27.
    发明专利
    未知

    公开(公告)号:DK0770149T3

    公开(公告)日:1999-09-13

    申请号:DK96910851

    申请日:1996-04-30

    Abstract: PCT No. PCT/AT96/00085 Sec. 371 Date Dec. 31, 1996 Sec. 102(e) Date Dec. 31, 1996 PCT Filed May 30, 1996 PCT Pub. No. WO96/34989 PCT Pub. Date Nov. 7, 1996In a process for the production of hydraulic binders, crude steel and/or alloys, such as, e.g., FeCr or FeV, from basic steel slags containing chromium and/or vanadium, the liquid steel slag is mixed with an additive selected from the group consisting of blast furnace slag, electric arc furnace slag, dusts from steel production, metallic waste substances or refuse incineration residues and/or with acid additives for lowering the viscosity, whereupon steel is sedimented out of the liquid slag and the remaining slag in a first reduction stage is reduced to metallic iron having an iron oxide content of below 5 wt. % and above 1 wt. %, whereupon the remaining slag melt in a second reduction stage having a higher reduction potential as compared to the first reduction stage is further reduced to metallic Cr or V or ferroalloys thereof and the hydraulically active slag is separated.

    28.
    发明专利
    未知

    公开(公告)号:BR9403854A

    公开(公告)日:1999-07-27

    申请号:BR9403854

    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.

    PROCESS FOR PRODUCING HYDRAULIC BINDERS AND/OR ALLOYS, E.G. FERROCHROMIUM OR FERROVANADIUM

    公开(公告)号:GR3029712T3

    公开(公告)日:1999-06-30

    申请号:GR990400799

    申请日:1999-03-16

    Abstract: PCT No. PCT/AT96/00085 Sec. 371 Date Dec. 31, 1996 Sec. 102(e) Date Dec. 31, 1996 PCT Filed May 30, 1996 PCT Pub. No. WO96/34989 PCT Pub. Date Nov. 7, 1996In a process for the production of hydraulic binders, crude steel and/or alloys, such as, e.g., FeCr or FeV, from basic steel slags containing chromium and/or vanadium, the liquid steel slag is mixed with an additive selected from the group consisting of blast furnace slag, electric arc furnace slag, dusts from steel production, metallic waste substances or refuse incineration residues and/or with acid additives for lowering the viscosity, whereupon steel is sedimented out of the liquid slag and the remaining slag in a first reduction stage is reduced to metallic iron having an iron oxide content of below 5 wt. % and above 1 wt. %, whereupon the remaining slag melt in a second reduction stage having a higher reduction potential as compared to the first reduction stage is further reduced to metallic Cr or V or ferroalloys thereof and the hydraulically active slag is separated.

    Process for granulating and comminuting molten material and device for carrying out this process

    公开(公告)号:ZA989596B

    公开(公告)日:1999-04-23

    申请号:ZA989596

    申请日:1998-10-21

    Inventor: EDLINGER ALFRED

    Abstract: PCT No. PCT/AT98/00243 Sec. 371 Date Jun. 29, 1999 Sec. 102(e) Date Jun. 29, 1999 PCT Filed Oct. 14, 1998 PCT Pub. No. WO99/22031 PCT Pub. Date May 6, 1999In a process for granulating and comminuting molten material, the slag melt is acted upon by compressed water and discharged together with the vapour formed. The liquid slag is introduced into a granulation chamber in a free flowing jet while directing compressed water jets against the slag jet, whereupon the solidified and granulated slag is conducted through a pneumatic conveyor duct and a distributor along with the vapour formed. The partial streams leaving the distributor, via conically tapering nozzles are transferred into a grinding space exhibiting a lower pressure than the granulation space and from which the comminuted and solidified material is drawn off.

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