This proved that nitrourea was a more suitable reactant than urea to synthesize Keto-RDX.

由此表明了在生成RDX酮的应程中，硝基脲上比脲更为合适的应形式。

Hydrochloric acid and chlorous natrium are used as primary reactant to give out the gas of chlorine dioxide.

该装置以盐酸和亚氯酸钠为主要应物,应放出二氧氯气体。

Cross-linking agent glycoluril with a yield of 61.8% had been synthesized by employing urea and glyexal as reactants,and hydrochloric acid as catalysts.

以尿素和乙二醛为原料,在酸催的条件下合成了甘脲,产率为61.8%。

The effects of reactant ratio, reaction time, catalyst amount,the species and amount of deaquation reagent on the yield of benzaldehyde 1,3-butanediol acetal were investigated.

对苯醛与1,3-丁二醇在钒磷氧催作下的缩醛应进行了研究,考察了醇醛比、应时间、催量、带水种类和体积等因素对苯醛1,3-丁二醇缩醛收率的影响。

Using sodium hydrosulphide or sodium thiosulfate as materials,the production cost of TGA is low.While,a high content of TGA can be obtained with thiourea as reactant.

本文对巯基乙酸的合成工艺进行了比较研究,认为硫氢钠法和硫代硫酸钠法生产成本低,适宜于选矿巯基乙酸的生产,而硫脲法可得到较高浓度的巯基乙酸。

Deliming using CO2 Supercritical Fluid(CO2 SCF) as reactant was investigated, and the effect of the presure, temperature and time on deliming and degrease was studied.

本文以CO2超临界流体作应物于制革的脱灰，研究了超临界CO2的压力、温度、时间及工艺对脱灰和脱脂的影响。

This paper discussesd the preparation of glage-trace element fertiliar.Main raw material-glass and some trace element were put into together,when the reactants were melt,they occur solidoid reaction.

玻璃微量元素肥料,是以玻璃为主要原料,加人适量的微量元素,经灼烧成为熔融状态后,发生固相应,即生成玻璃微量元素肥料。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催,十三碳二元酸与乙醇为原料合成十三碳二元酸二乙酯,考察了影响应的因素。

The hydrothermal synthesis method was adopted to prepare the rutile-type nano-sized TiO2 by using low-cost metatitanic acid as the starting reactant and the monacid as the dressing agent.

以偏钛酸为起始应物,一元酸为修饰,采水热合成法制备纳米金红石型二氧钛。