公开(公告)号：US11486022B2

公开(公告)日：2022-11-01

申请号：US15548900

申请日：2016-02-01

Applicant: JFE STEEL CORPORATION

Inventor： Hidekazu Fujimoto ,  Takashi Anyashiki ,  Toru Shiozawa

IPC: C21B5/00 ,  C22B1/242 ,  C10B53/08 ,  C21B13/00 ,  C10B1/04 ,  C10B31/02 ,  C10B45/00 ,  C10B57/06 ,  C10L5/04 ,  C10L5/06

Abstract: In a ferrocoke manufacturing method by shaping and carbonizing a mixture of coal and iron ore, a hardly softening coal having a button index (CSN) of not more than 2.0 is used as the coal. The coal can be a blend of hardly softening coal and easily softening coal, and the hardly softening coal can be a coal having a button index (CSN) of 1.0 and a volatile matter of not less than 17%, and the easily softening coal can be a coal satisfying that a value obtained by multiplying CSN of easily softening coal by a blending ratio of easily softening coal in all coals is a range of 0.3-5.2. The coal can also be a blend of hardly softening coal and easily softening coal, and the hardly softening coal can be a coal having a button index (CSN) of 1.5-2.0, and the easily softening coal can be a coal satisfying that a value obtained by multiplying CSN of easily softening coal by a blending ratio of easily softening coal in all coals is nit more than 5.0.

公开(公告)号：US20190127492A1

公开(公告)日：2019-05-02

申请号：US16225411

申请日：2018-12-19

Applicant: Biopolynet Inc.

Inventor： Mostafa Aghaei Moghadam ,  Alma Zangeneh

IPC: C08B31/00 ,  C08L3/02 ,  C08B37/00 ,  C22B1/24 ,  C22B1/244 ,  C22B1/242 ,  C22B1/243

Abstract: The present disclosure is generally directed to biopolymers having coiled nanostructures, methods of making those biopolymers, and applications involving those biopolymers. Biopolymers having coiled nanostructures may be produced through a biophysical process by which the shape of a biopolymer macromolecular chain is altered. Biopolymers having coiled nanostructures may then be cross-linked to prepare biopolymeric networks. The biopolymeric networks may be configured to incorporate solid particles, in which they serve to hold the solid particles together against external stresses, solvents, and the like. For this reason, the biopolymers having coned nanostructures are useful in a variety of applications, including in an improved process for forming iron ore pellets.

公开(公告)号：US20190119779A1

公开(公告)日：2019-04-25

申请号：US16094493

申请日：2017-04-26

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Takashi Iseki ,  Yukihiro Goda ,  Jun-ichi Kobayashi ,  Shuji Okada

IPC: C22B5/10 ,  C22B23/02 ,  C22B1/242 ,  C22B1/24 ,  C22C38/08

Abstract: The present invention addresses the problem, in methods for producing a metal or alloy by reducing a mixture that contains an oxide ore, of providing an oxide ore smelting method with good productivity and efficiency. The present invention is an oxide ore smelting method for producing a metal or alloy by reducing a mixture that contains an oxide ore, the method comprising at least: a mixing step S1 for mixing an oxide ore with a carbonaceous reducing agent; a mixture-molding step S2 for molding the mixture obtained to obtain a mixture-molded body; and a reducing step S3 for heating the mixture-molded body obtained at a specified reducing temperature in a reducing furnace.

公开(公告)号：US5591247A

公开(公告)日：1997-01-07

申请号：US232103

申请日：1994-07-25

Applicant: Philippe Dumont ,  Robert Goffin

Inventor： Philippe Dumont ,  Robert Goffin

IPC: B09B3/00 ,  C22B1/242 ,  C22B1/243 ,  C22B7/02

CPC classification number: C22B1/242 ,  B09B3/0025 ,  Y10S75/961

Abstract: A conglomerated material based on metallurgical by-products and characterized in that it contains 2-10% of fibers, 9-25% wt of an alkaline earth metal hydroxide, and % wt of water.

Abstract translation: PCT No.PCT / BE92 / 00047 Sec。 371日期：1994年7月25日 102（e）日期1994年7月25日PCT提交1992年10月30日PCT公布。 公开号WO93 / 09257 日期1993年5月13日一种基于冶金副产物的综合材料，其特征在于其含有2-10％的纤维，9-25重量％的碱土金属氢氧化物和％重量的水。

公开(公告)号：US5587002A

公开(公告)日：1996-12-24

申请号：US981425

申请日：1992-11-25

Applicant: Serge Audebert ,  Francis Audibert

Inventor： Serge Audebert ,  Francis Audibert

IPC: C21C5/28 ,  C22B1/242 ,  C22B1/248 ,  C22B7/00 ,  C22B7/02 ,  C22B7/04 ,  F27D9/00 ,  C22B1/243 ,  C22B1/244

CPC classification number: C22B7/04 ,  C21C5/28 ,  C22B1/242 ,  C22B1/248 ,  C22B7/02 ,  Y02P10/212 ,  Y10S75/962

Abstract: The present invention relates to a process for the preparation of a cooling agent containing iron for refining steel in a steel-making converter. The cooling agent is formed from ovoids produced from fatty slurries from rolling mills.The present invention also relates to a cooling agent which contains iron and is obtained by this process.

