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1. 发明公开

EP4411000A1 MOLTEN IRON PRODUCTION METHOD 审中-公开
公开(公告)号：EP4411000A1
公开(公告)日：2024-08-07
申请号：EP22876211.8
申请日：2022-09-27
申请人： NIPPON STEEL CORPORATION
发明人： HARADA, Toshiya
IPC分类号： C21C7/00 , C21B11/10 , C21C1/02 , C21C5/28
CPC分类号： C21C5/28 , C21C1/02 , C21B11/10 , C21C7/00
摘要： In this molten pig iron manufacturing method, using a fixed-type DC electric furnace, an auxiliary raw material is supplied to the fixed-type DC electric furnace and molten pig iron having a C concentration of 2 to 4 mass% at a temperature of 1400°C to 1550°C is tapped from a tap hole in a state in which a solid iron source is present in the furnace inner peripheral wall space and in a state in which the solid iron source is not present in the upper electrode facing space.

2. 发明公开

EP3160924A1 ENHANCED PERFORMANCE OF THE DEHYDROGENATION BY THE REDUCTION OF COKE FORMATION USING PRE-ACTIVATED CO2 审中-公开
标题翻译：预活化CO2减少焦炭形成对脱氢的促进作用
公开(公告)号：EP3160924A1
公开(公告)日：2017-05-03
申请号：EP15725425.1
申请日：2015-05-05
申请人： Sabic Global Technologies B.V.
发明人： CHOI, YongMan , AL-GHAMDI, Adel Abdullah , BUNAMA, Ramsey , EL-YAHYAOUI, Khalid M.
IPC分类号： C07C1/04 , B01J19/08 , H05H1/24 , C07C4/06 , C07C4/10 , C07C5/32 , C07C5/333 , C07C11/06
CPC分类号： C07C5/333 , B01J19/088 , B01J23/72 , B01J2219/00123 , B01J2219/0805 , B01J2219/0871 , B01J2219/0894 , C07C5/3332 , C07C2521/04 , C07C2521/06 , C07C2523/26 , C21C5/28 , H05H1/2406 , H05H2245/1215 , C07C11/09
摘要： The present disclosure addresses the deficiencies described above by providing systems and methods for enhancing the efficiency and yield of alkene production. The methods and systems provide for the use of activated CO
2 in a dehydrogenation reactor along with an alkane stream. Through the use of the methods and systems of the invention, catalyst deactivation by coke deposition is reduced and the selectivity and efficiency of the dehydrogenation reaction is improved.
摘要翻译：本公开通过提供用于提高烯烃生产的效率和产量的系统和方法来解决上述缺陷。该方法和系统提供了在脱氢反应器中使用活性CO 2以及烷烃流。通过使用本发明的方法和系统，减少了由焦炭沉积引起的催化剂失活，并且提高了脱氢反应的选择性和效率。

3. 发明公开

EP2751299A4 METHOD OF ALLOYING VARIOUS GRADES OF STEEL WITH MANGANESE OXIDES 审中-公开
标题翻译：方法与MANGA氧化物各阶层合金钢
公开(公告)号：EP2751299A4
公开(公告)日：2016-03-02
申请号：EP12803877
申请日：2012-06-13
申请人： MCMAHAN JOSEPH BOSTON
发明人： MCMAHAN JOSEPH BOSTON
IPC分类号： C22C33/00 , C21C5/28 , C21C5/52 , C21C7/06 , C21C7/076 , C22C33/04 , C22C38/04
CPC分类号： C22C33/04 , C21C5/28 , C21C5/52 , C21C7/06 , C21C7/076 , C22C38/04 , Y02P10/216 , Y02P10/242

4. 发明公开

EP2679691A1 Method for manufacturing an austenitic stainless steel from a nickel laterite ore and a chromite ore 有权转让
标题翻译：从镍红土矿石和铬铁矿石制造的奥氏体系不锈钢的制造方法
公开(公告)号：EP2679691A1
公开(公告)日：2014-01-01
申请号：EP13171750.6
申请日：2013-06-12
申请人： Yieh United Steel Corp.
发明人： HSU, Wen-Chien , HUANG, Pei-Te , WU, Yi-Cheng , YANG, Cheng-Tung
IPC分类号： C21C5/00 , C21C5/28 , C22B3/00 , C22B3/04 , C22B3/20 , C22B23/00 , C22C1/00 , C22C33/04 , C22C38/40
CPC分类号： C21B13/004 , C21B13/006 , C21B13/026 , C21B13/08 , C21C5/005 , C21C5/28 , C22B23/005 , C22B23/023 , C22B34/32 , C22C1/00 , C22C1/02 , C22C33/04 , C22C38/40
摘要： A method for manufacturing an austenitic stainless steel from a nickel laterite ore and a chromite ore includes the steps of determining a nickel content of the nickel laterite ore; processing the nickel laterite ore into a nickel-containing precursor based on the determination; obtaining a molten ferrochrome from the chromite ore; transferring the nickel-containing precursor into a converter, and hot charging the molten ferrochrome into the converter to obtain a molten stainless steel; and charging the molten stainless steel into a continuous casting machine to obtain a stainless steel slab.
摘要翻译：一种用于制造由镍红土矿石和铬铁矿的奥氏体不锈钢的方法，包括确定开采镍红土矿石的镍含量的步骤; 处理所述镍红土矿石进基于所述确定含镍的前体; 获得来自铬铁矿矿石的熔融铬铁; 传递环的前体到一个转换器，以及熔融铬铁热装入转炉，得到熔融不锈钢含镍; 和熔融的不锈钢装入的连续铸造机以得到不锈钢板。

