公开(公告)号：US09359655B2

公开(公告)日：2016-06-07

申请号：US14358619

申请日：2011-11-15

申请人： Helge Krogerus ,  Pasi Mäkelä

发明人： Helge Krogerus ,  Pasi Mäkelä

IPC分类号： C22B1/24 ,  C22C1/00 ,  C22B1/16 ,  C22B9/00 ,  C22C38/18 ,  C22C27/06 ,  C21C5/52 ,  C22B5/06

CPC分类号： C22B1/2406 ,  C21C5/5264 ,  C22B1/16 ,  C22B5/06 ,  C22B9/00 ,  C22C1/00 ,  C22C27/06 ,  C22C38/18 ,  Y02P10/216

摘要： The invention relates to a pelletizing feed containing chromite ore, at least one nickel salt, and silicon carbide as the only carbonaceous material and the only reducing agent. The invention also relates to process for manufacturing the pelletizing feed comprising the steps providing chromite, at least one nickel salt and silicon carbide, and mixing chromite, at least one nickel salt and silicon carbide. The invention also relates to use of the pelletizing feed as a starting material for the manufacture of sintering feed. The invention also relates to a sintering feed in the form of pellets containing the pelletizing feed. The invention also relates to sintered pellets containing the sintering feed. The invention also relates to process for manufacturing the sintered pellets. The invention also relates to use of the sintered pellets as a component of smelting feed. The invention also relates to smelting feed comprising sintered pellets. The invention also relates to process for manufacturing ferrochrome alloy. The invention also relates to ferrochrome alloy obtainable by the method.

摘要翻译： 本发明涉及含有铬铁矿，至少一种镍盐和碳化硅作为唯一的碳质材料和唯一的还原剂的造粒原料。 本发明还涉及制造造粒原料的方法，其包括提供铬铁矿，至少一种镍盐和碳化硅并且混合亚铬酸盐，至少一种镍盐和碳化硅的步骤。 本发明还涉及使用造粒原料作为制造烧结原料的原料。 本发明还涉及包含造粒原料的颗粒形式的烧结进料。 本发明还涉及含有烧结原料的烧结颗粒。 本发明还涉及烧结颗粒的制造方法。 本发明还涉及烧结颗粒作为冶炼原料成分的用途。 本发明还涉及包含烧结颗粒的熔融进料。 本发明还涉及制造铬铁合金的方法。 本发明还涉及通过该方法获得的铬铁合金。

公开(公告)号：US08685137B2

公开(公告)日：2014-04-01

申请号：US13500313

申请日：2010-10-26

申请人： Johan Arvidsson

发明人： Johan Arvidsson

IPC分类号： C22B34/00

CPC分类号： C21C7/00 ,  B22F3/001 ,  B22F8/00 ,  B22F9/22 ,  B22F2999/00 ,  C21C7/0006 ,  C21C7/0056 ,  C22B5/06 ,  C22B7/001 ,  C22B34/36 ,  C22C27/04 ,  C22C29/08 ,  C22C30/00 ,  C22C38/22 ,  Y02P10/214 ,  Y02P10/24 ,  Y02W30/541 ,  B22F2201/02 ,  B22F2201/013

摘要： The invention relates to a process for producing an iron-and/or tungsten containing powder or powder agglomerate including the steps of: a) mixing at least a first powder fraction comprising a tungsten carbide containing powder, and at least a second powder fraction comprising an iron oxide powder and/or a tungsten oxide containing powder and optionally an iron powder, the weight of the first fraction being in the range of 50-90% by weight of the mix and the weight of the second fraction being in the range of 10-50% by weight of the mix, b) heating the mix of step a) to a temperature in the range of 400-1300° C., preferably 1000-1200° C. The invention also relates to an iron-and/or tungsten containing powder or powder agglomerate.

