplanmış ve veriler ANOVA ile analiz edilmiştir. Deneysel çalışma sonucunda maksimum ekstraksiyon verimliliği % 55.1 olarak bulunmuştur. Ekstraksiyon verimliliği için bağımsız değişkenler arasındaki model denklemi belirlenmiştir. Bu verilere göre, elde edilen R² değeri 0.9899 olarak hesaplanmıştır.

Anahtar Kelimeler

• Levulinik asit,Reaktif ekstraksiyon,Iyonik sıvılar,Karboksilik asit

Experimental Design of Reactive Extraction of Levulinic Acid Using Green Solvents

Öz

Levulinic acid is a carboxylic acid used in many different areas of the industry. It is used as pesticide and fertilizer in agriculture industry, and it is also used in the cosmetic industry due to its unique caramel odor and in the food industry due to its aromatic properties. Carboxylic acids are generally produced in the industry by fermentation processes, and the final product concentration is approximately 10% in aqueous solution. There are many different methods for the separation of acid from an aqueous solution. One of them is reactive extraction. In this study, it was aimed to remove levulinic acid from aqueous solution by reactive extraction using Tri-n-octylphosphine oxide and environmentally friendly solvents (Diethyl succinate+1-Butyl-3-methylimidazolium hexafluorophosphate). The experimental design was performed, and optimum experimental results were calculated, and data were analyzed with ANOVA. As a result of the experimental study, the maximum extraction efficiency was found as 55.1%. The model equation between the independent variables for the extraction efficiency was determined. According to these data, the obtained R² value was calculated as 0.9899.

Anahtar Kelimeler

• Levulinic acid,Reactive extraction,Ionic liquids,Carboxylic acid

Kaynakça

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