摘要
采用前加碱法制备阴离子聚丙烯酰胺絮凝剂（APAM）。最佳工艺条件为：ρ（乙二酸四乙酸）=0．1mg／L，反应温度24～26℃，ρ（引发剂）=22～24mg／L，w（丙烯酰胺）=24％～28％，ρ（异丙醇）=35μg／L，pH=10，在该条件下可得到粘均相对分子质量达2．1×10^7的APAM。将APAM用于处理化工污水，当ρ（APAM）=4mg／L时，污水的浊度去除率为95．04％，CODcr去除率为86．32％。
Anionic polyacrylamide （APAM） of high molecular weight was prepared. The optimal conditions were found as follows： the concentrations of ethylene diamine tetraaeetie acid, initiator, isopropanol and acrylamide were 0.1 mg/L, 22- 24 mg/L, 35 μg/L and 24%-28%, respectively, reac tion temperature 24- 26 ℃, pH=10. Under these conditions, the molecular weight of the polyacryl- amide reached 2.1 × 10^7. Application results showed that when the dosage of APAM was 4 mg/L, removal rates of turbidity and CODcr were 95.04% and 86. 32% respectively.
出处
《精细石油化工》
CAS
CSCD
北大核心
2006年第2期4-7,共4页
Speciality Petrochemicals
