回收PC脱碳闪蒸气及PSA脱碳逆放气装置运行总结

山东海化盛兴化工有限公司现有醇氨生产能力为120kt／a、尿素150kt／a，合成氨系统有两套脱碳装置，并联运行。1套为1．7MPa，50kt／a氨醇能力的碳酸丙烯酯（PC）脱碳装置；另1套为1．7MPa，70kt／a氨醇能力的变压吸附（PSA）脱碳装置。两套脱碳装置均有不同程度的放空气排入大气。     

对PET短纤维直接纺丝熔体输送工艺条件的探讨

根据ＨＶ系列年产１．５万ｔ涤纶短纤维的生产实践，结合传热和流体输送的有关理论，对连续聚合直接纺丝装置的熔体输送过程的熔体停留时间、熔体温度控制和熔体压力设定等方面进行了系统讨论，提出熔体在输送管道中的停留时间应根据温度和熔体特性决定；熔体温度可用静态混合器来调节；用输送过程的熔体热降解程度和熔体温度分布及变化作为评价熔体输送系统优劣的标准。     

Ф1000mm合成系统优化改造技术总结

0前言 青岛碱业股份有限公司现有生产能力为合成氨（醇）130kt／a，尿素160kt／a，精甲醇40kt／a，甲醛50kt／a，硬脂酸40kt／a，液体C0210kt／a，热电装机容量1．2万kW。2006年对合成氨系统进行了30kt／a的扩能改造，改造后合成氨（醇）生产装置能力为160kt／a，配套尿素生产装置能力为200kt／a。D1000mm合成系统优化改造是公司160kt／a合成氨填平补齐工程扩能改造的核心组成部分：     

河南建设熔体塔式造粒硝基复肥生产装置

河南洛阳骏马化工有限公司投资7743万元的150kt／a硝基复肥生产装置于日前动工兴建，计划在2008年建成投产。该项目采用上海化工研究院的熔体塔式造粒复肥生产技术.     

结晶硝铵装置扩产对策

南化公司氮肥厂的结晶硝铵装置于1960年投产，设计能力为80kt／a，经技术改造，现生产能力已达125kt／a，年用氨气约27．5kt、硝酸(折100％)99．5kt。随着我厂双加压法105kt／a(折100％)硝酸装置的建设、投产，结晶硝铵装置的扩产也迫在眉睫，本文就结晶硝铵装置扩产的瓶颈进行分析、探讨和评价，提出扩产的对策。     

河南建设熔体塔式造粒硝基复肥生产装置

河南洛阳骏马化工有限公司投资7742．64万元，其中企业自筹2322．79万元，国内银行贷款5419．85万元，于日前动工兴建150kt／a硝基复肥生产装置，计划在2008年建成投产。该项目采用上海化工研究院历时8a开发成功的世界一流的熔体塔式造粒复肥生产技术，具有产品质量高、运行费用低、能耗少、无污染、易于操作等特点，目前国内已有十几家企业采用该技术生产尿基复肥和硝基复肥。     

我国合成橡胶生产装置状况

目前，我国合成橡胶总生产能力为1222．3kt／a。聚丁二烯橡胶生产企业有7个，总生产能力为404．8kt／a，其中燕山石化公司、齐鲁石化公司、锦州石化公司、巴陵石化公司、高桥石化公司、大庆石化公司和独山子石化公司的聚丁二烯橡胶装置生产能力分别为120，25．8，50，30，96．50．33kt／a。     

河南建设熔体塔式造粒硝基复肥生产装置

河南洛阳骏马化工有限公司投资7742．64万元，其中企业自筹2322．79万元，国内银行贷款5419．85万元，于日前动工兴建150kt／a硝基复肥生产装置，计划在2008年建成投产。该项目采用上海化工研究院历时8年开发成功的世界一流的熔体塔式造粒复肥生产技术，具有产品质量高、运行费用低、能耗少、无污染、易于操作等特点，目前国内已有十几家企业采用该技术生产尿基复肥和硝基复肥。     

双氧水萃取塔的挖潜改造

介绍了2kt／a蒽醌法双氧水装置萃取塔的改造情况。改造后塔内物料返混现象消失,萃余液中双氧水含量低、夹带的水明显减少;工作液体积流量提高到25．5m^3／h,产量提高到7kt／a。     

河南建设熔体塔式造粒硝基复肥生产装置

河南洛阳骏马化工有限公司投资7742．64万元，其中企业自筹2322．79万元，国内银行贷款5419．85万元，于日前动工兴建150kt／a硝基复肥生产装置，计划在2G08年建成投产。该项目采用上海化工研究院历时8年开发成功的世界一流的熔体塔式造粒复肥生产技术，具有产品质量高、运行费用低、能耗少、无污染、易于操作等特点，目前国内已有十几家企业采用该技术生产尿基复肥和硝基复肥。     

Fe-C-N，Fe-C-V和Fe-C-V-N熔体活度相互作用系数

实验测定了1435℃温度下C和N在Fe-C-N和Fe-C-V-N熔体中的饱和溶解度. Fe-C-V熔体中C的饱和溶解度计算式为XC=0.2043+0.8365XV或-lnXC-9.683XC=-11.96XV-0.3916. C和N在Fe-C-V-N熔体中的饱和溶解度随V浓度增加而增加. 根据Fe-C熔体的热力学性质、Fe-C-N熔体中C和N之间的活度相互作用系数、C在Fe-C-V熔体中及C和N在Fe-C-N和Fe-C-V-N熔体中的饱和溶解度，通过严格的热力学推导和计算，获得了Fe-C-N熔体中C和N之间、Fe-C-V熔体中C和V之间及Fe-C-V-N熔体中V与N之间的活度相互作用系数：eCN=0.5016, eCV=-11.96, eCV=-0.2443和eVN=-0.2379.     

