terephthalic
对苯二甲酸
2025-11-01 20:53 浏览次数 11
对苯二甲酸
1. a p-dicarboxylic acid C8H6O4 that is obtained especially by oxidation of xylene and is used chiefly in the synthesis of polyesters
crude terephthalic acid粗对苯二甲酸
Terephthalic dihydrazide对二苯甲酸二肼
Terephthalic aicd苯二甲酸
Terephthalic acidCAS对苯二甲酸
Terephthalic dihydrazideCAS对二苯甲酸二肼
terephthalic acid[有化] 对苯二甲酸
Pure Terephthalic Acid精对苯二甲酸
terephthalic aldehyde翻译
This paper discusses the research progress on the toxicity of terephthalic acid to different organisms at various life levels.
本文主要阐述了对苯二甲酸在各级生物水平上对不同生命体的毒性研究进展。
From economical and environmental points of view, the development of a new oxidation system, which overcomes these disadvantages for the production of terephthalic acid, is desired.
从经济和环境的角度来看,都需要开发一种新的氧化体系来克服对苯二甲酸生产工艺的缺点。
Objective To explore the changes in urine levels of ions in workers exposed to terephthalic acid(TPA).
探讨对苯二甲酸(TPA)作业人群尿液离子水平的变化。
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.
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。
So this paper also introduced its microbial production-method. Combining with existing technique, the prospect of producing terephthalic acid with microbial methods was put forward.
介绍了对苯二甲酸的酶法生产,并结合现有技术,提出利用腈水解酶生产对苯二甲酸的展望。
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。
Serum angiotensin converting enzyme(SACE)was analyzed in 209 workers exposed to terephthalic acid(TPA)and 107 control workers.
对209名TPA作业工人和107名对照工人的血清血管紧张素转换酶(SACE)水平进行分析。
Purified terephthalic acid, one of the main raw materials of polyester, is produced by p-xylene liquid phase oxidation.
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。
The operation condition of indigenous palladium-carbon catalyst was analyzed, two batches of the catalysts used in purified terephthalic acid(PTA) unit sequentially.
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。
Partially substituting for ethylene glycol (EG), 1, 4-cyclohexanedimethanol (CHDM) was copolymerized with terephthalic acid (PTA) to produce copolyesters (PETG).
以1,4 -环己烷二甲醇(CHDM)部分替代乙二醇(EG)与对苯二甲酸(PTA)共聚合成共聚酯(PETG)。
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.
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。
It is oxidized to form terephthalic acid for polyester resins and fibers.
它可氧化生成对苯二甲酸用于生产聚酯树脂和纤维。
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.
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 key to the question of making the Chemical Fiber Plant meet the environmental protection target is to treat the effluent from terephthalic acid and polyester equipment.
对苯二甲酸和聚酯装置废水的处理是制约化纤厂环保达标的关键。
PETP terephthalic acid ethyl ester together two hard, good stiffness, strength, toughness, and have high small friction coefficient, high dimension stability.
PETP聚对苯二甲酸乙二酯坚硬,刚度好,强度高,有韧性,摩擦系数小,尺寸稳定性高。
Objective To study injury of liver and kidney among the workers exposed to terephthalic acid(TPA), ethylene glycol(EG) and(or) dowtherm A(DOW), and research for early biological monitoring indexes.
目的研究对苯二甲酸(TPA)、乙二醇(EG)、联苯-联苯醚(DOW )对职业人群肝肾损伤的影响,寻找作业工人健康监护的早期指标。
This paper reports a novel, simple, rapid and accurate method for determination of 4-CBA and p-TOL in purified terephthalic acid by capillary electrophoresis.
报道了利用毛细管电泳技术检测精制对苯二甲酸中的主要杂质4-羧基苯甲醛和对甲苯甲酸的方法。
Separation process of terephthalic acid (TA) from colored alkali reduction wastewater by acidation was studied and TA was simply refined through pretreatment.
文章研究了酸析法从带色堿减量废水中回收对苯二甲酸(TA)过程,并且通过废水预处理进行TA的简单精制。
As a member of the terephthalic polyester family and a new textile material, PTT has good elasticity and other properties, which makes it has wide applying foreground.
聚酯新品种PTT作为一种新型的纺织材料,具有优良的弹性及其它性能,应用前景很好。
Propyleneglycol, polymer with terephthalic acid, fumaric acid and 2,2-dimethyl-1,3-propanediol.
丙二醇与对苯二甲酸、反丁烯二酸和2,2-二甲基-1,3-丙二醇的聚合物。
Objective To study the changes of urinary ions and enzymes in workers exposed to terephthalic acid(TPA).
目的探讨对苯二甲酸(TPA) 作业人群尿酶和尿液离子水平的变化。
The total concentrations of terephthalic acid and phthalic acid were higher in summer and winter, but lower in spring and autumn.
对苯二甲酸和邻苯二甲酸的质量浓度之和在夏、冬季较高,春、秋季较低。
The Rheological property of self - prepared PET synthesized with medium - purity terephthalic acid was studied with capillary rheometer.
采用毛细管流变仪研究了自制的用中纯度对苯二甲酸( MTA)合成的聚对苯二甲酸乙二醇酯(PET)流变性能。
For resolving the lack of solubility data terephthalic acid in aqueous acetic acid, a method of determining the solubility at high temperature was developed.
针对对苯二甲酸工业中的溶解度基础数据缺乏的问题,提出了一种测定高温下对苯二甲酸在醋酸水溶液中的溶解度的方法。
The properties of purified terephthalic acid(PTA)waste mud in the process of PTA sewage tank were intro- duced briefly.
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。