5. 发明授权

EP2304363B1 PROCÉDÉ DE FABRICATION DE CLINKER DE CIMENT DANS UNE INSTALLATION, ET INSTALLATION DE FABRICATION DE CLINKER DE CIMENT EN TANT QUE TELLE 有权
标题翻译：过程为生产水泥熟料的水泥熟料生产植物和植物
公开(公告)号：EP2304363B1
公开(公告)日：2012-05-23
申请号：EP09802551.3
申请日：2009-07-17
申请人： Fives FCB
发明人： CORDONNIER, Alain , DEVROE, Sébastien
IPC分类号： F27B7/20 , F27B17/00 , C04B7/43 , C04B7/36 , B01D53/62
CPC分类号： F27B7/2033 , C04B7/367 , C21C5/28 , C21C5/52 , F27D17/004 , Y02P10/216 , Y02P40/18
摘要： The invention relates to a process for manufacturing cement clinker in a plant comprising a cyclone preheater, a precalcination reactor, a rotary furnace and a clinker cooler, in which process the flue gases from the furnace are conducted to the precalcination reactor, or even to the cyclone preheater. According to the invention, the precalcination reactor (4) is fed with an oxygen-rich gas (9), the nitrogen content of which is less than 30%, constituting the sole oxygen source for said reactor, and a portion (8
a ) leaving the cyclone preheater is recycled into the plant so as to obtain a suitable flux necessary for suspending matter in said preheater, while the other portion (8
b ), rich in carbon dioxide, is adapted for the purpose of a treatment for limiting the amount of carbon dioxide discharged into the atmosphere, such as particularly sequestration.

6. 发明授权

EP1090702B1 Method for minimizing slag carryover during the production of steel 有权
标题翻译：钢铁生产过程中最大限度地减少溢渣的方法
公开(公告)号：EP1090702B1
公开(公告)日：2004-01-02
申请号：EP00100458.9
申请日：2000-01-11
申请人： BETHLEHEM STEEL CORPORATION
发明人： Stofanak, John A. , Sharan, Alok , Goldstein, Daniel E. , Stelts, Elizabeth A.
IPC分类号： B22D11/18 , B22D2/00 , C21C5/28 , G01F23/292
CPC分类号： C21C5/28 , B22D2/001 , C21C5/4673 , G01J5/004 , G01J5/02 , G01J5/025 , G01J5/046 , G01J5/08 , G01J5/0875 , G01J2005/0077

7. 发明授权

EP0805217B1 Oxygen steelmaking 无效
标题翻译：氧气炼钢
公开(公告)号：EP0805217B1
公开(公告)日：2001-11-28
申请号：EP97302921.8
申请日：1997-04-29
申请人： The BOC Group plc
发明人： Clare, Stephen Roger , Mayer, Martin Imre
IPC分类号： C21C5/28 , F25J3/04
CPC分类号： F25J3/04412 , C01B13/0248 , C01B2210/0046 , C01B2210/0051 , C01B2210/0062 , C01B2210/0082 , C01B2210/0084 , C01B2210/0085 , C21C5/28 , C21C7/072 , F25J3/04084 , F25J3/0409 , F25J3/04303 , F25J3/04545 , F25J3/04557 , F25J3/04678 , F25J3/04703 , F25J2200/90 , F25J2215/54 , F25J2235/58 , Y02P10/122 , Y02P10/128 , Y02P20/152

8. 发明公开

EP1047797A1 METHOD FOR RECYCLING IRON BEARING SLUDGES IN A STEELMAKING OPERATION 失效
标题翻译：方法回收含铁污泥在钢铁生产
公开(公告)号：EP1047797A1
公开(公告)日：2000-11-02
申请号：EP98902817.0
申请日：1998-01-22
申请人： BETHLEHEM STEEL CORPORATION
发明人： LYNN, John, D. , SMITH, Colvin, W. , KEYSER, Glenn, C.
IPC分类号： C21C5/36 , C22B7/02
CPC分类号： C22B1/243 , C21C5/28 , C22B7/04 , Y02P10/216 , Y02P10/234 , Y10S75/952 , Y10S75/961
摘要： The invention is directed to a process for dehydrating wet BOF scrubber sludge to produce a steelmaking revert having an improved flow rate when handled in a recycle stream. Wet sludge is combined with hot BOF slag to provide a slag/sludge mixture. The wet sludge causes the mixture to have a moisture content greater than 10 % water by weight, and the hot slag, having a temperature below the molten liquid state, vaporizes the water in the mixture and reduces the moisture content to about 4 % water by weight or less. The dehydrated mixture has improved flow rate properties when it is recycled as a steelmaking revert.

