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1. 发明专利

JP2006076825A Method for utilizing carbon dioxide 有权
标题翻译：二氧化碳利用方法
公开(公告)号：JP2006076825A
公开(公告)日：2006-03-23
申请号：JP2004262111
申请日：2004-09-09
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： IDE HIDEO
IPC分类号： C04B28/02 , C04B9/12 , C04B14/04 , C04B14/26 , C04B22/06 , C04B24/06 , C04B28/30
CPC分类号： C04B28/02 , C04B14/06 , C04B14/26 , C04B2103/20
摘要： PROBLEM TO BE SOLVED: To attempt effective utilization of carbon dioxide for reducing discharge amount of the same.
SOLUTION: Magnesium carbonate is prepared from carbon dioxide and a magnesium oxide-containing substance. The magnesium carbonate is utilized as a cement admixture together with silica and a setting retarder.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了有效利用二氧化碳减少其排放量。解决方案：由二氧化碳和含氧化镁的物质制备碳酸镁。碳酸镁与二氧化硅和凝固缓凝剂一起用作水泥混合物。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2004210630A Method of reforming slag 审中-公开
公开(公告)号：JP2004210630A
公开(公告)日：2004-07-29
申请号：JP2003408692
申请日：2003-12-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： IDE HIDEO
IPC分类号： C04B5/06 , C21C5/28 , C21C5/54 , C21C7/00 , F27D15/00
CPC分类号： Y02P10/216
摘要： PROBLEM TO BE SOLVED: To prevent the powdering caused by the phase transition of dicalcium silicate on cooling and the elution of hexavalent Cr in slag comprising chromium such as stainless slag. SOLUTION: In the method of reforming slag, as for slag in which the amount of stabilization substance to enter into solid solution is reduced, and which is powdered by the phase transition of dicalcium silicate on cooling and also comprises chromium oxide, a compound of iron and phosphorus, a sulfate of a metal and a silica-containing substance are mixed to the total mass after the mixing in the molten state of the slag, so that its powdering and the elution of hexavalent Cr can be prevented. COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2000313642A PRODUCTION OF RIGID WATER-GRANULATED SLAG 失效
公开(公告)号：JP2000313642A
公开(公告)日：2000-11-14
申请号：JP11726399
申请日：1999-04-23
申请人： NIPPON STEEL CORP
发明人： KANEMATSU KINJI , IDE HIDEO
IPC分类号： C04B5/02 , C04B5/06
摘要： PROBLEM TO BE SOLVED: To obtain the slag at a low cost and in a high yield without remodeling installations and without installing a new installation, by adding non-dried water-granulated furnace slag just after produced by the water granulation method to melted furnace slag in a specific rate. SOLUTION: The non-dried water-granulated furnace slag is added in an amount of 1 to 10 wt.% based on the total weight of the added mixture. The reduction in the amount of nitrogen which is dissolved in the slag and causes a foaming reaction on the water granulation and the lowering in the temperature of the melted slag are effective for the production of the rigid slag by the water granulation of the melted furnace slag. When the non-dried water- granulated furnace slag is added, the adhered water is evaporated as steam to contribute to the lowering in the temperature of the melted slag, and the steam is further impregnated into the melted slag and reacts with the dissolved nitrogen to release the nitrogen as nitrogen gas outside the system, thereby giving the dense rigid water-granulated slag. The non-dried water-granulated furnace slag is slag in a state lifted from a basket just after the water granulation treatment, and has a small amount of adhered water on the surface and water impregnated into spaces such as cracks and opened pores.

4. 发明专利

JPH11292659A SURFACE TREATMENT OF STEELMAKING SLAG 失效
公开(公告)号：JPH11292659A
公开(公告)日：1999-10-26
申请号：JP10713998
申请日：1998-04-03
申请人： NIPPON STEEL CORP
发明人： KASHIWABARA TSUKASA , IDE HIDEO , HARA RYOJI
IPC分类号： C04B5/00 , C04B18/14 , C04B41/60
摘要： PROBLEM TO BE SOLVED: To improve luster, heighten an additional value and enlarge the use by applying a surface treatment to steelmaking slag by mutually rubbing the steelmaking slag by stirring the steelmaking slag having a specific remaining expansion factor. SOLUTION: The steelmaking slag having

5. 发明专利

JPH11157888A PRODUCTION OF RIGID WATER-CRUSHED GRANULATED SLAG 失效
公开(公告)号：JPH11157888A
公开(公告)日：1999-06-15
申请号：JP33659997
申请日：1997-11-21
申请人： NIPPON STEEL CORP
发明人： IDE HIDEO , KANEMATSU KINJI
IPC分类号： C04B5/02 , C04B5/06 , C21B3/08
摘要： PROBLEM TO BE SOLVED: To inexpensively produce a rigid water-crushed granulated slag suitable for a fine aggregate for concrete and mortar by a current water-crushing device in front of a furnace. SOLUTION: At the time of water-crushing a molten blast furnace slag, the water-crushing is executed by using a water in which 100-1,000 ppm water- soluble polymer is dissolved as a cooling water for water-crushing. As the water-soluble polymer, for example, more than one kind carboxymethyl cellulose and polyethylene oxide are used. When the molten blast furnace slag is brought into contact with the water, if the water-soluble polymer is dissolved in the cooling water, cooling speed is raised and a growth of a coagulating layer becomes fast. Therefore, a foaming reaction causing specific gravity drop is hardly caused and the slag is densified. The rigid water-crushed granulated slag can be inexpensively produced with the current water-crushing device in front of the furnace without executing a new plant investment. The blast furnace granulated slag is used for not only blast furnace cement but also for fine aggregate, so it contributes for changing the blast furnace slag into resources.

