对解决菱镁材料耐水性差等问题途径的探讨

在控制ＭｇＯ／ＭｇＣｌ２摩尔比、料浆的ｐＨ值，加入添加剂、拟定合理配方及养护工艺等方面作了反复实验。在实验基础上提出了解决菱镁耐水性差，返卤、泛霜等问题的一些有效方法，并在此基础上研制了一批模块样品，检测表明在改进上述性能方面取得了良好效果。     

用C还原法制备MgO晶须的热力学分析与实验验证

本文用热力计算了Ｃ还原ＭｇＯ在不同温度下平衡时Ｍｇ的分压，并计算给出生成ＭｇＯ晶须的热力学条件，根据理论计算结果设计了制备ＭｇＯ晶须的实验，对制备ＭｇＯ晶须进行了结构分析和形貌观察，证明了理论分析的正确性。     

含铈尖晶石的脱硫活性及性能研究

通过微反评价装置，结合ＸＲＤ和ＡＥＳ等分析手段，考察稀土ＣｅＯ２作为脱硫助剂Ｍｇ－Ａｌ尖晶石的活性组分对助剂脱硫活性的影响。实验结果表明，含氧化富镁镁铝尖晶石脱硫活性在８％时达到最大；不同方法引入由子的分布导致了脱硫活性的不同。８％ＣｅＯ２／ＭｇＡｌ２Ｏ４．ＭｇＯ助剂表面吸附的氧量最多。     

MgSiF_6对铝硅酸溶胶凝胶化的影响及其机理

实验研究了ＭｇｓｉＦ６对铝硅酸溶胶凝胶化的影响，并用２７Ａｌ、２９Ｓｉ核磁共振和ＸＲＤ研究了铝硅酸溶胶－ＭｇＳｉＦ６凝胶的物相组成及Ａｌ、Ｓｉ在其中所处的结构状态。结果表明：在铝硅酸溶胶中加入ＭｇＳｉＦ６会导致Ａｌ３＋离子从溶胶胶粒中溶出，溶胶胶粒结构的破坏，从而引起溶胶胶粒中Ａｌ／Ｓｉ比和Ａｌ、Ｓｉ所处结构状态的变化。ＭｇＳｉＦ６与从溶胶胶粒溶出的Ａｌ３＋、Ｎａ＋离子作用形成水溶性很低的ＮａＭｇＡｌＦ６，从而降低了液相中Ａｌ３＋离子的浓度，减弱了Ａｌ３＋对溶胶的絮凝作用，同时使得铝硅酸溶胶－ＭｇＳｉＦ６系统的Ｎａ、Ｆ溶出率降低。     

MgO－B_2O_3－SiO-2渣中含硼组分晶化动态研究

采用透射电子显微镜原位加热（ｉｎｓｉｔｕＴＥＭ）观察技术研究了非晶态ＭｇＯＢ２Ｏ３ＳｉＯ２渣中含硼组分动态晶化过程。实验结果表明，非晶态ＭｇＯＢ２Ｏ３ＳｉＯ２渣晶化时，首先发生分相，然后２ＭｇＯ·Ｂ２Ｏ３晶体析出，继而３ＭｇＯ·Ｂ２Ｏ３晶体析出。同时也发现电子束辐射对晶化过程有很大影响     

MgO—B2O3—SiO2渣中含硼组分晶化动态研究

采用透射电子显微镜原位加热（ｉｎ ｓｉｔｕ ＴＥＭ）观察技术研究了非晶态ＭｇＯ－Ｂ２Ｏ３－ＳｉＯ２渣中含硼组分动态晶化过程。实验结果表明，非晶态ＭｇＯ－Ｂ２Ｏ３－ＳｉＯ２渣晶化时，首先发生分相，然后２ＭｇＯ·Ｂ２Ｏ３晶体析出，继而３ＭｇＯ·Ｂ２Ｏ３晶体析出。同时也发现电子束辐射对晶化过程有很大影响。     

以Mg合成Mg3B2N4的研究

高温下，Ｍｇ可以夺得ｈ－ＢＮ中Ｂ原子生成ＭｇＢ２；在有氮气存在条件下，Ｍｇ更容易与ｈ－ＢＮ和Ｎ原子反应生成Ｍｇ３Ｂ２Ｎ４。生成Ｍｇ３Ｂ２Ｎ４的反应是由ｈ－ＢＮ晶粒表面向中心逐步进行的，生成的ＭｇＢ２Ｎ４阻碍了Ｍｇ３Ｂ２Ｂ４阻碍了Ｍｇ与ｈ－ＢＮ的接触，因此ｈ－ＢＮ难以全部参与反应。     

表面材质及Mg^2＋对CaCO3结垢的影响

以显微照像技术考察了流动硬水体系中负溶解性盐ＣａＣＯ_３在紫铜、黄铜、铝、铸铁和聚四氟乙烯加热表面的沉积形态，发现在惰性表面的沉积为无定形体，在硬金属表面的沉积为规则的结晶体。以紫铜作实验试件，研究了溶液中Ｍｇ~（２＋）对ＣａＣＯ_３结垢的影响，结果表明适量Ｍｇ~（２＋）可明显抑制结垢生长，说明Ｍｇ~（２＋）可作为一种方便的阻垢剂用于特定场合的钙垢控制。     

