METHOD FOR PRODUCING SULFATE CEMENT OR SULFATE CEMENT AGGREGATES

    公开(公告)号:HU0302627A2

    公开(公告)日:2003-11-28

    申请号:HU0302627

    申请日:1998-03-12

    Inventor: EDLINGER ALFRED

    Abstract: PCT No. PCT/AT98/00066 Sec. 371 Date Dec. 8, 1998 Sec. 102(e) Date Dec. 8, 1998 PCT Filed Mar. 12, 1998 PCT Pub. No. WO98/34469 PCT Pub. Date Aug. 13, 1998Sulfate cement or sulfate cement aggregates are produced herein by a process in which hydraulically active synthetic slags having slag basicities CaO/SiO2 of between 1.35 and 1.6, Al2O3 contents of 10% by weight to 20% by weight, and iron oxide contents of below 2.5% by weight are mixed with an earth alkali sulfate in an amount of 5% by weight to 20% by weight, based on the overall weight of the mixture. The hydraulically active synthetic slags can be made by mixing at least one member selected from the group consisting of waste incineration slags and blast furnace slags with steel slags to produce a melt and reducing metal oxides contained in the melt. The earth alkali sulfate is selected from the group consisting of crude gypsum, waste gas gypsum, smoke gas desulfurization plant gypsum, gypsum, or anhydrite in ground or comminuted form.

    Treatment process of steelwork slags

    公开(公告)号:CZ200198A3

    公开(公告)日:2002-02-13

    申请号:CZ20010098

    申请日:2000-04-14

    Inventor: EDLINGER ALFRED

    Abstract: A method for processing steel slags and optionally iron carriers such as, e.g., electric furnace slags, converter slags, dusts derived from steel production, mill scale or secondary metallurgical residues, in which the molten steel slags or iron carriers are supplemented with chromium ores or chromium-containing and/or nickel-containing dusts in order to adjust a slag basicity of 1.2 to 1.6, whereby the bath temperature is maintained at above 1600° C., in particular between 1650° C. and 1800° C., and a carbon-containing iron bath is provided or formed. In addition to environmentally safe slags, a high-grade ferrochromium alloy may be recovered, thus enhancing the economy of the method.

    124.
    发明专利
    未知

    公开(公告)号:PT754245E

    公开(公告)日:2001-09-27

    申请号:PT96901631

    申请日:1996-02-07

    Inventor: EDLINGER ALFRED

    Abstract: PCT No. PCT/AT96/00019 Sec. 371 Date Sep. 24, 1996 Sec. 102(e) Date Sep. 24, 1996 PCT Filed Feb. 7, 1996 PCT Pub. No. WO96/24696 PCT Pub. Date Aug. 15, 1996To produce pig iron or steel and cement clinker from slags it has been proposed to react iron-oxide containing liquid slags, such as, e.g., steelworks slag, with iron oxide carriers, such as, e.g., ores, cinders or the like and lime to a ferrite-containing slag and to reduce the formed ferrite slag in a reduction reactor, such as, e.g., an iron bath reactor, whereupon the sinter phase is discharged as a clinker.

    METHOD FOR PROCESSING STEEL SLAGS
    125.
    发明专利

    公开(公告)号:SK19172000A3

    公开(公告)日:2001-08-06

    申请号:SK19172000

    申请日:2000-04-14

    Inventor: EDLINGER ALFRED

    Abstract: A method for processing steel slags and optionally iron carriers such as, e.g., electric furnace slags, converter slags, dusts derived from steel production, mill scale or secondary metallurgical residues, in which the molten steel slags or iron carriers are supplemented with chromium ores or chromium-containing and/or nickel-containing dusts in order to adjust a slag basicity of 1.2 to 1.6, whereby the bath temperature is maintained at above 1600° C., in particular between 1650° C. and 1800° C., and a carbon-containing iron bath is provided or formed. In addition to environmentally safe slags, a high-grade ferrochromium alloy may be recovered, thus enhancing the economy of the method.

    PROCESS FOR PRODUCING PIG IRON AND CEMENT CLINKER

    公开(公告)号:SK281585B6

    公开(公告)日:2001-05-10

    申请号:SK114594

    申请日:1994-01-26

    Inventor: EDLINGER ALFRED

    Abstract: PCT No. PCT/AT94/00007 Sec. 371 Date Sep. 20, 1994 Sec. 102(e) Date Sep. 20, 1994 PCT Filed Jan. 26, 1994 PCT Pub. No. WO94/17214 PCT Pub. Date Aug. 4, 1994.In a process for the preparation of pig iron and cement clinker in a fusion gasifier (3) in which the charge is at least partly preheated and possibly deacidified and subjected to preliminary reduction or is used in the form of scrap, coal is blown into a fluidized bed (7) and gasified with the reduction of the charge and pig iron (8) and slag (9) are tapped off in liquid form, the procedure is such that the lime charge introduced into the fusion gasifier (3), possibly together with a portion of an iron ore, is preheated in a preheating shaft (1) and calcined and charged according to the clinker composition required.

    127.
    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.

    PROCESS AND DEVICE FOR GRANULATING AND CRUSHING MOLTEN MATERIALS AND GRINDING STOCKS.

    公开(公告)号:GR3032934T3

    公开(公告)日:2000-07-31

    申请号:GR20000400630

    申请日:2000-03-10

    Inventor: EDLINGER ALFRED

    Abstract: PCT No. PCT/AT94/00185 Sec. 371 Date Aug. 31, 1995 Sec. 102(e) Date Aug. 31, 1995 PCT Filed Dec. 1, 1994 PCT Pub. No. WO95/15402 PCT Pub. Date Jun. 8, 1995A molten melt of slag and grinding material is introduced into a mixing chamber to which a cooling and mixing agent is injected, the agent being compressed air, water or an air/water mixture which serves to cool the melt and form vapor and solidified particles. These are passed through a diffuser and are discharged as a jet which is directed to particle disintegrating means.

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