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1. 发明专利

CA2735256C SULFATE RESISTANT GROUND GRANULATED BLAST FURNACE SLAG, SULFATE RESISTANT CEMENT, AND METHOD OF PRODUCTION OF SAME 未知
公开(公告)号：CA2735256C
公开(公告)日：2013-09-17
申请号：CA2735256
申请日：2009-08-19
申请人： NIPPON STEEL CORP , NIPPON STEEL ESMENT KANTO CO LTD
发明人： IBARAKI TETSUHARU , NAGAO YUKIHIKO
IPC分类号： C04B7/19 , C04B22/10 , C04B22/14
摘要： In sulfate resistant cement obtained by mixing ground granulated blast furnace slag, Portland cement, and high-dissolution rate gypsum for raising the sulfate resistance, the high-dissolution rate gypsum differs in grain size and specific gravity from the Portland cement, so uniform mixture is not easy. To obtain sulfate resistant cement exhibiting homogeneous initial solidification, it is important to uniformly mix the blast furnace slag, Portland cement, and high-dissolution rate gypsum. Therefore, by premixing ground granulated blast furnace slag with an alumina content of 12 to 17.5% with high-dissolution rate gypsum and then mixing in Portland cement, it is possible to obtain uniformly mixed sulfate resistant cement. At this time, the high-dissolution rate gypsum may be hemihydrate gypsum, type III anhydrous gypsum, or anhydrous gypsum with a specific surface area of 8000Blaine or more.

2. 发明专利

CA2679879C SULFATE RESISTANT CEMENT 未知
公开(公告)号：CA2679879C
公开(公告)日：2012-04-24
申请号：CA2679879
申请日：2008-03-06
申请人： NIPPON STEEL CORP , NIPPON STEEL ESMENT KANTO CO LTD
发明人： IBARAKI TETSUHARU , NAGAO YUKIHIKO
IPC分类号： C04B7/19
摘要： Mixed cement containing mainly ground granulated blast furnace slag with an alumina ratio of 12 to 17.5 mass% and Portland cement, wherein a ratio of mixture of the ground granulated blast furnace slag is made 10 to 60 mass% and wherein plaster having a specific surface area of 7000 cm2/g or more is mixed in by a ratio of 2 to 4 mass% converted to SO3 mass. By using this mixed cement as a concrete material, it is possible to suppress expansion of the concrete even if in contact with soil containing residual sulfates over a long period.

3. 发明专利

CA2735256A1 SULFATE RESISTING GROUND GRANULATED BLAST FURNACE SLAG, SULFATE RESISTANT CEMENT, AND METHOD OF PRODUCTION OF SAME 未知
公开(公告)号：CA2735256A1
公开(公告)日：2010-03-04
申请号：CA2735256
申请日：2009-08-19
申请人： NIPPON STEEL CORP , NIPPON STEEL ESMENT KANTO CO LTD
发明人： IBARAKI TETSUHARU , NAGAO YUKIHIKO
IPC分类号： C04B7/19 , C04B22/10 , C04B22/14
摘要： In preparing a sulfate-resisting cement by blending ground granulated blast furnace slag with Portland cement and high-dissolution-rate gypsum serving to enhance sulfate resistance, it is difficult to blend high-dissolution-rate gypsum uniformly with ground granulated blast furnace slag and Portland cement, because the particle size and specific gravity of high-dissolution-rate gypsum are different from those of Portland cement. Uniform blending of blast furnace slag with Portland cement and high-dissolution-rate gypsum is essential in order to prepare a sulfate-resisting cement exhibiting homogeneous early solidification properties. A uniformly blended sulfate-resisting cement can be obtained by pre-blending a ground granulated blast furnace slag having an alumina content of 12 to 17.5% with highdissolution-rate gypsum and then blending the obtained pre-blend with Portland cement. It is preferable that the high-dissolution-rate gypsum is hemihydrate gypsum, III-type anhydrous gypsum, or anhydrous gypsum having a specific surface area of 8000 or above in terms of Blaine value.

