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US 2025/0034077 A1Published application
Method for producing carbonate
AssigneeLotte Chemical Corporation
InventorsMi Hwa Baek, Wang Gyu Kim, Jong Myung Choi, Eun Hye Han, Jin Hyung Kim
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Abstract
The present invention relates to a method for producing a carbonate. The method of the present invention can safely remove a catalyst used in a carbonate production reaction. The method of the present invention can prevent defects that may occur due to the catalyst in the process of purifying the product in the carbonate production reaction. The method of the present invention can produce the carbonate in high yield.
Claims8
A method for producing a carbonate comprising:
- a reaction step of reacting raw materials containing dimethyl carbonate and ethanol in the presence of a catalyst to produce a product containing ethyl methyl carbonate and diethyl carbonate;
- a catalyst neutralization step of adding a catalyst remover to the product to produce a neutralizing salt of the catalyst and the catalyst remover;
- and
- a neutralizing salt removal step of removing the neutralizing salt,
- wherein the catalyst remover has a pKa value of 2.0 or less.
2 more elements
Dependencies are inferred from the claim text.