论文部分内容阅读
以丙烯酰氯、对氨基苯甲酸为原料,通过N酰化反应及中和反应合成单体——对丙烯酰胺苯甲酸钠(a),并以过硫酸铵/亚硫酸氢钠为复合引发剂,以自制的对丙烯酰胺苯甲酸钠和甲基丙烯酰氧乙基三甲基氯化铵(DMC)为单体通过水溶液自由基共聚法合成了二元聚合物(b)。利用延长原油模拟的原油乳液对聚合物的破乳性能进行了考察,同时研究了聚合物的絮凝性能和对含油废水的除油效果。结果表明,在破乳温度70℃、处理时间2 h的条件下,当聚合物(b)投加量为110 mg/L时,脱水率达92.04%;在室温下,当自制聚合物投加量为12 mg/L时,硅藻土悬浮液上层清液的絮凝时间为9 s,透光率为98.6%;在聚合物投加量为30 mg/L、温度为50℃、处理时间为7 h的条件下,对含油废水的除油率达94.5%;与市售破乳剂BQ-05、SP-169及市售絮凝剂PAM、PDMC相比,自制聚合物具有更好的絮凝破乳性能。
Acryloyl chloride and p-aminobenzoic acid were used as raw materials to synthesize the monomer - sodium acrylamide amide (a) by N acylation reaction and neutralization reaction, and ammonium persulfate / sodium bisulfite as the composite initiator Home made of acrylamide sodium benzoate and methacryloyloxyethyl trimethyl ammonium chloride (DMC) as a monomer through the aqueous solution of the radical polymerization of binary polymer (b). The emulsion breaking performance of the polymer was investigated by using crude oil emulsion extended with crude oil. The flocculation property of the polymer and the degreasing effect on oily wastewater were also studied. The results showed that the dehydration rate reached 92.04% when the dosage of polymer (b) was 110 mg / L under the conditions of 70 ℃ demulsification temperature and 2 h treatment time. When the self-made polymer was added at room temperature The flocculation time of the supernatant of diatomite suspension was 9 s and the light transmittance was 98.6% at the dosage of 12 mg / L. When the dosage of polymer was 30 mg / L, the temperature was 50 ℃, the treatment time was 7 h, the removal rate of oily wastewater was 94.5%. Compared with the commercially available demulsifiers BQ-05 and SP-169 and the commercially available flocculants PAM and PDMC, the self-made polymers had better flocculation and demulsification performance.