FR2306751A1 - Metal granules obtd. from melting residues or dross - using a horizontal air duct to separate metal from oxides - Google Patents

Metal granules obtd. from melting residues or dross - using a horizontal air duct to separate metal from oxides

Info

Publication number
FR2306751A1
FR2306751A1 FR7510755A FR7510755A FR2306751A1 FR 2306751 A1 FR2306751 A1 FR 2306751A1 FR 7510755 A FR7510755 A FR 7510755A FR 7510755 A FR7510755 A FR 7510755A FR 2306751 A1 FR2306751 A1 FR 2306751A1
Authority
FR
France
Prior art keywords
dross
metal
classifier
granules
metal granules
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.)
Granted
Application number
FR7510755A
Other languages
French (fr)
Other versions
FR2306751B1 (en
Inventor
Luigi Donadio
Giuseppe Rizzo
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.)
MINERARIA METALLURG PERTUSOLA
Original Assignee
MINERARIA METALLURG PERTUSOLA
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 MINERARIA METALLURG PERTUSOLA filed Critical MINERARIA METALLURG PERTUSOLA
Priority to FR7510755A priority Critical patent/FR2306751A1/en
Priority to FI760941A priority patent/FI60147C/en
Priority to DE2615599A priority patent/DE2615599C3/en
Priority to NL7605787A priority patent/NL7605787A/en
Publication of FR2306751A1 publication Critical patent/FR2306751A1/en
Application granted granted Critical
Publication of FR2306751B1 publication Critical patent/FR2306751B1/fr
Granted legal-status Critical Current

Links

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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04—Working-up slag
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • 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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

In the mfr. of metal granules, the melting residues and/or dross is subjected to milling and then fed through a calibrating slot into a classifier with a reduced air pressure and circulation of ar, the metal granules being removed from the upstream section of the classifier while being exposed to a counter current of air drawn into the classifier by the low pressure zone. The quality of the granules if pref. controlled by the pressure and circulation in the low pressure zone. the pref. plant includes a hammer mill in which the grid has been replaced by a calibrated slot leading to a horizontal classifier followed by a filter and suction fan which creates the reduced air pressure. Spherical metal granules are obtd. at low cost due to the use of scrap materials, e.g. the recovery or zinc in dross arising from the melting of Zn cathodes.
FR7510755A 1975-04-07 1975-04-07 Metal granules obtd. from melting residues or dross - using a horizontal air duct to separate metal from oxides Granted FR2306751A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7510755A FR2306751A1 (en) 1975-04-07 1975-04-07 Metal granules obtd. from melting residues or dross - using a horizontal air duct to separate metal from oxides
FI760941A FI60147C (en) 1975-04-07 1976-04-07 OVER ANCHORING FOER FRAMSTAELLNING AV METALLGRANULER
DE2615599A DE2615599C3 (en) 1975-04-07 1976-04-09 Method and device for the production of metal powders
NL7605787A NL7605787A (en) 1975-04-07 1976-05-28 Metal granules obtd. from melting residues or dross - using a horizontal air duct to separate metal from oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7510755A FR2306751A1 (en) 1975-04-07 1975-04-07 Metal granules obtd. from melting residues or dross - using a horizontal air duct to separate metal from oxides

Publications (2)

Publication Number Publication Date
FR2306751A1 true FR2306751A1 (en) 1976-11-05
FR2306751B1 FR2306751B1 (en) 1977-11-10

Family

ID=9153589

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7510755A Granted FR2306751A1 (en) 1975-04-07 1975-04-07 Metal granules obtd. from melting residues or dross - using a horizontal air duct to separate metal from oxides

Country Status (2)

Country Link
FI (1) FI60147C (en)
FR (1) FR2306751A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434205A1 (en) * 1978-08-25 1980-03-21 Dow Chemical Co RECOVERY OF METAL GRANULES FROM PROCESS SLUDGE
DE19518919A1 (en) * 1995-05-23 1996-11-28 Petkus Wutha Sortier Und Aufbe Recovering materials esp. light fractions leaving shredders

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE62455C (en) * J. K. HALLOWELL in Chicago, 31 ti. Ada Street, V. St. A On preparation device for ores
DE100760C (en) *
US2294290A (en) * 1940-10-21 1942-08-25 Freeman Eugene Pneumatic concentrator
FR1527758A (en) * 1966-09-30 1968-06-07 Sous Produits Siderurgiques S Steel waste treatment process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE62455C (en) * J. K. HALLOWELL in Chicago, 31 ti. Ada Street, V. St. A On preparation device for ores
DE100760C (en) *
US2294290A (en) * 1940-10-21 1942-08-25 Freeman Eugene Pneumatic concentrator
FR1527758A (en) * 1966-09-30 1968-06-07 Sous Produits Siderurgiques S Steel waste treatment process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434205A1 (en) * 1978-08-25 1980-03-21 Dow Chemical Co RECOVERY OF METAL GRANULES FROM PROCESS SLUDGE
DE19518919A1 (en) * 1995-05-23 1996-11-28 Petkus Wutha Sortier Und Aufbe Recovering materials esp. light fractions leaving shredders

Also Published As

Publication number Publication date
FI60147C (en) 1981-12-10
FI60147B (en) 1981-08-31
FI760941A (en) 1976-10-08
FR2306751B1 (en) 1977-11-10

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Legal Events

Date Code Title Description
ST Notification of lapse