摘要翻译： 本发明涉及一种生产含铁和/或钨的粉末或粉末附聚物的方法，包括以下步骤：a）将包含含碳化钨的粉末的至少第一粉末部分和至少包含第 氧化铁粉末和/或含氧化钨粉末和任选的铁粉末，第一部分的重量在混合物的50-90重量％的范围内，第二部分的重量在10 -50重量％的混合物，b）将步骤a）的混合物加热至400-1300℃，优选1000-1200℃的温度。本发明还涉及铁和/或 含钨粉末或粉末附聚物。

公开(公告)号：US07896945B2

公开(公告)日：2011-03-01

申请号：US12448707

申请日：2007-12-21

申请人： Yaghoub Sayad-Yaghoubi

发明人： Yaghoub Sayad-Yaghoubi

IPC分类号： C22B21/02

CPC分类号： C22B5/10 ,  C22B5/06 ,  C22B21/02

摘要： A mass of solid aluminium carbide containing product is produced by injecting particulate alumina into a bath (30) of molten aluminium metal; and injecting carbonaceous material, consisting of, containing or yielding carbon, into the bath (30). The bath (30) of molten aluminium metal is maintained at a superheated temperature to heat and react carbon with molten aluminium to produce solid aluminium carbide which mixes with alumina to form a mass (36) containing entrapped gas and entrapped molten aluminium metal and having a bulk or apparent density less than aluminium. The mass is allowed to accumulate as a mass of solid aluminium carbide containing product on the upper surface of the bath. The carbonaceous material is a hydrocarbon material or is produced by pyrolysis, decomposition or cracking of a hydrocarbon material.

摘要翻译： 通过将微粒氧化铝注入到熔融金属铝的浴（30）中来生产一批含固体碳酸铝的产品; 并且将由碳含量组成，含有或产生碳的碳质材料注入到所述浴（30）中。 熔融铝金属的浴（30）保持在过热温度以加热碳与熔融铝反应以产生固体碳化铝，其与氧化铝混合以形成包含夹带气体和夹带的熔融铝金属的块（36），并具有 体积或表观密度小于铝。 允许该质量在浴的上表面上以大量的固体碳酸铝容纳物质积聚。 碳质材料是烃类材料，或通过碳氢化合物材料的热解，分解或裂化产生。

公开(公告)号：US20100147113A1

公开(公告)日：2010-06-17

申请号：US12334687

申请日：2008-12-15

申请人： Marshall J. Bruno ,  Gerald E. Carkin ,  David H. DeYoung ,  Ronald M. Dunlap, SR.

发明人： Marshall J. Bruno ,  Gerald E. Carkin ,  David H. DeYoung ,  Ronald M. Dunlap, SR.

IPC分类号： C22B21/02

CPC分类号： C22B21/02 ,  C22B5/06 ,  C22B21/064

摘要： A method of recovering aluminum is provided. An alloy melt having Al4C3 and aluminum is provided. This mixture is cooled and then a sufficient amount of a finely dispersed gas is added to the alloy melt at a temperature of about 700° C. to about 900° C. The aluminum recovered is a decarbonized carbothermically produced aluminum where the step of adding a sufficient amount of the finely dispersed gas effects separation of the aluminum from the Al4C3 precipitates by flotation, resulting in two phases with the Al4C3 precipitates being the upper layer and the decarbonized aluminum being the lower layer. The aluminum is then recovered from the Al4C3 precipitates through decanting.

摘要翻译： 提供铝的回收方法。 提供具有Al 4 C 3和铝的合金熔体。 将该混合物冷却，然后在约700℃至约900℃的温度下，向合金熔体中加入足够量的细分散气体。回收的铝是脱碳碳氢化生产的铝，其中添加 足够量的精细分散的气体通过浮选来实现铝与Al 4 C 3沉淀物的分离，导致Al 4 C 3沉淀物为上层和脱碳铝为下层的两相。 然后通过倾析从Al 4 C 3沉淀物中回收铝。

公开(公告)号：US20070084306A1

公开(公告)日：2007-04-19

申请号：US11251708

申请日：2005-10-17

申请人： Jeremy Jones

发明人： Jeremy Jones

IPC分类号： C21B3/02

CPC分类号： C21C7/0087 ,  C21C7/076 ,  C22B5/06 ,  C22B7/04 ,  Y02P10/212 ,  Y02P10/242

摘要： A slag composition containing steelmaking slag and from about 0.5 to about 10 weight percent of reducing agent. The steelmaking slag contains from about 20 to about 55 weight percent of calcium oxide, from about 10 to about 50 weight percent of ferrous oxide, from about 5 to about 20 weight percent of magnesium oxide, from about 5 to about 20 weight percent of silicon oxide, from 0.5 to about 10 weight per cent aluminum oxide, and from about 0.5 to about 10 weight percent of manganese oxide. The reducing agent contains from about 5 to about 80 weight percent of calcium carbide and from about 10 to about 70 weight percent of an admixture containing silicon or titanium or silicon carbide or combinations thereof.

