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31. 发明授权

US5447694A Exhaust gas conversion method and apparatus using thermally stable zeolites 失效
标题翻译：使用热稳定沸石的废气转化方法和装置
公开(公告)号：US5447694A
公开(公告)日：1995-09-05
申请号：US183472
申请日：1994-01-18
申请人： Srinivas H. Swaroop , Raja R. Wusirika
发明人： Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： B01D53/72 , B01D53/04 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/32 , F01N13/02 , B01D53/56
CPC分类号： B01D53/945 , B01D53/0454 , B01D53/9481 , F01N13/009 , F01N13/0097 , F01N3/0814 , F01N3/0835 , F01N3/0871 , F01N2250/12 , F01N2370/24 , F01N2570/14 , F01N3/20 , F01N3/32 , Y02T10/22
摘要： A system and method are disclosed for converting exhaust gas which comprises NO.sub.x, CO, and hydrocarbons, to innocuous products. Exhaust gas is contacted in undiverted flow with a zeolite suitable for adsorption of hydrocarbons, and with a main catalyst suitable for conversion of NO.sub.x, CO, and hydrocarbons to innocuous products. Adsorption occurs when the temperature of the zeolite is suitable therefor. Conversion occurs when the temperature of the main catalyst is suitable therefor. The zeolite and main catalyst are connected directly to one another, that is, in-line, without by-pass valving. The zeolite can be Y zeolite, Beta, ZSM-5, and combinations thereof, and has a SiO.sub.2 to Al.sub.2 O.sub.3 mole ratio of no greater than about 200, and is ion exchanged with a metal which can be rare earth, chromium, and combinations thereof.
摘要翻译：公开了一种用于将包含NOx，CO和烃的废气转化为无害产品的系统和方法。废气以适合于吸附烃的沸石和适用于将NOx，CO和烃转化为无害产品的主催化剂以未流动的流动接触。当沸石的温度适合时，会发生吸附。当主催化剂的温度适合时，发生转化。沸石和主催化剂彼此直接连接，即直列连接，无旁通阀。沸石可以是Y沸石，β，ZSM-5及其组合，并且SiO 2与Al 2 O 3摩尔比不大于约200，并与可以是稀土，铬及其组合的金属进行离子交换。

32. 发明授权

US5244852A Molecular sieve-palladium-platinum catalyst on a substrate 失效
标题翻译：分子筛 - 钯 - 铂催化剂在基材上
公开(公告)号：US5244852A
公开(公告)日：1993-09-14
申请号：US857738
申请日：1992-03-26
申请人： Irwin M. Lachman , Mallanagouda D. Patil , Louis S. Socha, Jr. , Srinivas H. Swaroop , Raja R. Wusirika
发明人： Irwin M. Lachman , Mallanagouda D. Patil , Louis S. Socha, Jr. , Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： B01D53/94 , B01J29/068 , B01J37/02
CPC分类号： B01D53/945 , B01J29/068 , B01J37/0246 , Y02T10/22
摘要： A catalyst system for the oxidation of hydrocarbons, carbon monoxide, and the reduction of nitrogen oxides is provided. The unique synergy of the catalyst system, a combination of molecular sieves and noble metals, provides a system that partially or entirely replaces the need for rhodium as a catalyst in three way catalyst systems.
摘要翻译：提供了一种用于氧化烃，一氧化碳和还原氮氧化物的催化剂体系。催化剂体系（分子筛和贵金属的组合）的独特协同作用提供了一种系统，其部分或全部替代了在三元催化剂体系中作为催化剂的铑的需要。

