US20110197713A1 - Recarburisation method - Google Patents

Recarburisation method Download PDF

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Publication number
US20110197713A1
US20110197713A1 US13/057,955 US200913057955A US2011197713A1 US 20110197713 A1 US20110197713 A1 US 20110197713A1 US 200913057955 A US200913057955 A US 200913057955A US 2011197713 A1 US2011197713 A1 US 2011197713A1
Authority
US
United States
Prior art keywords
carbon
ladle
polymer
alloy
furnace
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.)
Abandoned
Application number
US13/057,955
Other languages
English (en)
Inventor
Veena Sahajwalla
Paul O'kane
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.)
NewSouth Innovations Pty Ltd
Original Assignee
NewSouth Innovations Pty Ltd
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 AU2008904040A external-priority patent/AU2008904040A0/en
Application filed by NewSouth Innovations Pty Ltd filed Critical NewSouth Innovations Pty Ltd
Assigned to NEWSOUTH INNOVATIONS PTY LIMITED reassignment NEWSOUTH INNOVATIONS PTY LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: O'KANE, PAUL, SAHAJWALLA, VEENA
Publication of US20110197713A1 publication Critical patent/US20110197713A1/en
Abandoned legal-status Critical Current

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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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • 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
    • 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
    • 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
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • 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
    • C21C5/5264—Manufacture of alloyed steels including ferro-alloys
    • 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
    • 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
    • C21C7/0025—Adding carbon 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
    • C21C7/0025—Adding carbon material
    • C21C2007/0031—Adding carbon material being plastics, organic compounds, polymers
    • 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
    • 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

Definitions

  • the carbon-containing polymer is a waste plastic or rubber.
  • the waste plastic can comprise polyethylene (e.g. HDPE), and other plastics such as polypropylene, polystyrene, poly butadiene styrene, ABS, etc, as well as difficult to re-process plastics such as Bakelite, etc.
  • the rubber can be derived from a used tyre or belt. The belt can be a used/discarded rubber conveyor belt.
  • the ladle or ladle furnace forms part of an electric arc steelmaking process, with the ladle receiving molten ferro-alloy from the electric arc furnace, and with the ladle furnace receiving molten ferro-alloy from the ladle.
  • the time generator started counting once the metal melted and formed a liquid drop.
  • the sample was quenched after 1, 2, 4, 8, 15, 20, 30 and 60 minutes.
  • the reaction inside the furnace was observed using a CCD camera.
  • the carbon content contained in the droplet was measured using a carbon-sulphur LECO analyser (model CS 230 ).
  • the horizontal tube furnace schematic is presented in FIG. 3 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
US13/057,955 2008-08-07 2009-08-07 Recarburisation method Abandoned US20110197713A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2008904040 2008-08-07
AU2008904040A AU2008904040A0 (en) 2008-08-07 Recarburisation method
PCT/AU2009/001018 WO2010015041A1 (en) 2008-08-07 2009-08-07 Recarburisation method

Publications (1)

Publication Number Publication Date
US20110197713A1 true US20110197713A1 (en) 2011-08-18

Family

ID=41663229

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/057,955 Abandoned US20110197713A1 (en) 2008-08-07 2009-08-07 Recarburisation method

Country Status (12)

