Direct synthesis of a high-density aviation fuel using a polycarbonate was written by Wang, Lulin;Han, Fengan;Li, Guangyi;Zheng, Min;Wang, Aiqin;Wang, Xiaodong;Zhang, Tao;Cong, Yu;Li, Ning. And the article was included in Green Chemistry in 2021.Quality Control of Diphenyl carbonate The following contents are mentioned in the article:
High-d. cyclic hydrocarbons were first synthesized with high carbon yields by a one-pot transfer hydrodeoxygenation of a polycarbonate (PC) using isopropanol as the solvent and hydrogen donor at the same time. RANEY nickel was found to be an effective catalyst for the conversion of the PC in isopropanol. Over it, the pure PC pellet was completely converted to a mixture of C6-C15 oxygenates, aromatics and cycloalkanes after the reaction was carried out at 463 K for 1 h. The catalytic performance of RANEY Ni was further improved after the introduction of solid acids as co-catalysts. Among the investigated solid acids, ultrastable Y (USY), a com. acidic zeolite, demonstrated the best promotion effect, which can be explained by its larger pore size and suitable acidity. Under the optimized conditions, an ∼75% carbon yield of C6-C15 cyclic hydrocarbons was achieved from the one-pot transfer hydrodeoxygenation of a chopped DVD disk under the co-catalysis of RANEY Ni and USY. According to our measurement, the C6-C15 cyclic hydrocarbon mixture as obtained has a high d. (0.94 g mL-1), good volumetric net heat of combustion (NHOC) (41.5 MJ L-1) and low f.p. (202 K-188 K). In real applications, it can be used as a potential substitute for currently used high-d. aviation fuels. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Quality Control of Diphenyl carbonate).
Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Quality Control of Diphenyl carbonate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics