بررسي متغيرهاي موثر در فرايند تهيه ايزوپروپيل الكل به روش هيدراسيون (آبدهي) غير مستقيم

Investigation of Effective Factors in Isopropyl alcohol Synthesis Process by Indirect Hydration

Isopropyl alcohol (IPA) is produced through different routes; there are two main commercial methods which are using propene as the starting material. The first one is indirect hydration method and using sulfuric acid as the catalyst, the second is direct hydration and using heterogeneous polymeric acid catalysts. In this work, common method i. e. indirect hydration with sulfuric acid has been used to produce IPA. All experiments carried out in one liter high pressure reactor with propene and sulfuric acid as reactants by semi -batch process technique. Experimental design was uni variable i. e. different acid concentration (65%, 75%, 85%, and 95%) and temperatures (25°C, 35°C, 45°C, and 60°C) by pressure 120psi studied. IPA technical grade (80%) produced in optimum condition. HNMR, FTIR and specific gravity analysis of dried sample by sodium sulfate showed that produced sample is compatible with standard. Also samples purities were determined by GC method.