Low-carbon nickel-increasing nickel-increasing core-shell particles for stainless steel smelting and application thereof
By designing a three-layer structure for low-carbon nickel-enriched core-shell particles, the problems of low nickel yield and severe splashing in traditional stainless steel smelting were solved, achieving efficient and safe nickel reduction and separation, and meeting the requirements of low-carbon stainless steel production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- OMAIJINGKE TECHNOLOGY (TANGSHAN) CO LTD
- Filing Date
- 2026-06-05
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional stainless steel smelting using ferronickel or pure nickel as the nickel source suffers from high costs, low nickel yield, and high carbon emissions. Furthermore, the direct alloying of NiO for nickel enrichment involves violent reactions and severe splashing, resulting in unstable nickel absorption rates, which makes it difficult to meet the requirements for low-carbon stainless steel production.
Low-carbon nickel-enhanced core-shell particles are used, including a reaction heating core, an intermediate transition layer, and a core-shell outer layer. The core is composed of NiO powder, reducing agent, and binder. The intermediate transition layer contains flux and slag remover, and the outer layer is a coolant. By designing the structure of each layer, efficient reduction of NiO, separation of metal and slag, and thermal balance are achieved, avoiding splashing.
It achieves a nickel recovery rate of over 90%, avoids splashing, simplifies the production process, reduces energy consumption, meets the production requirements of low-carbon stainless steel, and does not introduce additional impurities.
Smart Images
Figure CN122405935A_ABST