说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 二氯甲苯
1)  dichlorotoluene
二氯甲苯
1.
Furthermore,the synthesis of 2,4′-BPS in dichlorotoluene as a solvent was also st.
同时还研究了以较便宜二氯甲苯为溶剂合成2,4′-BPS的工艺条件:n苯酚∶n100%硫酸=2。
2.
The highest yield of dichlorotoluene and the conversion of p-chlorotoluene corresponding to that yield were obtained.
通过实验结果处理,可求得二氯甲苯的最高收率及相应的对氯甲苯转化率。
2)  chloroxylene
氯二甲苯
3)  XDC (Xylene Dichloride)
二氯二甲苯
4)  2,4-dichlorotoluene
2,4-二氯甲苯
1.
New process of 2,4-dichlorotoluene and analysis on benefit of economic and environment protection;
2,4-二氯甲苯新生产工艺及经济环保效益分析
2.
Some measures were adopted in the synthesis of 2,4-dichlorotoluene, such as slowing the stirring rotation rate of the reactor, improvement of chlorine addition to improve the reaction conditions yield of chlorination reaction, chlorine utilization and selectivity of 2,4-dichlorotoluene significantly.
采用降低反应釜搅拌转速、改进通氯方式、降低反应温度等方法,改善了2,4-二氯甲苯合成的反应条件。
3.
To solve the problem existed in the synthesis process of 2,4-dichlorotoluene, improvement on this process had been made and the optimal process conditions were established in which the reaction temperature (40 ℃) and speed of agitation (30 r/min) were determined and several tubes used to feed chlorine.
针对目前国内2,4-二氯甲苯生产合成工艺中存在的问题,改进了合成工艺,最佳工艺条件为反应温度40℃,转速30r min以及多管道通氯,使氯化收率提高至75%,氯气利用率提高至90%。
5)  3,4-dichlorotoluene
3,4-二氯甲苯
1.
A process for gas phase ammoxidation of 3,4-dichlorotoluene to prepare 3,4-dichlorobenzonitrile(DCBN) using DN120 catalyst was studied.
采用气相氨氧化法,在DN120号催化剂作用下,由3,4-二氯甲苯制备了3,4-二氯苯腈(DCBN)。
2.
Synthesis of 3,4-dichlorobenzoic acid from 3,4-dichlorotoluene by air oxidation with Co-Br salts and self-made cocatalyst in the condition of nonsolvent was studied.
在自制催化剂及无溶剂存在的条件下用空气氧化3,4-二氯甲苯合成了3,4-二氯苯甲酸,并研究了影响反应的因素。
6)  2,6-dichlorotoluene
2,6-二氯甲苯
1.
methoxy-2-methylbenzoic acid was synthesized from 2,6-dichlorotoluene by methoxylation, Grignard reaction and hydrolization, its total yield and purity is 72%,99.
介绍了以2,6-二氯甲苯为原料,经醚化、格氏反应、水解三步反应合成3-甲氧基-2-甲基苯甲酸的合成工艺。
补充资料:二氯甲苯
分子式:C7H6Cl2
分子量:161.03
CAS号:98-87-3

性质:无色液体,熔点-16℃,沸点207℃,82℃(1.33kPa),相对密度1.256(14/4℃),折光率1.5515,闪点92℃。不溶于水,溶于乙醇、乙醚。有强折光性,在空气中发烟。

制备方法:由甲苯氯化而得。干燥的甲苯在加热至沸(110℃)时,在光照下通氯反应。反应完成后蒸馏,收集204-208℃或104-105℃(4.0kPa)的馏分即为成品,收率84%。原料消耗定额:甲苯650kg/t、氯气1000kg/t。

用途:有机合成中间体。用于生产苯甲醛和肉桂酸、肉桂苯哌嗪等。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条