塔填料的研究现状及发展趋势

介绍了散堆填料的发展过程，分析了通过改变散堆填料的几何结构以改变填料性能的方法；并对规整填料的发展、现状作了综述性的介绍，阐述了提高规整填料传质效率的途径；简单分析了今后填料塔的发展方向。     

常减压下几种规整填料精馏特性的研究

对丝网BX、陶瓷BY、不锈钢板波纹填料及环矩鞍填料的传质性能和流体力学性能进行了测定,得到了三种规整填料全回流条件下较为简明的压降关联式,探讨了一些因素对各型填料精馏特性的影响。     

现代填料塔技术（一）：塔填料的发展和选择

主要从结构特点分析了塔填料的发展概况，介绍了新型散装和规整塔填料的特点以及塔填料的选择方法。     

规整填料塔在甲醇精馏中的应用

主要阐述了高效规整填料塔在甲醇精馏装置中的应用，通过与其它塔型的比较，评价了其使用效果。     

填料类型对脉冲填料萃取塔性能的影响

采用３０％ＴＢＰ（煤油）／ＨＡｃ／水体系研究了脉冲填料萃取塔的流体动力学和传质特性,考察了脉冲强度和填普类型对塔性能的影响。实验表明装填ＱＨ－１型扁环的脉冲填料 性能明显优于装填陶瓷和不锈钢拉西环的脉冲塔。文中给出了装填ＱＨ－１型扁环的脉冲填普塔的特性速度和Ｈｏｘｐ的经验计算式。     

高效散装填料的新构型——Impac填料性能分析

介绍了Ｉｍｐａｃ散装填料的结构特点和性能，并进行冷模实验。结果表明Ｉｍｐａｃ具有优良的流体力学和传质的综合性能。尤其适用于精密分离过程，热敏物系以及对旧塔的增容和节能改造。     

国外高效填料及其应用

介绍了国外各种高效散装填料和规整填料的性能及其应用,并简述了国内外应用甚广的蒸馏塔,尤其是其中的各种高效填料塔近年来的技术进展。     

现代填料塔分离技术进展与应用

填料塔将逐步取代板式塔。本文对塔填料应用在几种产品的分离上进行了叙述。并介绍了国外各种散堆填料和规整填料的品种和规格。     

塔填料在化工中的应用和发展趋势

本文介绍了塔填料发展及其在化工中的应用,重点介绍了填料塔发展的主要原因,并与板式塔进行了各方面的比较,提出了填料塔可逐渐取代板式塔的发展趋势。     

格栅填料压降与流场的CFD分析

以金属格栅填料作为研究对象,针对4种不同长宽比的格栅填料,利用CFD模拟了其在5种不同流速下的干塔压降和流场分布,分析了填料内的回流现象以及当改变填料结构尺寸时与压降变化的关系。     

THE ITALIAN MAJOLICA PROCESS AND PAINTING OVER TIN ENAMELS1

Reference is made to historical types. Practical conditions are discussed, types of glazes are given, and methods of application are outlined. There are also comments in connection with one-fire products. The processes involved are discussions A-3 and A-4: “The Italian Majolica Process,”“Painting over Tin Enamels,” are so closely related that they are taken together.     

稠油石化污水有机污染物分布特征研究

采用Gc-MS分析方法,研究了稠油石化污水中有机物分布特征,分析结果表明,稠油石化污水中有机物以烷烃、酚类和有机酸为主并含有一定量的PAHs,污水中有机物分子量140以下的以酚类为主,分子量在140以上的有机物多为烷烃和PAHs,其中烷烃类主要为分子量在200～350的饱和烷烃为主,PAHs以含不同数量甲基取代基的萘为主.     

Use or disposal of by-products and spent material from the vegetable oil processing industry in the U.S.

During processing of vegetable oils, certain by-products and waste materials are generated. Where and how the by-products are recovered and used and how the solid wastes are handled and disposed of are considered. Several suggestions for the future are explored.     

Donors for Organic Metals: Molecular Aspects

Physicochemical issues are discussed which are relevant to chemists interested in the synthesis of unknown compounds to serve as precursors to organic metals. Molecular topics are emphasized, physical and structural concepts which motivate synthetic activity in chalogen chemistry are presented, and new results in selenium and tellurium systems are summarized. Two model representations for donor molecular structures based on polyenes and polyacenes are presented and known examples are discussed. Quantitative correlations between gas phase vertical ionization potential and solution electrochemical redox potential are examined using donors of interest for organic metals as data. Limitations of such correlations and consequences of these shortcomings are given. Finally, possible future directions for several of these topics are posed.     

国内外染料工业发展新动向

本文阐述了国内外染料工业发展的新动向,指出了国外染料市场趋势和发展新特点:染料企业重组已趋平稳和进一步确立我国作为世界染料生产和供应中心的地位,在国际上设置"技术壁垒"和"贸易壁垒"的力度进一步加强,新染料的开发放到比较重要的地位,不断适应纺织工业新的着色要求;还指出了我国染料工业的发展新特点:市场活跃新品不断,出口增长,连创新高,新兴基地,发展壮大。注重染料质的提高,采用新技术和清洁工艺生产是我国染料工业发展的重中之重。有7篇参考文献。     

Solvent Extraction,Membranes, and Ion Exchange in Hydrometallurgical Dilute Metals Separation

Abstract

The separation methods which are used in the hydro-metallurgical field are reviewed and compared. Some processes in solvent extraction in use for recovery of crucial metals which are important to the U.S. defense and economy are presented. Various commercial extractants are reviewed and categorized. Other methods such as liquid membranes and ion exchange resins used for dilute metal ions separation are summarized. These methods are compared with solvent extraction. Problems to overcome in the further development of these separation methods are also identified and discussed in this paper.     

减轻环境压力利用粉煤灰生产肥料

介绍粉煤灰的基本性质,总结目前各种粉煤灰肥料的特点和生产方法,对生产、作用机理进行分析,简单论述粉煤灰肥料的应用方法,并提出应注意的问题.     

Heating value of biomass and biomass pyrolysis products

Studies conducted on the heating value of various types of biomass components and their pyrolysis products such as char, liquids and gases are presented. Heating values of chars are comparable with those of lignite and coke; heating values of liquids are comparable with those of oxygenated fuels such as methanol and ethanol, which are much lower than those of petroleum fuels. Heating values of gases are comparable with those of producer gas or coal gas and are much lower than that of natural gas. It is also found that the heating values of products are functions of the initial composition of biomass; correlations are developed to express these. Also, correlations are developed which explain the influence of ash elements on heating values of the pyrolysis products and on percentage distribution of energy in the products.     

丁二烯萃取装置聚合物产生原因分析及对策

丁二烯抽提装置因其萃取溶剂二甲基甲酰胺及丁二烯本身的特性 ,在运行过程中易产生各类聚合物 ,堵塞设备、管线、阀门等 ,制约装置的运行负荷和周期。从理论上分析了装置中各类聚合物的特性及危害 ,总结聚合物产生的原因 ,结合生产实际 ,提出了相应的对策     

流化床造粒的研究进展

简述了流化床造粒的主要方法，阐述了造粒的机理主要是团聚和涂布两种过程，总结了影响造粒的因素和研究造粒过程中提高团聚效率的方法，并对流化床今后的研究方向进行了展望。