| Original document(4 pages) 中文版 |
This invention relates to a process of treating waste liquor generated by rust remomoving of iron and steel for producing such products as ammonium chloride, iron black, iron red and ferric oxide, especially to those waste liquor of the rust removing agents composed by hydrochloric acid or hydrochloric acid with some additives. The art includes purification of the waste liquor, oxidation, adding ammonia water, deposition, separation, dry and calcination and is characterized by less investment, rapidly taking effect, low cost, elimination of problems of waste water exhausting and pollution, and high-purity ferric oxide up to 95% or more. |
Application Number
申请号 |
88104438 |
Application Date
申请日 |
1988.07.17 |
| Title 名称 |
Technology for making products from waste liquor of iron and steel rust-removing |
Publication Number
公开号 |
1039571 |
Publication Date
公开日 |
1990.02.14 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
C01G49/02,C02F1/64 |
Applicant(s) Name
申请人 |
Li Guishi |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
LU XICHENG |
| More information 更 多 信 息 |
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