四氯化碳作为反应原料的研究进展

四氯化碳是蒙特利尔公约限制应用的消耗臭氧层物质之一，目前，它作为氟里昂的生产原料以及在清洗和化工过程助剂等方面的应用正逐渐被淘汰，根据蒙特利尔公司，四氯化碳作为化工原料是可以继续使用的，因此，开发它的原料用途和技术对于平衡过剩的四氯化碳产品，保护臭氧层具有重要的现实意义，介绍了国内外四氯化碳转化技术的研究进展。     

冶炼铅锌废渣配料对湿法回转窑生产的影响

研究了冶炼铅锌废渣配料对湿法水泥生产的影响。研究结果表明，冶炼铅锌废渣配料，在相同水分情况下，可使生料浆流动度增加2－3mm，生料易烧性较好；冶炼铅锌废渣配料不仅有利于A矿的形成与发育，促进A矿的快速生长，增加A矿含量，提高熟料烧成质量，而且有利于延长烧成带镁铬砖的寿命。     

提高联合企业中化肥装置运行效益的措施

近几年来，化肥市场持续疲软，国内化肥生产厂的生产经营都面临着不同程度的困难，尤其以石脑油为原料的大化肥装置，因原料和燃料价格的上涨，都出现了严重亏损，笔者结合多年来的生产实践，提出依托企业联合优势，做好原料和燃料的优化，努力降低生产成本，同时通过外供氢气和液氨以分流产品，是提高化肥装置运行效益的重要措施之一。     

Shell工艺改沥青原料后碳黑回收方案分析

叙述了Shell工艺原料由渣油改为脱油沥青后,碳黑回收方案的改进要求及试验情况,并对几种方案 进行了适应性对比分析。     

CHP氧化丙烯制环氧丙烷中原料杂质对Ti-HMS催化剂性能的影响

在以钛硅分子筛（Ti-HMS）为催化剂、过氧化氢异丙苯（CHP）为氧化剂,氧化丙烯制环氧丙烷反应中,研究了原料杂质对催化剂环氧化性能的影响。研究发现,原料CHP溶液中小分子的有机酸、苯酚、丙酮以及水等极性物质对催化剂性能会产生不利影响,它们不仅影响催化剂的稳定性,对催化剂的活性和产物选择性也非常不利。当采用适当方法对CHP溶液进行处理,脱除其中的有机酸、苯酚和水等杂质后,Ti—HMS催化剂的催化性能得到明显改善。     

冶炼烟气制酸中清洁生产的过程分析

介绍了冶炼烟气制酸行业的清洁生产现状。着重分析了冶炼烟气制酸过程中的污染物成因及热能利用情况,针对性提出了减少污染物外排、提高热能利用与节能的方案,为相关企业实现清洁生产的目标提供了参考。     

冶金过程多组分体系同时反应的动力学模型及应用

将钢铁冶金中的多组分同时反应作为一个综合的反应体系进行研究,考虑其中各反应间的影响. 根据冶金热力学和动力学原理建立多组分渣-金-气反应体系同时反应动力学模型,编制计算程序,得出成分对时间的变化曲线,并用含Fe-Cr-Mn-C的渣-金反应体系的实验进行了验证. 结果表明,金属液中C和Mn组分的计算浓度与实测值基本吻合,Cr的计算浓度与实测值的相对误差在9.1%以内. 在直流电弧下熔炼存在大气通过渣层向金属液的传氧现象,其数值与大气向钢液直接传氧的数值相同. 采用模型方法能较好地解释过程中的反应现象,揭示过程的机理.     

Development and Scale-up of Aqueous Surfactant-Assisted Extraction of Canola Oil for Use as Biodiesel Feedstock

Aqueous surfactant-assisted extraction (ASE) has been proposed as an alternative to n-hexane for extraction of vegetable oil; however, the use of inexpensive surfactants such as sodium dodecyl sulfate (SDS) and the effect of ASE on the quality of biodiesel from the oil are not well understood. Therefore, the effects on total oil extraction efficiency of surfactant concentration, extraction time, oilseed to liquid ratio and other parameters were evaluated using ASE with ground canola and SDS in aqueous solution. The highest total oil extraction efficiency was 80 %, and was achieved using 0.02 M SDS at 20 °C, solid–liquid ratio 1:10 (g:mL), 1,000 rpm stirring speed and 45 min contact time. Applying triple extraction with three stages reduced the amount of SDS solution needed by 50 %. The ASE method was scaled up to extract 300 g of ground canola using the best combination of extraction conditions as described above. The extracted oil from the scale-up of the ASE method passed the recommendation for biodiesel feedstock quality with respect to water content, acid value and phosphorous content. Water content, kinematic viscosity, acid value and oxidative stability index of ASE biodiesel were within the ASTM D6751 biodiesel standards.     

机械激活矿渣水泥

用于式高能振动磨机械激活矿渣（炉渣和／或硅灰）水泥。研究表明：经机械激活后．矿渣水泥的颗粒粒度降低，颗粒的比表面积增大。在掺合了矿渣的水泥中硅微粒聚团经机械激活后可有效地分散并作用于水泥中．使矿渣水泥的水化反应括性增强，促进水泥水化反应，降低水泥制品的孔隙度．从而可以提高水泥制品的力学性能。通过Fourier变换红外光谱和核磁共振等方法分析了机械激活作用的机理。     

A numerical model to predict the powder–binder separation during micro-powder injection molding

The micro-powder injection molding (micro-PIM) process has the potential to bridge the gap between the design and manufacturing of micro-components that are often used in small and handy devices. Numerical modeling helps to analyze and overcome various difficulties of micro-PIM. In the present work, a numerical model is developed to predict the powder–binder separation (a common defect in PIM and especially severe in micro-PIM) during the injection of an alumina feedstock. A powder–binder separation criterion is proposed dealing with applied injection pressure and friction force between the powder and binder. An indirect comparison of feedstock travel time between two locations is used to validate the model. The predicted segregation from the simulated result is supported by a qualitative experimental measurement. The developed model can be used to optimize injection parameters to get a defect-free product.