Researchs on Synthesis of Zeolite Y From Pyrophyllite

用福州叶蜡石，在适量补硅的条件下，可合成出y型沸石产物，用Xrd进行了表征，其硅铝比为4.1~5.0，每克叶蜡石可制出1.2克产品，对焙烧和合成过程进行了分析和讨论，试验结果表明：叶蜡石可作为合成y型沸石的廉价原料，有良好的应用前景。Zeolite Y was synthesised From Fuzhou pyrophyllite under condition of adding an amount of Na_2 SiO_3.The products were characterized by XRD.The ratio of SiO_2/Al_2O_3 equals 4.1￣5.0.The per gram pyroaphyllite yield of zeolite Y is 1.2 gram.The process of roast and synthesis were analyzed and discussed.The results of experiments show that the pyrophyllite can act as a kind of low-priced raw material For the synthesis of Zeolite Y and displays good application prospects

关于“经济发展方式转变进程中的财税政策”的探讨(笔谈)

转变经济发展方式是当前中国的热门话题,而上海在城市发展中又肩负着率先转变的重要任务,在这一意义和背景下,2010年4月24日由上海金融学院学院主办、上海金融学院公共经济管理学院承办的“《中国城市财政发展报告2009/2010:促进‘两个中心’建设的上海城市财政》首发式暨‘经济发展方式转变进程中的财税政策’论坛“在我校举行。与会专家围绕经济发展方式转变进程中的财税政策的“趋势与目标“、“机遇和挑战“、“实施方略“和“地方实践“等四个专题进行研讨,各抒己见,智慧交锋。现将其真知灼见整理摘要与读者分享,以期待更多学者共同关注当前经济发展方式转变进程中的财税政策

一种用于被动型小氢钟快速调制锁定的数字移相装置

本发明涉及一种用于被动型小氢钟快速调制锁定的数字移相装置，包括：一可编程控制芯片，所述可编程控制芯片接收由一压控晶体振荡器提供的输入参考时钟信号；所述可编程控制芯片分别输出一用于控制所述被动型小氢钟的数字调制的调制控制信号，以及用于分离信号的具有相位差的两个移相信号；所述可编程控制芯片包括对所述输入参考时钟信号移动第一相位的第一移相电路，以输出第一移相信号，以及将所述第一移相信号滞后第二相位的第二移相电路，以输出第二移相信号。采用本发明可实现简单可行、成本低的数字移相

InFluence of Magnetic Fields on Formation Process of Colloid in the Synthesis of 4A Zeolites From Kaolin

用龙岩高岭土合成4A沸石，成胶过程采用磁力搅拌代替机械搅拌，高岭土的利用率可提高20%~30%；产品质量以钙交换能力计，平均达到298MgCACO3/g干沸石；粒径1μM.并就作用机制进行了探讨.In the Formation process of colloid For the synthesis of 4A zeolites From Longyan kaolin, the utilization rate of kaolin can be raised by 20%～30% by use of magnetic stirring instead of mechanical stirring.The calcium ion exchange capacity, on the average, reached 298 mg CaCO 3/g dry zeolites.The particles have about 1 μm in size.The mechanism of reaction is also discussed

Studies on Activation of Kaolin

以龙岩高岭土为原料，对活化方式进行了比较研究，考察了活化产物的抽提及转化为4沸石的效果。用dTA，Xrd与SEM等表征了样品；讨论了所得到的结果。The diFFerent activation ways of Longyan kaolin were studied.The eFFects of abstraction about activation products and their Further transForming into 4 zeolite were researched.DTA, XRD and SEM were used For characterization of samples.The results obtained From experiments were discussed