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US1119929A - Process for securing the precipitation of the rare-metal oxids. - Google Patents

Process for securing the precipitation of the rare-metal oxids. Download PDF

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Publication number
US1119929A
US1119929A US74943613A US1913749436A US1119929A US 1119929 A US1119929 A US 1119929A US 74943613 A US74943613 A US 74943613A US 1913749436 A US1913749436 A US 1913749436A US 1119929 A US1119929 A US 1119929A
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United States
Prior art keywords
precipitation
securing
rare
oxids
solution
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Expired - Lifetime
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US74943613A
Inventor
Royal S Davis
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PRIMOS CHEMICAL Co
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PRIMOS CHEMICAL Co
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Publication date
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Priority to US74943613A priority Critical patent/US1119929A/en
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Publication of US1119929A publication Critical patent/US1119929A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G31/00Compounds of vanadium

Definitions

  • the invention relates to a process for securing the precipitation of the oxids of the rare metals such as vanadium, tungsten, uranium, molybdenum, and tellurium, and has for its objects, the provision of a process wherein a more complete precipitation may be secured than by other processes known in the art; and the provision of a method in which the necessity of using oxidizing or other agents'is avoided and the process correspondingly cheapened.
  • one of the solutions to which the process is applicable is sodium vanadate from which it is desired to precipitate vanadic voxid (V 0
  • the sodium vanadate is first acidulated with sulfuric or other acid, which causes a partial precipitation if the solution is strong enough.
  • the solution is then brought near to the boiling point and subjected to a pres sure preferably of an ounce or more. This treatment causes nearly a complete precipitation of the vanadic oxid.
  • a method of securing the precipitation of vanadic oxid from an acidulated solution of vanadium which consists in applying heat to said solution and subjecting it to a. superatmospheric pressure of approximately one ounce.
  • a method of securing the precipitation of vanadic oxids from an acidulated solution of vanadium which consists in applying super-atmospheric pressure thereto.
  • a method of securing the precipitation of vanadic oxids from an acidulated solution of vanadium which consists in applying heat and super-atmospheric pressure thereto.

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

Description

UNITED STATES PATEN OFFICE.
- ROYAL S. DAVIS, OF NEWMIBE, COLORADO, ASSIGNOR T0 PRIMOS CHEMICAL COMPANY,
OF PIRIMOS, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.
PROCESS FOR SECURING THE PRECIPITATION OF THE BABE-METAL OXIDS.
1,119,929. No Drawing.
To all whom it may concern Be it known that I, ROYAL S. DAVIS, a citizen of the United States, residing at Newmire, San Miguel county, Colorado, have invented a certain new and useful Process for Securing the Precipitation of the Rare-Metal Oxids, of .which the following is a specification.
The invention relates to a process for securing the precipitation of the oxids of the rare metals such as vanadium, tungsten, uranium, molybdenum, and tellurium, and has for its objects, the provision of a process wherein a more complete precipitation may be secured than by other processes known in the art; and the provision of a method in which the necessity of using oxidizing or other agents'is avoided and the process correspondingly cheapened.
As illustrative of the process, one of the solutions to which the process is applicable is sodium vanadate from which it is desired to precipitate vanadic voxid (V 0 In applying the process to this solution, the sodium vanadate is first acidulated with sulfuric or other acid, which causes a partial precipitation if the solution is strong enough. The solution is then brought near to the boiling point and subjected to a pres sure preferably of an ounce or more. This treatment causes nearly a complete precipitation of the vanadic oxid. The foregoing is merely illustrative, and various changes may be made from the process as thus specifically described without departing from the invention in its broad form as defined in the claims.
Specification of Letters Patent.
Patented Dec. 8, 1914.
Application filed February 19, 1918. Serial No. 749,486.
Having thus described my invention, what I clann as new and desire to secure by Letters Patent is 1. A method of securing the precipitation of the oxids of the rare metals, from solutions containing the acids, which consists in applying super-atmospheric pressure to the acidulated and heated solutions.
2. A method of securing the precipitation of vanadic oxids from a. solution of vanadium, which consists in acidulating the solution and applying super-atmospheric pressure thereto. 3. A method of securing the precipitation of vanadic oxid from an acidulated solution of vanadium which consists in applying heat to said solution and subjecting it to a. superatmospheric pressure of approximately one ounce.
4. A method of securing the precipitation of vanadic oxids from an acidulated solution of vanadium, which consists in applying super-atmospheric pressure thereto.
5. A method of securing the precipitation of vanadic oxids from an acidulated solution of vanadium, which consists in applying heat and super-atmospheric pressure thereto.
In testimony whereof I have hereunto signed my name in the presence of the two subscribing witnesses.
ROYAL -S. DAVIS.
Witnesses:
A. MARTIN, L. A. Mum's.
US74943613A 1913-02-19 1913-02-19 Process for securing the precipitation of the rare-metal oxids. Expired - Lifetime US1119929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US74943613A US1119929A (en) 1913-02-19 1913-02-19 Process for securing the precipitation of the rare-metal oxids.

Applications Claiming Priority (1)

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US74943613A US1119929A (en) 1913-02-19 1913-02-19 Process for securing the precipitation of the rare-metal oxids.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442610A (en) * 1946-03-05 1948-06-01 Nat Lead Co Precipitation of hydrous vanadium oxide
US2735748A (en) * 1956-02-21 Process for recovery of tungsten values

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735748A (en) * 1956-02-21 Process for recovery of tungsten values
US2442610A (en) * 1946-03-05 1948-06-01 Nat Lead Co Precipitation of hydrous vanadium oxide

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