- 专利标题: METHOD OF DIRECT REDUCTION OF CHROMITE WITH CRYOLITE ADDITIVE
-
申请号: US15788953申请日: 2017-10-20
-
公开(公告)号: US20190119784A1公开(公告)日: 2019-04-25
- 发明人: Samira SOKHANVARAN , Dogan PAKTUNC
- 申请人: Her Majesty the Queen in Right of Canada, as represented by the Minister of Natural Resources
- 主分类号: C22B34/32
- IPC分类号: C22B34/32 ; C22B5/10
摘要:
A method of chromite reduction using cryolite (Na3AlF6) as an additive. The cryolite used may be pure cryolite or an impure mixture containing cryolite, such as the bath material produced as waste or as a by-product of aluminum smelting processes. In one embodiment, the reduction product is re-melted at a higher temperature to form larger metallic particles. In another embodiment, the chromite ore is granulated with cryolite particles and carbon reductant particles before being reduced.
公开/授权文献
信息查询