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1. 发明授权

US3425826A Purification of vanadium and columbium (niobium) 失效
标题翻译：钒和铌的纯化（铌）
公开(公告)号：US3425826A
公开(公告)日：1969-02-04
申请号：US3425826D
申请日：1966-03-21
申请人： ATOMIC ENERGY COMMISSION
发明人： SCHMIDT FREDERICK A , CARLSON OSCAR N , KRUPP WILLIAM E , WILHELM HARLEY A
IPC分类号： C22B9/22 , C22B34/22 , C22B34/24 , C22D7/04 , C22B51/00 , C22B55/00
CPC分类号： C22B34/22 , C22B9/228 , C22B34/24

2. 发明授权

US3765870A Method of direct ore reduction using a short cap arc heater 失效
标题翻译：使用短弧加热器直接减少方法
公开(公告)号：US3765870A
公开(公告)日：1973-10-16
申请号：US3765870D
申请日：1971-12-15
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： FEY M , KEMENY G
IPC分类号： C21B11/00 , C22B4/00 , F27D7/02 , H05B7/18 , C22D7/04
CPC分类号： H05B7/185 , C22B4/00
摘要： The oxides of certain metals including iron, chromium, manganese, vanadium and titanium may be finely ground or otherwise pulverized and supplied in a gas flow stream to the heating region of an arc heater. In the heating region an electric arc capable of producing temperatures sufficient to free hydrocarbon radical ions from hydrocarbon gas may be used to assist in separating the metal from the metal oxide ore.
摘要翻译：某些金属（包括铁，铬，锰，钒和钛）的氧化物可以被精细研磨或以其它方式粉碎并以气流流供应到电弧加热器的加热区域。在加热区域中，可以使用能够产生足以从烃气体中释放烃基离子的温度的电弧来辅助将金属与金属氧化物矿石分离。

3. 发明授权

US3729306A Purification of rare-earth metals 失效
标题翻译：稀土金属的净化
公开(公告)号：US3729306A
公开(公告)日：1973-04-24
申请号：US3729306D
申请日：1969-04-28
申请人： US INTERIOR
发明人： HENRIE T , MURPHY J
IPC分类号： C22B9/02 , C30B11/00 , C30B13/00 , C30B13/16 , B01J17/10 , C22D7/04
CPC分类号： C30B13/16 , C22B9/02 , C30B11/00 , C30B13/00 , C30B29/02 , Y02P10/234
摘要： RARE-EARTH METALS ARE PURIFIED AND ALLOYS ARE SEPARATED INTO COMPONENT METALS BY ELECTRICAL FIELD FREEZING UNDER CONDITIONS PROVIDING A SMALL THERMAL GRADIENT AND A TEMPERATURE OF THE LIQUID PORTION OF THE SPECIMEN NEAR THE MELTING POINT OF THE METAL.

4. 发明授权

US3502461A Method of reducing oxidic raw materials 失效
标题翻译：减少氧化原料的方法
公开(公告)号：US3502461A
公开(公告)日：1970-03-24
申请号：US3502461D
申请日：1965-12-10
申请人： ELEKTROMETALLURGIE GMBH
发明人： GUTTLER HELMUT , MULLER-BERGHAUS JOACHIM
IPC分类号： C21B13/00 , C21B13/14 , C22B4/00 , C22B4/04 , C22B5/00 , C22B5/04 , C22B5/06 , C22D7/02 , C22D7/04
CPC分类号： C22B5/04 , C21B13/006 , C21B13/14 , C22B4/00 , C22B4/04 , C22B5/00 , C22B5/06 , Y02P10/136

5. 发明授权

US3964898A Process for batch production of sponge iron 失效
标题翻译：批量生产海绵铁的工艺
公开(公告)号：US3964898A
公开(公告)日：1976-06-22
申请号：US574576
申请日：1975-05-05
申请人： Hans Edward Henrik Murray
发明人： Hans Edward Henrik Murray
IPC分类号： C22B5/02 , C21B13/00 , C21B13/04 , C22B5/12 , F27B3/26 , F27B5/06 , C22D7/04
CPC分类号： C21B13/0073 , C22B5/12 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： Sponge iron is produced by a process including a charging step during which an iron oxide is arranged as a stationary bed in a furnace chamber, a heating step during which a hot, preferably non-reducing atmosphere is cased to flow through the stationary bed, and a reduction step during which a hot reducing atmosphere is caused to flow through the stationary bed to reduce the iron oxide to sponge iron. Optionally, there is a final cooling step during which cold non-oxidizing atmosphere cools the sponge iron. The relatively hot atmosphere which has just passed through the stationary bed is counter-currently heat exchanged with the relatively cool fresh atmosphere about to enter the furnace chamber.
摘要翻译：海绵铁通过包括在炉室中作为固定床布置作为氧化铁的充电步骤的加工步骤，其中热的，优选不还原的气体被套起来流过静止床的加热步骤，以及还原步骤，其中使热还原气氛流过固定床，以将氧化铁还原成海绵铁。任选地，存在冷的非氧化气氛冷却海绵铁的最终冷却步骤。刚刚通过固定床的相对较热的气氛与相对较冷的新鲜气氛进行反向热交换，以进入炉室。

