防止干燥塔塔顶及锥节产生焦粉的方法

描述及分析了干燥塔在生产乳粉过程中出现的塔顶及锥节焦粉现象，并提出了改进方法。     

气液传质及反应装置研究进展

在介绍了自常规塔设备到超重力设备，再到一种新型气液传质及反应设备——涡旋脉冲式反应器的发展过程的同时，重点介绍了涡旋脉冲式反应器的基本结构、技术特点及研究进展，指出了涡旋脉冲式反应器在气液传质过程及纳米粉体制备上的研究及应用前景。     

中和法与水热法制铁氧体粉末对比实验研究

中和法和水热法制备粉体是目前常用的制备超细粉体材料的方法。通过对这两种方法进行制备铁氧体粉末的对比实验研究发现，中和法和水热法制得的粉体在性能上存在一些差异。水热法制得的粉体比中和法制得的粉体具有更好的分散性能、更窄、更细小的粒径范围和更大的比表面积。     

自磨式冲击磨的研究与应用

介绍了自磨式冲击磨的原理及内置涡轮分级机的结构。理论与实际应用表明 :该机可运用于高硬度物料的加工 ,涡轮分级机的配置可获得严格粒度分布的微细产品。     

超细粉流化机理和团聚现象的探讨

在直径60mm的流化床中，以SiO2和TiO2超细粉为原料，考察了粉体物性、粉体填充状态和空气湿度等因素对超细粉流化行为和聚团性质的影响，结果表明：超细粉的流态化经历了活塞流、过渡区和聚团流化3个阶段；聚团的流化行为与大颗粒相似；初始填充状态对超细粉流化行为和聚团大小有重要影响，松填充有利于减小聚团尺寸和减少颗粒夹带，提高流化质量；并结合粉体层受力分析，对超细粉的流化机理和团聚现象进行了探讨。     

两段式煤气化技术在氟化氢反应转炉和烘粉炉上的应用

以发生炉煤气取代燃料油应用在氟化氢反应转炉及烘粉炉上 ,通过两段式煤气化技术可以降低氟化氢产品的生产成本 ,改善工作环境。介绍了煤气取代燃料油的可行性以及发生炉煤气站工艺方案的选择情况 ,建议在工业窖炉上大力推广 ,可以改变当前工业窖炉燃油成本高和燃煤对环境污染的状况。     

纯聚酯户外消光粉末涂料的制备

以高黏度、低酸值的含羧基饱和聚酯树脂为基料,以含有缩水甘油基的丙烯酸树脂为消光固化剂制备纯聚酯户外消光粉末涂料。介绍了该涂料的制备工艺,并讨论了原材料和生产条件对产品性能的影响。     

金属闪光外墙乳胶漆的研制及性能研究

以丙烯酸酯及有机硅单体为原料合成了核-壳型硅丙乳液,用自制分散剂将闪光铝粉分散成水性闪光铝粉浆,并成功分散于硅丙乳液中,加入进口助剂,配制成水性金属闪光外墙乳胶漆.讨论了基料的玻璃化温度、单体的加入方式、引发剂、乳化剂、反应温度、聚合工艺和pH等对乳胶漆性能的影响.     

Atmospheric Dependence on Dielectric Loss of 1/6Ba5Nb4O15· 5/6BaNb2O6 Ceramics

Samples of 1/6Ba₅Nb₄O₁₅·5/6BaNb₂O₆ along with the pure end members, Ba₅Nb₄O₁₅ and BaNb₂O₆, were sintered under low oxygen partial pressure. The degradation mechanisms of dielectric loss in this reducing atmosphere have been studied. We found that the degradation occurred primarily due to the formation of oxygen vacancies caused by the reduction of Nb⁵⁺. This was determined by measuring the electrical conductivity, and through X-ray photoelectron spectroscopy. More importantly, the dielectric loss of 1/6Ba₅Nb₄O₁₅·5/6BaNb₂O₆ samples with higher temperature stability was further decreased on sintering in a reducing atmosphere. This observation has been explained by considering the increased porosity and formation of a reduced second phase, Ba_0.65NbO₃.     

Thermal Response and Oxidation of Tyranno™-Fiber-Reinforced Si-Ti-C-O Matrix Composites for a Thermal Protection System in High-Enthalpy Dissociated Air

The thermal response and oxidation of Tyranno™ Lox-M fiber-reinforced Si-Ti-C-O matrix composites in high-enthalpy dissociated air was investigated in an arc jet facility (an arc wind tunnel). The maximum surface temperature reached 1310–1670°C. Catalytic recombination of oxygen and nitrogen on the composite surface under dissociated air was not significant. Surface recession was insignificant below 1600°C surface temperatures and above 5 kPa of oxygen partial pressure at the stagnation point. Passive-to-active oxidation transition of the composite agreed with Balat's theory for monolithic silicon carbide. A glass sealant prevented active oxidation of the composite for short-time exposures.