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- terephthalic acid purification 对苯二甲酸精制
- We are very eager to buy 100 kg terephthalic acid. 我们非常急于购买100公斤对苯二甲酸。
- The physical properties of activated carbons used for carrier of palladium/carbon (Pd/C) catalyst for purification of terephthalic acid were analyzed. 分析了不同厂家生产的对苯二甲酸精制用钯炭催化剂载体活性炭的各种物性指标。
- Abstract： Objective To study the cytotoxicity of Terephthalic acid(TPA). 摘 要： 目的探讨对苯二甲酸的细胞毒性。
- Purified terephthalic acid (PTA), produced mainly by the method of air oxidation of xylene, is a raw material for the polyester industry. 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。
- The working process of resin bed and working principle of acid purification unit and flowchart are described particularly. 详细介绍了树脂床工作过程和酸净化装置的工作原理及工艺流程,对酸净化装置投入前后的酸耗量做了对比。
- Terephthalic acid is a common organic pollutant which is poisonous and toxic to organism to some extent. 对苯二甲酸是常见的、对生物具有一定毒害性的有机污染物。
- The kinetics of p-xylene oxidation to terephthalic acid was experimentally determined. 实验测定了对二甲苯高温氧化各步反应动力学数据。
- The device adopts fluosolids roasting, heat energy recovery through middle-pressure waste-heat boiler, acid purification, (3+2) transfer, and twice absorption process. 本装置采用沸腾焙烧、中压余热锅炉回收高温位热能、酸洗净化、（3+2）两次转化、两次吸收的工艺流程。
- 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。
- It is testified that the depolymerized products are terephthalic acid(TPA), ethylene glycol(EG) and trace diethylene glycol(DEG). 解聚产物为对苯二甲酸(TPA)、乙二醇(EG)和少量的二甘醇(DEG)。
- The quality and quantity of purified terephthalic acid(PTA)wastewater and its treatment situation in China mainland are presented. 介绍了PTA废水的水质、水量特点和国内PTA生产企业废水处理现状;
- Paraxylene is a petrochemical used to make purified terephthalic acid, a raw material for producing polyester film, packaging resin and fabrics. 二甲苯是一种石化产品，用来制造精对苯二甲酸，原料生产聚酯薄膜，包装树脂和织物。
- Modified Co-PET is synthesized from purified terephthalic acid(PTA),ethylene glycol(EG) and 1,4-cyclohexanedimethanol(CHDM). 由对苯二甲酸(PTA)、乙二醇(EG)和1,4-环己二甲醇(CHDM)三种单体共聚而成的新型共聚酯的热性能与结晶性能受结构影响会发生较大变化。
- A standing and layering process for the regenerated acid purification is described. The treating agent ANPA is added in regenerated acid and stood after agitation to purify it through layering. 介绍了净化再生酸的静置分层法 ,将处理剂 ANPA加入再生酸中，搅拌后静置，使再生酸分层分离而得到净化。
- ICP-AES was applied to the determination of chromium,cobalt,iron,manganese,molybdenum,nickel and titanium simultaneously in purified terephthalic acid. 研究用ICP-AES法同时测定工业用精对苯二甲酸中铬、钴、铁、锰、钼、镍、钛等金属元素。
- A standing and layering process for the regenerated acid purification is described.The treating agent ANPA is added in regenerated acid and stood after agitation to purify it through layering. 介绍了净化再生酸的静置分层法,将处理剂ANPA加入再生酸中，搅拌后静置，使再生酸分层分离而得到净化。
- A computer code for simulating continuously stirred gas-liquid reactors of p-xylene oxidation to terephthalic acid was developed. 摘要建立了一个用于模拟对二甲苯氧化制对苯二甲酸过程的连续气液搅拌釜反应器模型。
- We define the best technical conditions by the experiment.And find the notability and trend of the factors to the capability of terephthalic acid. 通过正交试验确定了回收对苯二甲酸的最佳工艺条件，并得出各影响因素对回收的对苯二甲酸的保水率、比阻、灰分、酸值性能指标的影响显著性和影响趋势。
- 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。
