众文网1.毕业论文参考文献,请大家帮下忙帮我翻译成英文
The chlorine methyl benzene is a kind of important fine and organic chemical engineering raw material and it is a transparent liquid;Used for medicine, agrochemical, dyestuff。
etc..After being a methyl benzene liquid mutually a chlorination of staple, pass side chain and wreath to up respond, can make the fine chemicals of a much importance and in the center body, the chlorine methyl benzene industrialization synthesizes to mainly have two kinds of methods: While taking methyl benzene as the direct chlorination method of raw material, two is to take methyl benzene derivatives as the indirect method of raw material, the methyl benzene chlorination contains two kinds of different constructions, currently once its development point be the adjust of different construction ratio technique, two is the separation technique of different construction.Industry at home and abroad mainly in liquid phase chlorination of toluene to produce p-chlorotoluene, o-chlorotoluene chlorotoluene production can be catalyzed by metal chloride and molecular sieve adsorption separation, gold chloride catalysis because the pollution is more serious in the industrial device is limited, the effect of molecular sieve adsorption good clean separation science with molecular sieve adsorption separation of industrial production will be the only option.。
2.【对氯苯甲酸是一种药物中间体,可用对氯甲苯为原料,通过高锰酸钾
(1)由仪器的图形可知，B为冷凝管；故答案为：冷凝管；（2）A.对氯甲苯是一种优良的有机溶剂，对碱式滴定管上橡胶制品有明显的溶解腐蚀作用，故A错误；B.冷凝管应该是a进水b出水，使水与冷凝物充分接触，故B错误；C.控制温度在93℃左右，最好采用水浴加热，溶液受热均匀，故C正确；D.因加入稀硫酸酸化，可能含有硫酸根离子，所以取最后一次洗涤液少量于试管中，向其中滴入BaCl2溶液，可检验滤渣是否洗涤干净，故D正确；故选AB.(3)步骤②中对氯甲苯的加入方法是逐滴加入而不是一次性加入，理由是减少对氯甲苯的挥发，提高原料利用率；故答案为：减少对氯甲苯的挥发，提高原料利用率；（4）对氯甲苯和适量KMnO4反应生成对氯苯甲酸钾和二氧化锰，二氧化锰不溶于水，步骤③中过滤的目的是除去MnO2，滤液中加入稀硫酸酸化，对氯苯甲酸钾与稀硫酸反应生成对氯苯甲酸，对氯苯甲酸微溶于水，是白色沉淀；可观察到的实验现象是产生白色沉淀；故答案为：除去MnO2；产生白色沉淀；（5）根据趁热过滤得到对氯苯甲酸钾以及对氯苯甲酸经冷却结晶得到，所以洗涤滤渣最合适的洗涤剂，步骤③是热水，步骤④是冷水；故答案为：C;B;(6)6.00mL对氯甲苯完全反应可以得到对氯苯甲酸xg，则：：~ M1 M2 6.00*1.07 x解得：x=6*1.07M2M1而实验制得wg对氯苯甲酸，所以本实验产率的计算表达式为w6*1.07M2M1*100%；故答案为：w6*1.07M2M1*100%.。