9. 发明公开

EP0913487A4 METHOD FOR VACUUM/REDUCED-PRESSURE REFINING AND FACILITY FOR VACUUM/REDUCED-PRESSURE REFINING 失效
标题翻译： VERFAHREN UND EINRICHTUNG ZUR VAKUUM / UNTERDRUCKRAPHATION
公开(公告)号：EP0913487A4
公开(公告)日：2000-03-01
申请号：EP97949234
申请日：1997-12-25
申请人： NIPPON STEEL CORP
发明人： SHIMOMURA KENSUKE , SADACHIKA MASARU , TAKANO HIRONORI , OGAWA GAKU , ABE KENJI , OKIMORI MAYUMI , MAKINO NOBUYUKI , IWASAKI HIROSHI , TANAKA TOMOAKI , MORISHIGE HIROAKI
IPC分类号： C21C5/28 , C21C7/10 , C22B9/04
CPC分类号： C21C7/10 , C21C5/28
摘要： Problem: dust collection in a vacuum/reduced-pressure refining process is conducted using an inexpensive filter without causing damage on and burn of the filter. Solving means: a vacuum/reduced-pressure refining vessel (1), a dry type dust collector (3) using a filter (2) and a reduced-pressure exhaust device (4) are connected sequentially by an upstream-side duct (5) and a downstream-side duct (6), and a gate valve (7) is provided to the upstream-side duct (5). At the time of starting the vaccum/reduced-pressure refining process, non-oxidizing gas is fed into the upstream side of the gate valve (7) and oxygen on the upstream side is replaced thereby substantially. Thereafter, the upstream side is closed gastightly, the gate valve (7) is opened after the closed state on the upstream side is accomplished, and the dust collector (3) is operated. It is preferable that after the vacuum/reduced-pressure refining process the gate valve (7) is closed, only the non-oxidizing gas is fed into the upstream side of the valve to recover the pressure, and then the vessel is opened to the atmosphere, and it is also preferable that after the vacuum/reduced-pressure refining process, an opening part on the duct collector (3) side is closed during the standby till the subsequent vacuum/reduced-pressure refining process is started.
摘要翻译：（问题）在真空/减压精炼处理中进行集尘，使用低成本的过滤器而不会导致过滤器损坏，燃烧等（解决方案）真空/减压精炼容器1连接到干式集尘器3 通过上游管道5使用过滤器2，干式管道收集器3通过下游管道6连接到减压排出装置4，并且在上游管道5中设置截止阀7.在真空/减压精炼处理开始时，将氧化气体注入到截止阀7上游的上游管道中，以基本上更换上游管道中的氧气，然后气密地关闭上游管道。在上游管道中建立了气密关闭状态之后，打开截止阀7，开始集尘器3的运转。在真空/减压精炼处理结束时，截止阀7关闭，只有非氧化性气体被注入上游管道以返回压力，然后使上游管道对大气敞开，优选地是开放的在从真空/减压精炼处理结束到下一次真空/减压精炼处理开始的等待期间，带有集尘器3的端口壁关闭。

10. 发明公开

EP0792939A4 METHOD OF MELTING TINNED IRON SCRAP 失效
标题翻译：熔化废钢方法镀锡
公开(公告)号：EP0792939A4
公开(公告)日：1998-04-29
申请号：EP96932044
申请日：1996-09-27
申请人： SUMITOMO METAL IND
发明人： ISHIDA HIROAKI , ITO YOSHIKI , YAMAMOTO TAKAIKU
IPC分类号： C21B11/02 , C21B13/00 , C21C5/28 , C21C5/46 , C21C7/00 , C22B7/00 , C22B25/06 , C21C5/56
CPC分类号： C22B25/06 , C21B11/02 , C21B13/002 , C21B2100/66 , C21C5/28 , C21C5/466 , C21C7/0006 , C22B7/003 , C22B7/004 , Y02P10/228
摘要： A method of melting tinned iron scrap, in which loosely packed, tinned iron scrap is used as part of iron scrap to be melted while the amount of a combustion assisting gas supplied through a secondary tuyere is adjusted to control a secondary burning rate of the gas, and a method of melting a tinned iron scrap, in which tinned iron scrap is charged before iron scrap other than tinned so that the former may be interposed between the latter and a coke-filled layer. According to the method of melting, a single furnace enables recovering high-energy exhaust gas while manufacturing hot metal, which has a low Sn content and can be used for manufacture of high grade steel, without the aditional steps of detinning and pouring of two ladles and without the use of expensive electric power. In addition, an exhaust gas dust containing a concentrated SnO2 can be effectively used as a Sn source. Accordingly, this method can be applied to a field, in which city scrap such as surface-treated steel or the like is melted.

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