The evaporation and crystallization is the key procedure in the preparation of caustic soda, aiming at the removal of NaCl and increasing the concentration of NaOH solution.
隔膜电解法是我国主要烧碱制备方法之一,蒸发结晶系统是以去除电解液中氯化钠等杂质和提高烧碱浓度为主要目的的制烧碱关键工序。
Mechanisms controlling water chemistry of lake and river water from Nam Lake are illustrated,it is indicated that lake water is mainly controlled by evaporation-crystallization effect,while river water is mainly influenced by rock weathering function.
从水化学的控制影响因素来看,纳木错湖水主要受蒸发-结晶作用控制,而河水则主要受岩石风化作用影响,其中碳酸盐和硅酸盐的风化影响最为重要,其次是部分蒸发岩的溶解,而区域内湖水蒸发与大气海盐传输也有一定的贡献。
The influence law of mass transfer in forced inner circulation evaporative crystallization system is studied.
对隔膜法制烧碱中强制内循环蒸发结晶系统中传质的影响规律进行了深入研究,根据扩散理论和Frossling方程,建立了传质影响规律的数学模型,并将宏观可控参数与微观结晶粒度相结合,建立了物料流速影响无机盐结晶晶体粒度尺寸的数学模型。
However, too higher of the heat transfer ΔT will cause unstable evaporation crystallization,even cause plant shutdown, and make things reverse.
蒸发结晶是化工生产中常见的单元操作，在其加热过程中，较高的传热温差对于强化传热效率、提高设备能力极为有利。
In evaporation crystallization process,liquid temperature raising rate and evaporation quantity are coupled and difficult to control.
针对蒸发结晶生产过程中存在的液相温升速率和蒸发量耦合性较强、控制难度大的问题,设计开发了一个多变量自校正分级模糊控制器。
In order to get better products, the evaporation crystallization process of ammonium sulfate solution made by coke oven gas absorption was studied systematically both in experiment and theory.
本文针对硫酸铵产品所存在的问题,对焦炉气吸收制得的硫酸铵溶液的蒸发结晶工艺进行了研究和优化。
The obtained data can be used in the simulation of the multistage decompression evaporation crystallization process.
所得数据可以用于粗对苯二甲酸多级降压蒸发结晶过程的模拟。
Investigation on Desalination and Incineration in Fluidized Bed for Organic Salty Liquid Wastes;
含盐高浓度有机废液的蒸发结晶及流化床焚烧处理研究
become encrusted with crystals due to evaporation.
因为蒸发作用而结晶成硬壳。
Special Crystallization Behavior of Boron during Oilfield Brine Evaporation
硼在油田卤水蒸发过程中的特殊结晶行为研究
Preparation of a-C Films Consisted of Nano-graphite Structures by Ion Bombardment Assisted Electron Beam Evaporation Deposition
离子轰击辅助电子束蒸发制备含有纳米石墨结构的非晶碳膜
If you evaporate a little sea water on a porcelain dish;on cooling, crystals of common salt will deposit on the sides of the dish.
如果你将少许海水放到瓷盘中蒸发，冷却后就会有普通食盐的结晶附着在盘的四周。
The C_(60)-polyethylene thin film is in a cry- stal state when the substrate temperature is about 140℃ and its lattice constant is1.454nm.
基底温度为140℃蒸积的c＿（60）－pE薄膜具有晶态结构，其晶格常数为1．454nm。
A growth of salt crystals on a surface caused by evaporation of salt-laden water.
起霜盐晶体增多，由盐水蒸发引起的表层起霜
A soluble crystalline solid may be separated from a solution by evaporation.
可溶性晶体可以通过蒸发从溶液中分离出来。
Synthesis and Characterization of Silicon Carbide Whisker Arrays Prepared by Thermal Evaporation Method;
热蒸发方法碳化硅纳米晶须阵列的合成与表征
Properties of Centimeter-long ZnO Whiskers Prepared by Thermal Evaporation of ZnO Powders;
热蒸发法制备厘米级ZnO晶须及特性研究
Synthesis and Characterization of Silicon Carbide Nano-whisker by Thermal Evaporation Method;
碳化硅纳米晶须的热蒸发法合成与表征
Natural Evaporation Test of Intercrystalline Brine of Youquanzi Potassium Deposit
油泉子钾矿床晶间卤水(KCl)自然蒸发试验研究
Grain Size Distribution and High Magnetic Filed in Zn film Growth by Vacuum Deposition
强磁场下真空蒸发Zn薄膜晶粒细化研究
Growth and Characterization of CdS Polycrystalline Films by Electron Beam Evaporation
电子束蒸发制备CdS多晶薄膜及性质研究
crystal-induced arthritis
结晶体诱发性关节炎
A deposit of minute ice crystals formed when water vapor condenses at a temperature below freezing.
霜冻当气温低于零度时由水蒸气凝结而成细小冰晶的沉积
To separate(a chemical compound) into components, as by distillation or crystallization.
分馏把（化学化合物）分离成各种成份，如通过蒸馏或结晶作用