SE-I型混凝剂在水处理中的应用

利用透射电镜和微孔滤膜超滤法研究了SE -I和PAC混凝剂的结构形貌和相对分子质量分布情况 ;比较了SE -I和PAC混凝处理油田含油废水、煤矿矿井废水和水库水的效果。实验结果表明 ,SE -I较PAC具有更大的枝化度和相对分子质量 ,体现在水处理效果上是SE -I较PAC有更好的除油、除浊、去除COD和脱色效果。SE -I型混凝剂是一种高效水处理剂     

硅烷处理N2O氧化苯生产苯酚催化剂抑制结碳失活研究

The main cause to the deactivation of ZSM-5 catalyst, used for oxidation of benzene to phenol (BTOP) by nitrous oxide, is that the carbon deposition on the catalyst surface blocks the mouth of pores of the catalyst.In the experiments, ZSM-5 catalyst was modified by chemical surface deposition of silicon, and then the effect of modification condition on the catalyst activation was studied. The catalyst samples were characterized by XRF,EPS, XRD, TEM, N2 adsorption at low temperature, pyridine adsorption-infrared technique and etc. All the above results show that the uniform SiO2 membrane can be formed on ZSM-5 crystal surface. The SiO2 membrane covers the acid centers on ZSM-5 surface to inhibit surface coking, to avoid or decrease the possibility of ZSM-5 pore blockage so that the catalyst activity and stability can be improved efficiently. The optimum siliconiting conditions determined by the experiments are as follows: 4% load of silanizing agent, volume (ml)/mass (g) ratio of hexane/ZSM-5=15/1, and 16 h of modification time. Compared with the samples without siliconiting treatment,the samples treated under the above optimum condition can increase the productivity of phenol by 14% for 3 h reaction time and by 41% for 6 h reaction time respectively.     

丙烯腈催化剂工业运行条件优化数学模型的开发与应用

工业运行条件直接影响丙烯腈催化剂的实际运行效果。针对MB -86催化剂建立的工业运行条件优化神经网络模型 ,充分发挥催化剂的固有反应活性 ,延长了旧催化剂的使用寿命 ,指导了生产优化。该模型也适用于同类催化剂的工业运行条件优化。     

SE—Ⅰ型混凝剂在水处理中的应用

利用透射电镜和微孔滤膜超滤法研究了SE－I和PAC混凝剂的结构形貌和相对分子质量分布情况；比较了SE－I和PAC混凝处理油田含油废水、煤矿矿井废水和水库水的效果。实验结果表明，SE－I较PAC具有更大的枝化度和相对分子质量，体现在水处理效果上是SE－I较PAC有更好的除油、除浊、去除COD和脱色效果。SE－I型混凝剂是一种高效水处理剂。     

多管齐下夯基础 综合管理见成效

１９９７年１１月１０日，齐鲁石化公司兼并了淄博石油化工厂，并成立了齐鲁石化公司丙烯腈厂。面对百废待兴的局面，我们在中石化集团公司和齐鲁石化公司的正确领导下，坚持以人为本，以经济效益为中心，以安全生产为前提，充分依靠中石化集团公司和齐鲁石化公司的整体优...     

丙烯腈单收与工艺参数的选择

影响丙烯腈单收的因素有很多，这给生产中选择合适的工艺条件，提高丙烯腈单收带来了许多困难。在实验的基础上，利用较为系统的试验数据，经数理统计处理、理论分析得出了丙烯腈单收与多个工艺参数存在着显著的线性关系，这种定量关系对于选择合适的工艺参数，提高丙烯腈单收具有重要意义