A Study on Kinetics of TiO2 Inclusion Absorbed by Mold Fluxes

郝占全; 陈伟庆; CarstenLippold; KimKwangSeong

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A Study on Kinetics of TiO2 Inclusion Absorbed by Mold Fluxes

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- A Study on Kinetics of TiO2 Inclusion Absorbed by Mold Fluxes
- Special Steel Vol. 30, Issue 5, Pages: 13-15(2009)
- 作者机构：
  
  1. 北京科技大学冶金与生态工程学院,北京,100083
  2. 青岛斯多伯格三一冶金材料有限公司,青岛,266300
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：26 March 2009，
  
  Online First：22 November 2022，
  
  Published：22 November 2009
- 稿件说明：
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郝占全, 陈伟庆, CarstenLippold, et al. A Study on Kinetics of TiO2 Inclusion Absorbed by Mold Fluxes[J]. Special Steel, 2009, 30(5): 13-15.
DOI：

郝占全, 陈伟庆, CarstenLippold, et al. A Study on Kinetics of TiO2 Inclusion Absorbed by Mold Fluxes[J]. Special Steel, 2009, 30(5): 13-15. DOI：

摘要

碱度0.85、CaO-SiO

-Al

-MgO-Na

O-CaF

为基本渣系

采用旋转动力学方法研究了TiO

棒的旋转角速度(50～120)r/min

碱度(0.7～1.15)

熔渣温度(1300～1480℃)

TiO

(0～12%)

CaF

(5%～15%)对保护渣吸收TiO

速率的影响。结果表明

分别随温度升高

碱度增加

TiO

含量降低和CaF

含量增加

使TiO

在渣中的溶解速率升高

其中温度和碱度的影响最显著。TiO

溶解的限制性环节是扩散过程

溶解过程的活化能为130.9kJ/mol。

Abstract

Based on CaO-SiO

-Al

-MgO-Na

O-CaF

slag system with 0.85 basicity

the effect of rotating velocity of TiO

bar (50-120 r/min)

basicity (0.7 ~ 1.15)

flux temperature (1300 ~ 1480 °C )

TiO

(0 〜12% ) and CaF

(5% 〜15% ) content on TiO

absorbed rate by mold flux has been studied by rotating kinetics method. Results show that respectively with increasing temperature and basicity

decreasing TiO

content and increasing CaF

content in flux

the TiO

dissolution rate in flux increases

in which the effect of temperature and basicity is most notable. Diffusion process is an inhibited links for TiO

dissolution and activation energy of dissolution process is 13

0.9 kJ/mol.

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