发明授权
- 专利标题: Method for melting and reducing chrome ore
- 专利标题(中): 熔炼和还原铬矿的方法
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申请号: US929171申请日: 1986-11-10
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公开(公告)号: US4783219A公开(公告)日: 1988-11-08
- 发明人: Hajime Mori , Minoru Hirano , Teruyuki Hasegawa , Yoshihiko Kawai , Yoshiteru Kikuchi , Kenji Takahashi
- 申请人: Hajime Mori , Minoru Hirano , Teruyuki Hasegawa , Yoshihiko Kawai , Yoshiteru Kikuchi , Kenji Takahashi
- 申请人地址: JPX Tokyo
- 专利权人: Nippon Kokan Kabushiki Kaisha
- 当前专利权人: Nippon Kokan Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX60-252635 19851113
- 主分类号: C22B5/10
- IPC分类号: C22B5/10 ; C22B9/04 ; C22B34/32 ; C21C5/34
摘要:
A method for melting and reducing chrome ore, which comprises charging chrome ore and carbonaceous material, and blowing in oxygen gas under a pressure ranging from 1 to 600 Torr, while molten metal is being stirred by a stirring gas blown in. In this method, a reaction vessel capable of allowing top blowing and bottom blowing onto the molten metal and decreasing pressure within the vessel is employed. Chrome ore and carbonaceous material can be used in the form of lumps or powder. When powdered ore and material are used, they can be injected through a lance or a tuyere into the vessel.
公开/授权文献
- US4186956A Log carrier 公开/授权日:1980-02-05
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