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1. 发明授权

US5059563A Synthesis of refractory metal boride powders of predetermined particle size 失效
$Synthesis of refractory metal boride powders of predetermined particle size$
标题翻译：预处理颗粒尺寸的金属硼化物粉末的合成
公开(公告)号：US5059563A
公开(公告)日：1991-10-22
申请号：US217926
申请日：1988-07-12
申请人： Bijan Khazai , William G. Moore
发明人： Bijan Khazai , William G. Moore
IPC分类号： C01B35/04 , C04B35/58
CPC分类号： C04B35/58064 , C04B35/5156 , C04B35/5158 , C04B35/58071 , C04B35/58078 , C04B35/645
摘要： Metal boride powders can be produced with a predetermined particle size by controlling reaction conditions. The metal boride powder is produced by reacting a solid boron source, a metal source and a reductant under conditions sufficient to produce a metal boride powder with a particle size correlating to that of the solid boron source. The reaction is preferably stopped after the formation of products but before any appreciable crystal growth occurs.

2. 发明授权

US5160698A Process for producing metal borides using finely comminuted mixture of reactants 失效
标题翻译：使用细粉碎的反应物混合物制备金属硼化物的方法
公开(公告)号：US5160698A
公开(公告)日：1992-11-03
申请号：US724618
申请日：1991-07-02
申请人： Bijan Khazai , William G. Moore
发明人： Bijan Khazai , William G. Moore
IPC分类号： C01B35/04
CPC分类号： C01B35/04
摘要： A mixture of reactants having a particle size of about 200 microns is heated to convert said mixture comprising a metal compound, carbon, and a boron source to a metal boride having an average particle size of about 0.05 to about 0.5 micron. Said metal compound is one which can be converted to the corresponding metal boride by reaction with carbon and a boron source under controlled conditions of time and temperature.
摘要翻译：将具有约200微米粒度的反应物混合物加热，将包含金属化合物，碳和硼源的所述混合物转化成平均粒径为约0.05至约0.5微米的金属硼化物。所述金属化合物是通过在时间和温度的受控条件下与碳和硼源反应而转化为相应的金属硼化物的化合物。

3. 发明授权

US5342811A Composition and method for producing boron carbide/titanium diboride composite ceramic powders using a boron carbide substrate 失效
标题翻译：使用碳化硼基板制造碳化硼/二硼化钛复合陶瓷粉末的组合物和方法
公开(公告)号：US5342811A
公开(公告)日：1994-08-30
申请号：US698435
申请日：1991-05-10
申请人： Bijan Khazai , William G. Moore
发明人： Bijan Khazai , William G. Moore
IPC分类号： C04B35/563 , C04B35/58 , C04B35/56
CPC分类号： C04B35/58071 , C04B35/563 , C04B35/645 , C04B35/65
摘要： A composition and method for producing boron carbide/titanium diboride composite ceramic powders is disclosed. The process comprises the ordered steps of (a) intimately mixing as reactants boron carbide and a titanium source, such that the average reactant particle size is less than about 20 microns and substantially all discrete reactant areas are less than about 50 microns, and (b) reacting the product of step (a) under conditions sufficient to produce a boron carbide/titanium diboride composite ceramic powder wherein at least a portion of the boron carbide particles form substrates to which at least a portion of the titanium diboride particles are attached. The method can be used to produce a composite ceramic powder having boron carbide and titanium diboride particles less than about 20 microns in diameter. This powder can then be densified using known densification techniques to form a densified part wherein the titanium diboride grains have an average size of less than about 20 microns in diameter and the boron carbide grains having an average size of less than about 50 microns.
摘要翻译：公开了一种用于生产碳化硼/二硼化钛复合陶瓷粉末的组合物和方法。该方法包括（a）作为反应物碳化硼和钛源充分混合的有序步骤，使得平均反应物粒度小于约20微米，并且基本上所有离散的反应物区域小于约50微米，和（b ）在足以产生碳化硼/二硼化钛复合陶瓷粉末的条件下使步骤（a）的产物反应，其中至少一部分碳化硼颗粒形成至少部分二硼化钛颗粒所附着的基底。该方法可用于生产具有直径小于约20微米的碳化硼和二硼化钛颗粒的复合陶瓷粉末。然后可以使用已知的致密化技术将该粉末致密化以形成致密化部分，其中二硼化钛颗粒的直径平均尺寸小于约20微米，碳化硼颗粒的平均尺寸小于约50微米。