摘要翻译： 含有炼钢渣的炉渣组合物和约0.5至约10重量％的还原剂。 炼钢渣含有约20至约55重量％的氧化钙，约10至约50重量％的氧化亚铁，约5至约20重量％的氧化镁，约5至约20重量％的硅 氧化物，0.5至约10重量％的氧化铝和约0.5至约10重量％的氧化锰。 还原剂含有约5至约80重量％的碳化钙和约10至约70重量％的含硅或钛或碳化硅的混合物或其组合。

公开(公告)号：US20020170387A1

公开(公告)日：2002-11-21

申请号：US09862196

申请日：2001-05-21

发明人： Tor Lindstad

IPC分类号： C01B031/30 ,  C22B021/00

CPC分类号： B01D53/46 ,  B01D2251/208 ,  C01B32/914 ,  C01P2004/61 ,  C01P2006/12 ,  C22B5/06 ,  C22B21/02 ,  Y02P10/214 ,  Y02P10/218

摘要： A method for aluminum recovery during the carbothermic production of aluminum in a smelting furnace (1,2) is disclosed, where during carbothermic reduction of alumina, aluminum and aluminum suboxide vapors are produced (3, 4), which are reacting with carbon. Reactive carbon is generated in situ by the cracking of hydrocarbon compounds (6) in a separate closed reactor vessel (5) at a temperature greater than about 1955null C. Solid aluminum carbide that formed during the reaction can then be recycled by a conduit (8) to the primary reactor for reduction to aluminum, and reactor gas (10) can be fed to a cooler (9).

摘要翻译： 公开了一种在冶炼炉（1,2）中的碳热还原生产中铝回收的方法，其中在氧化铝的碳热还原期间，生产与碳反应的铝和铝低氧化物蒸汽（3,4）。 活性炭是通过在大于约1955℃的温度下在单独的封闭反应器容器（5）中裂解烃化合物（6）而原位生成的。然后可以在反应过程中形成的固体碳化铝通过导管 8）到主反应器以还原成铝，并且反应器气体（10）可以被供给到冷却器（9）。

公开(公告)号：US4652307A

公开(公告)日：1987-03-24

申请号：US590155

申请日：1984-03-16

申请人： Herman Gardner

发明人： Herman Gardner

IPC分类号： B22F1/00 ,  C21B15/00 ,  C22B5/06 ,  C22B23/02 ,  C22C33/02

CPC分类号： C22B5/06 ,  B22F1/0088 ,  C21B15/00 ,  C22B23/02 ,  C22C33/02 ,  B22F2999/00 ,  Y10S75/958

摘要： An iron containing 3% to 6% carbon and small quantities of manganese, silicon, sulfur and phosphorus produced by the blast furnace, electric furnace, or other well-known furnace requires a relatively low temperature to convert to the molten state. This molten iron can be refined on the surface of molten silver at temperatures from 1000.degree. C. to 1525.degree. C. containing on the surface of the molten metal an oxide of lead or oxides of nickel, cobalt, iron, manganese, copper, zinc, and other metals whose oxides are reducible to the elemental state by carbon resulting in a refined or alloyed steel. The carbon monoxide formed in this reaction may be combined with hydrogen at temperatures from 400.degree. C. to 1000.degree. C. and 100 atmospheres to 150 atmospheres in the presence of a proper catalyst according to the known Fischer-Tropsch reaction to form a petroleum product. Alternately a finely ground iron containing 3% carbon to 6% carbon can be furnaced at 1000.degree. C. to 1525.degree. C. to produce either iron powder to fabricate iron powder parts or a steel billet to make steels of any shape or form with rolling equipment. Also the carbides of nickel, cobalt, and other elements can be converted to the elemental state by reaction with an oxide on the surface of the molten metal.