6. 发明授权

US3715200A Electric arc furnace operation 失效
标题翻译：电弧炉操作
公开(公告)号：US3715200A
公开(公告)日：1973-02-06
申请号：US3715200D
申请日：1969-02-17
申请人： FALCONBRIDGE NICKEL MINES LTD
发明人： ARCHIBALD F , HATCH G
IPC分类号： C21C5/52 , C22B4/00 , C22B23/02 , F27B3/08 , C22D7/04 , H05B11/00
CPC分类号： C22B23/023 , C22B4/00
摘要： AN IMPROVED METHOD FOR CONTINUOUS MELTING OF PARTICULATE MATERIAL IN AN ELECTRIC ARC FURNACE. THE PARTICLES ARE RENDERED AS A BODY FREE-FLOWING AND SUBSTANTIALY NONCONDUCTIVE ELECTRICALLY AND A BODY THEREOF IS ESTABLISHED AROUND AND IN CONTACT WITH A VERTICALLY ADJUSTABLE ELECTRODE AND A HIGH VOLTAGE ARE BETWEEN THE ELECTRODE AND A MOLTEN BATH OF THE MATERIAL THEREBY SHIELDING THE ARC AND ESTABLISHING A CONFINED ZONE OF HIGH TEMPERATURE IN CONTACT WITH AND AROUND THE ARC. PARTICLES ARE MELTED IN CONTACT WITH THE ARC AND CONTINUALLY REPLACED BY OTHERS AS MELTING OCCURS THEREBY MAINTAINING THE BODY IN CONTACT WITH THE ARC AND MAINTAINING THE CONFINED HIGH TEMPERATURE ZONE FOR RAPID MELTING THEREIN. THE DISTRIBUTION OF POWER BETWEEN THE ARC AND BATH IS CONTROLLED TO FAVOUR RELEASE OF POWER IN THE ARC AND THEREBY ACHIEVE HIGH THROUGHPUT OF PARTICLES PER UNIT AREA OF FURNACE HEARTH. THE METHOD IS PARTICULARLY ADVANTAGEOUS IN THE RECOVERY OF FERRONICKEL FROM NICKELIFEROUS ORES OF THE OXIDE AND SILICATE TYPES.

7. 发明授权

US3494762A Method of manufacturing microfine metal powder 失效
标题翻译：制造微量金属粉末的方法
公开(公告)号：US3494762A
公开(公告)日：1970-02-10
申请号：US3494762D
申请日：1967-11-27
申请人： IWATANI & CO
发明人： ISHIBASHI WATARU
IPC分类号： B22F9/00 , B23H9/00 , C22D7/04 , C22D7/06
CPC分类号： B23H9/00 , B22F9/00

8. 发明授权

US3891427A Method for melting prereduced ore and scrap 失效
标题翻译：熔化预还原矿石和废料的方法
公开(公告)号：US3891427A
公开(公告)日：1975-06-24
申请号：US29690872
申请日：1972-10-12
申请人： LECTROMELT CORP
发明人： PERSSON JOHN A
IPC分类号： C21C5/52 , C22D7/04
CPC分类号： C21C5/5252 , Y02P10/212
摘要： Highly prereduced iron ore is admitted through the top of a closed electric furnace so that the ore drops in the space between the electrodes and the furnace walls. The low iron content gangue floats to the top of the molten metal pool which forms at the bottom. The melt is maintained with heat produced by electric conduction through the highly resistive gangue or slag. The melt is delivered intermittently or continuously to an electric arc furnace in which scrap steel is added. The desired metallurgical qualities and final pouring temperature of the steel are obtained in the second furnace.
摘要翻译：高度预先还原的铁矿石通过封闭的电炉的顶部进入，使得矿石在电极和炉壁之间的空间中下降。低铁含量的g石漂浮在底部形成的熔融金属池顶部。熔体通过电导通过高阻力脉石或炉渣产生的热量保持。将熔体间歇地或连续地输送到其中添加废钢的电弧炉。在第二炉中获得期望的冶金质量和最终浇注温度。

9. 发明授权

US3709678A Process for the preparation of metals or alloys 失效
标题翻译：制备金属或合金的方法
公开(公告)号：US3709678A
公开(公告)日：1973-01-09
申请号：US3709678D
申请日：1970-03-04
申请人： GALLAY J , GALLAY M , HELARY J , GRAVIERE M DE
发明人： GALLAY J , GALLAY M , HELARY J , DE LA GRAVIERE M
IPC分类号： C22B4/00 , C22B5/04 , C22B5/06 , C22B60/02 , H05B6/22 , C22D7/04 , C22B61/04
CPC分类号： H05B6/22 , C22B4/00 , C22B5/04 , C22B5/06 , C22B60/0213 , Y02P10/253 , Y10S75/959
摘要： A reaction mixture is placed in a furnace comprising a vertical vessel which is transparent to electromagnetic fields and in direct contact with the mixture. High-frequency electric currents are induced in said mixture through the vessel and are of sufficient intensity to start the reaction while the vessel is cooled so as to maintain a solid layer of slag in contact therewith. The reaction mass is maintained molten for a sufficient period of time to cause settling of the metal prior to solidification in situ. The vessel is throttled towards its base.
摘要翻译：将反应混合物置于包括对电磁场透明并与混合物直接接触的垂直容器的炉中。在所述混合物中通过容器诱导高频电流，并且在容器被冷却时具有足够的强度以开始反应，以保持与其接触的炉渣的固体层。将反应物质保持熔融足够的时间以在原位固化之前引起金属沉降。船只朝向其底部。

10. 发明授权

US3429691A Plasma reduction of titanium dioxide 失效
标题翻译：等离子体还原二氧化钛
公开(公告)号：US3429691A
公开(公告)日：1969-02-25
申请号：US3429691D
申请日：1966-08-19
申请人： AEROJET GENERAL CO
发明人： MCLAUGHLIN WILLIAM J
IPC分类号： C22B4/00 , C22B34/12 , C22B53/00 , C22D7/04
CPC分类号： C22B34/1286 , C22B4/005

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