A method for producing an aromatic carbonate, comprising: (1) performing a reaction between an organometal compound and carbon dioxide to obtain a reaction mixture containing a dialkyl carbonate formed by the reaction, (2) separating the dialkyl carbonate from the reaction mixture to obtain a residual liquid, (3) reacting the residual liquid with an alcohol to form at least one organometal compound and form water and removing the water from the organometal compound, and (4) reacting the dialkyl carbonate separated in step (2) with an aromatic hydroxy compound to obtain an aromatic carbonate.
PROCESS FOR OBTAINING A DIALKYL CARBONATE AND AN ALKYLENE GLYCOL
申请人:SCHMIDT Andrea
公开号:US20130144080A1
公开(公告)日:2013-06-06
The invention relates to a process for obtaining a dialkyl carbonate and an alkylene glycol from a stream comprising dialkyl carbonate, alkylene carbonate, alkylene glycol and alcohol, comprising the following steps:
(a) distillatively removing a stream (
5
) comprising dialkyl carbonate and alkylene glycol as a heteroazeotrope from the stream comprising dialkyl carbonate, alkylene carbonate, alkylene glycol and alcohol in a first distillation stage (
1
),
(b) separating the stream (
5
) comprising dialkyl carbonate and alkylene glycol as a heteroazeotrope into a first crude product stream (
27
) comprising essentially di-alkyl carbonate and a second crude product stream (
29
) comprising essentially alkylene glycol in an apparatus for phase separation (
25
).
NONAQUEOUS ELECTROLYTE SOLUTION FOR POWER STORAGE DEVICES
申请人:Tomiyama Pure Chemical Industries, Limited
公开号:EP3771014A1
公开(公告)日:2021-01-27
To provide a non-aqueous electrolytic solution for a storage device, which can reduce the electric resistance, which is excellent in cycle properties, and which can suppress gas generation by the reaction of the non-aqueous electrolytic solution, and a storage device.
A non-aqueous electrolytic solution for a storage device having an electrolyte dissolved in a non-aqueous solvent, wherein the electrolyte is a lithium salt soluble in the non-aqueous solvent, and the non-aqueous electrolytic solution contains an organic sulfone compound represented by the following formula (1):
wherein the symbols are as defined in the description.