Estimation of reinforcement in compatibilized polypropylene nanocomposites by extensional rheology

Structural characterization in polymer nanocomposites is usually performed using X‐ray scattering and microscopic techniques, whereas the improvements in processing and mechanical properties are commonly investigated by rotational rheometry and tensile testing. However, all of these techniques are time consuming and require quite expensive scientific equipment. It has been shown that a fast and efficient way of estimating the level of reinforcement in polymer nanocomposites can be performed by melt extensional rheology, because it is possible to correlate the level of melt strength with mechanical properties, which reflect both the 3D network formed by the clay platelets/polymer chains as well as final molecular structure in the filled system. The physical network made of silicate filler and polymer matrix has been evaluated by X‐ray diffraction and transmission electron microscopy. Extensional rheometry and tensile testing have been used to measure efficiency of the compatibilizer amount in a polypropylene‐nanoclay system. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2009     

塑料熔体（质量,体积）流动速率及熔体密度的测定

介绍塑料熔体（质量、体积）流动速率,熔体密度的测定方法及熔体流动速率比、表观粘度的计算。     

热熔胶的分类与用途

本文以热熔胶的基料和热熔胶的形态出发将其归纳分类,述及用途。并提出热熔胶将从普通的粘接胶种向特种胶种发展.     

Effect of annealing time and molecular weight on melt memory of random ethylene 1‐butene copolymers

The effects of annealing time and molecular weight on the strong melt memory effect observed in random ethylene 1‐alkene copolymers are analyzed in a series of model ethylene 1‐butene copolymers with 2.2 mol% branches. Melt memory is associated with molten clusters of ethylene sequences from the initial crystals that remain in close proximity and are unable to diffuse quickly to the randomized melt state, thus increasing the recrystallization rate. Melt memory persists even for greater than 1000 min annealing indicating a long‐lived nature of the clusters that only fully dissolve at melt temperatures above a critical value (>160 °C). Below the critical melt temperature, molecular weight and annealing temperature have a strong influence on the slow kinetics of melt memory. For the copolymers analyzed, slow dissolution of clusters is experimentally observed only for M_w < 50 000 g mol^?1. More stable clusters that survive higher annealing temperatures display slower dissolution rates than clusters remaining at lower temperatures. The threshold crystallinity level to enable melt memory (X_c,threshold) decreases with increasing molecular weight and decreasing annealing temperature similarly to the variation of the chain diffusivity in the melt. The process leading to melt memory is thermally activated as the variation of X_c,threshold with temperature follows Arrhenius behavior with high activation energy (ca 108 kJ mol^?1) that is independent of molecular weight. © 2018 Society of Chemical Industry     

漫谈高硼玻璃的电熔

阐述了高硼玻璃的熔制特性,通过对窑内玻璃液流温度分布的分析,认为用全电熔窑熔化高硼玻璃比较理想,并提出了相关注意事项.     

聚丙烯接枝改性及其挤出发泡研究

采用过氧化二异丙苯（DCP）为引发剂，苯乙烯（St）为助引发剂，双螺杆挤出机为反应器，使甲基丙烯酸缩水甘油酯（GMA）接技到聚丙烯（PP）链上。通过FT-IR等测试方法对接枝PP的结构和性能进行了研究，结果表明在1727cm^-1处有较为明显的羰基吸收峰；抗熔垂能力的测定表明，接枝反应有效地改善了PP的熔体强度，从而得到适于挤出发泡的聚丙烯接枝改性优化配方：PP100份、GMA8份、DCP0．06份、St3．5份。     

国外湿固化聚氨酯热熔胶技术进展

叙述了湿固化聚氨酯热熔胶的主要特点和用途。通过大量专利文献的查阅,从预聚体、热塑性树脂、增粘剂、添加剂等几个方面论述了湿固化聚氨酯热熔胶的组成及国外在这些方面改进胶性能的技术进展。由文献得知,增加聚氨酸预聚体和热塑性树脂的结晶度,能提高该热熔胶的初粘力,带有羟基的热塑性树脂与低聚物多元醇一起与多异氰酸酯反应,可制得优质热熔胶。     

Effect of TiO2 addition on the properties of Ti3Si(Al)C2 based ceramics fabricated by reactive melt infiltration

In this paper, Ti₃Si(Al)C₂ based ceramics were fabricated by reactive melt infiltration (RMI) of TiC/TiO₂ preforms with liquid silicon. The microstructure, phase composition, and mechanical properties of the Ti₃Si(Al)C₂ based ceramics have been investigated to understand the effect of phase composition of the preforms on the formation mechanisms of Ti₃Si(Al)C₂. The preforms with different content of TiO₂ infiltrated at 1500 °C with liquid silicon for 1 h were composed of Ti₃Si(Al)C₂, Al₂O₃, TiC, TiSi_xAl_y and residual Al. The prior generated Al₂O₃ phases inhibited the dispersion of Ti₃Si(Al)C₂ phases, resulting in the drastically grain growth of Ti₃Si(Al)C₂. Subsequently, the microstructure with gradually increasing Ti₃Si(Al)C₂ grain size resulted in the decrease of the bending strength and fracture toughness of samples. When the content of TiO₂ reached 20 wt%, the bending strength reached the maximum, 326.6 MPa. The fracture toughness attained the maximum, 4.3 MPa m^1/2, when the content of TiO₂ was 10 wt%.