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1. 发明专利

JP2008290897A Method and apparatus for recovering silicon 有权
标题翻译：回收硅的方法和装置
公开(公告)号：JP2008290897A
公开(公告)日：2008-12-04
申请号：JP2007136470
申请日：2007-05-23
申请人： Nippon Steel Corp , Nippon Steel Materials Co Ltd , 新日本製鐵株式会社 , 新日鉄マテリアルズ株式会社
发明人： ONO NOBUYUKI , KONDO JIRO
IPC分类号： C01B33/037 , B03D1/001 , B03D1/02 , B03D1/10 , B09B3/00 , B09B5/00
CPC分类号： Y02W30/20 , Y02W30/827
摘要： PROBLEM TO BE SOLVED: To provide a method and apparatus for recovering silicon by which unwanted materials are effectively removed from silicon-containing waste or a silicon mixture comprising silicon-containing slag generated in silicon production and silicon is efficiently separated and recovered. SOLUTION: The method for recovering silicon includes: a step of disintegrating a silicon mixture by putting the mixture in an alkaline aqueous solution (a) and generating gas from an interface of silicon in the mixture; a step of generating gas around silicon in the disintegrated silicon mixture in an alkaline aqueous solution (b) and allowing silicon to which the gas adheres to float up; and a step of separating and recovering the floating silicon. The apparatus for recovering silicon comprises: at least a device for receiving and feeding a silicon mixture; a decomposition unit with a decomposition tank containing the alkaline aqueous solution (a) for disintegrating the silicon mixture by generating gas from an interface of silicon in the mixture; a flotation separation unit with a flotage tank containing the alkaline aqueous solution (b); and a floating substance recovery unit for separating and recovering silicon floating up in the flotage tank. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于回收硅的方法和装置，其中不需要的材料被有效地从含硅废物中去除，或者包括在硅生产中产生的含硅渣的硅混合物被有效地分离和回收。解决方案：回收硅的方法包括：通过将混合物置于碱性水溶液（a）中并从混合物中的硅界面产生气体来分解硅混合物的步骤; 在碱性水溶液（b）中在崩解硅混合物中在硅周围产生气体并使气体附着的硅浮起的步骤; 以及分离和回收浮置硅的步骤。用于回收硅的装置包括：至少一个用于接收和供给硅混合物的装置; 分解单元，其具有含有碱性水溶液（a）的分解槽，用于通过从混合物中的硅界面产生气体来分解硅混合物; 具有含有碱性水溶液（b）的漂浮槽的浮选分离单元; 以及浮动物质回收单元，用于分离和回收漂浮在浮选槽中的硅。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2006212580A Method for treating acid waste liquid containing iron and chromium 有权
标题翻译：用于处理含有铁和铬的酸性废液的方法
公开(公告)号：JP2006212580A
公开(公告)日：2006-08-17
申请号：JP2005029587
申请日：2005-02-04
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ONO NOBUYUKI
IPC分类号： C02F1/62 , C01G37/033 , C01G49/02 , C02F1/44 , C02F1/64 , C02F1/74 , C02F3/34 , C23G1/36
摘要： PROBLEM TO BE SOLVED: To provide a method for treating an acid waste liquid containing iron and chromium which can sufficiently be used as an iron source and a stainless raw material separately by separating a metal hydroxide including iron and chromium to be precipitated by neutralization treatment of the acid waste liquid containing iron and chromium by each type.
SOLUTION: The acid waste liquid containing at least a trivalent chromium ion and a divalent iron ion generated when a chromium stainless steel sheet is subjected to an acid wash is continuously supplied to a first reactor, a pH is adjusted in a range of 4.5 to 6.5 by an alkaline agent, and a particle mainly having chromium hydroxide is deposited, separated from a liquid part and recovered. The liquid part is introduced into a second reactor, the divalant iron ion is oxidized by biological or chemical oxidation means, and a particle having mainly iron hydroxide (III) is precipitated, separated and recovered. Further, a waste liquid containing a hexavalant chromium ion is subjected to reduction treatment by slurry educed in the first reactor and a chromium concentration in the particle is increased to be recovered.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种处理含有铁和铬的酸性废液的方法，其可以充分地用作铁源和不锈钢原料，通过将包含铁和铬的金属氢氧化物分离沉淀的金属氢氧化物每种类型含有铁和铬的酸性废液的中和处理。解决方案：将不锈钢片进行酸洗时产生的至少含有三价铬离子和二价铁离子的酸性废液连续供给至第一反应器，将pH调节至 4.5至6.5，并且沉积主要含有氢氧化铬的颗粒，与液体部分分离并回收。将液体部分引入第二反应器中，通过生物或化学氧化方式氧化二价铁离子，沉淀出主要氢氧化铁（III）的颗粒，分离回收。此外，含有六价铬离子的废液通过在第一反应器中引发的浆料进行还原处理，并且增加颗粒中的铬浓度以回收。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2004188269A Method of treating liquid waste containing several metals and method of recovering valuable metal 有权
公开(公告)号：JP2004188269A
公开(公告)日：2004-07-08
申请号：JP2002356936
申请日：2002-12-09
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ONO NOBUYUKI , MIKI OSAMU , KATO TOSHIRO , ITO KIMIO
IPC分类号： B01D39/16 , B01D9/02 , C02F1/62 , C02F1/64 , C02F3/34 , C22B3/18 , C22B7/00 , C22B19/30 , C22B23/00 , C25D21/18
CPC分类号： Y02P10/232 , Y02P10/234 , Y02P10/238 , Y02W10/37
摘要： PROBLEM TO BE SOLVED: To provide a method of treating a liquid waste containing several metals and a method of recovering valuable metals. SOLUTION: This method of treating the liquid waste containing several metals in the first reaction tank performs a step to supply the acid liquid waste continuously to the first reaction tank, neutralize the supplied liquid waste and adjust the pH of the neutralized liquid waste to ≥3 and COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2003213316A ADDITIVE FOR REFINING FURNACE AND METHOD FOR REFINING MOLTEN STEEL USING THE SAME 审中-公开
公开(公告)号：JP2003213316A
公开(公告)日：2003-07-30
申请号：JP2002006566
申请日：2002-01-15
申请人： NIPPON STEEL CORP
发明人： MIYAMOTO KENICHIRO , ONO NOBUYUKI , SHINKAI AKIO
IPC分类号： C22B1/245 , C21C5/28
摘要： PROBLEM TO BE SOLVED: To provide an additive for a refining furnace, and a method for refining molten steel using this additive with which the raise of heat in molten iron at the decarburize-refining is performed at a low cost by utilizing a carbonaceous material and plastics as heat sources and the quality of the molten steel can be improved by promoting the removal of sulfur contained in the carbonaceous material and restraining the raise of the sulfur in the molten steel. SOLUTION: The additive for refining furnace is the one, in which mixture obtained by blending and kneading 9-1260 pts.wt. plastic and 11-1620 pts.wt. dust based on 100 pts.wt. carbonaceous material, is pressed to form as bulky material. The method for refining the molten steel by using the additive for refining furnace, is performed by charging the non-saturated molten iron having ≤4 mass% carbon and applying oxygen-blowing while adding the additive for refining furnace into the molten iron to perform decarburize-refining. COPYRIGHT: (C)2003,JPO

