您的位置: 专家智库 > >

国家自然科学基金(50764006)

作品数:11 被引量:40H指数:2
相关作者:陶东平方民宪周兰花曾富洪蒲霞更多>>
相关机构:昆明理工大学攀枝花学院更多>>
发文基金:国家自然科学基金云南省应用基础研究基金更多>>
相关领域:冶金工程金属学及工艺理学化学工程更多>>

文献类型

  • 11篇期刊文章
  • 1篇会议论文

领域

  • 9篇冶金工程
  • 2篇金属学及工艺
  • 2篇理学
  • 1篇天文地球
  • 1篇化学工程
  • 1篇自动化与计算...

主题

  • 6篇ACTIVI...
  • 3篇热力学
  • 3篇活度
  • 2篇热力学模型
  • 2篇组元活度
  • 2篇OXIDE
  • 2篇PREDIC...
  • 2篇REGULA...
  • 2篇SYSTEM...
  • 2篇BINARY
  • 2篇CALCUL...
  • 1篇冶金
  • 1篇冶金熔体
  • 1篇液态
  • 1篇液态合金
  • 1篇熔渣
  • 1篇碳热还原
  • 1篇铁矿
  • 1篇热还原
  • 1篇钛磁铁矿

机构

  • 5篇昆明理工大学
  • 1篇攀枝花学院

作者

  • 5篇陶东平
  • 2篇侯彦青
  • 1篇蒲霞
  • 1篇俞小花
  • 1篇曾富洪
  • 1篇田林
  • 1篇侯明
  • 1篇周兰花
  • 1篇方民宪
  • 1篇谢刚
  • 1篇杨红卫
  • 1篇王嵩

