三氧化硫在硫磺酸里的吸收。
二氧化硫和氧气反应生成三氧化硫。
The reaction of sulphur dioxide and oxygen to give sulphur trioxide.
发烟硫酸含三氧化硫酸的一种腐蚀性溶液。
对液体三氧化硫磺化技术的特点进行了概述。
The sulfonation technology of the liquid sulfur trioxide was also reviewed.
对我国三氧化硫磺化技术的研究开发进行了回顾。
The research and development of Chinese sulfur trioxide sulfonation technology is reviewed.
一种稳定的液态三氧化硫直接磺化重烷基苯新方法。
A new method to sulphonate dialkylbenzene directly by a stable liquid sulphur trioxide.
用三氧化硫脲和十二胺为原料合成了重十二胍亚硫酸盐 。
Dodecyl guanidine hydrogen sulfite has been synthesized from dodecyl amine and aminoiminomethanesulfonic acid.
综述了三氧化硫磺化在染料中间体生产中的应用和技术进展。
Advances in applications and technology for sulfonation using sulfur trioxide in manufacturing dye intermediates are reviewed.
研究了以十六胺和三氧化硫脲为原料制备十六胍亚硫酸盐的方法。
The preparation methods of hexadecylguanidium sulfite from hexadecylamine and aminoiminomethanesulfonic acid was studied.
该催化剂具有成本低，催化活性高，极低的二氧化硫氧化成三氧化硫活性的特点。
The catalyst is characterized by low cost, high catalytic activity and very low activity to oxidize sulfur dioxide to sulfur trioxide.
叙述了用液体三氧化硫作为磺化助剂的磺化技术，同时，指出了该项技术的优缺点。
This paper described the technique of the sulfonation using the liquid sulfur trioxide as a sulfonating agent. The advantages and disadvantages by using this process were pointed out.
本文研究了采用重芳烃和三氧化硫为原料合成重芳烃石油磺酸盐的方法、工艺及产物性质。
The method and the technology of synthesizing heavy aromatic petroleum sulfonate by heavy aromatic hydrocarbon and sulfur trioxide and the properties of synthesized product are studied in this paper.
吡啶可以和卤素、硝基四氟化硼盐、 三氧化硫、硼烷及三氧化铬反应，形成一些有用的有机试剂。
Pyridine can react with halogens, nitronium fluoroborate, sulfur trioxide, boranes and chromium trioxide to form some useful organic reagents which are introduced briefly in the paper.
评述了氯磺酸法、三氧化硫法、二氧化硫法、联产法等氯化亚砜合成方法及其采用这些合成方法的生产企业情况；
Synthesis methods of thionyl chloride such as HSO 3Cl method, SO 2 method, SO 3 method, co production method and enterprises adopting above methods are evaluated.
介绍ICP -AES发射光谱法的工作原理和以icp - AES测定湿法磷酸萃取料浆中液相三氧化硫的方法。
The principle of ICP-AES emission spectral analysis and ICP-AES method to measure liquid SO3 in extracted slurry for WPA production is described.
介绍了以硫酸法钛白粉副产物绿矾为原料，氧化焙烧生产铁红粉，并研究了氧化反应中硫转化为三氧化硫的适宜工艺条件。
Production of ferrous powder by oxidative roast of copperas, a byproduct of titanium pigment was introduced, and optimum process for the transformation of sulfur to sulfur trioxide was studied.
重质燃料油中通常含有一定量的硫及硫化物，燃烧过程中绝大部分形成二氧化硫，二氧化硫在一定条件下与氧化合形成三氧化硫。
The most of sulfur and sulfide that exist in the heavy fuel oils can be transformed into SO2, and SO2 can be oxidized to form SO3 during combustion of heavy fuel oil at certain condition.
以愈创为原料，用二烷· 三氧化硫加合物（D。S。试剂）作磺化剂合成呱仑酸钠，总收率71% ，产品纯度在99。5 %以上。
Sodium gualenate was prepared from guaiazulene by using dioxane sulfur trioxide(D. S. agent ) as sulfonation agent in yield of 71% with 99.5% purity.
以愈创为原料，用二烷· 三氧化硫加合物（D。S。试剂）作磺化剂合成呱仑酸钠，总收率71% ，产品纯度在99。5 %以上。
Sodium gualenate was prepared from guaiazulene by using dioxane sulfur trioxide(D. S. agent ) as sulfonation agent in yield of 71% with 99.5% purity.
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