5. 发明专利

JP2003080467A Adjustable rotation fitting of tool 审中-公开
标题翻译：可调节的工具旋转接头
公开(公告)号：JP2003080467A
公开(公告)日：2003-03-18
申请号：JP2001275310
申请日：2001-09-11
申请人： Nippon Steel Corp , Sankyu Inc , 山九株式会社 , 新日本製鐵株式会社
发明人： KIZAKI HIRONOBU , ERA TOSHIAKI , ONO NOBUYUKI , KUROHATA TOMOHIDE , ABE HIROSHI
IPC分类号： B25B25/00
摘要： PROBLEM TO BE SOLVED: To provide an adjustable rotation fitting of a tool capable of freely varying a direction of the tool.
SOLUTION: The adjustable rotation fitting has a rotation member 17 turnably provided on an operation tool 12 through a support shaft 15 and provided with a circular rail 16 surrounding the tool 12; and a rotation support part 25 movable along the circular rail 16 of the rotation member 17. The rotation support part 25 is mountable to a lower end of a hanging down member 14 provided above the tool 12.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供能够自由改变工具的方向的工具的可调节旋转配件。解决方案：可调节旋转配件具有通过支撑轴15可转动地设置在操作工具12上的旋转构件17，并且设置有围绕工具12的圆形轨道16; 以及可沿着旋转构件17的圆形轨道16移动的旋转支撑部25.旋转支撑部25可安装到设置在工具12上方的下垂构件14的下端。

