| 摘要 |
In an embodiment, a method for producing an alkyl aryl carbonate, comprises providing a purified dialkyl carbonate stream and a first purified alkanol stream; reacting the purified dialkyl carbonate stream to produce a diaryl carbonate stream, and (i) an aromatic alcohol stream and a second dialkyl carbonate stream, or (ii) a second dialkyl carbonate stream, and separating an aromatic alcohol from the second dialkyl carbonate stream to produce an aromatic alcohol stream comprising the aromatic alcohol; directing a first portion of aromatic alcohol stream to a dialkyl carbonate purification unit; reacting the second dialkyl carbonate stream, the second portion of aromatic alcohol stream, and a first aromatic alcohol feed stream to produce an alkanol stream, and an alkyl aryl carbonate stream; and purifying the alkanol stream and the first portion stream in the dialkyl carbonate purification unit to provide the purified dialkyl carbonate stream and the first purified alkanol stream; wherein purifying comprises extracting the dialkyl carbonate with the aromatic alcohol. |
