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1. 发明授权

US3637370A Production of ferrovanadium alloys 失效
标题翻译：生产富镁合金
公开(公告)号：US3637370A
公开(公告)日：1972-01-25
申请号：US3637370D
申请日：1968-06-10
申请人： FOOTE MINERAL CO
发明人： BUKER DONALD O
IPC分类号： C22C33/00 , C22C1/00 , C22B55/00
CPC分类号： C22C33/003
摘要： A method of producing a low-carbon low-oxygen ferrovanadium alloy by carbon reduction in which an agglomerated mixture of comminuted vanadium oxide, preferably a pentoxide, an iron-source material, and a carbon-source material are heated in vacuum to a temperature of 2,400*-2,800* F. The temperature is maintained until evolution of gas substantially ceases and the product fuses. Additional agglomerate can be charged into the vacuum environment without breaking the vacuum, and molten alloy continuously collected to provide a substantially continuous process.
摘要翻译：一种通过碳还原生产低碳低氧钒铁合金的方法，其中粉碎的氧化钒，优选五氧化二钒，铁源材料和碳源材料的凝聚混合物在真空中加热至温度保持恒定，直至气体放出基本停止，产品保温。可以将附加的附聚物装入真空环境中而不破坏真空，并且连续收集熔融合金以提供基本连续的工艺。

2. 发明授权

US3615169A Process for the preparation of rare earth fluorides 失效
标题翻译：制备稀土氟化物的方法
公开(公告)号：US3615169A
公开(公告)日：1971-10-26
申请号：US3615169D
申请日：1969-10-30
申请人： MINNESOTA MINING & MFG
发明人： THOM KARL F
IPC分类号： C01F17/00 , C07C53/21 , C07C53/50 , C22B59/00 , C22B55/00
CPC分类号： C01F17/0062 , C07C53/21 , C07C53/50 , C22B59/00
摘要： A method is disclosed for the preparation of anhydrous fluorides of high purity substantially free from oxyfluorides of trivalent metals of group 3b of the periodic system particularly of scandium, yttrium and the lanthanide rare earth metals by pyrolysis of fluoroaliphatic-sulfonates of these metals. A process for producing the latter salts which are isolated as complexes with water or organic molecules is also disclosed. These salts have unusual solubility properties.

5. 发明授权

US3712942A Method of producing vanadium compounds by alkaline leaching 失效
标题翻译：通过碱浸液生产钒化合物的方法
公开(公告)号：US3712942A
公开(公告)日：1973-01-23
申请号：US3712942D
申请日：1968-05-29
申请人： VYZK USTAV KOVU
发明人： SVEJDA Z
IPC分类号： C01G31/00 , C22B34/22 , C10G31/00 , C22B3/00 , C22B55/00
CPC分类号： C22B34/22 , C01G31/00
摘要： VANADIUM COMPOUNDS ARE PRODUCED FROM ORES BY ADDING SODIUM HYDROXIDE OF POTASSIUM HYDROXIDE TO FINELY GROUND RAW MATERIAL WHICH CONTAINS V2O3 OR ANOTHER INSOLUBLE FROM OF VANADIUM, THE CONCENTRATION OF THE SODIUM HYDROXDE OR POTASSIUM HYDROXIDE BEING IN THE RANGE OF 250 TO 400 G./L. NA2O OR K2O, WHEREIN THE REACTION MIXTURE IS HEATED TO A TEMPERATURE OF AT LEAST 250* AND OXYGEN OR COMPRESSED AIR ADDED TO OXIDIZE THE V2O3 TO V2O5, AND THEN FILTERING THE SOLUTION SO AS TO SEPARATE THE CRYSTALLINE ALKALINE VANADATE FORMED. IN ADDITION, PRIOR TO THE CRYSTALLIZATION SLUBLE FLUORIDES OR PHOSPHATES MAY BE ADDED TO THE SOLUTION SO AS TO FURTHER INCREASE THE CRYSTALLIZATION.

7. 发明授权

US3464784A Extraction of tetravalent vanadium values from their aqueous solutions using hydroxamic acids 失效
标题翻译：使用氢氧化物从其水溶液中萃取出四价钒值
公开(公告)号：US3464784A
公开(公告)日：1969-09-02
申请号：US3464784D
申请日：1967-06-01
申请人： GEN MILLS INC
发明人： SWANSON RONALD R
IPC分类号： C22B34/22 , C01G31/00 , C22B55/00
CPC分类号： C22B34/22

9. 发明授权

US3753681A Beneficiation of vanadium-containing materials 失效
标题翻译：含钒材料的受益
公开(公告)号：US3753681A
公开(公告)日：1973-08-21
申请号：US3753681D
申请日：1970-10-01
申请人： CONTINENTAL ORE CORP
发明人： VOJKOVIC M
IPC分类号： C22B34/22 , C22B1/00 , C22B7/04 , C22B55/00
CPC分类号： C22B34/22
摘要： A process for the beneficiation of vanadium-containing materials comprising preheating the material in the absence of oxygen and then reacting the hot material with oxygen to yield soluble vanadium compounds. This Application for a patent is a continuation-in-part of my earlier U.S. Pat. application Ser. No. 755,431 filed on Aug. 26, 1968, and now abandoned.
摘要翻译：一种用于选择含钒材料的方法，包括在不存在氧气的情况下预热该材料，然后使热材料与氧气反应以产生可溶性钒化合物。

10. 发明授权

US3656936A Vanadium recovery process 失效
标题翻译： VANADIUM RECOVERY PROCESS
公开(公告)号：US3656936A
公开(公告)日：1972-04-18
申请号：US3656936D
申请日：1970-10-14
申请人： OIL SHALE CORP
发明人： HAAS FRANK C
IPC分类号： C22B34/22 , C22B55/00
CPC分类号： C22B34/22
摘要： A process is provided for recovering vanadium values from highly alkaline, calcium-rich calcines, which are usually the roasted product of low-grade vanadium-bearing calcitic ores. The process involves slurrying the calcine in water and carbonating the slurry to a pH of 5.0 to 9.0 to extract the soluble vanadium species from the slurry. A basic anion exchange resin is added to the carbonated slurry thereby increasing the vanadium recovery by shifting the extraction equilibrium.
摘要翻译：提供了一种从高碱性，富钙的煅烧回收钒值的方法，通常是低品位含钒方解石矿石的焙烤产品。该方法包括将煅烧物浆化成水，并将浆料碳酸化至5.0至9.0的pH以从浆料中提取可溶性钒物质。向碳酸化浆料中加入碱性阴离子交换树脂，从而通过转移萃取平衡来提高钒回收率。

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