Some discussions on the reform of sulfur trioxide sulfonation technology;
三氧化硫磺化技术改造中一些技术问题的探讨
Research and development of liquid sulfur trioxide sulfonation;
液体三氧化硫磺化技术研究开发
Present situation and development trends of Chinese sulfur trioxide sulfonation set;
我国三氧化硫磺化装置现状及发展趋势
Discussion on the determination of the sulphur trioxide in coal ash;
对煤灰中三氧化硫测定的探讨与尝试
Nitrobenzene is used as original material,it is sulfonated by gas sulphur trioxide to product sodium m-nitrobenzene sulfonate.
以硝基苯为原料进行磺化,采用气体三氧化硫为磺化剂,生产间硝基苯磺酸钠,提高了产品纯度,减少了90 % 的废酸,使生产能力提高了一倍,为还原硝基生产氨基苯磺酸钠打下了良好的基础。
The best laboratory condition for producing sulphur trioxide was studied and the experimental facilities were improved so that the operation became convenient,phenomenon apparent,production higher and pollution was reduced.
探究了实验室制取三氧化硫的最佳实验条件 ,并对以往的装置有所改进 ,使实验操作方便 ,现象明显 ,产率提高 ,污染减小 实验结果表明 ,以 5g无水亚硫酸纳与 10ml浓硫酸反应 ,再经催化氧化制取三氧化硫 ,效果好 ,操作方
A research on rapid measurement of sulfuric acid anhydride content in coal ash;
对煤灰中三氧化硫含量快速测定方法的研究
ICP-AES Determination of SO_3 in Cement
电感耦合等离子体原子发射光谱法快速测定水泥中三氧化硫
The fresh wastewater from thiourea dioxide production contains mainly thiourea dioxide, H2O2, thiourea trioxide etc as pollutants.
新鲜二氧化硫脲废水中主要含有二氧化硫脲、H2O2和三氧化硫脲等污染物质:废水中的二氧化硫脲与H2O2可以转化成三氧化硫脲;废水中H2O2与另外加入的适量硫脲反应得到二氧化硫脲粗品,有很高的收率,所得粗品在预置水中溶解而被全部利用;减压蒸发可以回收三氧化硫脲,回收量21kg/m3。
The enthalpies of combustion of thiourea, formamidine disulphide dihydrochloride, thiourea dioxide, and thiourea trioxide were measured using an oxygen bomb calorimeter, and from which the molar standard enthalpies of formation of formamidine disulphide dihydrochloride, thiourea dioxide, and thiourea trioxide were obtained with values of 8.
用氧弹量热计测定了硫脲、二硫甲脒盐酸盐、二氧化硫脲以及三氧化硫脲的燃烧热,并由此获得二硫甲脒盐酸盐、二氧化硫脲以及三氧化硫脲的标准摩尔生成焓,其值分别为8。
sulphuric anhydride
三氧化硫, 硫(酸)酐
A corrosive solution of sulfur trioxide in sulfuric acid.
发烟硫酸含三氧化硫酸的一种腐蚀性溶液
The Art Conditions and Kinetic Study for Sulphonation Toluene by Gaseous Sulfur Trioxide;
甲苯气相三氧化硫磺化工艺条件及动力学研究
Present situation and development trends of Chinese sulfur trioxide sulfonation set;
我国三氧化硫磺化装置现状及发展趋势
Content Determination of Magnesia,Sulfur Anhydride and Alkali in Cement
水泥中有害成分氧化镁、三氧化硫及碱含量的检测控制要点
Phosphate rock and concentrate--Determination of sulfur trioxide content--Gravimetric method
GB/T1880-1995磷矿石和磷精矿中三氧化硫含量的测定重量法
Determination of SO_3 content in WPA and reactor slurry by thermosensitive titrimetric method
热敏滴定法测定湿法磷酸反应料浆及磷酸中三氧化硫含量的研究
ICP-AES Determination of SO_3 in Cement
电感耦合等离子体原子发射光谱法快速测定水泥中三氧化硫
sulphurous anhydride [ oxide ]
二氧化硫, 亚硫酐
Synthesis of Aryl Sulphoxides by Oxidiging Aryl Sulfides with Trichloroisocyanur ic Acid;
三氯异三聚氰酸氧化芳基硫醚合成芳基亚砜
Physiological Characteristics and Phylogeny of Three Sulfur-Oxidizing Bacteria (SOB) Strains;
三株硫氧化细菌（SOB）的生理生化及系统发育研究
Ultrasound enhanced catalytic oxidative deep desulfurization of diesel with H_2O_2-trichloroacetic acid
超声强化过氧化氢/三氯乙酸催化氧化柴油深度脱硫研究
Preparation of Hausmannite by Manganese Sulphate and the Kinerics of Its Thermal Decomposition;
硫酸锰制备四氧化三锰及其热解动力学研究
The Aqueous Phase Synthetic Methods for Bis-(Triethoxysilylpropyl)-Tetrasulfide;
双-[γ-（三乙氧基硅）丙基]四硫化物的水相合成
A Study on Preparation of Mn_3O_4 by Oxidizing Hydrolysis of Manganese Sulfate with Air in Ammonia Alkalescence Media
硫酸锰在氨性介质中制备四氧化三锰的研究
Study on the Inner Circulation Three-phase Aerobic Bio-fluidized Bed for Desulphurization of Wastewater
内循环三相好氧流化床用于废水脱硫研究
Experimental Study in Pretreatment of High-sulfur and High-arsenic Refractory Gold Concentrate by Ozone and Ferric Chloride
臭氧和三氯化铁氧化高硫高砷难浸金精矿的预处理试验研究
Oxidative Desulphurization in Hydrogen Peroxide/Formic Acid/Sulfuric Acid System
过氧化氢/甲酸/硫酸体系氧化脱硫研究