Treatment of the residues generated by polyaniline synthesis in pre-pilot scale

Química Nova

Araújo, Olacir Alves¹  Sousa, Rafael Arromba de¹  Freitas, Patrícia S. de¹  De Paoli, Marco-A.¹  Universidade Estadual de Campinas, Campinas¹ 

关键词: polyaniline;    residues;    coal.;   

DOI  :  10.1590/S0100-40422003000600027

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Polyaniline (PAni) is one of the most studied conducting polymer. It can be synthesized by two methods: electrochemical or chemical oxidation. The chemical oxidation is more adequate to produce large quantities of polymer. Regardless of the synthesis scale, the treatment of the residues before its final destination is very important and necessary because it contains toxic aniline derivatives (carcinogens in some cases), acids and inorganic salts, both with low toxicity. In this work we discuss the methods used to treat these residues and to eliminate and discard the toxic substances. These were extracted from the reaction residues by using activated coal and the pH of the residue was neutralized.

【 授权许可】

Unknown