EV Battery grade Diethyl carbonate (sometimes abbreviated DEC) is an ester of carbonic acid and ethanol with the formula OC(OCHCH).
At room temperature (twenty five degree celsius) diethyl carbonate is a colorless liquid with a low flash point.It can also be synthesized directly from carbon dioxide and ethanol using various methods, and via oxidative carbonylation with carbon monoxide.
Another method is transesterification from dimethyl carbonate. Yet another method is from the reaction of ethyl nitrite and carbon monoxide, where the ethyl nitrite can be made from nitric oxide and ethanol. This method requires a catalyst such as palladium.
Diethyl carbonate is used as a solvent such as in erythromycin intramuscular injections. It can be used as a component of electrolytes in lithium batteries.
It has been proposed as a fuel additive to support cleaner diesel fuel combustion because its high boiling point might reduce blended fuels’ volatility, minimizing vapor buildup in warm weather that can block fuel lines. As a fuel additive, it can reduce emissions such as volatile organic compounds, CO, and particulates.
The Global EV battery grade Diethyl carbonate market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
EV Battery Grade Diethyl carbonate: critical review of synthesis routes, catalysts used and engineering aspects EV Battery Grade Diethyl carbonate (DEC) is a well-known linear organic carbonate that has wide applications.
Besides its use as a fuel additive, DEC is an excellent electrolyte for lithium ion batteries and is used for the production of polycarbonates, which are globally used engineering plastics.
The synthesis of DEC from CO2 helps in CO2 mitigation. It was earlier synthesized by phosgenation of ethanol, which is a toxic and dangerous process.
Certain non-phosgene routes have been developed in recent years, which include oxidative carbonylation of ethanol, trans-esterification of carbonate, alcoholysis of urea, ethanolysis of CO2 and the ethyl nitrite route for DEC synthesis.
This underlines various non-phosgene methods for the synthesis of DEC by critically evaluating the catalysts used, operating conditions and mechanism of synthesis
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