子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Reduction processing apparatus for steel-making slag and reduction processing system for steel-making slag | US14353961 | 2013-06-27 | US09238846B2 | 2016-01-19 | Toshiya Harada; Takashi Arai; Hiroki Fukumura |
| This reduction processing apparatus for a steel-making slag that continuously performs reduction processing to a hot steel-making slag by using an electric furnace includes: a slag-supplying container that charges the hot steel-making slag into the electric furnace; an electrode that is provided at the electric furnace and heats a molten slag layer on a molten iron produced by reducing the hot steel-making slag; an auxiliary-raw-material supplying unit that supplies an auxiliary-raw-material including a reducing agent to the molten slag layer; and a tilting unit that tilts the slag-supplying container and adjusts a charging amount of the hot steel-making slag to the electric furnace. | ||||||
| 102 | METHOD OF FIXING CARBON DIOXIDE | US14477018 | 2014-09-04 | US20140377141A1 | 2014-12-25 | Sung Yeup Chung; Ki Chun Lee; Min Ho Cho; Seok Gyu Sonh; Dong Cheol Park |
| A method and system of fixing carbon dioxide is provided. After metal ion components are extracted from, e.g., natural mineral or steel slag through acid treatment, carbon dioxide is injected to fix carbon dioxide by carbonating the same. Since the procedure of pH adjustment is unnecessary, the reaction is carried out effectively and a continuous process is enabled. Accordingly, the disclosed method of fixing carbon dioxide enables effective removal of carbon dioxide produced from the steelmaking industry, thereby significantly reducing greenhouse gas emission and allowing recycling of the discarded steel slag. | ||||||
| 103 | METHOD FOR REDUCING SLAG | US14446283 | 2014-07-29 | US20140331820A1 | 2014-11-13 | Joon-Seong Ki; Dong-Kyung Shin; Byung-Don You; Seong-Woong Joo; Seong-Hun Hong; Jin-Ill Hwang |
| Disclosed herein is a method of reducing slag, including the steps of: examining the components of slag to be reduced, and setting a target composition ratio after reduction; determining the mixing ratio and input amount of a complex reducing agent of a plurality of reducing agents in accordance with the set target composition ratio to determine the complex reducing agent; and supplying the complex reducing agent into molten slag to reduce the slag. The method is advantageous in that the reduction efficiency of slag can be maximized, various kinds of reducing agents can be efficiently used, and the recovery amount of valuable metals can be increased, thus reducing cost. | ||||||
| 104 | Method of fixing carbon dioxide | US13080961 | 2011-04-06 | US08845989B2 | 2014-09-30 | Sung Yeup Chung; Ki Chun Lee; Min Ho Cho; Seok Gyu Sonh; Dong Cheol Park |
| A method and system of fixing carbon dioxide is provided. After metal ion components are extracted from, e.g., natural mineral or steel slag through acid treatment, carbon dioxide is injected to fix carbon dioxide by carbonating the same. Since the procedure of pH adjustment is unnecessary, the reaction is carried out effectively and a continuous process is enabled. Accordingly, the disclosed method of fixing carbon dioxide enables effective removal of carbon dioxide produced from the steelmaking industry, thereby significantly reducing greenhouse gas emission and allowing recycling of the discarded steel slag. | ||||||
| 105 | SLAG-SUPPLYING CONTAINER FOR USE IN ELECTRIC FURNACE FOR REDUCTION PROCESSING OF STEEL-MAKING SLAG | US14352925 | 2013-06-27 | US20140247856A1 | 2014-09-04 | Toshiya Harada; Takashi Arai; Hiroki Fukumura |
| This slag-supplying container of an electric furnace for reduction processing of steel-making slag includes: a container body that causes hot steel-making slag to flow to the electric furnace; a slag discharging portion connected with an electric-furnace-side slag-supplying port; a slag receiving portion that receives the hot steel-making slag supplied; a lid that opens and closes the slag receiving portion; an exhausting portion that discharges exhaust gas from the electric furnace; and, a tilting unit that tilts the container body to adjust the amount of inflow of the hot steel-making slag to the electric-furnace-side slag-supplying port. | ||||||
| 106 | METHOD FOR MANUFACTURING FOAM MATERIAL USING MOLTEN SLAG | US13820567 | 2011-09-20 | US20130161854A1 | 2013-06-27 | Qingtao Wang; Xianjin Yu; Xin Zhao; Benkui Gong; Zhenxia Wei; Yueyun Li; Jun Ming |
| A method for manufacturing a foam material by using a molten slag includes: introducing the molten slag maintained at 1400° C.-1500° C. into a pool for preserving heat, and adding a viscosity modifier and/or a color modifier to the molten slag to adjust a viscosity and/or a color a product manufactured. The molten slag is discharged into a foaming pour while adding a foaming agent to the molten slag, while controlling the foam and mold at 1250° C.-1400° C. The foamed and molded slag is maintained at 800° C.-1000° C. for 20-30 minutes in a non-reducing atmosphere, and then naturally cooled to a room temperature to obtain the foam material. The produced inorganic nonmetal foam material and products thereof have such characteristics as stable color quality, abrasion resistance, pressure resistance, small thermal conductivity, small shrinkage ratio, and excellent sound absorption, adsorption and filtering performances. | ||||||
