发明名称 |
PROCESSES FOR THE PRODUCTION OF DIARYL CARBONATES AND TREATMENT OF ALKALICHLORIDE SOLUTIONS RESULTING THEREFROM |
摘要 |
<p>Processes for the Production of Diaryl Carbonates and Treatment of Alkalichloride Solutions Resulting Therefrom Processes comprising: (a) reacting phosgene and a monohydroxyl aryl compound in the presence of a suitable catalyst to form a diaryl carbonate and a solution comprising an alkali chloride; (b) separating the diaryl carbonate from the solution; (c) adjusting the pH of the solution to a value of less than or equal to 8 to form a pH-adjusted solution; (d) treating the pH- adjusted solution with an adsorbent to form a treated solution; (e) subjecting at least a portion of the treated solution to electrochemical oxidation to form chlorine and an alkali hydroxide solution; and (f) recycling at least a portion of one or both of the chlorine and the alkali hydroxide solution. Figure (None)</p> |
申请公布号 |
SG140577(A1) |
申请公布日期 |
2008.03.28 |
申请号 |
SG20070063704 |
申请日期 |
2007.08.30 |
申请人 |
BAYER MATERIALSCIENCE AG |
发明人 |
BULAN ANDREAS;OOMS DR. PIETER;WEBER DR. RAINER;RECHNER DR. JOHANN;BUTS MARC;EYNDE JOHAN VANDEN |
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