4. 发明公开

EP1396551A4 DEVICE AND METHOD FOR TREATING OIL-ADHERED PARTICLES 有权
标题翻译： VORRICHTUNG UND VERFAHREN ZUR BEHANDLUNG VON TEILCHEN MITÖLANHAFTUNGEN
公开(公告)号：EP1396551A4
公开(公告)日：2004-09-08
申请号：EP02733260
申请日：2002-05-30
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUHARU , YAMAMOTO TAKASHI , KONDO SATOSHI , ABE YOSHIHIRO , KATSUMI TOSHIKI
IPC分类号： C22B1/00 , C22B7/00 , C23G1/24 , B01D21/26 , B01F3/12 , B04B1/18
CPC分类号： C22B7/005 , C22B1/005 , Y02P10/212
摘要： A device and a method for removing oil from lubricating oil−adhered fine scales produced in an iron manufacturing process and metal working process and oil−adhered metal particles produced in a metal working process for economically recycling oil−adhered particulates by performing a deoiling treatment, wherein the oil−adhered particulates and oil−adhered metal powder are mixed with water to form slurry, the slurry is sent to a centrifugal separator, the slurry is treated there by a centrifugal force of 300 times a gravity or more to separate the water and oil from the particulates and metal powder by properly setting the volume ratio of the slurry particles to the water and the relation between the centrifugal force and the particle residence time in the centrifugal separator.
摘要翻译：一种用于从铁制造工序和金属加工工序中产生的附着有润滑油的微小氧化皮中去除油的装置和方法以及通过进行除油处理而经济地再循环油附着粒子的金属加工工序中制造的油附着金属粒子，其中将所述油粘附的颗粒和油附着的金属粉末与水混合以形成浆液，将所述浆液送入离心分离器，在300重力或更高的离心力下对浆液进行处理以分离水和通过适当设定浆料颗粒与水的体积比以及离心分离机中离心力与颗粒停留时间之间的关系，从颗粒和金属粉末中除去油。

5. 发明公开

EP1170384A4 FACILITIES FOR REDUCING METAL OXIDE, METHOD FOR OPERATING THE FACILITIES AND MOLDINGS AS LAW MATERIAL TO BE CHARGED TO REDUCTION FURNACE 有权
标题翻译：器件用于减少金属氧化物，METHOD FOR设施运营并形成部分为原料，凭什么收取还原炉IS
公开(公告)号：EP1170384A4
公开(公告)日：2004-04-28
申请号：EP00980059
申请日：2000-12-12
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUHARU , HIROMATSU TAKASHI , KONDO SATOSHI , IMURA SHOJI , ABE YOICHI
IPC分类号： C21B13/10
CPC分类号： C21B13/105 , C21B13/10 , Y02P10/212
摘要： A mixture comprising a metal oxide-containing powder and a carbon powder and water in an amount of 100 % or more relative to the total mass of both the powders is agitated for mixing to form a slurry. The slurry is dewatered so as to have a water content of 16 to 26 %, and the resultant product is subjected to compression molding to produce cylindrical or granular moldings having a thickness or diameter of 30 mm or less. The moldings are charged into a portion having an atmospheric temperature of 1170 DEG C of a reducing furnace of rotary hearth type, and thereafter is reduced in the furnace to produce a metal. The above method for operating a reducing furnace of rotary hearth type allows the simplification of the process from dewatering to molding and thus results in a process for reducing a metal oxide at a lower cost, and further can provide a method for economical recycling of the dust and sludge produced in a process of refining or working of a metal.
摘要翻译：本发明提供在旋转炉床式的和还原炉用于从脱水在简化过程还原的金属氧化物，以模制的方法，gemäß到其上富含水分的粉末原料以低成本降低。本发明因此提供关于业务方法，由此在金属精炼或加工所产生的粉尘或污泥被经济回收。具有100％的水分含量或相对更高的含金属氧化物的粉末和含碳粉末的总质量的粉末状混合物制成浆料，并通过搅拌混合。那里之后，将浆液脱水以16至26％和水分含量模压成制品。具有30毫米或更小由此获得用旋转炉底式还原炉被馈送到一个区域的所有这是在炉1170℃或更低的环境温度，并通过煅烧降低，从而提供一种厚度或直径的圆柱状或颗粒状的成型制品的金属。