Abstract translation: 本发明涉及在炼钢转炉中制备含铁精炼钢的方法。 冷却剂由从轧机的脂肪浆制成的卵形成。 本发明还涉及含有铁并通过该方法获得的冷却剂。

公开(公告)号：US4863512A

公开(公告)日：1989-09-05

申请号：US67753

申请日：1987-06-29

Applicant: Bruce E. Banyai ,  Denis E. LaSota ,  Dennis L. Strunk

Inventor： Bruce E. Banyai ,  Denis E. LaSota ,  Dennis L. Strunk

IPC: C04B26/28 ,  C08L1/00 ,  C08L1/26 ,  C22B1/242 ,  C22B1/244

CPC classification number: C22B1/244 ,  C22B1/242

Abstract: A binder useful for agglomerating a concentrated ore material in the presence of water comprising an alkali metal salt of carboxymethyl cellulose and sodium tripolyphosphate, a process for agglomerating the concentrated ore material using this binder, and the agglomerated product of this process, are disclosed.

公开(公告)号：US4309216A

公开(公告)日：1982-01-05

申请号：US134205

申请日：1980-03-26

Applicant: Rodney F. Merkert

Inventor： Rodney F. Merkert

IPC: C22B1/242 ,  C01B33/02 ,  C01B33/025 ,  C22B1/245 ,  C22C33/04 ,  C22B1/08 ,  B22F1/00

CPC classification number: C22B1/245 ,  C01B33/025

Abstract: A low density, porous compact of prepared mix containing silica fume, finely-divided carbonaceous reducing agent such as petroleum coke or coal, optionally iron and a binder.

Abstract translation: 含有硅粉，精细分解的碳质还原剂如石油焦炭或煤，任选的铁和粘合剂的制备的混合物的低密度多孔压块。

公开(公告)号：US4139587A

公开(公告)日：1979-02-13

申请号：US858987

申请日：1977-12-09

Applicant: Robert J. Cox

Inventor： Robert J. Cox

IPC: B01J2/28 ,  C22B1/242 ,  C22B9/10 ,  B01J2/10 ,  C21C7/00 ,  C22B1/08

CPC classification number: B01J2/28 ,  C22B1/242 ,  C22B9/10

Abstract: An improved process for preparing compacts of finely divided fluorspar for metallurgical use is provided in which water, hydrated lime and molasses are added in specified ratios to fluorspar in a heated mixing vessel. The water facilitates the formation of a lime-molasses coating on the fluorspar particles and impedes reaction of the lime and molasses. The water also provides evaporative cooling of the mixture, subsequent to the mixing operation, causing the molasses to become much more viscous and, resultingly, the mixture to be much less tacky so that it can be efficiently compacted immediately. Following compaction in a compacting machine the compacts are heated in an oven to force the lime and molasses reaction to completion providing a water insoluble binder for the fluorspar particles.

Abstract translation: 提供了一种用于制备用于冶金用途的细碎氟石的压块的改进方法，其中水，熟石灰和糖蜜以特定比例以加热混合容器中的氟石加入。 水有助于在萤石颗粒上形成石灰糖蜜涂层，并阻止石灰和糖蜜的反应。 在混合操作之后，水还提供了混合物的蒸发冷却，使得糖蜜变得更加粘稠，因此混合物的粘性要小得多，从而可以立即有效地压实。 在压实机中压实之后，压块在烘箱中加热以迫使石灰和糖蜜反应完成，为萤石颗粒提供水不溶性粘合剂。

公开(公告)号：US3765869A

公开(公告)日：1973-10-16

申请号：US3765869D

申请日：1970-11-16

Applicant: HUETTENWERK OBERHAUSEN AG

Inventor： SCHIERLOH U ,  HEINRICH P

IPC: C22B1/14 ,  C22B1/242 ,  C22B1/244 ,  C21B1/08

CPC classification number: C22B1/242 ,  Y02P10/216 ,  Y02P10/234

Abstract: Green (nonfired) pellets of iron ore are prepared by pelletizing the iron ore and 2 to 8 percent by weight of finely divided metallic iron with a particle size below 45 microns in the presence of an aqueous solution, suspension or dispersion of an organic binder, preferably a carbonhydrate. Surprisingly, the low-temperature binder, i.e. the starch, dextrine or the like, in combination with the metallic iron powder, affords considerable structural integrity to the pellets during the initial and subsequent stages of the direct reduction in a shaft-type or rotary furnace.

Abstract translation: 通过在有机粘合剂的水溶液，悬浮液或分散体的存在下，将铁矿石和2-8重量％的粒度小于45微米的细碎金属铁造粒，制备铁矿石的绿色（非烧结）颗粒， 优选碳水化合物。 令人惊奇的是，低温粘合剂，即淀粉，糊精等与金属铁粉末的组合，在轴式或旋转式炉的直接还原的初始阶段和后续阶段中对颗粒提供了相当的结构完整性 。

公开(公告)号：US3660073A

公开(公告)日：1972-05-02

申请号：US3660073D

申请日：1969-05-21

Applicant: NALCO CHEMICAL CO

Inventor： YOUNGS ROGER W ,  SANDRI JOSEPH M

IPC: C22B1/242 ,  C21B1/22 ,  C21B1/26

CPC classification number: C22B1/242

Abstract: The invention relates to an organic ore pelletizing aid, to a method for making it, and to a method for pelletizing ore using the pelletizing aid. The pelletizing aid comprises coal which has been treated with an alkali metal hydroxide. A particular advantage is the provision of good ore ''''ballability,'''' even at relatively high moisture content. The pelletizing aid may be coated with a high molecular weight, water dispersible organic polymer to further improve its performance.

Abstract translation: 本发明涉及有机矿石造粒助剂，其制备方法以及使用造粒助剂造粒矿石的方法。 造粒助剂包括用碱金属氢氧化物处理过的煤。 特别的优点是即使在相对较高的含水量下也能提供良好的矿石“球形性”。 造粒助剂可以涂覆高分子量的水分散性有机聚合物，以进一步提高其性能。