丙烷脱氢制丙烯技术研究进展

介绍了丙烷脱氢制丙烯工艺的开发情况，根据反应器类型的不同，丙烷脱氢制丙烯工艺可以分为固定床工艺、移动床工艺和流化床工艺，其中固定床工艺中的Catofin工艺和移动床工艺中的Oleflex工艺得到了广泛应用。随着装置规模化、大型化的不断推进，流化床工艺受到了各大机构的青睐，FBD-3、FCDh、K-PRO^TM和ADHO等工艺相继涌现，为增产丙烯提供了可靠的支撑。未来可以通过采用绿色环保的非贵金属催化剂和新型反应器，克服现有丙烷脱氢工艺存在的问题，降低丙烯生产成本和碳排放，提高装置运行稳定性。     

热法磷酸与湿法磷酸结合生产三聚磷酸钠质量与能耗探讨

热法磷酸工艺生产五钠能耗较高，湿法磷酸工艺生产五钠工艺较低长，投资额大，质量稍次，本文将热法与湿法工艺结合，生产出较高质量的产品．同时简化工艺，充分利用工艺中产生的热能，大大降低生产成本，具有投资省，质量高之优点。     

银法甲醛装置新工艺组合

我国甲醛经过几十年的生产实践，设备不断改进，工艺日臻成熟。目前，工艺上主要运行的有银法工艺和铁法工艺。其中银法工艺在我国甲醛装置中又占主导地位。铁法甲醛工艺单耗低，使用周期长，产品中醇含量低，但是投资大，能耗相对较高，催化剂昂贵，又不能再生使用，有其优点     

论中国传统陶艺的工艺美

中国传统陶艺之美，从美术造型，装饰技法角度已有许多论述，但仅此是不全面的；从坯釉工艺，烧成工艺，装饰工艺和角度来认识陶艺作品精工和精微的工艺美尚不够深入。该文从工艺技艺角度论述中国传统陶艺的工艺美。     

吸收致冷工艺研究之（Ⅲ）

对如何合理使用低位余热，保证吸收致冷装置的经济运行作进一步探讨，提出了吸收致冷与压缩致冷的联运工艺，阐述了联运工艺的特点和优越性；将吸收致冷工艺推广应用到卤水脱除硫酸根工艺，将吸收致冷工艺与蒸发工艺相结合，认为应用吸收致冷工艺在保证盐水质量的前提下，可以实现全卤制碱，且消耗低，运行经济，设备简单。     

焊接工艺评定覆盖范围图示法

介绍一种焊接工艺评定覆盖范围示意图，该图可反映制造厂已做过的焊接工艺，评定的覆盖情况，有助于专业人员分析，归纳，整理焊接工艺评定文件，经济合理地制定焊接工艺评定方案，也可供监检人员审查工艺评定时使用。     

SCRIMP工艺在玻璃钢天线罩上的应用前景

介绍了SCRIMP工艺的工作原理，尝试将该工艺应用于玻璃钢天线罩的成型，并与玻璃钢天线罩的手糊工艺进行了对比，分析了其应用的技术优势，主要内容包括原材料、设备和工艺流程。重点分析了SCMMP工艺成型玻璃钢天线罩的工艺特点和关键技术，并预测了应用前景。     

煤气化制合成气工艺路线探讨

介绍了谢尔煤气化工艺和德士古气化工艺，从多方面对两种工艺的特点进行了比较并得出结论，Shell工艺在总体上比Texaco工艺具有一定的优势，建议合成氨煤气工序采用Shell煤气化工艺（SCGP）。     

水合萜二醇结晶一步法生产高纯度松油醇

本文通过对松油醇生产过程脱水工艺的试验研究，在工艺上有新的突破，利用共沸技术，有机地将原回流脱水工艺改为脱水蒸馏工艺，从而缩短了工艺流程，节约了设备投资、物料和能源消耗，大大提高了α-松油醇的得率，生产出高质量的松油醇产品，为国内香料行业也提供了优质的香料型产品。该技术全工艺范围内无废料，充分地利用了松节油资源。该技术的突破，改变了传统生产香料松油醇工艺，使其发挥最大的效益。为香料行业生产高含量松油醇的脱水工艺开辟了新的技术工艺。     