6. 发明公开

EP2017050A4 METHOD OF MOLDING WASTE PLASTIC AND METHOD OF PYROLYZING WASTE PLASTIC 审中-公开
标题翻译：法成型的塑料废物和方法热解废塑料
公开(公告)号：EP2017050A4
公开(公告)日：2012-03-28
申请号：EP06832919
申请日：2006-11-13
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUHARU , KOSEKI TSUNEO , TOODA YUUJI , HIROMATSU TAKASHI , MORI YASUHIKO , SHIOZAWA SYUUICHI , SAKATANI MASATOSHI , SATO TAKASHI
IPC分类号： B29B9/10 , B29B9/06 , B29B17/00 , C08J11/12 , C10B53/07 , C10B57/04 , C10L5/48
CPC分类号： C10B57/04 , B29B17/0036 , B29B2017/0496 , C08J11/06 , C08J11/12 , C10B53/07 , C10B57/00 , Y02P20/143 , Y02W30/62 , Y02W30/625 , Y02W30/701 , Y02W30/703

7. 发明公开

EP1561829A4 METHOD FOR REDUCTION TREATMENT OF METAL OXIDE OR IRONMAKING WASTE, AND METHOD FOR CONCENTRATION AND/OR RECOVERY OF ZINC AND/OR LEAD 有权
标题翻译：方法以进行还原处理VONMETALLOXID或铁生产废料和方法AUFKONZENTRIERENUND /或锌的WIN和/或铅
公开(公告)号：EP1561829A4
公开(公告)日：2007-12-26
申请号：EP03795407
申请日：2003-09-11
申请人： NIPPON STEEL CORP
发明人： ICHIKAWA HIROSHI , IBARAKI TETSUHARU , IMURA SHOJI , ODA HIROSHI , ABE YOICHI , TAKAHASHI SHIGEKI , KANEMORI NOBUYUKI , SUZUKI SATOSHI
IPC分类号： C21B13/00 , C21B13/10 , C22B1/245 , C22B5/02 , C22B5/10 , C22B7/02 , C22B13/02 , C22B19/30 , C22B19/34 , C22B1/16 , B09B3/00 , C02F11/00 , C22B1/00
CPC分类号： C21B13/105 , C21B13/006 , C22B1/245 , C22B5/02 , C22B5/10 , C22B7/02 , C22B13/025 , C22B19/30 , C22B19/34 , Y02P10/136 , Y02P10/214 , Y02P10/216 , Y10S75/961
摘要： A method of reduction treatment of metal oxides characterized by using as a material a powder containing metal oxides and containing alkali metals and halogen elements and further, in accordance with need, carbon, mixing said material with water to produce a slurry, then dehydrating this and charging the dehydrated material, mixed with another material in accordance with need, into a rotary hearth type reduction furnace for reduction.

