发明申请
US20070299282A1 Method for the Production of Phthalic Dichloride 审中-公开
邻苯二甲酸二氯生产方法

Method for the Production of Phthalic Dichloride
摘要:
A process for preparing phthaloyl chloride by reacting phthalic anhydride with a chlorinating agent (I) selected from the group of thionyl chloride and phosgene in the presence of a catalyst at a temperature of from 80 to 200° C. and a pressure of from 0.01 to 10 MPa abs, in which the catalyst (II) used is triphenylphosphine, triphenylphosphine oxide or a mixture thereof.
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