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

Quimica nova

Araújo, Olacir Alves¹  Sousa, Rafael Arromba de¹  Freitas, Patrícia S. de¹  De Paoli, Marco-A.¹ 

[1] Universidade Estadual de Campinas, Campinas

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 studiedconducting polymer. It can be synthesized by two methods: electrochemical orchemical oxidation. The chemical oxidation is more adequate to produce largequantities of polymer. Regardless of the synthesis scale, the treatment of theresidues before its final destination is very important and necessary becauseit contains toxic aniline derivatives (carcinogens in some cases), acids andinorganic salts, both with low toxicity. In this work we discuss the methodsused to treat these residues and to eliminate and discard the toxic substances.These were extracted from the reaction residues by using activated coal andthe pH of the residue was neutralized.

【 授权许可】

CC BY