GB190905618A - Improvements in the Manufacture of Ferric Oxide. - Google Patents

Improvements in the Manufacture of Ferric Oxide.

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Publication number
GB190905618A
GB190905618A GB190905618DA GB190905618A GB 190905618 A GB190905618 A GB 190905618A GB 190905618D A GB190905618D A GB 190905618DA GB 190905618 A GB190905618 A GB 190905618A
Authority
GB
United Kingdom
Prior art keywords
liquor
chloride
carbonic acid
ferrous
precipitation
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
John Gill
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 GB190905618A publication Critical patent/GB190905618A/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00Compounds of iron
    • C01G49/02Oxides; Hydroxides
    • C01G49/06Ferric oxide [Fe2O3]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

5618. Gill, J. March 9. Iron oxides and hydrates; manganese chloride.- Ferric hydrate is precipitated from ferrous-chloride liquors, such as galvanizers'or wire-drawers' liquor, by treating with calcium carbonate and forcing carbonic acid and air into the liquor, while the liquor is maintained at a temperature and pressure above normal. Or the calcium carbonate may be treated in a separate vessel with carbonic acid under pressure, and the solution of bicarbonate added to the ferrous-chloride liquor. The precipitation is effected in a steam-jacketed pan A with a perforated false bottom a, beneath which the mixture of carbonic acid and air under pressure is supplied. A stirring-apparatus c keeps the liquor in agitation, and the escaping gases are led off by a pipe D<1> and returned to the carbonic-acid generator B for reuse, any steam being condensed in a coil E. The precipitate, before calcination to oxide, is treated with hydrochloric acid to remove any manganese oxides present, the liquors so obtained being used for the precipitation of siennas and umbers.
GB190905618D 1909-03-09 1909-03-09 Improvements in the Manufacture of Ferric Oxide. Expired GB190905618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190905618T 1909-03-09

Publications (1)

Publication Number Publication Date
GB190905618A true GB190905618A (en) 1910-01-13

Family

ID=32442442

Family Applications (2)

Application Number Title Priority Date Filing Date
GB190905618D Expired GB190905618A (en) 1909-03-09 1909-03-09 Improvements in the Manufacture of Ferric Oxide.
GB190921884D Expired GB190921884A (en) 1909-03-09 1909-09-25 Improvements in the Manufacture of Ferric Oxide.

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB190921884D Expired GB190921884A (en) 1909-03-09 1909-09-25 Improvements in the Manufacture of Ferric Oxide.

Country Status (1)

Country Link
GB (2) GB190905618A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1149582A (en) * 1979-02-09 1983-07-12 Pfizer Limited Synthetic rhombohedrol magnetite pigment

Also Published As

Publication number Publication date
GB190921884A (en) 1910-05-19

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