Exhaust air or inert gas containing the DMF is continuously sent to a recovery system where the solvent is recovered by condensation or absorption. 排出的含有二甲基甲酰胺溶剂的空气或惰性气体被连续送到回收系统,通过冷却或吸收的方式被回收。
Effects of inert solvent on preparation of porous polystyrene materials 惰性溶剂在多孔聚苯乙烯材料制备中的作用
Study on the Polymerization of Bismaleimide and Epoxy Resin ⅰ. Reaction in Inert Solvent 双马来酰亚胺与环氧树脂在惰性溶剂中的聚合反应
The influence factors, such as extraction time, acidity and pH value of aqueous phase, the concentration of extracting agent and inert solvent are discussed. 对萃取时间、水相的酸度、水相的pH值、萃取剂的浓度、稀释剂等影响因素进行了较全面的分析。
It is found that the presence of an inert nonpolar solvent has a significant effect on the rate of the reaction. 结果表明,间二甲苯对反应速率有一定影响。
In inert solvent, the process of preparation of TiO_2 particles by hydrolysis of self-made titanium alkoxides is de-scribed. 在惰性溶剂中,以自制钛乙醇盐为原料,探讨了钛醇盐水解制取高纯TiO_2微粉的方法。
The lattice-fluid hydrogen bond equation of state model ( LFHB model) is used to correlate 1H NMR chemical shift of the proton in hydroxyl (-OH) of alcohol+ inert solvent mixtures. 运用含氢键缔合的格子流体状态方程(LFHB),仅用一个参数关联了一元醇-惰性溶剂共17个体系29套1HNMR化学位移数据。
Ozonidation was carried out in inert solvent. 臭氧化在惰性溶剂中进行。
Using hexane as an inert solvent, the molar ratios and the association contants of molecular complexes of N-methyl-2-pyrrolidone with benzene, toluene, P-xylene and mesitylene have been measured respectively at 30.00 ± 0.02 ℃ by refractometry. 本文以折射法分别测定了在30.00±0.02℃时N-甲基-2-吡咯烷酮(NMP)与苯、甲苯、对二甲苯、均三甲苯在正己烷为惰性溶剂中生成的分子络合物的摩尔比和络合常数。
When the reaction condition was above the critical temperature and pressure of the inert reaction solvent, the conversion of β-MN kept higher than 14%, whereas decreased to 1.23% for ambient pressure reaction. 当反应体系进入超临界态时,反应70h,反应转化率可维持在14%以上,而常压下反应8h,反应转化率已降至1.23%。
Gas flow liquid phase microextraction is a kind of sample preparation methods, which use the inert gas to "purge" out of the volatile or semivolatile component in the sample under the high temperature, and then extract solvent to enrich the targets. 气流式液相微萃取是一种在高温下样品中的挥发性、半挥发性目标物随着惰性气体的吹扫,通过萃取注射器内溶剂进行冷凝富集的样品前处理方法。