US2098063A - Process for deoxidation of copper - Google Patents

Process for deoxidation of copper Download PDF

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Publication number
US2098063A
US2098063A US146964A US14696437A US2098063A US 2098063 A US2098063 A US 2098063A US 146964 A US146964 A US 146964A US 14696437 A US14696437 A US 14696437A US 2098063 A US2098063 A US 2098063A
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US
United States
Prior art keywords
copper
deoxidation
molten
act
metaphosphoric acid
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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 - Lifetime
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US146964A
Inventor
Perrin Rene
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Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining

Definitions

  • the operation is efiected either by placing the molten metal in a heated furnace and by placing above a. deoxidizing flux or slag which is caused to act for the time necessary, or by introducingthe flux into the pouring jet oi; the copper or into the ladle into which the copper is poured, or by causing the copper to flow through the molten flux placed in a crucible, or again by violently intermixing the liquid copper with a 5 flux or slag capable of absorbing the copper oxides, this intermlxing being for example efiected by violently pouring the copper for example in a large jet upon a slag molten in advance in the bottom ofa ladle, the size of the jet and the 0 height from which the metal is poured being such that the slag forms a.sort of emulsion in the metal and that the operation of deoxidation is almost instantaneous, according to the process previously patented by applicant for purifying 25 copper by violentintermixing of molten fluid s
  • the present invention has for subject the appli-' cation of metaphosphoric acid to the deoxidation of copper by an operation of the kind of those 30 mentioned above.
  • Metaphosphoric acid has been found in fact to be a particularly active flux which permits in a short time considerable quantities of oxygen to be extracted from molten copper.
  • Metaphosphoric acid may be put either in the solid state or in the liquid state into contact with the copper.
  • Example 5 In a crucible, kgs. of copper was melted. The bath when formed had an oxygen content of 0.20%. To the bath, 1 kg. of metaphosphoric acid was added and allowed to melt and to act on 10 the metal for about 15 minutes. After this period 'of action the oxygen content of the metal had fallen to 0.020%.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

Patented Maria, 193? 4 2,098,063 mocrss roa nnoxrm'rror: F corran Ren Perrin, Paris, France, assignor to Socit dElectrochimie dElectrometailurgie et des Aciries Electriques dUgine, Paris, France, a
- corporation of France No Drawing. Application June i, 1937, Serial 1 No. 146,964. In France June 16, 1936 4 Claims.
It is already known to deoxidize copper by causing to act upon this metal in the molten state various reactive substances which act to extract from the copper the oxygen which it contains,
5 in particular in the form of copper oxide.
The operation is efiected either by placing the molten metal in a heated furnace and by placing above a. deoxidizing flux or slag which is caused to act for the time necessary, or by introducingthe flux into the pouring jet oi; the copper or into the ladle into which the copper is poured, or by causing the copper to flow through the molten flux placed in a crucible, or again by violently intermixing the liquid copper with a 5 flux or slag capable of absorbing the copper oxides, this intermlxing being for example efiected by violently pouring the copper for example in a large jet upon a slag molten in advance in the bottom ofa ladle, the size of the jet and the 0 height from which the metal is poured being such that the slag forms a.sort of emulsion in the metal and that the operation of deoxidation is almost instantaneous, according to the process previously patented by applicant for purifying 25 copper by violentintermixing of molten fluid slag and metal.
The present invention has for subject the appli-' cation of metaphosphoric acid to the deoxidation of copper by an operation of the kind of those 30 mentioned above. Metaphosphoric acid has been found in fact to be a particularly active flux which permits in a short time considerable quantities of oxygen to be extracted from molten copper.
.The employment of this substance may take place by any of the means indicated above for the use of the usual fluxes. Metaphosphoric acid may be put either in the solid state or in the liquid state into contact with the copper.
Example 5 In a crucible, kgs. of copper was melted. The bath when formed had an oxygen content of 0.20%. To the bath, 1 kg. of metaphosphoric acid was added and allowed to melt and to act on 10 the metal for about 15 minutes. After this period 'of action the oxygen content of the metal had fallen to 0.020%.
I claim:
1. Process for deoxidation of copper by the 15 action of a deoxidizing flux consisting in causing metaphosphoric acid to act upon a bath of oxidized copper.
2. Process for deoxidation of copper by the action of a deoxidizing flux consisting in causing 2o metaphosphoric acid to act upon the molten copper by putting it into contact in the solid state with the copper.
3. Process for deoxidation of copper by the action of a deoxidizing flux consisting in causing metaphosphoric acid to act upon the molten copper by putting it into contact in the liquid state with the copper.
4. Process for deoxidation of copper by the action of a deoxidizing flux consisting in causing metaphosphoric acid to act upon the molten cop per by violently intermixing the metaphosphoric acid and the copper.
RENE PERRIN.
US146964A 1936-06-16 1937-06-07 Process for deoxidation of copper Expired - Lifetime US2098063A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR681073X 1936-06-16

Publications (1)

Publication Number Publication Date
US2098063A true US2098063A (en) 1937-11-02

Family

ID=9022616

Family Applications (1)

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US146964A Expired - Lifetime US2098063A (en) 1936-06-16 1937-06-07 Process for deoxidation of copper

Country Status (5)

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US (1) US2098063A (en)
BE (1) BE421815A (en)
DE (1) DE681073C (en)
FR (1) FR819165A (en)
GB (2) GB474585A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5306329A (en) * 1993-04-09 1994-04-26 Goodman Jr Warren B Phosphorous deoxidation of metal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU169980B (en) * 1975-04-16 1977-03-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5306329A (en) * 1993-04-09 1994-04-26 Goodman Jr Warren B Phosphorous deoxidation of metal

Also Published As

Publication number Publication date
FR819165A (en) 1937-10-12
GB481844A (en) 1938-03-18
BE421815A (en)
DE681073C (en) 1939-09-14
GB474585A (en) 1937-11-03

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