The distilled water was added to the sulfonation liquid to obtain p-toluenesulfonic acid crystal.
将蒸馏水加入磺化液中，得到对甲苯磺酸结晶。
磺化反应；
The sulfonation could take place in an unclosed system.
磺化反应在散开体系中进行。
Reaction time short, the sulfonation efficiency is high.
反应时间短，磺化效率高。
The sulfonation technology of the liquid sulfur trioxide was also reviewed.
对液体三氧化硫磺化技术的特点进行了概述。
No significant polymer degradation was observed in the post-sulfonation processes.
在磺化过程中并没有观察到明显的降解现象。
The synthetic technique conditions of alkylation and sulfonation were investigated.
考察了合成过程中的烷基化和磺化反应的工艺条件。
The research and development of Chinese sulfur trioxide sulfonation technology is reviewed.
对我国三氧化硫磺化技术的研究开发进行了回顾。
Three kinds of polymers with different degree of sulfonation are synthesized in this thesis.
本文合成了三种不同磺化度的聚合物。
The molecular weight and sulfonation degree of SPS have little effect on the cement paste properties.
SPS的相对分子质量和磺化度对水泥净浆的性能几乎没有影响。
The water reducing agent of cement was prepared via sulfonation of semi-chemical pulping black liquor.
半化学浆黑液进行磺化改性制备水泥减水剂，并对改性工艺进行优化。
The influence of sulfonation degree and plasticizer to the ionic conduction of the systems was examined.
研究了磺化度和增塑剂对增塑体系的离子导电性的影响。
The high activity of the oleums is helpful for enhancing the sulfonation degree of the sulfonated bodies.
发烟硫酸活性高，有助于提高磺化物的磺 化度。
In the reaction of sulfonation, the azeotropic water removing, sulfuric acid was used as sulfonating agent.
在磺化反应中，采用共沸除水硫酸磺化法。
The lignosulfonate water reducing agent was prepared via oxidation and sulfonation of wheat straw alkali lignin.
以麦草碱木素为原料，采用氧化磺化法，制备了磺化碱木素减水剂。
The inexpensive and convenient coal water mixture (CWM) additive is prepared by sulfonation modify with sulfate lignin.
利用硫酸盐木质素改性制备廉价易得的水煤浆添加剂。
The production of SO3 sulfonation is in common present a problem, that is coking disposal and demarcate of the sulfonator.
SO3磺化生产经常会出现这样的问题．即磺化器的结焦处理及标定。
A study on the sulfonation condition of lignin and paper-making black liquor was made, and the conditions were determined.
对造纸黑液及酸析木质素的磺化进行了研究，得出了黑液及酸析木质素磺化的工艺条件。
Advances in applications and technology for sulfonation using sulfur trioxide in manufacturing dye intermediates are reviewed.
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。
With VPO, NMR, IR, the number average molecular of polyether and sulfonation degree of sulfonated polyether were characterized.
通过VPO，NMR，IR测试了聚醚预聚体的分子量，磺酸聚醚的磺化度。
In this paper we studied out a heterogeneous sulfonation method for preparing sulfonated polysulfone with low sulfonation values.
本文采用非均相磺化反应方法，制备了低磺化度的磺化聚砜。
The results of FT IR analysis showed that the sulfonation degree of the aromatic polyureas increased with increasing sulfonation time.
FTIR分析结果表明，芳香族聚脲的磺化程度随磺化时间延长而提高。
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。
It was investigated that the effects of type and amount of sulfite and catalyst as well as solvent, temperature and time of reaction on sulfonation.
研究了溶剂、催化剂、磺化剂的种类及用量、反应条件对磺化率的影响。
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。
The main areas of progress are as follows: 1) by optimization of conditions for sulfonation, the yield was increased and the amount of waste acid reduced;
其技术进步主要是：1）改善磺化反应的工艺条件、提高产品收率、减少废酸；
The sulfonated polystyrene (SPS) has been prepared by sulfonation reaction of the polystyrene, which is used as a filtrate reducer for oil well cement slurry.
通过磺化改性，制备了磺化聚苯乙烯（SPS）作为油井水泥降失水剂。
The interaction between zinc phthalocyanines with different sulfonation degree and three types of micelles were investigated by absorption and fluorescence spectra.
用吸收光谱和荧光光谱研究了不同磺化程度酞菁与不同胶束间的相互作用并计算了结合常数。
A low cost retarded high range water reducing agent GCL1 was prepared via oxidation and sulfonation modification using calcium lignosulfonate as primary raw material.
研究了木素磺酸钙的氧化磺化等复合改性工艺，合成了以木素磺酸钙为主要原料的低成本缓凝高效减水剂GCL1。
A new method to synthesize sodium dioleyl sulfosuccinate by esterification and sulfonation without adding any extra phase catalyst in nitrogen atmosphere was developed.
研究在氮气保护下采用非外加相转移催化剂经酯化和磺化合成磺基琥珀酸双十八油酯磺酸钠的新方法。
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