33. 发明授权

US5234876A Thermally stable chromium-exchanged zeolites and method of making same 失效
标题翻译：热稳定的铬交换沸石及其制备方法
公开(公告)号：US5234876A
公开(公告)日：1993-08-10
申请号：US963602
申请日：1992-10-20
申请人： Srinivas H. Swaroop , Raja R. Wusirika
发明人： Srinivas H. Swaroop , Raja R. Wusirika
IPC分类号： B01J29/072 , B01J29/14
CPC分类号： B01J29/146 , B01J29/072
摘要： Thermally stable Cr-zeolites and Cu-Cr-zeolites, and methods of making same are disclosed. The zeolites have a SiO.sub.2 to Al.sub.2 O.sub.3 mole ratio of about 3 to about 200, and an initial alkali content of less than about about 0.5% by weight based on the alkali oxide. Chromium ions are exchanged into the zeolite to produce Cr-zeolite in which the Cr level is greater than about 0.5% by weight. Copper and chromium ions are provided exchanged on a zeolite to produce Cu-Cr-zeolite. The respective Cr-exchanged zeolites are heat-treated to produce the thermally stable zeolites wherein the BET surface area upon exposure to temperatures of up to about 1000.degree. C. is at least about 50% of the BET surface area of the respective thermally stable zeolites at about room temperature, prior to the exposure to temperatures of up to about 1000.degree. C.
摘要翻译：公开了热稳定的Cr-沸石和Cu-Cr-沸石及其制备方法。沸石的SiO 2与Al 2 O 3摩尔比为约3至约200，初始碱含量小于约0.5重量％，基于碱金属氧化物。将铬离子交换到沸石中以产生其中Cr含量大于约0.5重量％的Cr-沸石。在沸石上交换铜和铬离子以产生Cu-Cr-沸石。相应的Cr交换的沸石被热处理以产生热稳定的沸石，其中暴露于高达约1000℃的温度下的BET表面积为相应热稳定沸石的BET表面积的至少约50％在约室温下，暴露于高达约1000℃的温度之前。

34. 发明授权

US4871621A Method of encasing a structure in metal 失效
标题翻译：将结构包裹在金属中的方法
公开(公告)号：US4871621A
公开(公告)日：1989-10-03
申请号：US133303
申请日：1987-12-16
申请人： Rodney D. Bagley , Raja R. Wusirika
发明人： Rodney D. Bagley , Raja R. Wusirika
IPC分类号： C04B35/00 , B22F3/22 , B22F5/00 , B22F7/04 , B22F7/06
CPC分类号： B22F3/22 , B22F5/00 , B22F7/06 , Y10T428/12028 , Y10T428/12035 , Y10T428/12056 , Y10T428/12063 , Y10T428/12111 , Y10T428/12125 , Y10T428/12146
摘要： An improved method for encasing objects in metal is disclosed as are the novel encased objects so prepared. An object is wrapped with a sheet comprising sinterable particulate or powdered metal and an organic binder, and is the fired to volatilize the binder and to sinter the particulate metal into a unitary metal structure. In the preferred embodiment of this invention, the object to be encased is a green sinterable particulate object which undergoes sintering simultaneously with the particulate metal casing during the firing step.

