NL7804914A - Lead recovery from used accumulators and process wastes - in redn. furnace fed with air contg. steam and oxygen to raise lead yield - Google Patents

Lead recovery from used accumulators and process wastes - in redn. furnace fed with air contg. steam and oxygen to raise lead yield

Info

Publication number
NL7804914A
NL7804914A NL7804914A NL7804914A NL7804914A NL 7804914 A NL7804914 A NL 7804914A NL 7804914 A NL7804914 A NL 7804914A NL 7804914 A NL7804914 A NL 7804914A NL 7804914 A NL7804914 A NL 7804914A
Authority
NL
Netherlands
Prior art keywords
lead
steam
oxygen
furnace
redn
Prior art date
Application number
NL7804914A
Other languages
Dutch (nl)
Original Assignee
Nl Industries Inc
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
Priority claimed from US05/842,983 external-priority patent/US4115109A/en
Application filed by Nl Industries Inc filed Critical Nl Industries Inc
Priority to NL7804914A priority Critical patent/NL7804914A/en
Publication of NL7804914A publication Critical patent/NL7804914A/en

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
    • C22B13/00—Obtaining lead
    • C22B13/02—Obtaining lead by dry processes
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The process is for the prodn. of lead from sec. lead in a refining furnace which is fed with materials (I) contg. Pb; a carbonaceous material (IIe; and fluxes. Air is fed into the furnace to react with (II) to obtain CO for melting and reducing (I) to obtain molten Pb which is drawn from the furnace. Before the air is fed into the furnace, 1-8, pref. 1-5 wt % of steam, and 0.5-5, pref. 1-3 wt % oxygen, are added to the air. The process is used for recovering Pb from scrap batteries and process wt. etc. and increases the amt. of Pb recovered.
NL7804914A 1977-10-17 1978-05-08 Lead recovery from used accumulators and process wastes - in redn. furnace fed with air contg. steam and oxygen to raise lead yield NL7804914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7804914A NL7804914A (en) 1977-10-17 1978-05-08 Lead recovery from used accumulators and process wastes - in redn. furnace fed with air contg. steam and oxygen to raise lead yield

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/842,983 US4115109A (en) 1976-04-21 1977-10-17 Secondary lead smelting process
NL7804914A NL7804914A (en) 1977-10-17 1978-05-08 Lead recovery from used accumulators and process wastes - in redn. furnace fed with air contg. steam and oxygen to raise lead yield

Publications (1)

Publication Number Publication Date
NL7804914A true NL7804914A (en) 1979-11-12

Family

ID=32044748

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7804914A NL7804914A (en) 1977-10-17 1978-05-08 Lead recovery from used accumulators and process wastes - in redn. furnace fed with air contg. steam and oxygen to raise lead yield

Country Status (1)

Country Link
NL (1) NL7804914A (en)

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Legal Events

Date Code Title Description
BT A document has been added to the application laid open to public inspection
BV The patent application has lapsed