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WO1997022975A3 - Process for using contaminated metal parts - Google Patents

Process for using contaminated metal parts Download PDF

Info

Publication number
WO1997022975A3
WO1997022975A3 PCT/DE1996/002309 DE9602309W WO9722975A3 WO 1997022975 A3 WO1997022975 A3 WO 1997022975A3 DE 9602309 W DE9602309 W DE 9602309W WO 9722975 A3 WO9722975 A3 WO 9722975A3
Authority
WO
WIPO (PCT)
Prior art keywords
slag
metal parts
melt
contaminated metal
added
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.)
Ceased
Application number
PCT/DE1996/002309
Other languages
German (de)
French (fr)
Other versions
WO1997022975A2 (en
Inventor
Ernst Haas
Nikolaus Neudert
Roland Hofmann
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to AU18681/97A priority Critical patent/AU1868197A/en
Publication of WO1997022975A2 publication Critical patent/WO1997022975A2/en
Publication of WO1997022975A3 publication Critical patent/WO1997022975A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/30—Processing
    • 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
    • C21C5/36—Processes yielding slags of special composition
    • 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
    • C22B7/04—Working-up slag
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention relates to a process for using metal parts which are radioactively contaminated during which the metal parts are melted down. A slag former is added thereby forming a liquid melt and a slag. The slag is subsequently separated from the melt. This process is characterized in that after separation of the slag the slag former is added to the melt again as long as it is still liquid and that the formed slag is once more separated from the melt.
PCT/DE1996/002309 1995-12-18 1996-12-02 Process for using contaminated metal parts Ceased WO1997022975A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU18681/97A AU1868197A (en) 1995-12-18 1996-12-02 Process for using contaminated metal parts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995147298 DE19547298A1 (en) 1995-12-18 1995-12-18 Process for recycling contaminated metal parts
DE19547298.5 1995-12-18

Publications (2)

Publication Number Publication Date
WO1997022975A2 WO1997022975A2 (en) 1997-06-26
WO1997022975A3 true WO1997022975A3 (en) 1997-08-14

Family

ID=7780483

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/002309 Ceased WO1997022975A2 (en) 1995-12-18 1996-12-02 Process for using contaminated metal parts

Country Status (4)

Country Link
AU (1) AU1868197A (en)
DE (1) DE19547298A1 (en)
WO (1) WO1997022975A2 (en)
ZA (1) ZA9610579B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546332A1 (en) * 1983-05-20 1984-11-23 Wiederaufarbeitung Von Kernbre METHOD OF DECONTAMINATING IRON MITRAIL AND / OR RADIOACTIVITY CONTAMINATED STEEL
JPS60129698A (en) * 1983-12-19 1985-07-10 株式会社日立製作所 Method of melting and decontaminating radioactivity contaminated metal
GB2272566A (en) * 1992-11-17 1994-05-18 Clyde Shaw Ltd Decontamination Method
EP0714103A1 (en) * 1994-11-25 1996-05-29 Doryokuro Kakunenryo Kaihatsu Jigyodan Method for melt-decontaminating metal contaminated with radioactive substance
FR2730091A1 (en) * 1995-02-01 1996-08-02 Commissariat Energie Atomique DECONTAMINATION OF ZIRCALOY USING A SLAG BY A COLD CRUCIBLE MELTING OPERATION WITH CONTINUOUS LINGOT DRAWING

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2546332A1 (en) * 1983-05-20 1984-11-23 Wiederaufarbeitung Von Kernbre METHOD OF DECONTAMINATING IRON MITRAIL AND / OR RADIOACTIVITY CONTAMINATED STEEL
JPS60129698A (en) * 1983-12-19 1985-07-10 株式会社日立製作所 Method of melting and decontaminating radioactivity contaminated metal
GB2272566A (en) * 1992-11-17 1994-05-18 Clyde Shaw Ltd Decontamination Method
EP0714103A1 (en) * 1994-11-25 1996-05-29 Doryokuro Kakunenryo Kaihatsu Jigyodan Method for melt-decontaminating metal contaminated with radioactive substance
FR2730091A1 (en) * 1995-02-01 1996-08-02 Commissariat Energie Atomique DECONTAMINATION OF ZIRCALOY USING A SLAG BY A COLD CRUCIBLE MELTING OPERATION WITH CONTINUOUS LINGOT DRAWING

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE INSPEC INSTITUTE OF ELECTRICAL ENGINEERS, STEVENAGE, GB; XP002032359 *
DATABASE WPI Week 8534, Derwent World Patents Index; AN 85-206156, XP002032360 *
HESHMATPOUR: "decontamination of transuranic contaminated metals by melt refining", NUCL. CHEM. WASTE MANAGE., vol. 4, no. 2, 1993, UK, pages 129 - 134 *

Also Published As

Publication number Publication date
ZA9610579B (en) 1997-06-18
AU1868197A (en) 1997-07-14
DE19547298A1 (en) 1997-06-19
WO1997022975A2 (en) 1997-06-26

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