铁,镁,氟杂质对石膏聚晶形成的影响研究

用间歇实验方法，研究了在ＳＯ４２－不过量的条件下，Ｆｅ３＋、Ｍｇ２＋、Ｆ－三种杂质对石膏聚晶形成的影响。结果表明：Ｆｅ３＋或Ｍｇ２＋离子单独存在时石膏晶体宽度增加，Ｆ－离子单独存在时石膏晶体长度和宽度减小。Ｆｅ３＋、Ｍｇ２＋、Ｆ－三种离子都有利于聚晶的形成。但聚晶的外形差异较大，过滤性能也不同     

原料性能对镁碳耐火材料的显微结构和性能的影响

ＭｇＯ－Ｃ耐火材料的性能主要取决于ＭｇＯ，石墨和抗氧化剂如金属铝的性能，在本文中，论述了用不同粒度的ＭｇＯ，石墨和Ａｌ，并按重量配比制成不同的耐火材料，研究如强度，抗氧化性等与显微结构有关耐火材料的性能。     

Stability of granules of solid solutions of poly-pehnyleneterephthalamide

Conclusions Studies of starting solutions of PPTA in sulfuric acid and of granules obtained under pressrue at low temperature, and of granules stored in a hermetic package, have been carried out by the methods of differential thermal analysis, turbidity spectrum and viscometry.On granulation of a solidified PPTA solution, short-term storage of the granules in a hermetic package, or short contanct of the granulated mass with air, no appreciable change in melting point or of the intrinsic viscosity of the system takes place.Long storage of a granulated solution, even in hermetic packages, can lead to a considerable decrease in the melting point of the crystal solvates, caused by an increase in defectiveness of crystal structure under the effect of moisture.Translated from Khimicheskie Volokna, No. 3, pp. 25–26, May–June, 1986.     

水泥水化热测定方法综述

水泥水化热是中、低热水泥和核电工程用水泥的一项关键的技术指标。全球范围内测定水泥水化热的方法有溶解法、直接法/半绝热法、等温传导量热法三种。本文总结了中、美、欧相关方法标准,对其测试原理、仪器设备、试验过程等方面进行了比对,并对其在领域的应用做了简单的概括。     

气化给煤系统故障分析

气化给煤装置自投运以来,出现了气化煤仓堵煤、称重给煤机输送皮带因跑偏而损伤以及清扫装置故障频繁等问题,多次造成气化系统减负荷运行。通过对出现的各种问题进行分析,找到了产生这些问题的原因,并有针对性地采用配煤和改进清扫链等措施,使出现的问题得到了极大的改善。     

Coefficient of optimality of linings of heating units

The efficiency of the use of various refractories is estimated by an objective factor, namely, the coefficient of optimality of linings of heating units.Translated from Ogneupory, No. 12, pp. 26 – 27, December, 1994.     

Process of acceleration of filtration of viscose

Conclusions It is significant that the purification on a single passage of viscose through porous ceramic corresponds to the result of a two-stage filtration of it in industrial filter-presses with standard fillings.Kiev Combine. Kiev Technological Institute of Light Industry. Translated from Khimicheskie Volokna, No. 3, pp. 20–22, May–June, 1969.     

Semi-empirical equation of state of metals. Equation of state of aluminum

A semi-empirical equation of state for metals is described. Its capabilities are demonstrated by the example of the equation of state for aluminum. New experimental data are presented on the location of the isentrope of aluminum for unloading from the state at p = 229.71 GPa on the shock adiabat to an aerogel (SiO₂) of density 0.08 g/cm³. __________ Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 2, pp. 61–75, March–April, 2008.     

乙烯酮(双乙烯酮)下游产品废水的治理技术

乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。     

Exchange Behavior of Kaolins of Varying Degrees of Crystallinity

Particle-size fractions of several Georgia kaolins, which were prepared by sedimentation procedures, were examined from the standpoint of crystallinity, cation-exchange capacity, and surface area. Crystallinity was studied using X-ray techniques, exchange capacities were measured using the manganese saturation method, and surface areas were determined using glycerol adsorption techniques. A linear relation was obtained between surface areas and exchange capacities when areas were increased by decreasing the particle size or by changing from well-crystallized to poorly crystallized kaolins. In most cases, the empirically determined crystallinity ratios indicated a change in crystallinity with change in particle size, the crystallinity generally increasing with decreasing particle size in individual samples. Unlike, however, the relation noted for exchange, the crystallinity did not consistently correlate with area changes both among the various samples and within the various particle-size fractions of a single sample. These results suggest that the relatively high cation-exchange capacity of poorly ordered kaolins is more directly a result of high surface area with crystallinity playing, at most, a very minor role.     

塑料密度温度系数的测定

对HDPE、LDPE、PP、PS、ABS、EVA、PVC等常见塑胶粒的密度温度系数进行了测定。采用本文所测得的密度温度系数值,将常温下测得的密度值校正到指定温度下的密度值,这种方法可以满足塑料密度常规检验的要求。     

Theory of thermohydrodynamic instability of the front of filtration combustion of gases

Based on the filtration equations with account of heat transfer in the heating region, the problem of instability of small perturbations of the wave front of filtration combustion of a gas is solved. Expressions for the growth decrement and critical transverse size of a perturbation are obtained. The problem of the wave-front stability is solved with account of the macroscopic redistribution of filtration in the system. The solution includes macroscopic characteristics such as the transverse size, the width of the high-temperature zone, etc. A method is proposed for taking into account the influence of the characteristics of the system on the evolution of perturbations. It is shown that small deformation perturbations of the front always increase to a certain amplitude; their subsequent development— continuation of their growth or stabilization—is determined by the characteristics of the system. Translated fromFizika Goreniya i Vzryva, Vol. 35, No. 5, pp. 3–5, September–October 1999.