GB190601050A - Improvements in the Manufacture of Black Oxide of Iron. - Google Patents
Improvements in the Manufacture of Black Oxide of Iron.Info
- Publication number
- GB190601050A GB190601050A GB190601050DA GB190601050A GB 190601050 A GB190601050 A GB 190601050A GB 190601050D A GB190601050D A GB 190601050DA GB 190601050 A GB190601050 A GB 190601050A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- ammonia
- black oxide
- whole
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Compounds Of Iron (AREA)
Abstract
1050. Wetter, J., [W³lffing, C. F.]. Jan. 15. Iron oxides.-Black oxide of iron suitable as the basis for a paint for structural ironwork is prepared from the waste liquors obtained in pickling iron in hydrochloric or sulphuric acid. The excess of acid in the liquors is first neutralized, preferably with iron filings, and two-thirds the quantity of ammonia necessary to precipitate the whole of the iron is added and the mixture diluted and oxidized by blowing air through or by stirring. The liquid is afterwards boiled, the remaining third of the ammonia is added, and the mixture is boiled under pressure until the whole of the iron is precipitated. Ammonium sulphate or chloride is obtained as a by-product, which may be used to form ammonia.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190601050T | 1906-01-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190601050A true GB190601050A (en) | 1906-11-08 |
Family
ID=32203155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190601050D Expired GB190601050A (en) | 1906-01-15 | 1906-01-15 | Improvements in the Manufacture of Black Oxide of Iron. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190601050A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2529874A (en) * | 1947-09-27 | 1950-11-14 | Mellon Inst Of Ind Res | Process for manufacturing ammonium salts and magnetic iron oxide from solutions of ferrous salts |
-
1906
- 1906-01-15 GB GB190601050D patent/GB190601050A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2529874A (en) * | 1947-09-27 | 1950-11-14 | Mellon Inst Of Ind Res | Process for manufacturing ammonium salts and magnetic iron oxide from solutions of ferrous salts |
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