The kinetic mechanisms of dissolution and crystallization reactions have been confirmed according to order reaction, activation energy and effect of stirring.
依据反应级数、活化能及搅拌效应,确定了该复盐的溶解和转化结晶反应动力学机制。
The crystallization kinetic equation of these compounds were fitted with experimental data by computer, and the crystallization reaction mechanism has been proposed.
同时拟合给出了结晶动力学方程,并对结晶反应机理进行了探讨。
Ammonia and sulfuric acid (SO3) in and the reaction liquid after vacuum evaporation, concentration, crystallization, and then to liquid-solid separation processes obtained dry product.
氨水与硫酸(SO3)进行中和反应,反应液经过真空蒸发、浓缩、结晶,再进行液固分离、干燥等工序制得产品。
Mixing phenomna in industrial crystallization, and effects of mixing characteristics on the crystal growth rate were discussed using the principles and methods of chemical reaction engineering.
运用化学反应工程的观点和方法研究了工业结晶过程中流体的混合状态及其对晶体生长速率的影响。
High purity nano-sized magnesium hydroxide was prepared by impinging stream reaction crystallization method using bischofite (from Chaerhan salt lake, in Qinghai Province) as raw material.
采用撞击流反应结晶方法,以青海盐湖水氯镁石为原料,制备了高纯纳米氢氧化镁。
It is considered that in the initial stage of film growth, the space reaction processes play an important role for the low-temperature crystallization of pc-Si film.
因此可以认为,在多晶硅薄膜生长的最初阶段,空间反应过程对低温晶化起重要作用。
Reactive crystallization consists of three steps: mixing, reaction and crystallization.
反应结晶过程分为混合、反应和结晶几个基本步骤。
The technique process and reaction condition of 4a molecule sieves synthesized from coal-series kaolinite, as well as changes of kinetics and shape in its crystallization is discussed in this paper.
本文对煤系高岭岩合成4a分子筛的工艺路线和条件、结晶过程中的形态和动力学变化进行了探讨。
Based on the principle of reaction crystallization, a new technology of direct crystallization of boric acid from the brine of salt lake by acidification at room temperature.
利用反应结晶原理,研究了室温酸化盐湖卤水直接结晶硼酸的新工艺。
A new technology was proposed to visually study the crystallization morphologies of naproxen particles synthesized by reaction-precipitation.
采用毛细显微摄像技术对反应结晶法制备多形貌萘普生药物的晶体生长进行了直观、实时的观察和研究。
The expansion of alkali-carbonate reaction is caused by topochemical reaction and pressure of crystallization.
碱-碳酸盐反应是由原地化学反应和结晶压引起膨胀。
In addition, the obtained aniline is made to react with crystallization mother liquor to obtain aniline-arsenate for participating main reaction, and this may further reduce pollution.
此外,所得苯胺又用以与结晶母液反应获取苯胺砷酸盐参与主反应,进一步降低了污染。
Solidification process of CV graphite iron with the addition of various CV-graphitizing materials and the crystallization behavior of the graphite during the eutectic reaction was clarified.
通过对各种处理剂处理的蠕虫状石墨铸铁凝固过程的研究,共晶反应时石墨的析出过程已经明确。
The effect of boron to silica molar ratio, basicity, alkali cations, seeds, aging and reaction time on the crystallization was investigated.
考察了凝胶硅硼比、碱度、碱金属离子、添加晶种、老化时间和晶化时间对晶化产物的影响。
Some factors affecting DCP crystallization are studied, in the reaction of lime emulsion neutralizing defluorinated phosphoric acid for the preparation of DCP.
用一定浓度的石灰乳中和脱氟磷酸制备饲料级磷酸氢钙(DCP),研究中和过程中影响磷酸氢钙结晶的主要因素。
Result: Through the reaction of 7-ADCA and Dane Salt, one step crystallization gives Cefalexin with the total yield 89.4% .
结果:7- 氨基-3-去乙酰氧基头孢烷酸(7-ADCA)和苯甘氨酸邓钠盐反应,只需要一步结晶即可得头孢氨苄,总收率89.4%。
This invention has well reaction efficiency and selectivity to overcome the defects in prior art and benefit to post-treatment and crystallization.
该方法克服了先有方法重现性差、产率和产物纯度不 稳定的缺点,解决了后处理繁琐、结晶困难等问题。
This invention has well reaction efficiency and selectivity to overcome the defects in prior art and benefit to post-treatment and crystallization.
该方法克服了先有方法重现性差、产率和产物纯度不 稳定的缺点,解决了后处理繁琐、结晶困难等问题。
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