4. 发明授权

US5169832A Synthesis of refractory metal boride powders of predetermined particle size 失效
$Synthesis of refractory metal boride powders of predetermined particle size$
标题翻译：预处理颗粒尺寸的金属硼化物粉末的合成
公开(公告)号：US5169832A
公开(公告)日：1992-12-08
申请号：US217926
申请日：1988-07-12
申请人： Bijan Khazai , William G. Moore
发明人： Bijan Khazai , William G. Moore
IPC分类号： C01B35/04 , C04B35/58
CPC分类号： C04B35/58064 , C04B35/5156 , C04B35/5158 , C04B35/58071 , C04B35/58078 , C04B35/645
摘要： Metal boride powders can be produced with a predetermined particle size by controlling reaction conditions. The metal boride powder is produced by reacting a solid boron source, a metal source and a reductant under conditions sufficient to produce a metal boride powder with a particle size correlating to that of the solid boron source. The reaction is preferably stopped after the formation of products but before any apprecible crystal growth occurs.

5. 发明授权

US5108962A Composition and method for producing boron carbide/titanium diboride composite ceramic powders using a boron carbide substrate 失效
标题翻译：使用碳硼化物基板生产碳硼碳/二氧化钛复合陶瓷粉末的组合物和方法
公开(公告)号：US5108962A
公开(公告)日：1992-04-28
申请号：US198969
申请日：1988-05-26
申请人： Bijan Khazai , William G. Moore
发明人： Bijan Khazai , William G. Moore
IPC分类号： C04B35/563 , C04B35/58
CPC分类号： C04B35/58071 , C04B35/563 , C04B35/645 , C04B35/65
摘要： A composition and method for producing boron carbide/titanium diboride composite ceramic powders is disclosed. The process comprises the ordered steps of (a) intimately mixing as reactants boron carbide and a titanium source, such that the average reactant particle size is less than about 20 microns and substantially all discrete reactant areas are less than about 50 microns, and (b) reacting the product of step (a) under conditions sufficient to produce a boron carbide/titanium diboride composite ceramic powder wherein at least a portion of the boron carbide particles form substrates to which at least a portion of the titanium diboride particles are attached. The method can be used to produce a composite ceramic powder having boron carbide and titanium diboride particles less than about 20 microns in diameter. This powder can then be densified using known densification techniques to form a densified part wherein the titanium diboride grains have an average size of less than about 20 microns in diameter and the boron carbide grains having an average size of less than about 50 microns. Because of the uniformity of dispersion that can result, the densified part shows a microstructure that is also very uniform in distribution of boron carbide and titanium diboride.

6. 发明授权

US5302773A Process of oxidizing aliphatic hydrocarbons employing a molybdate catalyst encapsulated in a hard, glassy silica matrix 失效
标题翻译：使用包封在硬的玻璃状二氧化硅基质中的钼酸盐催化剂氧化脂族烃的方法
公开(公告)号：US5302773A
公开(公告)日：1994-04-12
申请号：US797882
申请日：1991-11-26
申请人： G. Edwin Vrieland , Stephen J. Doktycz , Bijan Khazai
发明人： G. Edwin Vrieland , Stephen J. Doktycz , Bijan Khazai
IPC分类号： B01J23/28 , B01J37/00 , C03C14/00 , C07B61/00 , C07C5/42 , C07C11/00 , C07C5/09 , B01J21/08
CPC分类号： C03C14/004 , B01J23/28 , B01J37/0018 , C07C5/42 , C03C2214/04 , C07C2521/04 , C07C2521/08 , C07C2521/10 , C07C2523/04 , C07C2523/28
摘要： A process for preparing olefins and diolefins in high productivity which involves contacting an aliphatic hydrocarbon, such as butane, with a heterogeneous catalyst composition containing reactive oxygen under reaction conditions sufficient to produce a more highly unsaturated aliphatic hydrocarbon, such as 1,3-butadiene. The catalyst composition contains a glassy silica matrix of specified surface area and macro-porosity into which are encapsulated domains of a catalyst component containing oxides of magnesium and molybdenum. The catalyst has high crush strength and is useful in transport reactors.
摘要翻译：一种以高生产率制备烯烃和二烯烃的方法，其包括使脂族烃如丁烷与含有活性氧的非均相催化剂组合物在足以产生更高度不饱和的脂族烃如1,3-丁二烯的反应条件下接触。催化剂组合物含有具有特定表面积和大孔隙率的玻璃状二氧化硅基质，其中含有含有镁和钼的氧化物的催化剂组分的包封区域。该催化剂具有很高的压碎强度，并且可用于运输反应器。