| 107 | METHOD OF FIXING CARBON DIOXIDE | US13080961 | 2011-04-06 | US20120134902A1 | 2012-05-31 | Sung Yeup Chung; Ki Chun Lee; Min Ho Cho; Seok Gyu Sonh; Dong Cheol Park |
| A method and system of fixing carbon dioxide is provided. After metal ion components are extracted from, e.g., natural mineral or steel slag through acid treatment, carbon dioxide is injected to fix carbon dioxide by carbonating the same. Since the procedure of pH adjustment is unnecessary, the reaction is carried out effectively and a continuous process is enabled. Accordingly, the disclosed method of fixing carbon dioxide enables effective removal of carbon dioxide produced from the steelmaking industry, thereby significantly reducing greenhouse gas emission and allowing recycling of the discarded steel slag. | ||||||
| 108 | Hydraulic mineral composition, production method thereof and hydraulic binders and cementitious products containing one such composition | US10583549 | 2004-12-16 | US07771507B2 | 2010-08-10 | François Sorrentino; Michel Gimenez |
| The invention relates to a hydraulic mineral composition which is characterized in that it comprises a vitreous or crystallised matrix based on magnesium and calcium silico-aluminates which represent at least 25 wt.-%, and preferably 30 wt.-%, of the composition, one or more mineral oxides and optionally one or more specific mineral halides which are selected from among the oxides and halides of Ti, V, Cr, Mn, Co, Ni, Cu, Pb, Ba, Sr, P, S, Na, K, Zr, Mo, Be, Tl, As, Sn and Cd and which represent at least 5 wt.-% of the composition, at most 31 wt.-% alumina (Al2O3), less than 10 wt.-% ferrite, and less than 0.05 wt.-%, and preferably less than 0.01 wt.-%, C in relation to the weight of the composition. | ||||||
| 109 | Method For Reducing And/Or Refining A Metal-Containing Slag | US11921583 | 2006-06-08 | US20090114063A1 | 2009-05-07 | Jurgen Kunze; Rolf Degel; Dieter Borgwardt; Andrzej Warczok; Gabriel Angel Riveros Urzua; Marco Antonio Caceres Rivera; Roberto Marcelo Parada Araya |
| The invention relates to a method for reducing and/or refining a metal-containing slag. The aim of the invention is to improve reduction of the slag. For this purpose, calcium carbide (CaC2) is added to the slag as the reducing agent. | ||||||
| 110 | Method and device for pulverizing and granulating melts | US10648959 | 2003-08-27 | US07240520B2 | 2007-07-10 | Alfred Edlinger |
| In a process for pulverizing and granulating melts, especially oxidic slag, glass, or thermoplastic melts, in which the melts are heated with burner (6) in an antechamber (5) and ejected as a shroud surrounding a propellant stream into a granulating chamber (11), hot combustion gases from the antechamber (5) are mixed with the propellant stream. | ||||||
| 111 | Method for oxidizing treatment of steel plant slag to obtain cement-based materials | US10467024 | 2002-02-01 | US06946014B2 | 2005-09-20 | Valerie Michaud Poupardin; Francois Sorrentino |
| A method for treating a raw steel plant slag to transform it into a hydraulic binder at least equivalent to a Portland cement clinker, comprises the following steps: oxidizing treatment with input of oxygen, air or a mixture thereof at a pressure ranging between 1 to 15 bars, at a temperature ranging between 1650 and 1400° C., of raw steel slag containing, relative to the raw slag total weight, at least 45 wt. % of CaO and less than 30 wt. % of Fe2O3; and adding to the slag a lime source optionally with silica and/or alumina, so that the slag, after tranformation and at room temperature, has a propotion of Fe2O3 of less than 13 wt. % and a mineralogical composition comprising at least 40 wt. % in C3S mineralogical phase and more than 10 wt. %, of calcium ferrite, relative to the final slag total weight. | ||||||
| 112 | Method for oxidizing treatment of steel plant slag to obtain cement-based materials | US10467024 | 2003-12-30 | US20040093988A1 | 2004-05-20 | Val?eacute;rie Michaud Poupardin; Francois Sorrentino |
| A process for treating a raw steel industry slag, for converting same into a hydraulic binder at least equivalent to a Portland cement clinker, comprising: an oxidative treatment process with an oxygen or air supply, or their mixture at a pressure ranging from 1 to 15 bars, preferably from 5 and 10 bars, at a temperature ranging from 1,650null to 1,400null C., preferably ranging from 1,550null C. to 1,450null C., more preferably equal to 1,500null C., of a raw steel industry slag containing, based on the raw slag total weight, at least 45% in weight of CaO and less than 30% in weight of Fe2O3; and the addition, to such a slag, of a lime source supplemented, if necessary, with a silica source and/or an alumina source, the proportions of the lime source and, optionally, of the silica and/or alumina sources being selected such that the slag has, after conversion and at room temperature, a Fe2O3 rate of at least 13% in weight and a mineral composition comprising at least 40% in weight of the C3S mineralogical phase and more than 10% in weight, preferably at least 40% in weight, of calcium ferrite in the form of a C2F and/or C4AF mineral phase, based on the final treated slag total weight. | ||||||