35. 发明授权

US4778671A Preparation of unagglomerated metal oxide particles with uniform particle size 失效
标题翻译：制备粒度均匀的非团聚金属氧化物颗粒
公开(公告)号：US4778671A
公开(公告)日：1988-10-18
申请号：US884973
申请日：1986-07-14
申请人： Raja R. Wusirika
发明人： Raja R. Wusirika
IPC分类号： C01F5/06 , C01B13/14 , C01B13/18 , C01F11/02 , C01F11/04 , C01F17/00 , C01G23/04 , C01G25/02 , C01G27/02
CPC分类号： B82Y30/00 , C01B13/18 , C01F11/02 , C01F17/0043 , C01G25/02 , C01P2004/03 , C01P2004/50 , C01P2004/52 , C01P2004/62 , C01P2004/64
摘要： Disclosed is a method for producing substantially unagglomerated submicron metal oxide particles having uniform size distribution. The process is readily adaptable to the production of multicomponent metal oxide particles. The method comprises the steps of (1) providing a solution of a complex of an oxygen-containing metal salt and a chelating agent selected from the group consisting of ethylenediaminetetraacetic acid, hydroxy ethylenediaminetetraacetic acid, nitrilotriacetic acid, diethylenetriaminepentacetic acid, glycolic acid, lactic acid, citric acid, tartaric acid, succinic acid, alkali salts of the foregoing acids, and mixtures of these; (2) drying the solution by heating the solution under alkaline conditions for a time and at a temperature sufficient to remove substantially all the solvent from the solution and to leave a solid residue; (3) heating the solid residue for time and at a temperature sufficient to convert at least a substantial portion of the residue to substantially unagglomerated particles of the metal oxide having a mean diameter up to about one micron and a uniform particle size.
摘要翻译：公开了一种制备具有均匀尺寸分布的基本上未凝集的亚微米金属氧化物颗粒的方法。该方法容易适应多组分金属氧化物颗粒的生产。该方法包括以下步骤：（1）提供含氧金属盐和选自乙二胺四乙酸，羟基乙二胺四乙酸，次氮基三乙酸，二亚乙基三胺五乙酸，乙醇酸，乳酸的螯合剂的络合物的溶液，柠檬酸，酒石酸，琥珀酸，上述酸的碱金属盐，以及它们的混合物; （2）通过在碱性条件下将溶液加热一段时间并在足以从溶液中除去基本上所有溶剂并留下固体残余物的温度来干燥溶液; （3）将固体残余物加热至足以将至少大部分残余物转化成具有高达约1微米的平均直径和均匀粒度的金属氧化物的基本上未凝聚的颗粒的温度。

36. 发明授权

US4304602A MgO-Containing oxynitride glasses and glass-ceramics 失效
标题翻译：含MgO的氧氮化物玻璃和玻璃陶瓷
公开(公告)号：US4304602A
公开(公告)日：1981-12-08
申请号：US184765
申请日：1980-09-08
申请人： Raja R. Wusirika
发明人： Raja R. Wusirika
IPC分类号： C03C3/11 , C03C10/00 , C03C3/22 , C03C3/04
CPC分类号： C03C10/0045 , C03C10/0009 , C03C3/111
摘要： Thermally crystallizable silicon oxynitride glasses containing substantial quantities of MgO, thermally crystallizable to fine-grained glass-ceramic products comprising forsterite, clinohumite and/or a beta-silicon nitride solid solution as the predominant crystal phase, are described.
摘要翻译：描述了含有大量MgO的可热结晶的氧氮化硅玻璃，其可热结晶到包含镁橄榄石，白云母和/或β-氮化硅固溶体的细晶玻璃陶瓷产品作为主要结晶相。

37. 发明授权

US4186021A Oxynitride glass-ceramics 失效
标题翻译：氧氮化物玻璃陶瓷
公开(公告)号：US4186021A
公开(公告)日：1980-01-29
申请号：US966193
申请日：1978-12-04
申请人： Kenneth Chyung , Raja R. Wusirika
发明人： Kenneth Chyung , Raja R. Wusirika
IPC分类号： C03C3/11 , C03C10/00 , C03C3/22
CPC分类号： C03C10/0009 , C03C3/111
摘要： The instant invention is directed to the production of glass-ceramic articles from thermally crystallizable glass compositions containing, by weight, about 40-85% SiO.sub.2 and 2.5-17% N as basic constituents and utilizing such modifiers as the alkali metals, the elements of Groups IIA and IIB of the Periodic Table, boron, and aluminum to obtain practical glass-forming compositions. In general, at N contents greater than about 3.5%, the predominant crystal phase developed in situ will customarily comprise "nitrogen mullite", silicon oxynitride (Si.sub.2 ON.sub.2), and/or .beta.'-Si.sub.3 N.sub.4 solid solution. The crystal phase which has been denominated in the literature as "nitrogen-mullite" has a lath-like morphology and, hence, is useful in reinforcing the crystalline body. Where the predominant crystal phase comprises a silicate, it is believed that nitrogen is present in some manner within the silicate crystal structure. The parent thermally crystallizable glasses appear to be self-nucleating, i.e., the addition of a conventional nucleating agent such as TiO.sub.2, ZrO.sub.2, or SnO.sub.2 is not required to cause crystallization in situ. It is postulated that N may function as a nucleating agent.
摘要翻译：本发明涉及从可热结晶的玻璃组合物中制备玻璃陶瓷制品，该组合物含有约40-85％的SiO 2和2.5-17％的N作为碱性组分，并且利用这种改性剂作为碱金属，元素周期表IIA和IIB族，硼和铝，以获得实用的玻璃形成组合物。通常，在大于约3.5％的N含量下，原位显影的主要结晶相通常包含“氮莫来石”，氮氧化硅（Si 2 ON 2）和/或β'-Si 3 N 4固溶体。在文献中称为“氮 - 莫来石”的结晶相具有板条形态，因此可用于增强结晶体。当主要结晶相包含硅酸盐时，认为氮以某种方式存在于硅酸盐晶体结构内。母体热可结晶玻璃似乎是自成核的，即不需要加入常规的成核剂如TiO 2，ZrO 2或SnO 2以引起原位结晶。假设N可以作为成核剂起作用。