7. 发明授权

US5258347A Process of oxidizing aliphatic hydrocarbons employing a molybdate catalyst composition 失效
标题翻译：使用钼酸盐催化剂组合物氧化脂族烃的方法
公开(公告)号：US5258347A
公开(公告)日：1993-11-02
申请号：US890972
申请日：1992-05-29
申请人： Bijan Khazai , Craig B. Murchison , G. Edwin Vrieland
发明人： Bijan Khazai , Craig B. Murchison , G. Edwin Vrieland
IPC分类号： B01J23/28 , C07C5/42 , B01J23/00
CPC分类号： C07C5/42 , B01J23/28 , C07C2521/04 , C07C2521/10 , C07C2523/04 , C07C2523/28 , Y10S502/524
摘要： A process for the production of olefins and diolefins, such as 1,3-butadiene, comprising contacting an aliphatic hydrocarbon, such as butane, with a heterogeneous catalyst composition containing reactive oxygen under reaction conditions such that a more highly unsaturated aliphatic hydrocarbon is selectively formed in a high productivity. The catalyst is a composition comprising (a) a support component of magnesia and alumina and/or magnesium aluminate spinel, and (b) a catalyst component of magnesia, an oxide of molybdenum, a Group IA metal oxide promoter, and optionally vanadium oxide. Catalysts of high surface area and high attrition resistance are claimed.
摘要翻译：一种生产烯烃和二烯烃如1,3-丁二烯的方法，包括在反应条件下使脂族烃如丁烷与含有活性氧的非均相催化剂组合物接触，使得选择性地形成更高度不饱和的脂族烃在高生产率。催化剂是包含（a）氧化镁和/或铝酸镁尖晶石的载体组分的组合物，和（b）氧化镁的催化剂组分，钼的氧化物，第IA族金属氧化物促进剂和任选的氧化钒。要求具有高表面积和高耐磨性的催化剂。

8. 发明授权

US5146031A Process of oxidizing aliphatic hydrocarbons employing a molybdate catalyst composition 失效
标题翻译：使用多元催化剂组合物氧化二氧化碳的方法
公开(公告)号：US5146031A
公开(公告)日：1992-09-08
申请号：US505751
申请日：1990-04-06
申请人： Bijan Khazai , G. Edwin Vrieland , Craig B. Murchison , Ravi S. Dixit , Edwin D. Weihl
发明人： Bijan Khazai , G. Edwin Vrieland , Craig B. Murchison , Ravi S. Dixit , Edwin D. Weihl
IPC分类号： B01J23/28 , B01J37/00 , C03C14/00 , C07B61/00 , C07C5/42 , C07C11/00
CPC分类号： C07C5/42 , B01J23/28 , B01J37/0018 , C03C14/004 , C03C2214/04 , C07C2521/04 , C07C2521/08 , C07C2521/10 , C07C2523/04 , C07C2523/28
摘要： A process for the production of olefins and diolefins, such as 1,3-butadiene, comprising contacting an aliphatic hydrocarbon, such as butane, with a heterogeneous catalyst composition containing reactive oxygen under reaction conditions such that a more highly unsaturated aliphatic hydrocarbon is selectively formed in a high productivity. The catalyst is a composition comprising (a) a support component of magnesia and alumina and/or magnesium aluminate spinel, and (b) a catalyst component of magnesia, an oxide of molybdenum, a Group IA metal oxide promoter, and optionally vanadium oxide. Catalysts of high surface area and high attrition resistance are claimed.

9. 发明授权

US5902518A Self-regulating polymer composite heater 失效
标题翻译：自调节聚合物复合加热器
公开(公告)号：US5902518A
公开(公告)日：1999-05-11
申请号：US902122
申请日：1997-07-29
申请人： Bijan Khazai , George M. Nichols
发明人： Bijan Khazai , George M. Nichols
IPC分类号： H05B3/14 , H01B1/06
CPC分类号： H05B3/146
摘要： A polymer matrix type heater filled with a conductive particulate moiety is disclosed wherein the preferable polymer is a polyurethane shape-memory polymer and the preferable filler is spherical thermal carbon black particles. Optional insulating fillers may be added to adjust the thermal and electrical properties of the heater. The resulting self-regulating heater has fast heat-up, sharp turnoff, and negligible temperature fluctuation.
摘要翻译：公开了一种填充有导电颗粒部分的聚合物基质型加热器，其中优选的聚合物是聚氨酯形状记忆聚合物，并且优选的填料是球形热炭黑颗粒。可以添加可选的绝缘填料以调节加热器的热和电特性。所产生的自调节加热器具有快速的加热，急剧的关闭和可忽略的温度波动。

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