结晶

In order to simulate plant operation, another new type of column crystallizer is designed. It abolishes the temperature measuring taps and sampling taps, and uses a double screw propeller to transport crystals, this column crystallize has been authorized by two patents.

为了模拟工业装置的运行情况，还重新设计了新型的结晶塔，此结晶塔使用双螺旋输送桨来输送晶体，取消了提纯段的取样口和测温口，所设计的结晶塔已经获得了专利授权。

The results of XRD showed that two polymers had simular crystalline structure, the degree of crystallinity of polymer Ⅱ is higher than that of polymer Ⅰ.

采用XRD测试聚合物的结晶结构，结果表明两种聚合物有相似的结晶结构，聚合物Ⅱ的结晶度大于聚合物Ⅰ。

The crystallization temperature and the crystallinity of PP increase due to the nucleation effect of sodium benzoate, which contributed to the improvement of the rigidity and heat resistance of the composites.

研究表明，RPS对PP具有一定的促进结晶的作用，且含有苯甲酸钠的yRPS对PP的成核作用较之未加苯甲酸钠的nRPS更为显著，故RPS的加入提高了PP的结晶温度、熔融温度和结晶度。

The problem from sodium tripolyphosphate,4A zeolite,sodium metasilicate and phosphorous prohibition was summarized and the various performances and effect of δ-layered crystal disodium silicate as detergent were analyzed.

分析了现用助洗剂三聚磷酸钠、4A沸石、偏硅酸钠存在的问题及禁磷的重要性，重点论述了δ-层状结晶二硅酸钠用作助洗剂的各种性能及效果，认为δ-层状结晶二硅酸钠是一种良好的无磷助洗剂，它具有其他助洗剂所不具备的优良性能；对δ-层状结晶二硅酸钠的制备工艺作了简要介绍，并作了市场及在国内工业化生产的可性行分析。

Properties: colorless needle-like crystals, melting point 105 ~ 106 ℃, optical rotation +51 °(c = 0.978, chloroform), other reports shows that by ethanol recrystallization the melting point 104 ~ 105 ℃, methanol re - the formation of solvate crystal melting point 84 ℃.it is Soluble in acetone, chloroform, insoluble in ether, petroleum ether, insoluble in water.

性质：无色针状结晶，熔点105～106℃，旋光度+51°（ c=0.978，氯仿），还有报道经乙醇重结晶熔点104～105℃，经甲醇重结晶形成的溶剂化物熔点84℃。易溶于丙酮、氯仿，难溶于乙醚、石油醚，不溶于水。

The fundamental theory of crystallization including the crystallization process, the preparing methods of supersaturated solution and the crystallization kinetics, was discussed in detail.

从结晶过程的概念、过饱和溶液的制备方法到结晶动力学，对结晶过程的基本理论进行了讨论。

Using poly (4-merhylpentene-l) as a membrane material and cyclohexane, irich-loroethylene, tetrachloroethylene, mixture of cyclohexane and trichloroethylene or tetrachloro-ethylene as solvents, the solution were cast to form homogeneous dense membranes, and the crystalline properties and surface morphology were investigated by DSC and TEM.

以聚4-甲基戊烯-1为膜材质，分别以环己烷、三氯乙烯、四氯乙烯、环己烷/三氯乙烯及环己烷/四氯乙烯为溶剂，研究了这些溶液浇铸膜的结晶性质和表面形态。结果表明，溶剂对PMP的相对溶解能力和挥发速度同所成膜内PMP的结晶形式和结晶度密切相关；不同溶剂体系的PMP溶液浇铸膜的表面形态也不尽相同。

The crystalline,thermochemistry property and crystal appearance of ammonium tetramolybdate under ultrasonic were discussed.

摘 要：研究了超声波对两种不同结晶形态的四钼酸铵结晶过程的影响，揭示了超声波对钼酸铵溶液结晶的晶型、热化学性质和晶体形貌的影响规律。

For titania slag the relationship between viscosity and temperature as well as conductivity and time was investigated.

研究了含钛渣的粘度、电导率与温度、渣成分、时间的关系，获得了渣中初始结晶相CaTiO3结晶过程的动力学参数，建立了CaTiO3相的结晶温度与渣碱度之间的关系式。

Avrami and Ozawa equations were used to analyze the experiment data in this study. Because the melting point of PBS is high and the mechanical properties are worse. In addition, the PTS is uncrystallized. Therefore, PBS and PTS were mixed to improve their properties. PBS containing 5wt% PTS can be able to reduce the crystallization performance, and make the polymer strength to enhance. Furthermore, the brittle fracture situation of PBS is also improved simultaneously.

本研究运用等温结晶分析使用的Avrami 方程式以及Ozawa 方程式，分析实验所得的数据，因为PBS 的熔点较高，机械性能较差，加上PTS 几乎不结晶的特性，因此将PBS 及PTS 以不同比例混掺的方式，对PBS 进行分析研究，结果发现，加入5wt% PTS的共聚酯能够明显的降低结晶性能，进而使聚合物的拉伸强度提高，同时脆性断裂的情况也得到改善。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。