摘要翻译： 由高炉，电炉或其他众所周知的炉产生的含有3％至6％碳和少量锰，​​硅，硫和磷的铁需要相对较低的温度才能转化为熔融状态。 该熔融铁可在熔融金属表面上在1000℃至1525℃的温度下在熔融金属表面上精炼，其中，氧化物为镍，钴，铁，锰，铜，锌 ，以及氧化物通过碳还原成元素状态的其他金属，导致精炼或合金化的钢。 在该反应中形成的一氧化碳可以在适当的催化剂存在下，根据已知的费 - 托反应，在400℃至1000℃和100大气压至150大气压的温度下与氢气结合，形成石油产品 。 或者，含有3％碳至6％碳的精细研磨的铁可以在1000℃至1525℃下加热以产生铁粉以制造铁粉部件或钢坯，以制造任何形状或形式的钢，其中轧制 设备。 镍，钴等元素的碳化物也可以通过与熔融金属表面的氧化物反应而转化为元素状态。

公开(公告)号：US4521385A

公开(公告)日：1985-06-04

申请号：US470070

申请日：1983-02-28

申请人： Hans G. Brandstatter

发明人： Hans G. Brandstatter

IPC分类号： C22B5/06 ,  C22B34/12 ,  C01G23/02

CPC分类号： C22B5/06 ,  C22B34/1222 ,  Y02P10/23

摘要： Titanium and iron values are recovered from ores, concentrates and slags by effecting solid-state reduction and carburization to form titanium carbide and carburized iron, separation of the carburized iron, and low temperature chlorination of the titanium carbide to gaseous substantially pure titanium tetrachloride, which may be oxidized to pigmentary titanium dioxide.

摘要翻译： 通过进行固态还原和渗碳以形成碳化钛和渗碳铁，分离渗碳铁以及将碳化钛低温氯化为气态的基本上纯的四氯化钛，从矿石，精矿和炉渣回收钛和铁的价值，其中 可能被氧化成颜料二氧化钛。

公开(公告)号：US3951647A

公开(公告)日：1976-04-20

申请号：US309737

申请日：1972-11-27

申请人： Paul H. Cardwell ,  Bruce E. Barton

发明人： Paul H. Cardwell ,  Bruce E. Barton

IPC分类号： C22B5/04 ,  C22B5/06 ,  C22B47/00

CPC分类号： C22B5/06 ,  C22B47/00 ,  C22B5/04

摘要： A process is provided to produce pure elemental metal; such as manganese, by reacting a halide of the elemental metal with aluminum. The halide of the elemental metal is present as a molten pool wherein the temperature at the bottom of the pool is sufficient to maintain the elemental metal molten and the temperature at the top of the pool is below the boiling point of the metal halide in the pool. Aluminum halide is removed as a vapor overhead and a layer of molten metal collects at the bottom of the pool of molten halide.

摘要翻译： 提供了一种制备纯元素金属的方法; 例如锰，通过使元素金属的卤化物与铝反应。 元素金属的卤化物作为熔池存在，其中池底部的温度足以保持元素金属熔化，并且池顶部的温度低于池中金属卤化物的沸点 。 卤化铝作为蒸汽顶部除去，熔融金属层聚集在卤化物池的底部。

公开(公告)号：US3900312A

公开(公告)日：1975-08-19

申请号：US29769572

申请日：1972-10-16

申请人： TOTH ALUMINUM CORP

发明人： TERRY JOHN CHRISTOPHER ,  LIPPMAN ALFRED ,  SEBENIK ROGER FRANK ,  HARRIS JR HARRY GORDON

IPC分类号： B22F9/24 ,  B22F9/28 ,  C22B5/04 ,  C22B5/06 ,  C22B21/00 ,  C22B34/12 ,  C22B21/02

CPC分类号： C22B34/1277 ,  C22B5/04 ,  C22B5/06 ,  C22B21/0061 ,  C22B34/1272

摘要： A method of producing aluminum in essentially elemental form wherein aluminum chloride in liquid phase is reacted with manganese in solid phase. The reaction is carried out in a vessel at a pressure and a relatively low temperature such that the reactants will maintain the respective phases. The manganese reduces the liquid aluminum chloride and forms essentially elemental aluminum and manganese chloride. The temperature range is between 180*-600*C and the pressure range is 15-450 psia.