淀粉-丙烯酰胺接枝共聚物的合成工艺研究

研究了淀粉-丙烯酸胺接枝共聚物的合成方法。选用硝酸铈铵作引发剂，研究了接枝反应温度、时间以及物料比等因素对接枝率的影响，实验结果表明：当淀粉与丙烯酰胺质量比为1:1.5，加入引发剂硝酸铈铵约1%，35℃反应3h，能达到接枝率90%。     

玉米淀粉与丙烯酰胺接枝共聚物的制备

本文研究玉米淀粉与丙烯酰胺接枝共聚物的合成工艺及其在造纸工艺中用作干强剂、助留/助滤剂的效果。研究表明玉米淀粉与丙烯酰胺的质量比为5：3．5，引发剂硝酸铈铵用量为0．2g，反应时间为3h，反应温度为62℃，聚合物质量较好。     

Enzymatic Method for Rapid Determination of Oxalic Acid in Bleaching Filtrates from the Pulp and Paper Industry

Bleaching with oxygen-containing agents and recirculation of process streams in the pulp and paper industry has increased the accumulation of oxalic acid and danger for precipitation of calcium oxalate encrusts, scaling. Analysis and control of oxalic acid in bleaching filtrates is therefore becoming increasingly important in the pulp and paper industry. Chromatographic methods, such as IC and HPLC, are generally more time-consuming but are valuable as standard methods for determination of oxalic acid. However, the instrumentation needed is expensive and stationary. In this study, an enzymatic method based on oxalate oxidase and peroxidase was developed to determine oxalic acid in authentic bleaching filtrates using a spectrophotometer. The results showed that bleaching filtrates contain some compounds interfering with the enzymatic method. Pretreatment of the samples with activated charcoal was a successful approach for decreasing problems with interference. By using dilution followed by charcoal treatment, the results obtained from five bleaching filtrates with the colorimetric method correlated very well with those obtained using IC. This study offers a selective, fast and mobile analysis method to determine oxalic acid in bleaching filtrates from the pulp and paper industry. The convenient enzyme-based method improves the possibilities for control of critical oxalic acid concentrations in closed-loop bleaching streams.     

造纸黑液生物处理的研究

利用从造纸厂黑液排放渠道污泥中分离和提纯的优势菌，研究了造纸黑液的生物处理。结果表明：当进水COD浓度为11000mg／L时，经过厌氧好氧处理，系统的总去除率达93％以上。同时显示，木霉、根霉菌对黑液降碱有良好效果，可为造纸黑液的处理工艺提供必要的技术参考。     

新生二氧化锰吸附法处理造纸黑液

报道了用新生MnO2处理造纸黑液的新方法，实验表明，MnO2对造纸黑液的CODCr和色度有较强的去除能力，其去除率分别为57．6％和91．5％。吸附后的MnO2经再生后可重复使用。     

三相流化床捕集苇茉的研究

介绍了苇茉的性质和三相流化床除尘器的性能，并进行了捕集苇茉的试验研究。试验结果表明三相流化床除尘器捕集苇茉的效果非常理想。     

光催化技术降解废纸制浆废水的模型建立

在氙灯照射下,采用光-Fenton工艺对废纸制浆废水进行了处理,并对其反应过程进行了动力学模型的研究．实验结果表明：光-Fenton反应可有效矿化废纸制浆废水中的有机物,且其矿化过程符合一级反应动力学,速率常数与H2O2、FeSO4和温度有关．在本实验条件范围内,求得了光催化技术降解废纸制浆废水的模型,并通过实验验证表明,该模型能很好反映光-Fenton工艺对废纸制浆废水TOC的去除．     

羟丙基氧化淀粉的制备及在造纸中的应用

羟丙基氧化淀粉是复合型变性淀粉,取代基醚键稳定性高,淀粉糊化容易,糊液透明度高,流动性好,稳定性高,糊的成膜性好,耐折性好,与大多数胶液配方的组分以及涂层颜料的相溶性好,适合造纸工业使用。对羟丙基氧化淀粉的制备、性质及应用进行了介绍。