叔胺—氨法合成亚磷酸三甲酯工艺的改进

从工艺过程上分析了原水洗工艺存在的废液量大、后处理困难等弊端，将单釜水洗工艺改为双釜串联过滤工艺。改进后，无废液产生，产品质量稳定，不仅降低了生产成本，而且大大提高了生产效率和经济效益。对现行工艺的改造具有指导意义。     

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。     

几种乙炔加压设备性能的比较

阐述并比较了几种加压设备在乙炔加压清净过程中的性能和特点。     

三种煤样燃烧热的测定

本文通过三个厂家提供的三种煤样燃烧热的测定,由测定结果综合得出3号煤样燃烧最完全、燃烧热也最大,是三个煤样中最好的一种。     

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.     

小议汽车涂装工艺设计对涂装成本的影响

论述了涂装工艺设计对涂装设备投资、涂装生产成本的影响。     

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。     

Measurement of the gradient of viscosity with composition of mixtures of non-ideal gases

A perturbation viscometer is a differential capillary viscometer that measures the logarithmic viscosity gradient of the viscosity-composition curve for gas mixtures. Measurements are made at different gas mixture compositions. Integration of the logarithmic viscosity gradients measured over the full composition range gives the mixture viscosity relative to the viscosity of one of the pure components of the gas mixture. This method is attractive because, for measurements of equal precision, integration of the gradients is potentially an order of magnitude more precise than measurement of the viscosities directly. It can also work at high and low temperatures and perhaps high pressures.The perturbation viscometer has been used to make measurements on ideal gas mixtures at ambient and elevated temperatures. The situation is more complicated when the gas mixtures are non-ideal. Extra effects due to density differences, molar volume change on mixing and differential thermal expansion may be measured in addition to the desired viscosity change producing systematic errors in the results. Thus, a more sophisticated apparatus is required. The standard perturbation viscometer has been modified to separate out the extra effects to permit measurement of the true change in viscosity. In addition, the theoretical operation of the modified apparatus has been revised to account for the design changes to permit calculation of the viscosity-composition profiles from the results.The apparatus has been tested using helium-HFC-125 mixtures and two new viscosity-composition profiles are presented for these mixtures at 23 and . Internal consistency tests have been used to confirm that the data produced are of high quality with an estimated uncertainty in the viscosity ratio data at of 0.9% and at of 1.5%.     

Calorimetric and Computational Study of Enthalpy of Formation of Diperoxide of Cyclohexanone

A thermochemical rather simple experimental technique is applied to determine the enthalpy of formation of Diperoxide of ciclohexanone. The study is complemented with suitable theoretical calculations at the semiempirical and ab initio levels. A particular satisfactory agreement between both ways is found for the ab initio calculation at the 6–311G basis This set level. Some possible extensions of the present procedure are pointed out.     

塔设备改造选型的分析

就当前扩产增容中塔设备设计和改造时板式塔和填料塔的选型问题加以分析。在评述目前国内常用的几种塔板和新型填料之后，着重介绍一种新型塔板（导向梯形浮阀塔板）和一种新型填料（波环填料——乾隆帕克）。     

Effect of degree of deacetylation of chitin on the properties of chitin crystallites

In the present article, chitin from crab shell was systematically deacetylated using a NaOH treatment with control of the reaction time. The degree of deacetylation, monitored using solid-state NMR, revealed that the reaction was pseudo-first order. Based on this, swollen and NaOH-saturated particles are proposed as the reaction system. The weight loss of the partially saponified and neutralized samples after HCl hydrolysis increased linearly with the degree of deacetylation. The crystallinity of the samples was found to increase after acid hydrolysis. According to conductimetric titration, the surface charge density of the crystallites, after acid hydrolysis, was found to increase with base treatment time. The effect of surface charge on the formation of a chiral nematic phase, due to the rodlike nature of the crystallites, was explored. These results show that because the contribution of charged particles to the ionic strength was significant the double layer compression was affected, especially since the surface charge density was close to the Manning limit. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 65:373–380, 1997