查询词典 sulfur

Additionally, the difference of corrosion phenomenon between pre-and aftersweetening was studied when the elemental sulfur coexisted with mercaptan.

不同结构的硫醇和二硫化物对元素硫的腐蚀产生不同的影响，使腐蚀铜片出现不同的多彩色。

The results show experiment have a higher removal rate and the last oxidized product of hydrothion and mercaptan in condensed state sulfide, could not be sulfur dioxide.

试验结果表明能达到较好的去除效果，硫化氢、硫醇的最终氧化产物可以不是二氧化硫，而是凝聚态的硫化物。

Thus,total desulfurization percent of hydrotreated gasoline increases,and mercaptan sulfur content reduces,because of the higher depth of reaction.

通过提高反应深度，加氢汽油总硫的脱除率提高，汽油中硫醇硫含量下降。

Various influence factors of mercaptan sulfur in OCT-M hydrotreated FCC naphtha are analyzed , and hydrogenation reaction temperature and H2 S content in recycle hydrogen can be considered as the key influence factors.

对影响OCT-M加氢汽油硫醇硫含量的因素进行分析，认为加氢反应温度和循环氢中硫化氢浓度是主要影响因素。

Aiming at the high content of sulfur mercaptan and short induction period of the naphtha, countermeasures were taken for improving the quality in accordance with the resid FCC char...

针对经常造成重油催化裂化汽油硫醇硫含量偏高、诱导期偏短的问题，结合重油催化裂化生产的具体特点及经验，提出了改善汽油质量的对策，并取得了满意效果。

It provides a route tothe compounds which contains three functional groups, two carbon-nitrogentriple bonds and one carbon-carbon double bond. In water, metallic indiumpromotes carbon-sulfur bond coupling reaction of aromatic sulfonyl chloride withsuitable organic halides to afford sulfones. In the last chapter, metallic tin mediated allylation of aldimines with allylbromide was revealed.

第三章，我们研究了在水相介质中金属铟促进的烯丙基溴对1，1-二氰基-2-芳基乙烯的Michael加成反应，生成一个含碳碳双键和二个碳氮叁键的三官能团化合物，另外，金属铟在水介质中还可以促进芳基磺酰氯与卤代烃发生碳硫键的偶联，生成砜。

A brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold.

一种脆的、银白色非金属元素，与硒和硫有关联，用于合金及作半导体，主要作为碲化物存在于铜、镍、银、金矿石中。

The transformation reaction of organic sulfur compounds in the presence of methanol have been discussed in the paper.

本文探讨了甲醇存时有机硫化物的转化反应。

KF series of moisture analyzer,model RC1 residual chlorine analyzer,GQH dualpath infrared CO and CO2 analyzer,model ST201 bench turbiditymeter,model ZD gas chromatography with zirconia's sensor,model WKL microcoulomb sulfur analyzer.

KF型系列水份测定仪，RC1A型残余氯浓度分析仪，GQH型红外线分析仪，ST201型台式浊度仪，ZD型氧化锆检测器气相色谱仪，WKL型微库仑硫分析仪。

In this paper, four parts are included to study the role of cloud dynamics, microphysics and chemistry process in ozone photochemistry and sulfur chemistry in the troposphere.

本文分四部分研究了与云过程有关的云动力学、云微物理和化学过程对对流层大气臭氧光化学和硫化学的作用。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。