METHOD OF PRODUCING PIG IRON, ALLOYS OF FERROUS METAL AND/OR NONFERROUS METAL WITH SYNTHETIC BLAST FURNACE SLAG FROM RESIDUES OF INCINERATED WASTE AND STEELWORKS SLAG

    公开(公告)号:HU9800458A2

    公开(公告)日:1998-09-28

    申请号:HU9800458

    申请日:1997-01-16

    Abstract: PCT No. PCT/AT97/00006 Sec. 371 Date Sep. 16, 1997 Sec. 102(e) Date Sep. 16, 1997 PCT Filed Jan. 16, 1997 PCT Pub. No. WO97/26381 PCT Pub. Date Jul. 24, 1997In a process for producing pig iron, nonferrous heavy metal alloys, ferrochromium carbure or carbon-free ferrochromium and synthetic blast furnace slags, using metal-oxide-containing waste incineration residues or slags, the charging materials of waste burning, e.g., car shredder light fractions and/or metallurgical dusts, are at least partially oxidized and subsequently are reduced while separating nonferrous metals or alloys, whereupon the oxidic slag phase depleted from metals or alloys is mixed with liquid steelworks slag optionally upon further addition of metallurgical dusts, whereupon crude steel is drawn off while lowering the viscosity of the steelworks slag and the remaining slag portion is subjected to further reduction while recovering pig iron and optionally Fe chromium alloys, whereupon the resulting synthetic blast furnace slag is discharged.

    8.
    发明专利
    未知

    公开(公告)号:ES2152647T3

    公开(公告)日:2001-02-01

    申请号:ES97900140

    申请日:1997-01-16

    Abstract: PCT No. PCT/AT97/00006 Sec. 371 Date Sep. 16, 1997 Sec. 102(e) Date Sep. 16, 1997 PCT Filed Jan. 16, 1997 PCT Pub. No. WO97/26381 PCT Pub. Date Jul. 24, 1997In a process for producing pig iron, nonferrous heavy metal alloys, ferrochromium carbure or carbon-free ferrochromium and synthetic blast furnace slags, using metal-oxide-containing waste incineration residues or slags, the charging materials of waste burning, e.g., car shredder light fractions and/or metallurgical dusts, are at least partially oxidized and subsequently are reduced while separating nonferrous metals or alloys, whereupon the oxidic slag phase depleted from metals or alloys is mixed with liquid steelworks slag optionally upon further addition of metallurgical dusts, whereupon crude steel is drawn off while lowering the viscosity of the steelworks slag and the remaining slag portion is subjected to further reduction while recovering pig iron and optionally Fe chromium alloys, whereupon the resulting synthetic blast furnace slag is discharged.

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