传媒

  • 4篇Journa...
  • 3篇昆明理工大学...
  • 3篇Acta M...
  • 1篇稀有金属

年份

  • 1篇2015
  • 2篇2012
  • 1篇2011
  • 5篇2010
  • 1篇2009
  • 2篇2008
11 条 记 录,以下是 1-10
排序方式:
A novel molecular interaction chemical model for silicate melts
2010年
A novel molecular interaction chemical model (MICM) for silicate melts has been suggested based on statistical thermodynamics. It can simultaneously predict activities of all components in the CaO-FeO-SiO2 and CaO-Al2O3-SiO2 melts using only four binary parameters for each binary melt which can be determined by fitting activities of its two components. The results indicate that the predicted values of activity of FeO and SiO2 are in good agreement with the experimental data at 1823 K and 1873 K, and those of CaO, SiO2 and Al2O3 are in reasonable agreement with the graphical integration data of the Gibbs-Duhem equation. This shows that the model is effective in which the physical interaction plays a main role and the chemical one does the auxiliary function.
Dongping TAO
关键词:ACTIVITYPREDICTIONSILICATES
Activity Calculation by Application of Sub-Regular Solution Model in Binary Oxide Systems被引量:1
2012年
To confirm sub-regular solution model valid for predicting the activity of component in binary oxide systems, seven systems in the whole concentration and twelve systems presenting saturation concentration have been studied. The total average relative errors of component 1 and 2 are 3.2 % and 4.1% respectively by application of the sub-regular solution model into the systems within the whole concentration. However, the total average relative errors are 16 % and 1088 % in the systems presenting saturation concentration. The results show that sub-regular solu- tion model is not good for predicting the systems presenting saturation concentration, especially for the systems con- taining acidic or neutral oxide. The reason may be that the influence of the two types of oxide on the configuration is greater in binary oxide systems. These oxides can be present in the form of complex anion partly, Si-O, Al-O, Ti-O and so on, for example (SiO4)4-. That is contrary to sub-regular solution model which is supposed that the oxide systems consist of cation and O2-. But compared with regular solution model and quasi-regular solution model, sub- regular solution model is closer to the characteristics of actual solution and the calculated results are superior.
HOU Yan-qingXIE GangTAO Dong-pingLI Rong-xingYU Xiao-hua
Application of Modified Quasi-Regular Solution Model to Binary Metallurgical Molten Slag Systems
2010年
Modified quasi-regular solution model has been available based on the sub-regular solution model and quasiregular solution model in this article. The three parameters of this model are set by the computer-aided analysis based on the experimental data of activity at two different temperatures. Seven binary molten slag systems in the whole concentration are calculated by application of the model and the average relative error is within 10%. Ten binary molten slag systems presenting saturation concentration are also calculated, but the average relative error is bigger, especially for the systems containing acidic oxide and neutral oxide. The results show that the calculated results are superior to those calculated by application of regular solution model, sub-regular solution model and quasi-regular solution model.
HOU Yan-qing XIE Gang TAO Dong-ping YU Xiao-hua
关键词:ACTIVITY
Activity Calculation in Complex Metallurgical Molten Slag Systems Based on Regular Solution Model
2012年
The activity of FetO is very important in ironmaking and steelmaking process. In order to predict the activ- ity of Fe, O and optimize the operation conditions in ironmaking and steelmaking process, by application of regular so lution model in molten slag systems, FeO-Fe2 O3-SIO2 ternary system, FeO-Fe2 O3-SiO2-CaO and FeO-Fe2 O3-SiO2-NiO quaternary systems have been studied by the chemical equilibrium between H2/H20 gas mixture and liquid slag con tained in solid iron. The values of interaction energy between cations concerning steelmaking slags have been deter- mined by application of ferric-ferrous iron equilibrium and iron-ferric iron equilibrium. And then the activity of Fe, O can be calculated. The results show that the relative error is 3.9% in FeO-Fe203-SiO2 system and 18% in FeO- Fe203-SiO2 CaO system. The prediction of activities of FetO in the systems are in good agreement with the measure- ments and the regular solution model is valid for predicting the activity of FetO in complex molten slags systems. The activity of Fe, O in FeO-Fe20a-NiO system have not been tested presently, and the calculated result can not be assessed.
HOU Yan-qing,XIE Gang,TAO Dong-ping,YU Xiao-hua,LI Rong-xing (Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China)
An Estimation of Component Activity of Vanadium-bearing Liquid Iron and Transition Temperature of Vanadium Oxidization Using MIVM被引量:1
2015年
The component activity of Mn in Fe-C-Mn system as well as the component activities of C and Si in Fe-C-Si system was predicted by applying the pseudo-multicomponent approach of the molecular interaction volume model (MIVM) and the Wagner interaction parameter formalism (WIPF) respectively. The average relative errors between the predicted values of MIVM and the experimental data for the three components were 4.5 0%, 17.0% and 13.0 %, respectively, and those between the calculation results of the WIPF and the experimental data were 18.0K for Mn, 9.0% for C and 27.0% for Si. The results indicated that the MIVM method could better predict the component activity of carbonaceous iron-based solution. Based on the data in an actual blowing process, the MIVM method was applied to predict the component activities of C and V as well as the transition temperature of vanadium oxidization (TTVO) in Fe-C-V-Si quaternary iron-based solution, and a comparative analysis of the predictions against the ex- perimental data was carried out, with their average relative errors being 24.0% for C, 7.3% for V and 1.0% for TTVO respectively. On that basis, the TTVO at Panzhihua Iron and Steel (Group) Co. , Ltd. was estimated by the MIVM method and an expression that the TTVO changed with composition and temperature of iron solutions was obtained by multiple linear regression method. The research results showed that the estimated values were in good agree- ment with the practical data.
Ya-yu LIZhen-nan LIUDong-ping TAO
关键词:ACTIVITY
二元液态合金体系组元活度的热力学一致性检验被引量:2
2008年
根据所查文献中大量液态合金组元活度的实验数据,采用科学计算软件及方法,获取了这些数据的拟合曲线,并应用Gibbs-Duhem方程的α函数法对30个二元液态合金体系组元活度数据进行检验;计算出二元系组元的活度值,与实验值进行比较,得出了30个二元液态合金体系两组元的总平均相对误差分别为1.60%和1.70%,并补充了12个体系的无限稀活度系数;表明应用Gibbs-Duhem方程的α函数法可以很好的检验实验数据的热力学一致性,并准确地计算出组元的无限稀活度系数.
王嵩陶东平杨红卫
关键词:液态合金热力学冶金熔体
改进的准正规溶液模型被引量:2
2010年
基于亚正规溶液模型和准正规溶液模型组合得到改进的准正规溶液模型,将正规溶液模型的参数Ω表示为浓度和温度的函数,需要2个温度下组元活度的实验数据拟合出模型的3个参数.应用该模型计算了6个全浓度二元熔渣体系,平均相对误差在5%以下,与实验数据吻合;4个存在饱和浓度的二元熔渣体系,平均偏差较大,与实验数据吻合不好,但与正规溶液模型比较,计算结果较优.
侯彦青陶东平
关键词:活度熔渣热力学模型
修正的似化学模型在SiO2-CaO-MnO熔渣体系中的应用被引量:2
2010年
将修正的似化学模型应用于估算SiO2-CaO-MnO(1823 K,1773 K)熔渣体系组元MnO的活度。通过非对称近似计算得到该组元活度值aMnO,并与实验数据比较,所获得的平均相对误差和标准偏差分别为:SM*nO.1823K=±22%,S*MnO.1823K=±0.1040和SM*nO.1773K=±41%,SMnO.1773K=±0.1561与采用Pelton键能参数近似计算值基本一致,这表明该模型的估算值在熔渣实验误差范围内(10%~30%)与实验值较吻合。因此,在二元参数近似下,利用该模型估算三元熔渣组元活度是可行的。
侯明陶东平
关键词:活度热力学模型炉渣
PREDICTION OF THE MIXING ENTHALPIES OF BINARY LIQUID ALLOYS BY MOLECULAR INTERACTION VOLUME MODEL被引量:2
2008年
The mixing enthalpies of 23 binary liquid alloys are calculated by molecular interaction volume model (MIVM), which is a two-parameter model with the partial molar infinite dilute mixing enthalpies. The predicted values are in agreement with the experimental data and then indicate that the model is reliable and convenient.
H.W. Yang D.P. Tao Z.H. Zhou
关键词:PREDICTION
Estimation of component activities in some oxide solid solutions by the molecular interaction vacancy model
2011年
The molecular interaction vacancy model (MIVM) is used to estimate simultaneously activities of all components in a range of entire composition of six binary oxide solid solutions and the MnO-FeO-CaO ternary solid solution by their binary infinite dilute activity coefficients. The average errors are the 0.03%-5.0% for the binaries and the 4.11%-25.2% for the ternary which is less than that (4.84%-41.2%) of the sub-regular solution model (SRSM). This shows that MIVM is more effective and reliable than SRSM for the ternary and does not depend on a polynomial approximation with some ternary adjustable parameters.
Dongping TAO
关键词:ESTIMATIONACTIVITYOXIDE
共2页<12>
聚类工具0