二甲酸

In the invention, normal reversible absorbing transfer material for solar energy which are mixture of cobalt chloride and sextic methyl tetramine, phthalandione lipid compound and trilateral methane lactone compound, said material are produced to micro cachet that colour changes as stemp, changing reversely in normal temp, then said micro cachet are compounded with common white silicate cement to produce the invention cement base material.

本发明采用对太阳能呈常温可逆吸收转换材料：氯化钴与六次甲基四胺混合物、邻苯二甲酸酯类化合物和三芳甲烷内酯类化合物，将上述材料制成微胶囊，再将所制出的常温可逆温致变色微胶囊与普通白色硅酸盐水泥复合，即可制备出常温可逆温致变色水泥基材料。

By using isopropyl benzene as the internal standard material, using Agilent 1100 HPLC, using methanol-acetonitrile-water as mobile phase ,using three-component grade elution program, the components that contain benzene such as TALD,PT,4-CBA,TA,BA,PX and internal standard material isopropyl benzene in liquid phase product was analysed. Shimazu6A GC was used to analyse the solvent acetic acid and internal standard material isopropyl benzne in liquid phase.

以异丙苯为内标物，应用Agilent1100高效液相色谱仪，用甲醇－乙腈－水为流动相，采用三元梯度洗脱程序分析液相产物中的含苯环组分对甲基苯甲醛、对甲基苯甲酸、对羧基苯甲醛、对苯二甲酸、苯甲酸、对二甲苯和内标物异丙苯，应用Shimazu6A气相色谱仪分析液相中的溶剂醋酸和内标物异丙苯。

Objective To study the changes of urinary ions and enzymes in workers exposed to terephthalic acid.

目的 探讨对苯二甲酸作业人群尿酶和尿液离子水平的变化。

The results of the purified terephthalic acid processing wastewater toxicity will be reported in this paper.

本文报道精对苯二甲酸生产废水生物毒性的研究结果。

The research points to a new direction for improving the hydropurification catalyst of crude terephthalic acid.

研究结果可为粗对苯二甲酸加氢精制催化剂的研究提供一个新的方向。

Concentration of terephthalic acid was determined by high-performance liquid-phase chromatography.

通过特制的取样装置取样后用高效液相色谱测定对苯二甲酸的溶解度。

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 experimental study on the treatment of terephthalic acid industrial wastewater by heterogeneous catalytic oxidation has been carried on.

采用非均相催化氧化法处理对苯二甲酸工业废水，研究了反应时间、氧化剂投加量、废水pH和废水起始浓度对CODCr去除率的影响。

Purified terephthalic acid, one of the most important feedstocks 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液相氧化法生产。

The properties of purified terephthalic acid waste mud in the process of PTA sewage tank were introduced briefly.

简要介绍了精对苯二甲酸生产过程中，外排至污水厂活性污泥处理池中形成的污泥废料的性状。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。