6. 发明专利

JP2002180121A METHOD FOR PRE-TREATING MOLTEN IRON USING METALLIC HYDROXIDE 失效
公开(公告)号：JP2002180121A
公开(公告)日：2002-06-26
申请号：JP2000373139
申请日：2000-12-07
申请人： NIPPON STEEL CORP
发明人： ONO NOBUYUKI , MIYAMOTO KENICHIRO
IPC分类号： B22D1/00 , C21C1/02 , C21C1/04 , C21C7/064 , C22B7/00
摘要： PROBLEM TO BE SOLVED: To provide a method for pre-treating molten iron using metallic hydroxide with which the pre-treating cost of desiliconization and dephosphorization can be reduced by effectively utilizing the metallic hydroxide being waste for the removal of silicon, phosphorus, etc., contained in molten metal. SOLUTION: Solid oxide agent containing the metallic hydroxide is added into the molten metal 14 to perform the pre-treatment of desiliconization, dephosphorization, etc., in the molten metal 14.

7. 发明专利

JPH1177093A TREATMENT OF SLUDGE GENERATED IN FACTORY 失效
公开(公告)号：JPH1177093A
公开(公告)日：1999-03-23
申请号：JP26274897
申请日：1997-09-09
申请人： NIPPON STEEL CORP
发明人： ONO NOBUYUKI , IKATA SUSUMU , URA MASAAKI
IPC分类号： B01D25/12 , C02F11/00 , C02F11/12 , C02F11/14
摘要： PROBLEM TO BE SOLVED: To achieve dehydration to a large extent while enhancing treatment efficiency by effectively dehydrating sludge by primary and secondary dehydrators. SOLUTION: Sludge generated in a factory is sedimented in a sedimentation tank to recover a sedimented slurry which is, in turn, dehydrated by primary dehydrators 20-22 to produce a water-containing cake and a part of the preceding sedimented slurry is mixed with the water-containing cake as a dilution liquid to prepare a proper slurry having a proper solid and this proper slurry is dehydrated in a secondary dehydrator 42 to produce a dehydrated cake with a solid content of 45% or more and this cake is transferred to a landfill site 50.

8. 发明专利

JPH08197078A BIOLOGICAL SEWAGE TREATING DEVICE 失效
公开(公告)号：JPH08197078A
公开(公告)日：1996-08-06
申请号：JP796795
申请日：1995-01-23
申请人： NIPPON STEEL CORP
发明人： ONO NOBUYUKI , NOMURA YUKIHIRO , MUTO HIROSHI , KAMORI YASUSHI
IPC分类号： C02F3/06 , C02F3/08 , C02F3/10 , C02F3/12 , C02F3/30
摘要： PURPOSE: To make a settling tank of a biological sewage treating device compact by setting an organism immobilizing carrier in, an aeration tank or in an anaerobic tank and throwing in a granular solid material having a specified grain diameter. CONSTITUTION: A granular solid material 4 is thrown in an aeration part 1, an immobilized organism immobilizing carrier 3 is set at an intermediate height of the aeration part 1. Raw water 5 is introduced from the lower part of the aeration part 1, and air 8 is blown in from the lower part of the aeration part 1. Consequently, the org. component in the raw water is brought into contact with activated sludge, and the org. matter is decomposed and removed. The activated sludge is deposited on the carrier 3, and the amt. of immobilized activated sludge is increased. Accordingly, even if the concn. of activated sludge is lowered in a fluidized region, the concn. of the activated sludge effective in the entire treatment of the aeration part 1 is maintained at the same concn. as before. Further, the settling velocity of activated sludge is increased and the water surface area of a settling part 2 is decreased by throwing in the granular solid material 4 having

