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- 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。
- 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 paper reviews FCC enrichment regeneration technology, CLAUS enrichment sulphur recovery process and the enrichment technology used in terephthalic acid (TPA) equipment. 综述了催化裂化富氧再生技术、富氧克劳斯硫磺回收工艺和TPA装置富氧工艺。
- Objective To research for the joint actions and mechanisms of terephthalic acid (TPA), ethylene glycol (EG) and (or) dowtherm A (DOW) by which kidney damage in rats was induced. 目的 研究对苯二甲酸 (TPA)、乙二醇 (EG)、联苯 -联苯醚 (DOW )联合作用对大鼠肾脏的损伤及其损伤机制。
- 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。
- 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。
- The influence of process conditions on the formation of ether linkage or diethylene glycol(DEG)formed during the direct esterifica tion of terephthalic acid(TPA)in batch is studied. 本文研究了对苯二甲酸(PTA)间歇式直接酯化法酯化阶段工艺条件对醚键或二甘醇(DEG)生成的影响。
- Preparation of PBO was carried out by polymerization of salts that contained 4,6-diamino resorcinol dihydrochloride(DAR) and terephthalic acid(TPA) in polyphosphoric acid(PPA) and P2O5. 以4,6-二氨基间苯二酚盐酸盐(DAR)和对苯二甲酸(TPA)制成复合盐,再以多聚磷酸为溶剂,添加五氧化二磷,制备出PBO聚合物。
- 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。
- Polyethylene terephthalate (PET) is hydrolyzed to terephthalate acid(TPA) and ethylene glycol(EG) under microwave irradiation in neutral water. 研究了微波作用下聚对苯二甲酸乙二醇酯(PET)的水解解聚为单体对苯二甲酸(TPA)和乙二醇(EG)的反应。
- 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 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。
- 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 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。
- 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。
- 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。