浸渍剂沥青

针对炭素材料孔隙结构特点,提出了炭素生产用浸渍剂沥青的质量要求,着重讨论了浸渍剂沥青所含杂质对浸渍效果的影响,并介绍了国内外炭素生产用浸渍剂沥青发展状况。     

浸渍过程沥青喹啉不溶物存在状态对石墨电极生产的影响

在石墨电极浸渍生产过程中,浸渍沥青喹啉不溶物含量及存在状态决定和制约浸渍生产质量.本文通过对现有浸渍生产状况的分析,探讨了浸渍沥青喹啉不溶物在浸渍生产控制各环节中的存在形态及对电极浸渍生产质量的影响.     

浸渍剂沥青

针对炭素材料孔隙结构特点,提出了炭素生产用浸清剂沥青的质量要求,着重讨论了浸渍剂沥青所含杂质对浸渍效果的影响,并介绍了国内外炭素生产用浸渍剂沥青发展状况。     

影响浸渍质量问题的探讨

在长期的实际生产中，关于对浸渍质量的影响人们多集中于工艺参数上，本文通过试验的形式反映了生产中影响浸渍质量的一些方面，并探讨了浸渍剂沥青在生产中对浸渍质量的影响。     

影响浸渍质量问题的探讨

在长期的实际生产中，关于对浸渍质量的影响人们多集中于工艺参数上，本文通过试验的形式反映了生产中影响浸渍质量的一些方面，并探讨了浸渍剂沥青在生产中对浸渍质量的影响。     

浸渍沥青性能及工艺研究

比较了用几种浸渍沥青和上海沥青作浸渍沥青生产的各工序制品的性能，考察了各种浸渍沥青的使用特性，探讨了电极生产厂对浸渍沥青的合理使用方法。     

试论减少浸渍坯表面黏附沥青的途径

在浸渍生产过程中,浸渍坯表面经常出现沥青"反渗"现象,这一现象直接影响到浸渍制品的质量。同时增加了生产过程浸渍剂的消耗,导致工序成本增加,污染了环境。本文分析了浸渍坯表面黏附沥青的原因、危害,并提出相应的解决途径。     

液体加压浸渍过程中浸渍沥青烟气存在状态及处理

浸渍生产过程是浸渍沥青在一定温度压力作用下浸入浸渍电极孔隙的过程,浸渍沥青受热分解挥发形成的浸渍沥青烟气是浸渍沥青另一种表现形式,可应用于浸渍生产。浸渍生产操作过程中我们通过对浸渍沥青烟气实施冷凝降温利用等方法,提高浸渍沥青烟气处理能力和浸渍真空处理效率。     

卧式浸渍罐端头与浸渍罐门底部残存浸渍沥青原因及处理

相对于其它浸渍装置卧式液体加压浸渍系统在质量水平,操作控制等方面有明显优势,但是卧式浸渍罐端头与浸渍罐门底部本身性质使得每一浸渍循环都残存一定量的浸渍沥青,处理残存浸渍沥青时,易造成浸渍罐端头与浸渍罐门配合障碍,严重影响浸渍生产,我们认为,浸渍罐端头与浸渍罐门底部动配合间添加橡胶圈类似材料是目前解决浸渍罐端头与浸渍罐门残存浸渍沥青有效方案。     

浅论低喹啉不溶物的浸渍沥青性能

本文对日本三菱浸渍沥青(以下简称三菱浸渍沥青)和鞍钢中温沥青的基本性能、粘度及热失重等进行了分析测定。并对这两种沥青进行了浸渍效果试验。结果表明:低喹啉不溶物的三菱渍浸沥青比鞍钢中温沥青浸渍效果好。     

煤焦油沥青的净化和电极浸渍剂生产

石墨电极生产专用浸渍剂绝大部分是用煤沥青经净化、热聚合反应等过程而制得 ,浸渍剂沥青在我国目前还处于开发试制阶段 ,本文介绍了我国浸渍剂沥青开发试制进展情况和几种浸渍剂沥青的生产工艺 ,简明分析了每一种生产工艺的特点。根据国内外浸渍剂沥青的生产和使用情况 ,对加快我国浸渍剂沥青研制尽早实现工业化生产提出了建议     

