查询词典 sulfonation

The preparation methods of sulfonated coal and factors such as sulfonation time, sulfonation temperature and ratio of acid to coal etc.

试验研究了褐煤制磺化煤的制备方法及磺化温度、磺化时间、酸煤比等因素对产物磺化煤的离子交换活性的影响。

The applied level of operation technology in units like sulfonation, nitration, hydrogenation, polymerization, ammonolysis and separation etc.

十一五的发展战略是充分发挥自身优势，加大投入力度，合理构造产业链，重点发展基础化工、精细化工、农用化工。

The sulfonated polyetherketone with cardo group films made by different sulfonation degrees and solvent evaporation shows different microstructure by PALS and atomic force microscopy.

利用对高分子材料纳米量级自由体积空洞极为灵敏的正电子探针，并辅之原子力显微镜法研究了磺化及溶剂蒸发对酚酞侧基聚芳醚硐膜制备的影响。

The sulfur trioxide sulfonation technology in China and the application of new technology in the sulfonation unite were introduced.

介绍了国内三氧化硫磺化技术和磺化装置中的新技术的应用，从工艺、设备、仪表和自动控制等方面阐述了一些最近的技术成果。

Main contents and conclusions of this dissertation are as follows:(1) SPEEK with different degree of sulfonation was synthesized by using sulfonation reactions of PEEK and concentrated sulfuric acid.

主要的研究内容和结论如下：1、以PEEK为原料、浓硫酸为磺化剂，制备了不同磺化度的磺化聚醚醚酮。

Sulfonation reaction: Sulfonation was carried out according to the procedure described by Makowskiet al.

磺化反应：磺化是依法进行的程序描述makowskiet基地。

By way of sulfonation on emeraldine base polyaniline, sulfonated polyaniline was prepared. Effect of reaction conditions on conductivity and sulfonation degree of SPAN was discussed in detail. The relationship of sulfonation degree and solublility was also discussed.

通过磺化的方法，对本征态聚苯胺进行了磺化改性研究，讨论了磺化条件对磺化聚苯胺电导率、磺化度的影响以及磺化度与溶解度的关系。

The heterogeneously sulfonation products not only own the properties of reacting promptly and high sulfonation degree, but also have good performance in decreasing interface tension and tolerance to calcium ion.

多相磺化产品不仅有反应迅速、磺化度高的特点，在降低界面张力及对钙离子的容忍能力方面亦有不俗的表现，充分说明改变反应体系是具有巨大实用意义的。

The present invention uses industrial polystyrene as raw material, under the protection of inert gas uses complex of acidylating agent and concentrated sulfuric acid as sulfonating agent to make sulfonation, and utilizes dector-blade casting process or other membrane-forming process to prepare polystyrene sulfoacid membrane with low sulfonation degree.

本发明涉及电化学的燃料电池技术，更具体是指低温直接甲醇燃料电池用聚苯乙烯磺酸膜及其制备方法。本发明是以工业级的聚苯乙烯为原料，在惰性气体保护下以酰化剂与浓硫酸的络合物作磺化剂，进行磺化，并通过流延法或者其它成膜方法制备低磺化度的聚苯乙烯磺酸膜。

The invention uses the industry byproduct in production of sulfonation-process phenol or the byproduct (Na2SO3 content is 60-85percent) in production of p-cresol and sodium hydrosulfite to produce the aliphatic high range water reducer and takes acetone, formaldehyde, industry byproduct, sulphite or sodium pyrosulfite as raw materials and then sulfonation and condensation reactions are carried out in aqueous medium, the reactant weight ratio is acetone: formaldehyde: sulphite plus industry byproduct: water is equal to 1:2.5-4.5:1.5-2.6:4.0-6.0, the mass concentration of the condensation compound obtained is 30-42 percent, and the viscosity thereof is 20-100m.

本发明利用磺化法苯酚生产中的工业副产品，或者对甲酚和保险粉生产过程中副产品(Na 2 SO 3 含量在60～85％)生产脂肪族高效减水剂，采用丙酮、甲醛、工业副产物、亚硫酸盐和或焦亚硫酸钠作为原材料，在水介质中进行磺化和缩合反应，反应物的质量比为丙酮∶甲醛∶亚硫酸盐副产品∶水＝1∶2.5～4.5∶1.5～2.6∶4.0～6.0，所得到的缩合物的质量浓度为30～42％，粘度为20～100m。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