甲基磺酸盐在锡及锡基合金镀层中的应用现状

介绍了甲基磺酸(MSA)盐镀液体系的特点。分析了电镀锡及可焊性锡合金镀液的主要成分及特点,介绍了MSA体系在电镀锡钢板中的应用。对比了电镀无铅镀层和Sn–Pb合金镀层的性能,给出了电镀及化学镀锡及锡基合金的工艺配方及操作条件。     

气辅外门拉手用PC/PBT合金材料研究

介绍了动力锂离子电池对隔膜的性能要求,分析了现有的聚烯烃隔膜的特点及缺陷,并综述了目前各类型动力锂离子电池隔膜的研究成果,讨论了改性聚烯烃隔膜、改性无纺布隔膜及其他隔膜的特点及应用情况。另外,指出了安全性及均一性是动力锂离子电池隔膜的最基本要求及关键性能。     

国内外乙丙橡胶技术新进展

介绍了近年来国内外乙丙橡胶在新型催化剂开发、新工艺技术创新及优化、新产品开发、原料新来源及装备优化方面的研究及工业化应用最新进展,分析总结了新型催化剂、新工艺技术的特点、优势及应用情况,对新产品的制备方法、特性、功能及应用领域,新原料以及新装备的开发及优化进行了阐述,对乙丙橡胶技术开发及应用的发展方向提出了建议。     

聚氨酯合成革的生产与需求

本文概述了聚氨酯树脂及聚氨酯合成革的生产现状及展望,介绍了生产路线、工艺及设备;论述了辽化建厂的可能性及聚氨酯/聚氯乙烯复合革的发展方向,介绍了配方及工艺流程;并讨论了防止聚氯酯合成革龟裂的方法。     

铜及铜合金的化学抛光工艺改进

本文介绍了改进的铜及铜合金化学抛光工艺,简介了该工艺的流程,化学抛光液和脱膜液的配方及工艺条件,还分析了硝酸及过氧化氢浓度、乙醇及LC添加剂、抛光时间及搅拌速度等对该工艺的影响。     

现代有机及生物分析在生命科学医药学分析及检测方面的研究

简要介绍了现代有机分析的产生发展及应用,重点综述了现代有机及生物分析在生命科学及医药学分析中的应用;现代有机及生物分析在有机分析分离科学中的应用,并就现代有机及生物分析的发展前景进行了展望。     

块式制动器制动衬垫的研制与应用

本文概述了制动器制动衬垫的种类、性质及应用情况。其中重点阐述了本研制品ＣＴＨ－０３Ｓ的研制情况及应用概况，分析了磨擦机理及各种因素对摩擦性能的影响，对比了三种同类产品无石棉衬垫、石棉树脂衬垫及本研制品的性能及经济性。     

新型卟啉化合物的合成应用新进展

简要介绍了卟啉类化合物的结构特征、性质及应用;重点综述了新型卟啉化合物及金属配合物的合成及应用;新型卟啉衍生物的合成及选择性识别;新型卟啉衍生物的合成及在光学方面的应用。并对卟啉化学的发展进行了展望。     

软起动的介绍及应用

从软起动的定义着手,指出了电机直接起动的要求及危害,介绍了软起动的工作原理、控制方式及技术特点,结合软起动的应用条件,通过计算验证了起动过程电压下降满足设计规范的要求,阐述了软起动的调试及同步电机软起的起动过程。总结列出了常见故障现象及处理方法,最后从运行的角度分析了应用效果及注意事项。     

纳米技术、纳米材料及其在纺织工业上的应用

概述了纳米技术的起源及发展,介绍了纳米材料的结构及性质,对其在高分子复合材料及纺织工业上的应用进行了综述。     

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.     

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.     

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。     

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.     

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.     

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。     

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.     

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     

微生物法处理含硫工业废气

指出了含硫工业废气传统处理方法的缺陷 ,介绍了微生物处理方法的优势所在 ;对微生物菌种的共同特征以及无机硫和有机硫脱除时菌种的选择依据进行了讨论 ,并对微生物法脱硫的机理进行了分析 ;评述了国内外生物滤池法、生物滴滤池法和生物吸收法等生物膜法脱硫的工艺及其工业化应用。指出了微生物法脱硫技术有待深入研究的问题、发展趋势和应用前景。     

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.