脱水改性造纸黑液的性能与应用

摘要

分析了脱水改性造纸黑液的组成,并进行了物化性质和表面活性测试,结果表明：脱水改性造纸黑液是一种阴离子表面活性剂,含有大量的高分子有机酸及多糖类成分；该表面活性剂的表面张力为44.602 mN/m；钙皂分散指数LSDP为11.6%；起泡沫力(15 mm)为40 mm(5 min后),对溶液的pH值有很好的缓冲容量,在pH=6.12～12.86,它的溶液均匀稳定。并介绍了在石油工业、磷肥生产与工业循环冷却水中的应用。%A new tpye of anionic surfactant was produced from alkaline pulping waste liquor of reed or straw by chemical modifcation with acidic minerals and dehydration in solar pond. The product's surface tention is 44.602 mN/m; lime soap dispersing power (LSDP) is 11.6%; foaming ability is 40 mm/15mm(5min), and it has better buffer capacity within pH=6.12～12.86. It's applications in petroleum and phosphatic fertilizer production and in cooling water treatment are introduced.