解析酞菁绿制造中的铜酞菁氯代反应机理

Analysis on Chlorination Theory of Copper Phthalocyanine in Producing Phthalocyanine Green

该文解析酞菁绿制造中的铜酞菁氯代反应机理,铜酞菁具有双分子结构,是酞菁绿的氯原子取代度最多只有15个的根本原因.铜酞菁氯代可以在固-固反应体系中进行,三氯化铝将氯气转化为固态,参与反应,反应历程最关键的步骤是生成σ络合物中间体,加入氯化亚铜作用的机理是防止中心离子脱落,加入氯化钠作用的机理是剥开铜酞菁粒子.铜酞菁氯代也可以在液-液反应体系中进行,焦硫酰氯将氯气转化为液态,参与反应,反应历程表明,氯磺酸很容易对铜酞菁进行酰氯化,首先得到磺酰氯基铜酞菁,然后的去SO2是整个反应的控制步骤.

The passage made analysis on chlorination theory of copper phthalocyanine in producing phthalocyanine green. Copper phthalocyanine is a bi-molecular structure which is the fundamental cause for the 15 max. chlorination substitute. Chlorination of copper phthalocyanine can be achieved in reaction between solids. Aluminl＇um choridecan solidize chlorine taking part in the action. The key step of the reaction mechanism is generating ~ complex intermediate, meanwhile in the action addingcupmus chloride topreventfromfalling of central ion and adding sodium chlorideto baring CuPcion. Chlorination of copper phthalocyanine can also be achieved in reaction between liquids. Pyrosulfuryl chloride can liquidize chlorine and be reacted. The reaction process shows chlorosulfonic acid can easily chloridize copper phthalocyanine and get chlorosulfonyl phthalocyanine first, de-SO2 afterwards to control the reaction.