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The effect of flow rates, initial concentrations, resin bed heights, its height/ diameter ratios and temperature on breakthrough curves of sulfuric acid/2-naphthalenesulphonic acid, 2-naphthalenesulphonic acid/sulfurous acid and sulfuric acid/ 2-naphthalenesulphonic acid/sulfurous acid systems was investigated. Excellent agreement was obtained between experimental data and the suggested breakthrough data model, with which the breakthrough curves can be accurately predicted for multi-component adsorptive separation in resin bed, the experiment of adsorptive separation may be scaled up, and the plant may be designed.

考察了流速,初始浓度,床层高度,床层高径比,温度等因素对硫酸-2-磺酸,2-磺酸-亚硫酸和硫酸-2-磺酸-亚硫酸等混合体系穿透曲线的影响,所建立的穿透曲线模型与实验结果拟合较好,模型可较准确预测多组分吸附分离的穿透曲线,可用于指导吸附分离实验的放大以及装置的设计。

The result indicates that the naphthalin ring in Naphthol green B molecule is degraded as organic acid and benzoquinone, and further becomes inorganic substances by chlorine dioxide direct oxidation and catalytic oxidation so that the ability to biology treatment of the difficulty degradation wastewater is improved, which is good for the further treatment.

结果表明,酚绿经化学氧化和催化氧化后,分子中环被氧化降解为羧酸和醌,并进一步降解为无机物,提高了废水的可生化性,为难降解废水的后续处理创造了条件。

In this paper,- and (5)-2,2'-diethynyl-1,1'-binaphthyl with highly stable chiral configurations were employed as structural templates, and a new type of helical cyclophane compounds-3 and-3 were synthesized in enantiopure form by the introduction of benzyl sulfone through Sonogashira coupling reaction, followed by the treatment of disulfone with lithium diisopropylamide.

基於2,2'-二取代的联衍生物在手性构型上高度稳定的特点,分别从光学活性的-和-2,2'-二乙炔基-1,1'-联结构模板出发,通过Sonogashira偶连反应导入苄基碸,然后用二异丙基氨基锂处理制得的联二碸成功地合成了一种新的螺旋环芳分子-对映异构体-3和-3。

In the fifth chapter, six compounds formed between nitrogen-containing ligands such as 2, 2'-bipyridyl, isonicotinamide and 1, 4, 8, 11-tetraazacyclotetradecane and the solution cadmium sulfonates such as 1, 5-naphthalenedisulfonate, 2, 6-naphthalenedisulfonate, 4, 4'-bipenyldisulfonate and 4, 4'-penyletherdisulfonate have been synthesized and structurally characterized. Besides, another compound has been synthesized with cadmium carbonate reacting with 1, 5-naphthalenedisulfonate acid.

第五章以2,2'-联吡啶、异烟酰胺和1,4,8,11-四氮杂环十四癸烷与含有Cd〓和1,5-二磺酸根离子、2,6-二磺酸根离子、4,4'-联苯二磺酸根离子和4,4'-苯醚二磺酸根离子的水溶液反应,合成了六个化合物,另外以1,5-二磺酸与碳酸镉反应合成出一个化合物。

At the same time, some of the pyrolysates are the important favors in cigarette smoke, such as isophorone and megastigmatrienone, etc. The amounts of these pyrolystaes alter with the change of pyrolysis temperatures and the concentration of oxygen. the lutein is applied to cigarettes as flavoring.

分析结果表明,叶黄素的裂解产物主要是甲苯和对-二甲苯等苯及其同系物、1,2–二氢-1,1,6-三甲基-和2,7-二甲基及其同系物,另外还生成氧化异佛尔酮和巨豆三烯酮等酮类物质和烯烃类物质等,这些物质随着裂解温度和裂解氛围的变化,其种类和峰面积归一化百分含量有所不同。

As for the monitor of water pollution, Lemna minor, Spirodela polyrrhiza shleid and Azalla imbricate Nakai could be used as the monitors for the naphthalene pollution in water body because of their sensitivity to it.

在净化过程中,对5种水生植物产生生理毒害作用,且随浓度的增加显示出明显的毒害效应,表现为呼吸强度受到抑制,叶绿素含量降低;对POD而言,凤眼莲、喜旱莲子草随浓度增加逐渐升高,而浮萍、紫萍则表现出先升高然后降低,满江红一直降低。

Naphthalene monosulfonic acid,which wos synthesized through dripping concentrated sulfate acid into naphthalene,was turned into polyby reacting with forma|dehyde.

浓硫酸滴加到中生成β-磺酸,在甲醛的作用下合成出聚磺酸盐,并对它们的结构性能和作用机理进行了研究。

Dimethylnaphthalene is an ideal raw material of the production of polyethylene naphthalate. It is an important task to obtain 2,6-dimethyinaphthalene in low cost.

2,6-二甲基是制备高性能聚酯-聚对二甲酸乙二醇酯最理想的原料,如何低成本地获得2,6-二甲基已成为一项重要的课题。

Dimethylnaphthalene (2,6-DMN) is a potentially useful raw material for production of polyethylene naphthalate, polybutylene naphalate and liquid crystalline polymers with superior properties. How to industrialize the process of producing 2,6-DMN is getting more and more studied in the world recently.

2,6-二甲基(2,6-DMN)是合成新型聚酯树脂聚二甲酸乙二醇酯和聚二甲酸丁二醇酯以及液晶高分子聚合物的重要原料,所以将2,6-DMN的生产工业化最近几年成为国内外研究的重点。

Two new kind of energy transfer donor-acceptor dyads consisting of α-naphthoic acid moiety and 9-aminoacridine units linked by tetraethylene glycol or triethylene glycol flexible chain have been synthesized.

本工作分别用聚三乙二醇及聚四乙二醇柔性链将α-甲酸酯与9-氨基吖啶连接起来,合成了两种新型二元发色团分子体系,在两个体系中,选择激发α-甲酸酯,都可以发生从α-甲酸酯到9-氨基吖啶的高效率的单重态-单重态能量传递。

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In her eyes, because that is the doorway toher heart * the place where love resides.

女人的漂亮必須從她的眼睛中去看,因為那是她心靈的窗戶和愛居住的地方

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