| Original document(5 pages) 中文版 |
This invention has solved the problem of making magnesia as isolating coat of silicium steel anneal, conventionally magnesia is made with carbonated ammonia liquor, due to its specific volume and burning waste, it can not be used in Si-steel anneal. This invention uses sodium hydroxide for purification treatment at 45-55 deg.C, the relative amount of NaOH used is 15-17% to 18-22% of light MgO in raw liquid. Then 0.23-0.27 pts (by vol. of the purified soln.) of carbonated ammonia liquor and 0.06-0.07 pts of 3.0-3.2N sodium hydroxide solution are added and react at 72-82 edg.C. This invention provides a new way of making magnesia for Si-steel manufacture. |
Application Number
申请号 |
85105220 |
Application Date
申请日 |
1985.07.01 |
| Title 名称 |
Method of making magnesia for Si-steel manufactare |
Publication Number
公开号 |
1006253 |
Publication Date
公开日 |
1986.12.31 |
| Approval Pub. Date |
|
Granted Pub. Date |
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| International Classification 分类号 |
C01F5/02 |
Applicant(s) Name
申请人 |
Zhejiang Province Zhoushan Salt Science Institute |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Chang Zhiliang, Fan Rongxin, Fang Kunling, Huang Xuenguang, Huang Yaner, Lin Laiping, Wang Liming, Xu Ping |
| Attorney & Agent 代理人 |
FAN RONGXIN |
| More information 更 多 信 息 |
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