8. 发明公开

EP1439236A4 METHOD FOR DRYING MOLDING CONTAINING OXIDIZED METAL, METHOD FOR REDUCING OXIDIZED METAL AND ROTARY HEARTH TYPE METAL REDUCTION FURNACE 有权
标题翻译：用于干燥的氧化的金属法在包含成型体，一种用于减少氧化的金属与旋转炉床还原炉METAL
公开(公告)号：EP1439236A4
公开(公告)日：2008-09-03
申请号：EP02708751
申请日：2002-04-01
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUHARU , YAMAMOTO TAKASHI , ABE YOICHI , TAKAHASHI SHIGEKI , NAGAI KAZUNORI
IPC分类号： C21B13/10 , C21B13/00 , C22B1/24 , C22B1/245 , F27B9/16 , F27B9/36 , F27D19/00 , F27D21/00
CPC分类号： F27B9/16 , C21B13/0046 , C21B13/105 , C22B1/24 , C22B1/245 , F27B9/36 , F27D19/00 , F27D21/0014 , Y02P10/136
摘要： The present invention provides: a method for drying compacts containing water so as not to cause explosion and powdering; a method for reducing the compacts after being dried with great efficiency in a rotary-hearth-type reducing furnace; and a rotary-hearth-type metal reducing furnace. In the present invention, when compacts comprising powder containing metal oxide and carbon are dried, the critical value of a water evaporation rate, beyond which explosion occurs, is determined from the size and porosity of the compacts, then the water evaporation rate is controlled to a value not exceeding the critical value and, by so doing, the increase in the internal pressure of the compacts caused by the generation of water vapor is prevented. By the method, the explosion and cracking of the compacts are prevented. Further, when compacts are dried in a rotary-hearth-type reducing furnace, explosion is prevented by controlling the heat supply rate to the compacts through the above method and successively the compacts are incinerated and reduced in the same furnace.

9. 发明公开

EP1426451A4 METHOD FOR PRODUCING REDUCED IRON COMPACT IN ROTARY HEARTH REDUCING FURNACE, REDUCED IRON COMPACT, AND METHOD FOR PRODUCING PIG IRON USING THE SAME 有权
标题翻译：过程还原铁制造含有转底炉还原炉PRESS NERD，还原含铁PRESS岭和方法生铁的制造用这种方法
公开(公告)号：EP1426451A4
公开(公告)日：2008-07-16
申请号：EP02765426
申请日：2002-09-05
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUHARU , IMURA SHOUJI , ODA HIROSHI , TAKAHASHI MASAHARU , ABE YOICHI , TAKAHASHI SHIGEKI , SUZUKI SATOSHI
IPC分类号： C22B1/16 , C21B13/00 , C21B13/02 , C21B13/10
CPC分类号： C21B13/105 , C21B13/0046 , C21B13/023
摘要： A method for producing a reduced iron compact having a high crushing strength, hardly powdering, and having a high reducibility by using a baking reducing furnace of solid reducing type such as a rotary hearth reducing furnace, a reduced iron compact produced by the method, and a method for smelting-reducing the reduced iron compact in a blast furnace. In the method for producing the reduced iron compact, the compact is so produced that the atomic molar ratios of the carbon in a raw powder of a mixture of an iron oxide-containing powder and a carbon-containing powder and the oxygen chemically bonded to iron, manganese, nickel, zinc, and lead or the content of the ferric oxide in the raw powder is in a specific range and that the porosity is in a specific range, and the compact is placed on the hearth of a reducing furnace which the hearth rotates the compact, heated by the heat of the burning gas in the upper part of the furnace, and baked and reduced above a predetermined temperature.

10. 发明专利

BRPI0816359A2 未知
公开(公告)号：BRPI0816359A2
公开(公告)日：2015-02-24
申请号：BRPI0816359
申请日：2008-09-02
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUHARU
IPC分类号： C21B13/10 , C21B5/00 , C22B1/16 , C22B1/248
摘要： In a method of producing a reduced iron cast, a cast of a powder which includes total iron of 40% or more and an atomic molar amount of fixed carbon of 0.7 to 1.5 times the atomic molar amount of oxygen compounded with metal oxide reduced in a carbon monoxide atmosphere at 1200°C is reduced in a rotary hearth furnace. The method includes: producing, in an atmosphere at a maximum temperature of 1200°C to 1420°C at a ratio of carbon monoxide to carbon dioxide of 0.3 to 1.2 in the reduced material, a reduced iron-containing material in which a ratio of metal iron is 50 mass% or more and a ratio of carbon is 5 mass% or less; and compression-molding the reduced iron-containing material at a temperature of 500°C to 800°C by a roller-type mold.

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