WO2007145972A3 - Pre- processing materials using encapsulation technologies - Google Patents

Pre- processing materials using encapsulation technologies Download PDF

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Publication number
WO2007145972A3
WO2007145972A3 PCT/US2007/013280 US2007013280W WO2007145972A3 WO 2007145972 A3 WO2007145972 A3 WO 2007145972A3 US 2007013280 W US2007013280 W US 2007013280W WO 2007145972 A3 WO2007145972 A3 WO 2007145972A3
Authority
WO
WIPO (PCT)
Prior art keywords
mill scale
volatile gases
heated
heat
gases
Prior art date
Application number
PCT/US2007/013280
Other languages
French (fr)
Other versions
WO2007145972A2 (en
Inventor
Leonard Reiffel
Original Assignee
Leonard Reiffel
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 Leonard Reiffel filed Critical Leonard Reiffel
Priority to US12/308,030 priority Critical patent/US20090193933A1/en
Publication of WO2007145972A2 publication Critical patent/WO2007145972A2/en
Publication of WO2007145972A3 publication Critical patent/WO2007145972A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
    • C21B13/105—Rotary hearth-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • C21C5/565—Preheating of scrap
    • 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
    • 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
    • C22B7/02—Working-up flue dust
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2200/00—Recycling of non-gaseous waste material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
    • C21C2007/0062—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires with introduction of alloying or treating agents under a compacted form different from a wire, e.g. briquette, pellet
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2200/00—Recycling of waste material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • 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)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

A method and apparatus for conducting a metallurgical process. In one form, iron oxides in the form of mill scale is placed in a container and subjected to heat thereby largely reducing the mill scale and largely converting it to metallic iron that can then be used in steel making processes, such as electric arc furnaces and the like. In one form, the container prevents volatile gases (such as gases given off when oily mill scale is heated) for a sufficient time so that the volatile gases heated to a high enough temperature to maximize pyrolysis and decomposition. In one form, vents are provided in the containers that are aligned with collection vents in the heating furnace so that any volatile gases may be easily removed without loss of large quantities of heat.
PCT/US2007/013280 2006-06-05 2007-06-05 Pre- processing materials using encapsulation technologies WO2007145972A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/308,030 US20090193933A1 (en) 2006-06-05 2007-06-05 Pre-Processing Materials Using Encapsulation Technologies

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US81100306P 2006-06-05 2006-06-05
US60/811,003 2006-06-05
US85974006P 2006-11-17 2006-11-17
US60/859,740 2006-11-17

Publications (2)

Publication Number Publication Date
WO2007145972A2 WO2007145972A2 (en) 2007-12-21
WO2007145972A3 true WO2007145972A3 (en) 2008-02-07

Family

ID=38832341

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/013280 WO2007145972A2 (en) 2006-06-05 2007-06-05 Pre- processing materials using encapsulation technologies

Country Status (2)

Country Link
US (1) US20090193933A1 (en)
WO (1) WO2007145972A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8690986B2 (en) * 2010-09-03 2014-04-08 Forest Vue Research, Llc Method for simultaneously producing iron, coke, and power
WO2017115219A1 (en) * 2015-12-29 2017-07-06 Sabic Global Technologies B.V. Systems and methods for feeding manufacturing by-products to a furnace
EP3045549B1 (en) * 2016-03-14 2018-11-07 Mohammad Reza Saharkhiz Method to produce an encapsulated pressed reduced iron compound and encapsulated pressed reduced iron compound

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918956A (en) * 1966-11-04 1975-11-11 Jesse J Baum Reduction method
US4747872A (en) * 1984-03-15 1988-05-31 Hylsa, S.A. Process and apparatus for producing high purity iron
US20050274224A1 (en) * 2004-06-12 2005-12-15 Leonard Reiffel Method and apparatus for carrying out a metallurgical process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6775137B2 (en) * 2002-11-25 2004-08-10 International Business Machines Corporation Method and apparatus for combined air and liquid cooling of stacked electronics components
US20050147874A1 (en) * 2003-12-10 2005-07-07 Johnson Controls Technolgy Company Venting system for battery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918956A (en) * 1966-11-04 1975-11-11 Jesse J Baum Reduction method
US4747872A (en) * 1984-03-15 1988-05-31 Hylsa, S.A. Process and apparatus for producing high purity iron
US20050274224A1 (en) * 2004-06-12 2005-12-15 Leonard Reiffel Method and apparatus for carrying out a metallurgical process

Also Published As

Publication number Publication date
WO2007145972A2 (en) 2007-12-21
US20090193933A1 (en) 2009-08-06

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