| 摘要 |
<p>A method for efficient reclamation of metal catalyst species from aqueous extract streams of diaryl carbonate synthesis, comprising treating a metal-containing aqueous extract stream of a mixture from the production of diaryl carbonates with a precipitating agent effective to selectively precipitate one or more metal catalyst species from the extract. Use of these methods substantially reduces both financial and environmental concerns for the preparation of diaryl carbonates.</p> |
