伯胺N_(1923)萃取硝酸研究

研究了N_(1923)萃取硝酸的性能,考察了溶剂对萃取平衡的影响,用饱和法、斜率法和红外光谱法确定了萃合物组成和萃取机理。     

蒸汽吞吐井生产能力的预测及其生产方式的确定

本文论述了预测蒸汽吞吐并各生产阶段的油井生产能力、选择生产方式和确定合理的工作制度的方法。生产能力预测计算中考虑了厚油层中的蒸汽超复现象、油水粘度随温度的变化及油水渗透率随温度和饱和度的变化。用这种方法可以预测各生产阶段的平均地层压力、平均地层温度及相应的生产能力。在预测生产能力的基础上,采用油井生产系统的节点分析方法,预测自喷期油井生产动态和转抽时机,并做出抽油参数设计和各阶段不同抽汲参数下的生产动态的预测,以选择各生产阶段油井的合理工作制度。文中给出计算实例。     

The electrical conductivity of H2O at 0.21– 4.18 GPa and 20–350°C

The electrical conductivity of H₂O in solid and liquid phases has been measured at 0.21–4.18 GPa and 20–350°C. The results indicate: (I) different phases of H₂O in solid have different relations between electrical conductivity and temperature and pressure. The conductivity changes continuously with temperature, but discontinuously with the pressure between 2.11 and 2.58 GPa, which corresponds to the transforming pressure between ice (VI) and ice (VII);(II) the amductivity of H₂O in liquid all increases with temperature and pressure, but there are discontinuities at pressures between 0.57 and 0.9 GPa, and between 2.11 and 2.58 GPa, which are also consistent with the polyrnorph of ice (ice (V), ice (VI) and ice (VII)). This reflects that H₂O in liquid at different pressures has quite different properties of electron chemistry. It is probably the important reason that causes the layers with high electrical conductivity and low velocity in the earth’s ceust and upper mantle.     

Ultrahigh-pressure (4.5–5.5 GPa) experimental research on pyroxene-garnet transition and its significance

Conclusions The transition from natural Al-enstatite to garnet and Al-poor pyroxene has taken place under the condition of about 1000°C and 4.5–5.5 GPa, and new phases of garnet and corundum have formed when 15% Al₂O₃ was added to the initial natural Al-enstatite. This experimental result has explained the ultrahigh pressure (3.5–5.0 GPa) and relatively low temperature (< 1000°C) genesis of the ultramafic rock of high-pressure metamorphic zone in Dabieshan-northern Jiangsu-Jiaodong and of red corundum garnetite coexisting with garnet peridotite. From the genetic mineralogy, petrology andP-T equilibrium conditions of garnet peridotite of the high-pressure metamorphic zone, kimberlite and Cenozoic basalt and the ultrahigh pressure experimental result, it is inferred that the upper mantle garnet peridotite is transformed with the increase of depth from Al-rich pyroxene garnet peridotite (80–120 km) to Al-poor pyroxene garnet peridotite (greater than 120–150 km).     

积分约束下多方线性微分追捕对策

本文继文献[3]之后,又对多方线性微分追捕对策给出一些完成追捕的充分条件。     

一类矩阵最佳逼近问题

本文讨论文给出的矩阵的最佳逼近问题,证明了最佳逼近解的存在、唯一性,导出了最佳逼近解的表达式和计算方法,并以数值例子说明所给方法比文[1]的计算量小。     

粉煤灰的活化

提出一种掺入Ｃａ（ＯＨ）２的少量Ｎａ２ＳｉＯ３活化粉煤灰的方法,探讨了经机理和各种条件对粉煤灰活化速度的影响。通过ＳＥＭ,ＤＴＡ,ＸＲＤ,碱吸收和浆体强度试验研究了活化灰的结构与性能。结果表明：活化灰早期碱吸收能力和火山灰活性比原状偻煤灰显著提高。     

金属尾矿建筑微晶玻璃晶核剂的研究

利用理论与实验相结合方法,从晶格常数,晶核剂和低共熔点等方面讨论了晶核剂选择,玻璃主成分确定等问题,用差热分析,Ｘ射线衍射等测试方法,研究晶核剂对玻璃态析晶和结晶形态的影响,研究表明,金属尾矿制取建筑微晶玻璃不但可行,而且复合晶核剂能有效地促进ＣａＯ－ＭｇＯ－Ａｌ２Ｏ３－ＳｉＯ２系统玻璃在较低温度下即开始晶化,且均以透辉石为主晶相,尾矿掺量可达６５％以上。