6. 发明专利

JPH07223857A FORCED AGING METHOD FOR SLAG 失效
公开(公告)号：JPH07223857A
公开(公告)日：1995-08-22
申请号：JP26964294
申请日：1994-11-02
申请人： NIPPON STEEL CORP
发明人： IDE HIDEO , MORIDERA HIROMITSU , KIJIMA TORU , YOKOO MASAYOSHI
IPC分类号： C04B5/00 , C04B5/06 , C04B32/00 , F27D15/00
摘要： PURPOSE:To provide the method for steelmaking slag and/or hot metal pretreatment slag, so designed that such slag is blended with a specified amount of coal ash followed by treatment with steam and/or warm water to prevent powder development, leading to promotion of slag aging. CONSTITUTION:Steelmaking slag and/or hot metal pretreatment slag prior to forced aging is blended with coal ash at such an amount as to be 1-30wt.% of the total weight after blending. Subsequently, the blend is treated with steam and/or warm water to conduct a forced aging of the slag. By this method, the CaO left in a free state in the slag is reacted with the soluble silica in the coal ash in the presence of water, and can be stabilized, leading to enabling the resultant slag to be effectively used as, e.g. a material for roads. Instead of the coal ash, blast furnace granulated slag ground so as to be about 0.01-1.2 mm in average particle diameter may be blended at such an amount as to be 1-30wt.% of the total weight after blending.

7. 发明专利

JPH0769712A REFRACTORY COMPOSITION AND ITS PRODUCTION 失效
公开(公告)号：JPH0769712A
公开(公告)日：1995-03-14
申请号：JP16841193
申请日：1993-06-16
申请人： NIPPON STEEL CORP
发明人： TERAJIMA HIDETOSHI , TAKEUCHI KAZUHIKO , ISHII AKIO , IDE HIDEO
IPC分类号： B22D41/02 , C04B35/00 , C04B35/04 , C04B35/101 , C04B35/443
摘要： PURPOSE:To obtain a refractory composition excellent in resistance to corrosion nd thermal shock. CONSTITUTION:This refractory composition excellent in resistance to corrosion and thermal shock has the following characteristics: composed of oxides such as MgO, Al2O3, Cr2O2, MgAl2O4 and MgCr2O4; containing, as chemical composition, MgO, Al2O3 and Cr2O3; MgO content is 40-90mol%; MgO/Cr2O3 (molar ratio) is >=1.0; (5) among grains composed of the oxides, at least those

8. 发明专利

JPH06219794A METHOD FOR AGING SLAG 失效
公开(公告)号：JPH06219794A
公开(公告)日：1994-08-09
申请号：JP1004593
申请日：1993-01-25
申请人： NIPPON STEEL CORP
发明人： IDE HIDEO , SAKAKIBARA MICHIAKI , IZUMIYAMA MAMORU , KOTANI SEIICHI
IPC分类号： C04B5/06 , C21B3/06
摘要： PURPOSE:To provide a method in which powdering can be prevented and aging can be accelerated in piling a slag produced in steelmaking or the slag pretreated with molten iron in heaps outdoors and aging the slag. CONSTITUTION:A slag produced in steelmaking before aging or the slag pretreated with molten iron or both are blended with coal ash in an amount of 1-30wt.% based on the total weight after blending and a carbon-containing industrial waste in an amount of 0.5-20wt.% based on the total weight after the blending and the resultant blend is aged. Artificial water sprinkling in the aging is more effective. Thereby, prevention of powdering and acceleration of aging can be achieved at a low cost while suppressing the production of large coarse granules. As a result, this method is advantageous to conversion of the slag into resources.

9. 发明专利

JPH06127985A METHOD FOR ACCELERATING AGING OF STEEL MAKING SLAG 失效
公开(公告)号：JPH06127985A
公开(公告)日：1994-05-10
申请号：JP27971192
申请日：1992-10-19
申请人： NIPPON STEEL CORP
发明人： IDE HIDEO
IPC分类号： C04B5/00
摘要： PURPOSE:To provide a method for completing aging in a shorter period than the past mere piling up without making fresh investment. CONSTITUTION:Slag is divided to >=2 and

10. 发明专利

JPH03290372A ELECTRICALLY CONDUCTIVE SINTERED SIALON AND PRODUCTION THEREOF 失效
公开(公告)号：JPH03290372A
公开(公告)日：1991-12-20
申请号：JP12001790
申请日：1990-05-11
申请人： NIPPON STEEL CORP
发明人： IDE HIDEO , KUBO HIROSHI
IPC分类号： C04B35/599 , C04B35/58
摘要： PURPOSE:To obtain the subject product having improved thermal shock resistance by mixing a beta-sialon raw material containing a sintering assistant with specific vol.% of Ti nitride and Cr, forming the mixture, heat-treating the formed article in N2 gas atmosphere and sintering the product. CONSTITUTION:Powders of Si3N4, AlN and Al2O3 are mixed with each other at ratios to get a prescribed z value in a beta-sialon expressed by general formula Si6-zAlzOzN8-z and the mixture is further compounded with a specific amount of powdery sintering assistant such as Y2O3 and MgO. The obtained mixture is mixed with 25-50vol.% (based on the total mixture) of Ti nitride powder such as TiN and 0.3-1.8vol.% of Cr powder and formed. The formed article is heated at 1550-1650 deg.C for >=1hr in N2 gas atmosphere under normal or positive pressure and sintered at 1700-1840 deg.C for >=2hr to obtain the objective electrically conductive sintered sialon.

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