浅谈化工建设项目竣工预验收程序和内容

结合作者的实际工作 ,总结了对工程建设实施“三道质量控制工序”的经验 ,强调了过程质量控制的重要性 ,较为系统地介绍了化工建设项目预验收工作的程序和内容     

3种高电流密度离子膜电解槽的性能对比与介绍

目前离子膜电解槽的发展方向为复极、自然循环、高电流密度、低电耗，伍德诺拉公司BM2．7-Ⅲ型槽、美国西方化学公司ExL^B-65槽、日本氯工程公司BiTAC-858槽即具有这些先进性能。对这3种槽进行了介绍与对比。     

过磷酸钙折流混合器的改进

由于绿原化工有限公司过磷酸钙装置生产能力由 6 70 t/ d(实物量 )提高到 84 0 t/ d,折流混合器负荷增大 ,出现折流环磨损加快等问题。采用若干技改措施 :扩大折流环内径、改变折流混合器喷射方向、采用新材料制作折流环 ,使折流混合器能满足 84 0 t/ d过磷酸钙生产的需要     

有限元方法在离心机转鼓强度分析中的应用

在回顾以往转鼓强度分析的基础上 ,指出了目前转鼓有限元应力分析所存在的问题 ,给出了提高计算精度和保证模拟有效性的注意事项 ,并探讨了转鼓强度评定准则     

Packed-microtubes model for flowthrough chromatography of protein

A mathematical model for flowthrough (perfusion) chromatography, namely packed-microtubes (PMT) model, has been proposed for a column packed with biporous (BiP) anion exchanger in which the mesopores and flowthrough pores are created with liquid and solid porogens, respectively. The model is established based on the assumption that the BiP particle is made up of packed microtubes. Bovine serum albumin (BSA) is used as a model protein and three kinds of anion exchangers (i.e., mesoporous, macroporous and BiP resins) are used as adsorbents to determine the model parameters and to evaluate the model. Adsorption equilibrium and finite bath experiments are performed to determine the adsorption isotherms and kinetics parameters. Both the bound amounts of the protein on the surface of the mesopores and macropores are experimentally determined and taken into account in the mathematical model. With all the model parameters determined by independent experiments or calculated from available correlations, model simulations are performed and compared with the experimentally determined breakthrough profiles of the BiP column. It is found that the model predictions agree reasonably well with the experimental data obtained under various conditions and the PMT model fit experimental data better than the modified double linear driving force (LLDF) model proposed by Leitão and Rodriogues (1999. Biochemical Engineering Journal 3, 131) in which the adsorbent particle is considered to be made up of packed microparticles. The results indicate that the PMT model is more reasonable for this kind of BiP adsorbent.     

充油S-SBR加工行为的研究

在中试装置上合成相对分子质量分布较宽的充油S-SBR，考察不同环烷油和芳烃油填充量的充油S-SBR的流变性能和混炼行为。结果表明，增大油的填充量能提高充油S-SBR的流动性能，充芳烃油S-SBR相对于充环烷油的S-SBR对温度更敏感，宽相对分子质量分布的充环烷油S-SBR的混炼性能优于S-SBR1204及E-SBRl778，竟相对分子质量分布的充芳烃油S-SBR的混炼性能优于S-SBR1204，Solprene380和E-SBR1712。     

Security concepts for the dynamics of autonomous vehicle networks

The secure operation of autonomous vehicle networks in the presence of adversarial observation is examined, in the context of a canonical double-integrator-network (DIN) model. Specifically, we study the ability of a sentient adversary to estimate the full network’s state, from noisy local measurements of vehicle motions. Algebraic, spectral, and graphical characterizations are provided, which indicate the critical role of the inter-vehicle communication topology and control scheme in achieving security.     

热熔凝聚法加工农药悬浮剂研究

介绍了采用热熔凝聚法对加工二氯喹磷酸、氟虫睛、乙霉威悬浮剂的试验结果，并测定了制剂的粒度分布、冷贮、热贮稳定性等理化性质。该法工艺简单、加工方便、节省能源、工业上切实可行。     

相转移催化法合成多聚乙二醇二环氧甘油醚

以多聚乙二醇和环氧氯丙烷为原料合成了多聚乙二醇二环氧甘油醚。NaOH为催化剂,季铵盐为相转移催化剂。结论为:作为催化剂NaOH固体效果优于NaOH溶液;四正丁基硫酸氢铵(TBAS)催化醚化反应效果最佳,GC监测表明,二醚的选择性达98％以上;n(多聚乙二醇):n(环氧氯丙烷):n(NaOH):n(TBAS)= 1:10:7:0．08;反应温度55-60℃;反应时间1．5 h;产率83％。     

钢筋阻锈剂在工业厂房中的应用

介绍了钢筋阻锈剂的基本性能、使用范围和方法。