GB620221A - Improvements in and relating to the recovery of metals from scrap - Google Patents

Improvements in and relating to the recovery of metals from scrap

Info

Publication number
GB620221A
GB620221A GB79647A GB79647A GB620221A GB 620221 A GB620221 A GB 620221A GB 79647 A GB79647 A GB 79647A GB 79647 A GB79647 A GB 79647A GB 620221 A GB620221 A GB 620221A
Authority
GB
United Kingdom
Prior art keywords
temperature
scrap
ratio
oxygen
material contains
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
GB79647A
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
Priority to GB79647A priority Critical patent/GB620221A/en
Publication of GB620221A publication Critical patent/GB620221A/en
Expired 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
    • C22B7/001—Dry processes
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A process for the recovery of metal from scrap containing volatile metals wherein the scrap is melted by controlled oxidation of solid carbon by means of a gas containing at least 30 per cent by volume of oxygen, e.g. oxygen or oxygen-enriched air, and heated to such a temperature that most of the volatile metal present is removed by volatization, the combustion condition being so controlled that the gaseous products form a mixture substantially non-oxidizing to the said volatile metal. If zinc is to be vaporized from brass scrap the temperature will be above 1150 DEG C. and the carbon monoxide to carbon dioxide ratio in the gaseous products will be at least 500. When the initial material contains lead the temperature will be above 1650 DEG C. and the said ratio any value appreciably over zero. When the initial material contains a copper alloy of cadmium the temperature will be above 800 DEG C. and the said ratio above 2.5. When the initial material contains a copper alloy of antimony, the temperature is above 1400 DEG C. and the said ratio any value appreciably over zero. It is preferred to use charcoal as the solid carbon in the process. Specification 582,506 is referred to.
GB79647A 1947-01-09 1947-01-09 Improvements in and relating to the recovery of metals from scrap Expired GB620221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB79647A GB620221A (en) 1947-01-09 1947-01-09 Improvements in and relating to the recovery of metals from scrap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB79647A GB620221A (en) 1947-01-09 1947-01-09 Improvements in and relating to the recovery of metals from scrap

Publications (1)

Publication Number Publication Date
GB620221A true GB620221A (en) 1949-03-22

Family

ID=9710654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB79647A Expired GB620221A (en) 1947-01-09 1947-01-09 Improvements in and relating to the recovery of metals from scrap

Country Status (1)

Country Link
GB (1) GB620221A (en)

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