A model of dissolution of chromia in binary Na₂O-SiO₂ liquids is presented in this work. Data available in the literature on the acid/base properties and the chemistry of chromium in such liquids were used in order to refine the model. Physical phenomena such as migration of ions and the resulting electric field, the mechanical equilibrium of the liquid and the interface recession caused by the dissolution of chromia are also implemented in the model. Numerical simulation has been compared to experimental measurements of Na₂O, SiO₂ and Cr₂O₃ concentration profiles after 1 h of immersion of chromia in a (Na₂O)_0.25(SiO₂)_0.75 liquid at 1150 °C. The phenomena having a significant influence on the dissolution rate of chromia are highlighted in the last part of this paper.

在这项工作中提出了二价Na ₂ O-SiO ₂液体中氧化铬溶解的模型。为了完善模型，使用了文献中有关此类液体中酸/碱性质和铬化学性质的数据。在模型中还实现了物理现象，例如离子迁移和由此产生的电场，液体的机械平衡以及由氧化铬溶解引起的界面退缩。将数值模拟与将氧化铬浸入（Na ₂ O）_0.25（SiO _2中）1 h后Na ₂ O，SiO ₂和Cr ₂ O ₃浓度分布的实验测量值进行了比较。）在1150°C下为_0.75液体。对色度溶解速率有显着影响的现象在本文的最后部分进行了重点介绍。