38. 发明授权

US4070198A SiO.sub.2 -Al.sub.2 O.sub.3 -N glass for production of oxynitride glass-ceramics 失效
标题翻译：用于生产氮氧化物玻璃陶瓷的SiO {HD 2 {B-Al {hd 2 {b O {HD 3 {B -N glass
公开(公告)号：US4070198A
公开(公告)日：1978-01-24
申请号：US735313
申请日：1976-10-26
申请人： Kenneth Chyung , Raja R. Wusirika
发明人： Kenneth Chyung , Raja R. Wusirika
IPC分类号： C03C3/11 , C03C10/00 , C03C3/04 , C03C3/22
CPC分类号： C03C10/0009 , C03C3/111
摘要： The instant invention is directed to the production of glass-ceramic articles from thermally crystallizable glass compositions containing, by weight, about 40-85% SiO.sub.2 and 2.5-17% N as basic constituents and utilizing such modifiers as the alkali metals, the elements of Groups IIA and IIB of the Periodic Table, boron, and aluminum to obtain practical glass-forming compositions. In general, at N contents greater than about 3.5%, the predominant crystal phase developed in situ will customarily comprise "nitrogen mullite", silicon oxynitride (Si.sub.2 ON.sub.2), and/or .beta.'-Si.sub.3 N.sub.4 solid solution. The crystal phase which has been denominated in the literature as "nitrogen-mullite" has a lath-like morphology and, hence, is useful in reinforcing the crystalline body. Where the predominant crystal phase comprises a silicate, it is believed that nitrogen is present in some manner within the silicate crystal structure. The parent thermally crystallizable glasses appear to be self-nucleating, i.e., the addition of a conventional nucleating agent such as TiO.sub.2, ZrO.sub.2, or SnO.sub.2 is not required to cause crystallization in situ. It is postulated that N may function as a nucleating agent.
摘要翻译：本发明涉及从可热结晶的玻璃组合物中制备玻璃陶瓷制品，该组合物含有约40-85％的SiO 2和2.5-17％的N作为碱性组分，并且利用这种改性剂作为碱金属，元素周期表IIA和IIB族，硼和铝，以获得实用的玻璃形成组合物。通常，在大于约3.5％的N含量下，原位显影的主要结晶相通常包含“氮莫来石”，氮氧化硅（Si 2 ON 2）和/或β'-Si 3 N 4固溶体。在文献中称为“氮 - 莫来石”的结晶相具有板条形态，因此可用于增强结晶体。当主要结晶相包含硅酸盐时，认为氮以某种方式存在于硅酸盐晶体结构内。母体热可结晶玻璃似乎是自成核的，即不需要加入常规的成核剂如TiO 2，ZrO 2或SnO 2以引起原位结晶。假设N可以作为成核剂起作用。

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