Steelmaking consortium project II: development of thermodynamic databases and process simulation models for the steelmaking process

这是我们之前的合作研究开发项目“CRDPJ 412640-11”和“CRDPJ 381693-09”的延续和扩展，用于开发炼钢脱磷过程和结晶器保护渣的热力学数据库。为了减轻汽车的重量，对高合金高强度钢的需求越来越大。为了了解高合金钢生产过程中渣、金属、耐火材料、夹杂物、保护渣和气体之间的复杂化学反应，准确的热力学知识是必要的前提。在这个为期3年的新项目中，从前两个CRD项目开发的热力学数据库将扩展到CaO-SiO2-MgO-Al2O3-FeO-Fe2O3-Na2O-K2O-Li2O-(F)系统，包括氧化锆、氧化钛、氧化钒、三氧化二硼、氧化锰和氧化铬。此外，钢水数据库将扩展到高合金系统，以处理炼钢过程中的O、N、S、P和C等精炼杂质。为了将热力学数据库应用于工业过程，将为二次炼钢过程的每一步开发一个简单的过程模拟模型。该项目将与我们以前的和新的合作伙伴(三个加拿大合作伙伴：力拓-QIT、纽柯钢铁和RHI，以及六个非加拿大合作伙伴：浦项制铁、现代钢铁、新日铁和住友金属公司、JFE钢铁、奥伊斯塔尔平和塔塔钢铁)合作进行。工业伙伴将对热力学数据库和工艺模型进行评估并提供反馈。此外，它们还将为工艺模拟模型的开发提供有价值的内部工艺数据或操作知识。该项目的成果将用于改进常规和新型高合金钢的工业炼钢工艺。在更大的范围内，这项研究将对一般火法冶金、水泥、玻璃制造和燃烧行业以及地质界有用。

This is the continuation and expansion of our previous Collaborative Research Development projects "CRDPJ 412640-11" and "CRDPJ 381693-09" for the development of thermodynamic databases for the steelmaking de-phosphorization process and mold fluxes. The demand for high alloy high strength steels is increasing to reduce the weight of automobiles. In order to understand the complex chemical reactions between the slag, metal, refractories, inclusions, mold flux and gases during the production of high alloy steels, accurate thermodynamic knowledge of related systems is a necessary prerequisite. In this new 3-year project, the thermodynamic database developed from the two previous CRD projects will be expanded to include ZrO2, TiOx, VOx, B2O3, MnO and CrOx to the CaO-SiO2-MgO-Al2O3-FeO-Fe2O3-Na2O-K2O-Li2O-(F) system. In addition, the liquid steel database will be expanded to high alloy systems in order to deal with refining impurities like O, N, S, P, and C during the steelmaking process. To apply the thermodynamic databases to industrial processes, a simple process simulation model will be developed for each step of the secondary steelmaking process. This project will be carried out in collaboration with our previous and new partners (three Canadian partners: Rio Tinto-QIT, Nucor Steel, and RHI, and 6 non-Canadian partners: Posco, Hyundai Steel, Nippon Steel and Sumitomo Metals Corp., JFE Steel, Voestalpine and Tata Steel). The industrial partners will evaluate and provide feedback on the thermodynamic database and process model. In addition, they will also provide valuable in-house process data or operation knowledge for process simulation model developments. Results of the project will be used to improve the industrial steelmaking process for conventional and new high alloy steels. At a larger scale, this study will be useful to general pyrometallurgy, cement, glassmaking and combustion industries as well as to the geological community.