合成纤维原料：精对苯二甲酸、丙烯腈、己内酰胺、尼龙66盐等。
Raw materials of synthetic fibre: phthalic acid acrylonitrile caprolactam nylon66salt etc.
精对苯二甲酸是聚酯工业的原料，主要采用对二甲苯空气氧化法生产。
Purified terephthalic acid (PTA), produced mainly by the method of air oxidation of xylene, is a raw material for the polyester industry.
介绍精对苯二甲酸装置中常见的管道腐蚀特点和机理，选用材料和选材实例。
Introduces piping material corrosion characteristics and mechanism of PTA plant, how to select the piping materials and gives the examples of material selection.
精对苯二甲酸是聚酯工业的主要原料，目前主要采用对二甲苯空气氧化法生产。
Purified terephthalic acid, one of the main raw materials of polyester, is produced by p-xylene liquid phase oxidation.
研究了钴、锰对生产精对苯二甲酸(PTA)的废水处理中厌氧污泥活性的影响。
The Effects of cobalt and manganese on the activity of anaerobic sludge in the treatment of waste water from the production of purified terephthalic acid (PTA) were studied.
该方法快速简便，具有良好的精密度和准确度，适用于进出口精对苯二甲酸的日常检验。
The method was simple and rapid with satisfactory precision and was suitable for daily inspection of imported and exported PTA.
通过对PTA(精对苯二甲酸)装置影响醋酸消耗的分析，认为反应温度对酸耗影响最大。
Reaction temperature as major factor on consumption of acetic acid was found by analysis of operation of PTA unit.
主要介绍利用PLC(可编程控制器)，实现PTA(精对苯二甲酸)包装系统的程序控制。
The paper introduces mainly the implementation of the program control in PTA Bagging System by using PLC.
为使精对苯二甲酸装置达到设计能力，对离心机径向轴承材质进行了改进，满足了工艺要求。
The materials of radial sliding bearing of centrifuge areimproved to make the treat capacity attain the design goal fortereththalic acid unit. And then the process requirements are satisfied.
介绍了精对苯二甲酸国外市场情况，对国内精对苯二甲酸的生产、进出口和消费做了分析和预测。
The present world market of pure terephthalic acid is reviewed. An analysis and projection on the production, import and export, and consumption of China's pure terephthalic acid are given.
阐述了精对苯二甲酸产品中对甲基苯甲酸的产生与分离原理，分析了影响对甲基苯甲酸含量的主要因素；
The generation and separation principle of PT acid in PTA products is elaborated, and the main impact factors for PT acid content are also analyzed.
简要介绍了精对苯二甲酸（PTA）生产过程中，外排至污水厂活性污泥处理池中形成的污泥废料的性状。
The properties of purified terephthalic acid(PTA)waste mud in the process of PTA sewage tank were intro- duced briefly.
研究结果表明，优化回归得到的精对苯二甲酸结晶动力学方程能够较好地模拟PTA连续多级降压蒸发结晶过程。
The results show that the PTA crystallization kinetics parameters using optimization and regression can be utilized preferably to the modeling of purified terephthalic acid multistage crystallizer.
运用ABC管理法控制精对苯二甲酸(PTA)装置的污水产生量，降低PT A污水单排，减少污水处理费用。
This article introduced the application of ABC management method to control the sewage production in PTA units and the sewage discharge, and to reduce the treatment cost.
基于精对苯二甲酸(PTA)装置中钛材换热器的实际设计范例，论述了钛材的选用原则及钛材换热器的结构设计。
The selection principle of titanium and the structure design of titanium heat exchanger are expounded based on the actual design example of titanium heat exchanger in PTA unit.
介绍了PTA（精对苯二甲酸）的生产工艺和技术进展，分析了国内外PTA的市场供需，并预测了消费的发展趋势。
The paper introduced PTA production process and its technology progress. It also analyzed current situation of PTA production, market and future development at home and abroad.
分析了中国石油化工股份有限公司天津分公司精对苯二甲酸（PTA）装置先后采用的两批国产钯碳催化剂使用状况。
The operation condition of indigenous palladium-carbon catalyst was analyzed, two batches of the catalysts used in purified terephthalic acid(PTA) unit sequentially.
介绍了世界乙二醇、精对苯二甲酸、 聚对苯二甲酸乙二酯及其纤维、瓶用树脂等聚酯产业链的生产新动向和需求预测。
The article gives an account of the new production trends and demand forecast of the world's PET industry chain in EG, PTA, PET and its fiber and bottle grade resin.
通过对聚对苯二甲酸乙二醇酯(PET)生产的分析，论述了当使用外购精对苯二甲酸(PTA)时，酯化工艺的调整及效果。
By analysis of the production of polyethylene terephthalate (PET), the adjustment and effect of esterification process using purified terephthalic acid (PTA) purchased outside were discussed.
通过对聚对苯二甲酸乙二醇酯(PET)生产的分析，论述了当使用外购精对苯二甲酸(PTA)时，酯化工艺的调整及效果。
By analysis of the production of polyethylene terephthalate (PET), the adjustment and effect of esterification process using purified terephthalic acid (PTA) purchased outside were discussed.
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