沸石滤池的净水作用

利用沸石的过滤吸附作用与石英砂进行对比试验 ,试验表明 ,粒径为 0 .8～ 1 .2mm的天然沸石对水中浊度、有机物、苯酚及氨氮的去除效果均好于同粒径石英砂 ,且水头损失小 ,运行周期长 ,是一种经济可行的水处理滤料。     

单釜合成四羰基钴盐和苯丙酮酸盐

在１００Ｌ的反应釜中，加入醇－水石灰乳、硫代硫酸钠、氯化钴和通入ＣＯ气体制备四羰基钴盐，接着在同一反应器中催化氯苄的双羰基化反应，合成苯丙酮酸盐。省去制备催化剂的高压反应釜及其复杂的贮运设备     

乙苯,苯乙烯的生产及合成乙苯,苯乙烯催化剂的研究进展

苯乙烯是重要的石油化工原料。本文介绍了国内外苯乙烯生产的发展概况，合成乙苯，苯乙烯所用的催化剂种类，并就苯乙烯生产及催化剂的发展趋势提出了自己的观点。     

生物膜载体吸附剂对Zn2+的吸附

本文对生物膜吸附Zn^2＋的行为进行了准一级动力学方程和Elovich模型方程的拟合，对实验测定的吸附等温线用Langmuir与Freundlich吸附模型进行拟合；考察了pH值及温度对生物膜吸附Zn^2＋的影响。结果表明，Zn^2＋在生物膜载体吸附剂上的吸附动力学过程与Elovich方程有较好的拟合度，R^2=0．99994。单一等温吸附过程与Langmuir方程具有较好的拟合度，R^2=0．99785；pH=6～8，室温25℃对Zn^2＋分有较高的去除率。     

聚合物系的挥发分脱除——起泡脱挥机理及模型

聚合物系的挥发分脱除(以下简称脱挥)是聚合物生产中的关键工艺之一。本文对国外有关聚合物系脱挥领域的文献作了综述,介绍了聚合物脱挥的基本概念,重点描述了起泡脱挥传质中气泡的成核、生长、破裂,气泡合并、凝聚的机理以及它们的表达式,并介绍了几种起泡脱挥的模型。     

Synthesis and characterization of novel sulfonated poly(arylene ether ketone)s derived from 4,4'-sulfonyldiphenol

Summary Novel sulfonated poly(arylene ether ketone)s were prepared directly by aromatic nucleophilic polycondensation of 4,4'-sulfonyldiphenol with various ratios of 4,4'-difluorobenzophenone to 5,5'-carbonylbis(2-fluorobenzenesulfonate) in dimethyl sulfoxide. The resulting polyelectrolytes were characterized by IR, NMR, TGA and DSC. The 10% weight loss temperature of the products is higher than 510°C, and their glass transition temperature is above 260°C. The introduction of 4,4'-sulfonyldiphenol with powerful electron-withdrawing group, -SO₂₋, into the main chain of sulfonated poly(arylene ether ketone)s improves the thermal stability against desulfonation. The ion-exchange capacity and swelling of the polyelectrolyte membranes were measured, which are higher than 1.23meq/g and not higher than 20.9%, respectively. The membranes show very good perspectives in polymer electrolyte fuel cell (PEMFC) application. Received: 27 March 2002 / Revised version: 7 May 2002 / Accepted: 13 May 2002     

5万t/a离子膜电解装置建设总结

介绍了5万t／a离子膜电解装置的工程建设及试车情况。     

Rheological analysis of vapor‐grown carbon nanofiber‐reinforced polyethylene composites

The melt rheological analysis of high‐density polyethylene reinforced with vapor‐grown carbon nanofibers (VGCNFs) was performed on an oscillatory rheometer. The influence of frequency, temperature, and nanofiber concentration (up to 30 wt %) on the rheological properties of composites was investigated. Specifically, the viscosity increase is accompanied by an increase in the elastic melt properties, represented by the storage modulus G′, which is much higher than the increase in the loss modulus G″. The composites and pure PE exhibit a typical shear thinning behavior as complex viscosity decreases rapidly with the increase of shearing frequency. The shear thinning behavior is much more pronounced for the composites with high fiber concentration. The rheological threshold value for this system was found to be around 10 wt % of VGCNF. The damping factor was reduced significantly by the inclusion of nanofibers into the matrix. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 155–162, 2004     

Kinetics of thermo-fixation of solvent dyes and pigments in polyester fibres

The diffusion coefficient of a dye in fibres is critical to understanding the dyeing process and coloration quality of products. In this paper, the diffusion kinetics of solvent dyes in the thermosol dyeing of polyester fibres was studied by measuring K / S of the dyed polyester fabrics based on the Kubelka–Munk equation. The diffusion coefficients of two model solvent dyes were estimated with Hill's equation using the experimentally measured K / S values and were found to be in good agreement with those calculated from the traditional extraction method. Such a measurement method was applied to several other solvent dyes and pigments that have different molecular sizes and a good correlation between the measured diffusion coefficients and sizes of these dyes and pigments was found. The results indicate that it is feasible to use K / S measurement of dyed fabrics and Hill's equation to evaluate the kinetics of the thermosol dyeing process under certain conditions.     

国产MB-86催化剂使用情况分析

抚顺引进的５００００ｔ／ｙ丙烯腈装置要改造到７００００ｔ／ｙ的生产能力，其中更换国产催化剂ＭＢ－８６是较为关键的一步，文章对此进行了总结与分析。