浸渍剂沥青的制备方法

介绍了我国浸渍剂沥青开发试制进展和几种浸渍剂沥青的生产工艺,简明分析了每一种生产工艺的特点。根据国内外浸渍沥青的生产和使用情况,对加快我国浸渍剂沥青研制,尽早实现工业生产提出了建议。     

电极浸渍沥青的开发研究和应用前景

以中温沥青为原料,选择价廉易得的焦化溶剂,采用较为简便的净化工艺,制得达到日本同类产品质量指标的电极浸渍沥青,并展望了该产品的应用前景。     

二次焙烧温度制度对电极焙烧结焦率的影响

为提高炭──石墨制品的质量，炭素生产采用一次浸渍和二次焙烧（或多次浸渍多次焙烧）生产工艺，隧道窑作为先进的二次焙烧技术具有焙烧温度低、周期短、能耗少等特点，是生产高质量电极重要的工艺技术装备，其焙烧温度制度是影响浸渍电极焙烧质量的关键因素．概述了浸渍坯料二次焙烧温度制度和沥青结焦率的关系。     

Observed changes in pitch properties aged at elevated temperatures

Several coal tar and petroleum-based binder and impregnating pitches have been aged in an inert atmosphere at 185°C for periods up to four weeks. The effect of the measured changes in the pitch properties with respect to the processing and properties of graphite artifacts is discussed.     

溶剂沉降法制备浸渍剂沥青

通过溶剂沉降法脱除各种原料煤沥青中的喹啉不溶物（QI）,再用减压蒸馏去除溶剂,得到浸渍剂沥青产品,探讨了脱除喹啉不溶物的操作条件,包括溶剂配比、沉降温度、沉降时间、减压蒸馏温度以及对不同原料制备的浸渍沥青产品性能比较,最后以曲靖中温沥青为原料制得了软化点83 ℃,喹啉不溶物0.084%,结焦值49.32%的浸渍剂沥青产品。     

Development of mesophase pitch derived high thermal conductivity graphite foam using a template method

A simple and inexpensive method is described for preparing high thermal conductivity graphite foam by impregnating a coal tar pitch based mesophase pitch into a substrate polyurethane foam template. Mesophase pitch impregnated polyurethane foam was converted into graphite foam by several heat treatments in air as well as in an inert atmosphere. Scanning electron microscope images show the retention of an excellent open pore structure despite volume shrinkage of over 50%. The graphite foam prepared by this sacrificial template method is found to possess a thermal conductivity of 60 W/m K with a compressive strength in the range of 3.0–5.0 MPa. The X-ray diffraction pattern shows an interlayer spacing (d₀₀₂) of 0.3388 nm at a heat treatment temperature of 2400 °C. Different concentrations of slurries of mesophase pitch in water were used in combination with substrate foams of different densities to prepare graphite foams of density in the range 0.23–0.58 g cm⁻³. The specific thermal conductivity of the carbon foam with a low density of 0.58 g cm⁻³ is found to be higher than that of copper metal traditionally used in thermal management applications.     

焦油沥青净化和浸渍剂沥青的生产

介绍了我国浸渍剂沥青开发情况和几种浸渍剂沥青的生产工艺和特点。根据国内浸渍剂沥青的生产和使用情况,提出了加快浸渍剂沥青工业化生产的建议。     

Influence of granular carbons on pitch properties

This paper deals with the study of the variation of properties of four pitches (a commercial impregnating coal tar pitch, an air-blown and two thermally treated pitches) when mixed with four granular carbons (anthracite, graphite, green petroleum coke and foundry coke). As a first step, optical microscopy was used to determine the distribution of the pitch among the granular carbons. The anthracite seems to attract the primary quinoline insolubles present in the commercial and thermally treated pitches. This allows the mesophase spheres to coalesce at unusually low temperatures during the mixing process. In general, the toluene insoluble content of the pitch showed a significant increase after mixing with the granular carbons. This is an indication of the interactions between the different granular carbons and some compounds present in the pitches. Analytical techniques like size exclusion chromatography and differential scanning calorimetric analysis were used in order to obtain information about the characteristics of the components of the pitches that interact with the different granular carbons and their effect on pitch properties. Graphite seems to interact preferentially with the larger molecules whereas the green petroleum coke acts on a wider molecular range.