Rutile TiO2 Production: Optimization of Microwave Calcination of Metatitanic Acid Using Response Surface Methodology,Chemical Engineering & Technology

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Rutile TiO2 Production: Optimization of Microwave Calcination of Metatitanic Acid Using Response Surface Methodology
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2022-07-27 , DOI: 10.1002/ceat.202200246
Rui Bao _{1,

2,

3,

4} , Bingguo Liu _{1,

2,

3,

4} , Ting Zhang _{1,

2,

3,

4} , Bangjian Wu _{1,

2,

3,

4} , Enhua Dong _{1,

2,

3,

4} , Chao Yuwen _{1,

2,

3,

4}

Affiliation

Rutile TiO₂ was prepared by microwave calcination of metatitanic acid. A quadratic regression model for the conversion to rutile TiO₂ was developed by response surface methodology (RSM), to investigate the effects of the calcination temperature, the calcination time, the sample mass, and their interactions on the conversion rates. Within the scope of the experiments, only the calcination temperature and time had significant effects on the rutile TiO₂ conversion. Under the optimized conditions (866 °C, 61 min, 58 g), the predicted rutile TiO₂ conversion was 99.91 %, approaching the actual conversion (99.44 %). Thus, the optimization by RSM of microwave calcination of metatitanic acid for the preparation of rutile TiO₂ is a feasible approach to achieving a more efficient TiO₂ production process.

中文翻译：

金红石 TiO2 生产：使用响应面法优化偏钛酸的微波煅烧

采用微波煅烧偏钛酸制备金红石型TiO _{2 。}通过响应面法 (RSM)建立了转化为金红石 TiO ₂的二次回归模型，以研究煅烧温度、煅烧时间、样品质量及其相互作用对转化率的影响。在实验范围内，只有煅烧温度和时间对金红石型TiO ₂转化率有显着影响。在优化条件下（866 ℃、61 min、58 g），预测的金红石TiO ₂转化率为99.91 %，接近实际转化率（99.44 %）。因此，通过RSM优化偏钛酸微波煅烧制备金红石TiO ₂是实现更高效的TiO ₂生产工艺的可行方法。

更新日期：2022-07-27

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