9. 发明专利

JPH07265895A METHOD FOR CONTROLLING AMOUNT OF OZONE TO BE GENERATED OF EQUIPMENT FOR OZONE TREATMENT OF AMMONIA WATER 失效
公开(公告)号：JPH07265895A
公开(公告)日：1995-10-17
申请号：JP6078194
申请日：1994-03-30
申请人： NIPPON STEEL CORP
发明人： MUTO HIROSHI , ONO NOBUYUKI , YAMAGUCHI SHOICHI , NISHIYAMA KOICHI , SAKATA MORIO
IPC分类号： C02F3/12 , C01B13/11 , C02F1/58 , C02F1/78
摘要： PURPOSE:To prevent release of ozone to the atm. by calculating the actual value of a decreased COD load value from the COD value of activated sludge treated water and the COD value after an ozone treatment and controlling the amt. of the ozone to be generated from this calculated value. CONSTITUTION:The ammonia water generated in a coke furnace is passed through an activated sludge treating chamber and a settling chamber, by which the ammonia water is purified. The supernatant water thereof is introduced into a reaction chamber 5, where the COD is removed by reaction with the ozone from an ozone generator 3. The ozone consumed in this reaction chamber 5 is subjected to sepn. of the unreacted ozone in an ozone separating chamber. The unreacted ozone is subjected to ozone cracking in waste ozone cracking equipment 9 and thereafter, the ozone is released to the atm. At this time, a deviation between the inlet side COD and the outlet side COD and the decreased COD load quantity from the volume of the treated water are calculated in an ozone concn. control section 18. The optimum amt. of the ozone to be generated is calculated from the measured values of the load quantity and the waste ozone concn. and the flow rate of raw material oxygen is controlled. The generated ozone canon. is lowered according to the excess rate of the waste ozone concn. if the waste ozone concn. is above 2mg/l.

10. 发明专利

JP2008264654A Waste liquid treatment method and apparatus using iron-oxidizing bacteria 有权
标题翻译：使用铁氧化细菌的废液处理方法和装置
公开(公告)号：JP2008264654A
公开(公告)日：2008-11-06
申请号：JP2007109702
申请日：2007-04-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ONO NOBUYUKI , KANEMORI NOBUYUKI , TAKAHASHI NAOYA
IPC分类号： C02F3/34 , C02F1/62
摘要： PROBLEM TO BE SOLVED: To provide a waste liquid treatment method and apparatus using iron-oxidizing bacteria which can detect the contamination of an activity inhibitor at an early stage even in a case that the activity inhibitor is temporarily mixed to suppress a deterioration of divalent iron ion-oxidizing capacity by the iron-oxidizing bacteria and return the capacity at early stage.
SOLUTION: In the waste liquid treatment method, acidic waste liquid containing divalent iron ions is supplied into a reaction tank in which iron-oxidizing bacteria exist, to oxidize the divalent iron ions to trivalent iron ions by the iron-oxidizing bacteria, the pH of the waste liquid is adjusted to 3 or more and 5 or less to generate iron (III) hydroxide particles in it, and the waste liquid discharged from the reaction tank is settled and separated to recover the iron (III) hydroxide particles. The oxidation-reduction potential and pH of the waste liquid in the reaction tank are continuously measured. By using a linear correlation between oxidation-reduction potential and pH, a corrected value of the oxidation-reduction potential is calculated from the two measured values, and when the corrected value is equal to or less than a predetermined value, a supply of the waste liquid containing divalent iron ions is stopped or reduced.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用铁氧化细菌的废液处理方法和装置，即使在暂时混合活性抑制剂以抑制劣化的情况下也能够早期检测活性抑制剂的污染的铁氧化细菌的二价铁离子氧化能力，并在早期恢复能力。解决方案：在废液处理方法中，将含有二价铁离子的酸性废液供给到存在铁氧化细菌的反应槽中，通过铁氧化细菌将二价铁离子氧化为三价铁离子，将废液的pH调节至3以上且5以下，生成氢氧化铁中的铁（III），将从反应槽排出的废液进行沉降分离，回收氢氧化铁（III）。连续地测量反应槽中废液的氧化还原电位和pH。通过使用氧化还原电位和pH之间的线性相关性，从两个测量值计算氧化还原电位的校正值，并且当校正值等于或小于预定值时，废物的供应含有二价铁离子的液体停止或减少。版权所有（C）2009，JPO＆INPIT

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