GB190601050A - Improvements in the Manufacture of Black Oxide of Iron. - Google Patents

Improvements in the Manufacture of Black Oxide of Iron.

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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
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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
Application number
Inventor
Jasper Wetter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190601050A publication Critical patent/GB190601050A/en
Expired legal-status Critical Current

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  • 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.
GB190601050D 1906-01-15 1906-01-15 Improvements in the Manufacture of Black Oxide of Iron. Expired GB190601050A (en)

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.

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GB (1) GB190601050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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