Country Link
US (1) US20110197713A1 (es)
EP (1) EP2321435A4 (es)
JP (1) JP2011530007A (es)
KR (1) KR20110053984A (es)
CN (1) CN102216473A (es)
AU (1) AU2009279383A1 (es)
BR (1) BRPI0916981A2 (es)
CA (1) CA2733085A1 (es)
MX (1) MX2011001454A (es)
NZ (1) NZ591240A (es)
WO (1) WO2010015041A1 (es)
ZA (1) ZA201101329B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10323291B2 (en) 2014-07-31 2019-06-18 Sabic Global Technologies B.V. Methods for utilizing olefin coke in a steel making process and products made therefrom
CN105969940A (zh) * 2016-06-29 2016-09-28 农杰 生铁铸件的制备方法
CN105969929A (zh) * 2016-06-29 2016-09-28 农杰 生铁铸件的改质方法
CN106011374A (zh) * 2016-06-29 2016-10-12 农杰 改善生铁铸件的抗磨损性能的方法
CN106350635B (zh) * 2016-08-30 2018-11-23 河南太行全利重工股份有限公司 一种利用废塑料和废橡胶制作电弧炉炼钢用泡沫渣的方法
CN111705172A (zh) * 2020-06-04 2020-09-25 宁夏众城新能源科技有限公司 一种石墨增碳剂及其制备方法
CN116479210A (zh) * 2023-03-19 2023-07-25 新疆八一钢铁股份有限公司 一种转炉冶炼中高碳钢的复合增碳方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020005083A1 (en) * 1997-06-27 2002-01-17 Voest-Alpine Industrieanlagenbau Gmbh Process for the production of metal melts
US6837916B2 (en) * 1997-12-26 2005-01-04 Nkk Corporation Smelting reduction method
US20050229743A1 (en) * 2004-04-20 2005-10-20 Accelerated Technologies Corporation Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1077661A (en) * 1962-04-05 1967-08-02 British Oxygen Co Ltd Treatment of ferrous metals
JPS5217807B2 (es) * 1973-06-29 1977-05-18
US4889556A (en) * 1988-08-01 1989-12-26 Westinghouse Electric Corp. Method of recycling steel belted tires
US5322544A (en) * 1992-05-29 1994-06-21 Nucor Corporation Melting a mixture of scrap metal using scrap rubber
RU2107738C1 (ru) * 1996-01-09 1998-03-27 Московский металлургический завод "Серп и молот" Способ выплавки стали из металлолома в дуговой электропечи
US20030066387A1 (en) * 2001-10-10 2003-04-10 Stebbing Franklin Leroy Method of melting a mixture of scrap metal using scrap rubber
JP2002241830A (ja) * 2001-02-13 2002-08-28 Daido Steel Co Ltd 製鋼原料とする溶湯の製造方法
JP2003183723A (ja) * 2001-12-13 2003-07-03 Jfe Engineering Kk 金属Ａｌを含むプラスチック容器のリサイクル処理方法及び製鋼方法
JP2005036098A (ja) * 2003-07-14 2005-02-10 Dainen Co Ltd 廃プラスチック熱分解物バインダー及びその製造法。
NZ554303A (en) * 2004-09-03 2010-08-27 Newsouth Innovations Pty Ltd Production of ferro-alloys with charge of un-agglomerated polymer
CN101035920A (zh) * 2004-09-03 2007-09-12 纽索思创新有限公司 铁合金的生产

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020005083A1 (en) * 1997-06-27 2002-01-17 Voest-Alpine Industrieanlagenbau Gmbh Process for the production of metal melts
US6837916B2 (en) * 1997-12-26 2005-01-04 Nkk Corporation Smelting reduction method
US20050229743A1 (en) * 2004-04-20 2005-10-20 Accelerated Technologies Corporation Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Davis,Joesph R. ed. "recarburize". Glossary of Metallurgical and Metalworking Terms. Metals Handbook Desk Edition. Page 199. 2002. Downloaded 09/09/2013 from http://products.asminternational.org/hbk/do/highlight/content/MH/D50/A01/index.html *

Also Published As

Publication number Publication date
BRPI0916981A2 (pt) 2018-02-14
KR20110053984A (ko) 2011-05-24
NZ591240A (en) 2013-01-25
CN102216473A (zh) 2011-10-12
EP2321435A4 (en) 2012-04-25
MX2011001454A (es) 2011-04-14
JP2011530007A (ja) 2011-12-15
ZA201101329B (en) 2012-05-30
WO2010015041A1 (en) 2010-02-11
EP2321435A1 (en) 2011-05-18
AU2009279383A1 (en) 2010-02-11
CA2733085A1 (en) 2010-02-11

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Owner name: NEWSOUTH INNOVATIONS PTY LIMITED, AUSTRALIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SAHAJWALLA, VEENA;O'KANE, PAUL;SIGNING DATES FROM 20110506 TO 20110509;REEL/FRAME:026243/0409

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION