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1. 发明授权

US5011742A Article for controlling the oxygen content in tantalum material 失效
标题翻译：用于控制钽材料中氧含量的文章
公开(公告)号：US5011742A
公开(公告)日：1991-04-30
申请号：US547729
申请日：1990-07-02
申请人： James A. Fife , Robert A. Hard
发明人： James A. Fife , Robert A. Hard
IPC分类号： C21D3/02 , C22F1/02 , C22F1/18
CPC分类号： C22F1/18 , C21D3/02 , C22F1/02 , Y10T428/12097 , Y10T428/12479 , Y10T428/12819
摘要： A process for controlling the oxygen content in tantalum material comprising heating the material under a hydrogen-containing atmosphere in the presence of a getter composite comprising a getter metal encapsulated in tantalum.
摘要翻译：一种用于控制钽材料中的氧含量的方法，包括在含有包封在钽中的吸气剂金属的吸气剂复合物存在下，在含氢气氛下加热该材料。

2. 发明授权

US4960471A Controlling the oxygen content in tantalum material 失效
标题翻译：控制钽材料中的氧含量
公开(公告)号：US4960471A
公开(公告)日：1990-10-02
申请号：US412419
申请日：1989-09-26
申请人： James A. Fife , Robert A. Hard
发明人： James A. Fife , Robert A. Hard
IPC分类号： B22F1/00 , C21D3/02 , C22B34/24 , C22C27/02 , C22F1/00 , C22F1/02 , C22F1/18 , H01G9/052
CPC分类号： C21D3/02 , C22F1/02 , C22F1/18
摘要： A process for controlling the oxygen content in tantalum material comprising heating the material under a hydrogen-containing atmosphere in the presence of a getter composite comprising a getter metal encapsulated in tantalum.
摘要翻译：一种用于控制钽材料中的氧含量的方法，包括在含有包封在钽中的吸气剂金属的吸气剂复合物存在下，在含氢气氛下加热该材料。

3. 发明授权

US4655825A Metal powder and sponge and processes for the production thereof 失效
标题翻译：金属粉末和海绵及其生产方法
公开(公告)号：US4655825A
公开(公告)日：1987-04-07
申请号：US648736
申请日：1984-09-10
申请人： Robert A. Hard , Joseph A. Megy
发明人： Robert A. Hard , Joseph A. Megy
IPC分类号： B22F9/02 , C22C1/04 , B22F9/00
CPC分类号： C22C1/0458 , B22F9/023
摘要： Passified Zinc Soluble Metal-Based Metal particles having a controlled particle size distribution suitable for metallurgy usage without additional particle size reduction and process for making the same. Such metal particles are substantially free of halides, hydrogen, oxygen, nitrogen and carbon and are produced at temperatures considerably below that of arc melting temperatures of Zinc Soluble Metal-Based Metals and alloys based thereon.
摘要翻译：通过的锌可溶性金属基金属颗粒，其具有适用于冶金使用的受控粒度分布，而不需要额外的粒径减小，并且制备该金属颗粒的方法。这种金属颗粒基本上不含卤化物，氢气，氧气，氮气和碳，并且在相当于基于锌可溶性金属基金属的电弧熔化温度的温度和基于其的合金的温度下产生。

4. 发明授权

US4389384A Process for reducing phosphate ore 失效
标题翻译：减少磷矿的工艺
公开(公告)号：US4389384A
公开(公告)日：1983-06-21
申请号：US376335
申请日：1982-05-10
申请人： Robert A. Hard
发明人： Robert A. Hard
IPC分类号： C01B25/02 , C01B25/12 , C01B25/01 , C01B25/16
CPC分类号： C01B25/12
摘要： A process for producing phosphorus pentoxide from phosphorus ore includes formation of a feed with a phosphate ore, silica and solid carbonaceous material in amounts to produce a feed mixture having a CaO/SiO.sub.2 mole ratio of less than about 0.5. The feed mixture is formed into agglomerated feed particles and the particles are heated by exposure to radiation eminating from an oxidation zone to a temperature sufficient to reduce the phosphate by reaction from the solid carbonaceous material to form elemental phosphorus vapor without substantial melting of the agglomerated feed particles. Sufficient oxygen-containing gas is provided to cause oxidation of the elemental phosphorus vapor within the oxidation zone to produce phosphorus pentoxide.
摘要翻译：从磷矿石生产五氧化二磷的方法包括用磷酸盐矿石，二氧化硅和固体碳质材料形成进料的量，以产生CaO / SiO 2摩尔比小于约0.5的进料混合物。进料混合物形成凝聚的进料颗粒，并且通过暴露于从氧化区排出的辐射将颗粒加热到足以通过从固体碳质材料反应而形成元素磷蒸气而减少磷酸盐的温度，而基本上不熔化附聚进料粒子。提供足够的含氧气体以引起氧化区内的元素磷蒸气氧化产生五氧化二磷。

5. 发明授权

US06800259B2 Methods to control H2S and arsine emissions 失效
标题翻译：控制H2S和胂排放的方法
公开(公告)号：US06800259B2
公开(公告)日：2004-10-05
申请号：US10091377
申请日：2002-03-04
申请人： Robert A. Hard
发明人： Robert A. Hard
IPC分类号： C01G3500
CPC分类号： C22B3/10 , C01G35/00 , C01P2006/80 , C22B1/00 , C22B34/24 , Y02P10/234
摘要： Methods to control hydrogen sulfide and/or arsine emissions are described. The method involves adding at least one copper compound (such as a copper(II) compound) to the material, such as material containing sulfur in a sufficient amount to control said emissions. The material that is treated with the copper compound(s) is preferably an ore, such as a valve metal containing ore.
摘要翻译：描述了控制硫化氢和/或胂排放的方法。该方法包括向材料中加入至少一种铜化合物（例如铜（II）化合物），例如含有足够量的硫的材料以控制所述排放。用铜化合物处理的材料优选为矿石，例如含有矿物的阀金属。

6. 发明授权

US4595413A Group IVb transition metal based metal and processes for the production thereof 失效
标题翻译： Ⅳb族过渡金属基金属及其制备方法
公开(公告)号：US4595413A
公开(公告)日：1986-06-17
申请号：US626672
申请日：1984-07-02
申请人： Robert A. Hard , Joseph A. Megy
发明人： Robert A. Hard , Joseph A. Megy
IPC分类号： B22F9/00 , B22F1/00 , B22F9/02 , B22F9/04 , C22C1/04
CPC分类号： B22F9/023 , B22F1/0081 , B22F1/0088 , B22F9/02 , C22C1/04 , C22C1/0425 , C22C1/0458 , C22C1/0466
摘要： Passified Group IVb transition metal-based metal particles having a controlled particle size distribution suitable for metallurgy usage without additional particle size reduction and process for making the same. Such metal particles are substantially free of halides, hydrogen, oxygen, nitrogen and carbon and are produced at temperatures considerably below that of arc melting temperatures of Group IVb transition metals and alloys based thereon.
摘要翻译：通过的IVb族过渡金属基金属颗粒，其具有适用于冶金使用的受控粒度分布，而不需要额外的粒径减小，以及制备该金属颗粒的方法。这种金属颗粒基本上不含卤化物，氢气，氧气，氮气和碳，并且在远远低于第IVb族过渡金属和基于其的合金的电弧熔融温度的温度下产生。

7. 发明授权

US4360234A In-situ method and apparatus for sparging gas bubbles 失效
标题翻译：用于鼓泡气泡的现场方法和装置
公开(公告)号：US4360234A
公开(公告)日：1982-11-23
申请号：US724549
申请日：1976-09-20
申请人： Limin Hsueh , Robert A. Hard , Donald H. Davidson , Ray V. Huff
发明人： Limin Hsueh , Robert A. Hard , Donald H. Davidson , Ray V. Huff
IPC分类号： B01F3/04 , B01F5/04 , B01F5/06 , C02F3/20 , C22B3/02 , C22B3/04 , E21B41/00 , E21B43/28
CPC分类号： E21B43/28 , B01F3/04099 , B01F3/0446 , B01F5/0476 , B01F5/0644 , C02F3/20 , C22B3/02 , C22B3/04 , E21B41/00 , Y02P10/234 , Y02W10/15 , Y10T137/0391 , Y10T137/87652
摘要： Method and apparatus for introducing finely divided gas bubbles into a lixiviant used for in-situ mining of minerals containing metal values, such as copper values. The lixiviant is supplied to a plurality of porous tubes formed of sintered powdered metal while a gas is supplied under pressure about the tubes to cause the gas to penetrate into the interior of the tubes in the form of fine bubbles which are wiped from the interior of the tubes by the lixiviant passing therethrough.The method and apparatus can be advantageously employed in situations where it is desirable to perform in-situ mining with an oxidizing lixiviant. In these cases oxygen is supplied under pressure about the tubes.
摘要翻译：将微细气泡引入用于原位开采含有金属值（例如铜值）的矿物的浸渍剂的方法和装置。将浸渍剂供给到由烧结的粉末金属形成的多个多孔管中，同时在压力下围绕管供应气体，以使气体以细小气泡的形式渗透到管的内部，该微细气泡从内部该管由浸液通过。该方法和装置可以有利地用于需要用氧化浸剂进行原位开采的情况。在这些情况下，氧气在压力下围绕管道供应。

8. 发明授权

US4241951A Recovery of magnesia from oil shale 失效
标题翻译：从油页岩中回收氧化镁
公开(公告)号：US4241951A
公开(公告)日：1980-12-30
申请号：US14007
申请日：1979-02-21
申请人： Robert A. Hard
发明人： Robert A. Hard
IPC分类号： E21B43/247 , E21B43/28 , E21C41/24 , E21C41/10
CPC分类号： E21B43/281 , E21B43/247 , E21C41/24
摘要： A fragmented permeable mass of formation particles containing oil shale and carbonates of calcium and magnesium is formed in an in situ oil shale retort. A combustion zone is advanced through the fragmented mass, whereby kerogen in oil shale in the fragmented mass is decomposed in a retorting zone on the advancing side of the combustion zone to produce gaseous and liquid products including shale oil. The combustion zone also converts the magnesium values in the particles of retorted oil shale to a more leachable form such as magnesium oxide. Magnesium values are selectively leached from the combusted particles, with respect to calcium compounds, with an aqueous solution of a purgeable, acid-forming gas such as carbon dioxide and a minor amount of a polyelectrolyte such as polyacrylic acid, polysulfonic acid, polyphosphonic acid, or the salts thereof. An enriched solution containing magnesium values is withdrawn from the fragmented mass and magnesia is recovered from such enriched solution.
摘要翻译：在原位油页岩蒸馏器中形成含有油页岩和钙和镁的碳酸盐的地层颗粒碎裂的渗透物质。燃烧区通过破碎物质前进，由此在碎片物质中的油页岩中的油母质在燃烧区的前进侧的蒸馏区中分解，以产生包括页岩油的气态和液体产物。燃烧区也将蒸馏油页岩颗粒中的镁值转化为更可浸出的形式，如氧化镁。与煅烧的颗粒相对于钙化合物选择性地将镁值与可清除的酸形成气体如二氧化碳的水溶液和少量的聚电解质如聚丙烯酸，聚磺酸，聚膦酸，或其盐。将含有镁值的富集溶液从碎裂的物质中取出，从富集溶液中回收氧化镁。

9. 发明授权

US06268054B1 Dispersible, metal oxide-coated, barium titanate materials 失效
公开(公告)号：US06268054B1
公开(公告)日：2001-07-31
申请号：US08923680
申请日：1997-09-04
申请人： Stephen A. Costantino , Robert A. Hard , Sridhar Venigalla
发明人： Stephen A. Costantino , Robert A. Hard , Sridhar Venigalla
IPC分类号： B32B516
CPC分类号： C04B35/62805 , C01G23/006 , C01P2002/34 , C01P2002/52 , C01P2004/03 , C01P2004/62 , C01P2006/12 , C01P2006/22 , C01P2006/40 , C04B35/468 , C04B35/4682 , C04B35/6263 , C04B35/62635 , C04B35/628 , C04B35/62807 , C04B35/6281 , C04B35/62815 , C04B35/62818 , C04B35/62823 , C04B35/62826 , C04B35/62894 , C04B35/63424 , C04B2235/3236 , C04B2235/3251 , C04B2235/3275 , C04B2235/3298 , C04B2235/449 , C04B2235/528 , C04B2235/5436 , C04B2235/5445 , C04B2235/5472 , C04B2235/5481 , C04B2235/549 , C04B2235/6027 , C04B2235/77 , C04B2235/785 , C09C3/063 , H01G4/1227 , Y10T428/2991 , Y10T428/2993
摘要： Barium titanate-based particles having a coating comprising an oxide, hydrous oxide, hydroxide or organic acid salt of a metal other than barium or titanium, wherein at least 90 percent of said particles have a particle size less than 0.9 micrometer when said particles are dispersed by high shear mixing, useful in the fabrication of thin, fine-grained dielectric layers for multilayer ceramic capacitors with high breakdown voltage.

10. 发明授权

US4351813A Process for producing phosphorus pentoxide or phosphorus or phosphoric acid 失效
标题翻译：生产五氧化磷或磷或磷酸的方法
公开(公告)号：US4351813A
公开(公告)日：1982-09-28
申请号：US265307
申请日：1981-05-20
申请人： Joseph A. Megy , Robert A. Hard
发明人： Joseph A. Megy , Robert A. Hard
IPC分类号： C01B25/027 , C01B25/12 , C01B25/20 , C01B25/01 , C01B25/02 , C01B25/16
CPC分类号： C01B25/12 , C01B25/027 , C01B25/20
摘要： A process for producing phosphorus pentoxide from phosphate ores in a rotary-type kiln includes heating, by exposure to a flame, a porous bed comprising phosphate ore and solid carbonaceous material to a temperature sufficient to reduce the phosphorus pentoxide to phosphorus vapor. The phosphorus vapor is oxidized in an oxidation zone disposed over the porous bed to heat the porous bed. An inert gas is used to purge the porous bed of carbon monoxide formed during the reduction reaction to drive the reduction reaction more rapidly toward complete reduction of the phosphorus pentoxide and to inhibit oxidation of the phosphorus vapor and carbonaceous material within the porous bed.
摘要翻译：在旋转型窑中从磷酸盐矿石生产五氧化二磷的方法包括通过暴露于火焰中将包含磷酸盐矿石和固体碳质材料的多孔床加热至足以将五氧化二磷还原为磷蒸气的温度。磷蒸汽在设置在多孔床上的氧化区中被氧化以加热多孔床。惰性气体用于清除还原反应过程中形成的一氧化碳的多孔床，以更快速地驱动还原反应，从而完全还原五氧化二磷并抑制多孔床内的磷蒸气和碳质材料的氧化。

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