发明名称 PROCESS FOR PREPARING DIARYL CARBONATES OR ALKYL ARYL CARBONATES FROM DIALKYL CARBONATES
摘要 Producing alkylaryl carbonates and/or diaryl carbonates from dialkyl carbonates and aromatic hydroxy compounds in the presence of a catalyst in a distillation column, which completely or partially prevents cross-mixing of liquid- and/or vapor stream using a separation device that is subdivided into a feed line and a discharge line, comprises supplying an aromatic hydroxy compound containing stream (21) and dialkyl carbonate-containing stream (22) to the feed line and separating one or more middle boiling fractions containing reactants and/or reaction byproducts, in a vapor or liquid form. Producing alkylaryl carbonates and/or diaryl carbonates from dialkyl carbonates and aromatic hydroxy compounds in the presence of a catalyst in a reactive distillation column, which completely or partially prevents cross-mixing of liquid- and/or vapor stream using a longitudinally effective separation device that is subdivided into a feed line located in a reaction zone, and a discharge line, comprises supplying an aromatic hydroxy compound containing stream (21) and dialkyl carbonate-containing stream (22) to the feed line and separating one or more middle boiling fractions containing reactants and/or reaction byproducts, in the form of vapor or liquid.
申请公布号 SG10201401327T(A) 申请公布日期 2014.05.29
申请号 SGT10201401327 申请日期 2010.04.05
申请人 BAYER MATERIALSCIENCE AG 发明人 ANDRE DÜX;DR. HELMUT MOTHES;KASPAR HALLENBERGER;DR. GEORG RONGE;RAFAEL WARSITZ;DR. PIETER OOMS;DR. JOHANN RECHNER
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