| 113 | Method for producing puzzolanic binders for the cement industry from steel slags using a reduction metal bath | US10182046 | 2002-10-28 | US06676747B2 | 2004-01-13 | Alfred Edlinger |
| In a method for producing puzzolanic or hydraulic grinding additives for the cement industry from basic oxidic slags, in particular steel slags, using a metal bath for the reduction of metal oxides contained in the slags, the basicities of the liquid slags are adjusted to values lying 0.1 to 0.5 below the basicity value (CaO/SiO2) of the target slag prior to the reduction by adding acidic corrective substances such as, e.g., quartz sand and/or blast furnace slag and/or SiO2-containing corrective substances. | ||||||
| 114 | Device for atomizing liquid melts | US09959060 | 2001-10-16 | US06660223B2 | 2003-12-09 | Alfred Edlinger |
| In a device for atomizing liquid melts, in particular oxidic slags or glasses, including a slag tundish and an outlet opening into which a lance is immersed to inject gases or vapor while forming an annular gap, the lance (3) is comprised of two coaxial tubes (4, 5) which are separately displaceable in the axial direction and fixable in their respective axially displaced positions. | ||||||
| 115 | Method for treating slags or slag mixtures on an iron bath | US10182057 | 2002-10-29 | US20030140732A1 | 2003-07-31 | Alfred Edlinger |
| In a method for treating slags or slag mixtures having iron oxide contents of >5 wt. -%, in particular steelworks slags, in which the steel slags optionally mixed with other slags are charged onto a metal bath, a steel bath having a carbon content of <1.5 wt. -%, preferably <0.5 wt. -%, is used as the metal bath and the steel bath, after the charging of the steel slags, is carburized to above 2.0 wt. -% C, preferably >2.5 wt. -% C, by introducing carbon or carbon carriers. | ||||||
| 116 | Process for casting and forming slag products | US09353034 | 1999-07-13 | US06311522B1 | 2001-11-06 | Richard Berry; Brian Reeves |
| The present invention relates to a process and apparatus to cast and form slag directly from the molten state into crystalline or amorphous products suitable for use as decorative and structural building and construction materials. Molten slag and additives are refined at high temperature in a treatment furnace for a period of hours. The eventual entrapped gas content is controlled using a variety of methods, such as vacuum pressures and bottom stirring with inert gas. The molten slag is cast directly into moulds, and these moulds form the slag into any shape desired. The formed products are immediately introduced into a heat treatment furnace at temperatures at or above the glass transition temperature (GTT) for the case of crystalline products, or just below the GTT for amorphous products. The product is thermally cycled over a period of hours to relieve thermal stresses during cooling to ambient temperatures. If desired, the product can be coated using enamel or glaze and cured in another furnace, or metal plated. | ||||||
| 117 | Method of de-chroming and/or depleting the MgO content of steel slag | US09297185 | 1999-04-23 | US06251160B1 | 2001-06-26 | Alfred Edlinger |
| In a process for dechroming, and/or depleting the MgO content of, steel slags, oxygen is introduced into the liquid steel slag to an extent sufficient for converting iron quantitatively to iron oxide and at least 5% by weight of the iron oxide contained in the slag to iron-III-oxide. The oxidized slag obtained solidifies and is disintegrated, whereupon the paramagnetic portions formed are magnetically isolated and separated from the dechromed slag. | ||||||
| 118 | Process for producing sulfate cement or sulfate cement aggregates | US202063 | 1998-12-08 | US6139621A | 2000-10-31 | Alfred Edlinger |
| Sulfate cement or sulfate cement aggregates are produced herein by a process in which hydraulically active synthetic slags having slag basicities CaO/SiO.sub.2 of between 1.35 and 1.6, Al.sub.2 O.sub.3 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. | ||||||
| 119 | Method of making cement from base metal smelter slag | US74794 | 1998-05-08 | US5968258A | 1999-10-19 | David Krofchak |
| A method of making cement from base metal smelter slag produced by a nickel, copper, lead or zinc smelter, includes crushing the slag with a source of calcium sulphate to a size of less than about 1/4 inch and heating the mixture to produce a cement, and grinding the cement to a size in the range of from about -250 to about 425 mesh. | ||||||
| 120 | Method of manufacturing pig iron or steel and cement clinker from slags | US718304 | 1996-09-24 | US5944870A | 1999-08-31 | Alfred Edlinger |
| To 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. | ||||||
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