METHOD OF INHIBITING POLYMERIZATION GIVING COPOLYMER OF DIVINYLBENZENE AND AROMATIC VINYL COMPOUND
申请人:Hakuto Co., Ltd
公开号:EP1813585A1
公开(公告)日:2007-08-01
[PROBLEMS] To provide: a method by which the generation of a copolymer of an aromatic vinyl compound and either the divinylbenzene generated in the production of the aromatic vinyl compound or the divinylbenzene which has come into the system together with a raw material for the aromatic vinyl compound is inhibited in the steps of distilling, purifying, and storing the aromatic vinyl compound: and a method of inhibiting the copolymer from depositing on and thus fouling devices and facilities.
[MEANS FOR SOLVING PROBLEMS] The method of inhibiting the generation of a copolymer of divinylbenzene and an aromatic vinyl compound is characterized in that a dinitrophenol compound (A), a sulfonic acid compound (B), and a p-phenylenediamine compound (C) are simultaneously used in the steps of producing, purifying and storing the aromatic vinyl compound.
[问题]提供:一种方法,通过该方法,在蒸馏、提纯和储存芳香族乙烯基化合物的步骤中,可抑制芳香族乙烯基化合物与芳香族乙烯基化合物生产过程中产生的二乙烯基苯或与芳香族乙烯基化合物原料一起进入系统的二乙烯基苯的共聚物的生成;以及一种方法,通过该方法,可抑制共聚物沉积在装置和设施上,从而使其结垢。
[解决问题的方法] 抑制二乙烯基苯和芳香族乙烯基化合物共聚物生成的方法,其特征在于在生产、提纯和储存芳香族乙烯基化合物的步骤中同时使用二硝基苯酚化合物(A)、磺酸化合物(B)和对苯二胺化合物(C)。