The invention provides an application of a benzoate compound in a synthesis process of
copper phthalocyanine, which comprises the following steps: S1, adding 3g of benzoate compound, 310g of 100%
phthalic anhydride, 231g of
urea and 1500ml of
solvent alkylbenzene into a 3000ml three-neck
bottle provided with a stirring device, a
thermometer and a condenser, uniformly heating to 170 DEG C within 4 hours while stirring, and keeping the temperature for 2 hours; s2, 231 g of
urea is added, the temperature is evenly increased to 190 DEG C within one hour, and heat preservation is conducted for 2 hours; s3, adding 61 g of 100%
cuprous chloride and 4 g of 100%
ammonium molybdate, uniformly heating to 210 DEG C within 5 hours, carrying out heat preservation and stirring reaction for 6 hours, and cooling to 100 DEG C; according to the application of the benzoate compound in the synthesis process of the
copper phthalocyanine, a proper amount of the benzoate compound is added in the synthesis process of the
copper phthalocyanine, so that the product yield is increased, the consumption of raw materials is reduced, and the emission of three wastes is reduced, and therefore, the production cost is reduced, and the
pollution to the environment is reduced.