GB691092A - Improvements in or relating to the recovery of vanadium - Google Patents

Improvements in or relating to the recovery of vanadium

Info

Publication number
GB691092A
GB691092A GB9083/51A GB908351A GB691092A GB 691092 A GB691092 A GB 691092A GB 9083/51 A GB9083/51 A GB 9083/51A GB 908351 A GB908351 A GB 908351A GB 691092 A GB691092 A GB 691092A
Authority
GB
United Kingdom
Prior art keywords
lead
precipitate
chromate
vanadate
liquors
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
GB9083/51A
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.)
Diamond Shamrock Corp
Original Assignee
Diamond Alkali Co
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 Diamond Alkali Co filed Critical Diamond Alkali Co
Publication of GB691092A publication Critical patent/GB691092A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G31/00—Compounds of vanadium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Substances containing lead vanadate, e.g. ground vanadinite, or a precipitate, especially a lead vanadate-chromate precipitate obtained by the process of Specification 661,945, are leached by 34.5-42.5 per cent sulphuric acid at 25-70 DEG C, the vanadic acid solution is separated from the lead sulphate formed, its pH is adjusted to 1-3 by the addition of a sodium or ammonium base, and p the solution is heated to form 80 DEG C to the boiling point to precipitate sodium or ammonium hexametavanadate. The amount of acid used may be 1.2 times the equivalent of the lead. Fritted glass, ceramic materials and cloth made from specified synthetic resins are suitable as filter media. Sodium hydroxide, carbonate or bicarbonate, ammonium hydroxide, or the liquors from the leaching of the alkaline roast mass of the Specification referred to, may be used to adjust the pH of the solution. The lead sulphate cake is periodically leached with sulphuric acid, and the leach liquors are returned to a point, in the process of Specification 661,945, upstream from the point where lead sulphate is added to the chromate liquors to precipitate lead chromate-vanadate.
GB9083/51A 1950-04-28 1951-04-18 Improvements in or relating to the recovery of vanadium Expired GB691092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US691092XA 1950-04-28 1950-04-28

Publications (1)

Publication Number Publication Date
GB691092A true GB691092A (en) 1953-05-06

Family

ID=22086807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9083/51A Expired GB691092A (en) 1950-04-28 1951-04-18 Improvements in or relating to the recovery of vanadium

Country Status (1)

Country Link
GB (1) GB691092A (en)

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