An investigation into the strength development of Wastepaper Sludge Ash blended with Ground Granulated Blastfurnace Slag

Wastepaper Sludge Ash (WSA) contains reactive components such as free lime (CaO), and less reactive and inert mineral species. When water is added to WSA some constituents hydrate faster than others, lime being the fastest giving high alkalinity to the solution. If the WSA is combined with Ground Granulated Blastfurnace Slag (GGBS) then the latter, activated by the raised pH, produces new minerals which will contribute further to the strength development of the paste. The kinetics of the hydration reactions and the possible ways of making lime a more effective contributor in activating other phases in the WSA–GGBS system are discussed.     

焦化用煤的灰成分对焦炭热性能的影响

对焦化厂主要煤种灰成分进行分析,并进行20kg小焦炉试验,检测焦炭热性能,得出煤灰成分对焦炭热性能的影响关系式。     

Fat free plain set yogurts fortified with various minerals

Seven different minerals (iron, magnesium, zinc, manganese, molybdenum, chromium and selenium) were incorporated separately into the yogurt mixes at 25% of their recommended dietary allowances of 15 mg, 420 mg, 15 mg, 5 mg, 200 μg, 200 μg, 70 μg, respectively. The various attributes studied on the yogurts were viscosity, syneresis, color/lightness (L*), body and texture, appearance and flavor. No significant (P>0.05) difference was observed for viscosity of the yogurts fortified with minerals when compared to the control. Yogurts fortified with iron, selenium and magnesium had better water-holding capacities compared to the control. No significant (P>0.05) differences were observed for flavor and appearance scores of the yogurts fortified with the minerals compared to the control. Fortification of yogurts with these minerals can be accomplished without adversely affecting product characteristics.     

焦家金矿床深部矿石工艺矿物学研究

焦家金矿床是著名的构造破碎蚀变岩型金矿床，其深部矿石的矿化特征与浅部有差别。本文重点对深部矿石的工艺矿物学性质进行了研究，查明了金银矿物及主要载金矿物的赋存状态，并分析了它们在不同磨矿粒度时的解离情况，为选冶生产提供了理论依据。同时也为其他研究者提供了一定的基础资料，对进一步认识焦家金矿床的深部地质特征具有较为重要的科学意义。     

余杭萤石矿选矿工艺的研究及生产实践

不同矿点矿石的选别试验研究表明，美女山和烂泥塘两矿点矿石因萤石嵌布粒度很细，难以获得较好选别指标，而将这两矿点矿石与其他易选矿石配矿选别，获得的萤石精矿达化工一级品标准，ＣａＦ２回收率大于９０％，使余杭萤石矿石资源得到充分利用。     

生物灰水泥固化体的性能改进研究

本文介绍了生物灰水泥固化体性能改进的实验研究结果。针对原固化体的空隙率和抗冲击性能较差，开展了以下三方面的研究：（１）水泥品种选择；（２）水泥外加剂的选择和固化配方研究；（３）水泥添加剂的选择及固化配方研究。     

香炉碗子金矿床地球化学特征及矿床成因讨论

通过对香炉碗子金矿床中土元素及硫，铅，氢，氧同位素地球化学研究表明，矿床中矿石与主要赋矿围岩次火山隐爆角砾岩，霏细岩，变辉绿岩的稀土与分模式和特征值相近，围岩提供了成矿物质来源；矿石硫同位素组成显示出硫主要来自深源岩浆源；矿石铅同位素组成显示出铅来源单一，来自上地幔或下地壳；氢氧同位素组成显示出成矿流体除岩浆水外，还有大气降水加入。     

百色油田油井结蜡及清防蜡处理

本文了滇黔桂百色油田的严重结蜡情况，清防蜡剂的筛选，使用筛选出的防蜡剂ＪＳ２进行油清防蜡处理的工艺方法和效果。自１９９０年１０月起，在百色油田各区块６２口油井采用不停产加入油套环空，加入后关井或在油套管间循环２－４小时，挤入油层等方法进行的清防蜡作业，除井温过低的一个井外，全部获得成功。     

双能γ射线穿透法测量煤灰分研究

本文推导了双能γ射线穿透法测量煤灰分的公式,为数据处理提供了数学依据。在较宽的灰分范围内,实验测量误差好于±1％。