摘要
聚苯乙烯常用来制作隔热保温防震的泡沫包装材料,废弃的聚苯乙烯在自然条件下难以降解,将废弃的聚苯乙烯泡沫减容后经过硝化-氧化反应将其制成对硝基苯甲酸是实现其资源化利用的有效途径之一。本论文研究了聚苯乙烯的硝化氧化工艺,优化了工艺条件:温度100℃,氧化剂过量,水和浓硫酸体积比为1:1,反应时间为18h时,在加入金属盐作催化剂的条件下产率能达到28%。利用紫外和红外光谱对产物进行表征。
Polystyrene is usually used to make heat insulation and shockproof packaging materials, but polystyrene is polymerized from olefin, it is hard to be degraded under natural conditions. Low the volume of waste polystyrene and used as raw materials to make p-nitrobenzoic acid by nitration reaction and oxidation reaction. After research we found when reaction temperature is 100 ℃, the ratio of water to sulfuric is 1 ： 1, oxidant excess, reaction time is 18 h, the yield of p-nitrobenzoic acid will reach 30 %. We studied nitration products and oxidation products by UV-spectrum and 1R-spectrum.
出处
《广东化工》
CAS
2013年第7期9-11,共3页
Guangdong Chemical Industry
基金
湖北省自然科学基金2010CDA089
