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| Number | Title | Issue Date |
| 7271120 | Catalyst for the synthesis of dimethyl carbonate from urea and methanol, preparation and use thereof A catalyst for the preparation of dimethyl carbonate from urea and methanol having a composition on weight base of: active component of from 20 to 50 wt %, and carrier of from 80 to 50 wt %, and prepared by equal-volume spraying and impregnating method is disclosed.... | 09/18/2007 |
