对苯二甲酸

The solubility of terephthalic acid in aqueous acetic acid was experimentally determined at 423.15~503.15 K and at the weight percent of the acetic acid of 60%, 70%,80%, 90% and 100% by using this method.

用该法测定了423.15~503.15K下对苯二甲酸在醋酸质量分数为60%、70%、80%、90%和100%的醋酸水溶液中的溶解度。

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。

Keywords terephthalic acid;density functional theory;electronic structure;density of states

对苯二甲酸；密度泛函理论；电子结构；态密度

For example, about 30 million tons of terephthalic acids are produced annually by oxidation of p-xylene with air.

以对二甲苯催化氧化制备对苯二甲酸为例，全球年产量超过3000万吨。

This dissertation consists of two different parts,Part one: Plasma degradation of dye by a nonpulsed direct current glow discharge in an Aqueous Solution;Part two : the synthesis of terephthalic.

本论文的研究分为两部分，第一部分是非脉冲直流辉光放电等离子体降解水中染料的研究，第二部分是对苯二甲酸的新合成路线研究。

In the second part, we discuss the mechanism and factors of deposit-tion forming. The factors are temperature, rate of titrating the sulphurc acid, rate of stiring, consistency of sulphuric acid and consistency of sodium hydroxide.

接下来本文探讨了沉淀的形成机理和沉淀形成时影响沉淀纯度的因素，并确定了碱减量废水中回收对苯二甲酸的影响因素为温度、加酸速度、搅拌、加入的酸浓度、废水的碱度。

The extraction-crystallization method was used to recover cobalt and manganese acetates from the waste catalyst in the PTA production process .

以对苯二甲酸生产装置中排放的废催化剂为原料，采用萃取—结晶法回收其中的醋酸钴和醋酸锰。

It should be emphasized that the domestic PTA process design fully adopted the mature industrial technology, in which the structure similar to bobble tower oxidation reactor has been being successfully operated for many years in the industry and has undergone industrial experiments and inspections under various conditions in the process of advancement; the tail gas treatment unit has absorbed Mitsubishi chemical's technologies and the paste treatment unit Amoco's technologies.

需要强调的是，国产对苯二甲酸工艺的设计，采用的都是成熟的工业技术，其中与鼓泡塔氧化反应器类似的结构已经在工业上成功运行多年，在开发过程中又经过多种条件下的工业试验检验；尾气处理单元借鉴的主要是三井工艺、浆料处理单元主要借鉴了Amoco工艺。

In the key support's project may see from the plan, products and so on refinery, ethylene, xylene, fine dicarboxylic acid, chemical fertilizer, alkene receive the direct support.

从规划中重点支持的项目中可看出，炼油、乙烯、二甲苯、精对苯二甲酸、化肥、烯烃等产品受到直接支持。

Throws the increment in the sodium hypochlorite is 10%,曝气 the time is 1 hour its processing efficiency reaches as high as 98.10%, simultaneously may know: The ultrasonic wave degeneration dicarboxylic acid effect is not ideal

在次氯酸钠投加量为10％，曝气时间为1小时其处理效率高达98.10％，同时可以得知：超声波降解对苯二甲酸效果不理想

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。