| 摘要 |
PROBLEM TO BE SOLVED: To provide a process for producing a copper phthalocyanine compound capable of preventing blockage of a gas discharge pipe during an imidation reaction by a simple reform of a production apparatus.SOLUTION: The process for producing a copper phthalocyanine compound comprises: (a) allowing phthalic acid and ammonia to react with each other in an organic solvent to obtain phthalimide, discharging gas containing at least the organic solvent and steam as a reaction product from a reaction apparatus, and allowing the reaction to proceed while liquefying the discharged organic solvent gas in the discharge pipe and returning the solvent to the reaction apparatus, as a first step; and (b) allowing the phthalimide obtained in the first step to react with a copper compound and urea in the presence of a catalyst to obtain a copper phthalocyanine compound, as a second step. In the first step, a temperature (T1) of the discharge pipe is set to a temperature satisfying the relation of T2≤T1<T3 with respect to the boiling point (T2) and the boiling point (T3) of the organic solvent under the pressure in the first step. |
