专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5281739A Process for manufacture of alkylhalosilanes 失效
标题翻译：烷基卤硅烷的制备方法
公开(公告)号：US5281739A
公开(公告)日：1994-01-25
申请号：US995733
申请日：1992-12-23
申请人： Roland L. Halm , Charles S. Kuivila , Regie H. Zapp
发明人： Roland L. Halm , Charles S. Kuivila , Regie H. Zapp
IPC分类号： B01J23/72 , B01J27/122 , B01J27/182 , C07B61/00 , C07F7/12 , C07F7/16
CPC分类号： C07F7/16
摘要： The present invention is an improvement of the Direct Process for the manufacture of alkylhalosilanes by the contact of powdered metallurgical grade silicon with an alkyl halide in the presence of a copper catalyst. The improvement reduces lot-to-lot variations in silicon conversion to desired dialkyldihalosilanes. The improvement comprises alloying 0.01 to nine weight percent copper with the silicon to be used in the process and separating slag. In a preferred embodiment of the present process, silicon-copper alloy is pulverized to a powder and mixed with additional copper and other catalysts to form a contact mass reactive with alkylhalides.
摘要翻译：本发明是通过在铜催化剂存在下与粉末冶金级硅与烷基卤的接触来改进制备烷基卤代硅烷的直接方法。这种改进降低了硅转化为所需的二烷基二卤代硅烷的批次间变化。该改进包括将0.01至9重量％的铜与用于该工艺中的硅并且分离炉渣进行合金化。在本方法的优选实施方案中，将硅铜合金粉碎成粉末并与另外的铜和其它催化剂混合以形成与烷基卤反应的接触物质。

2. 发明授权

US5051247A Silane products from reaction of silicon monoxide with organic halides 失效
标题翻译：一氧化硅与有机卤化物反应的硅烷产物
公开(公告)号：US5051247A
公开(公告)日：1991-09-24
申请号：US576908
申请日：1990-09-04
申请人： Gary N. Bokerman , John P. Cannady , Charles S. Kuivila
发明人： Gary N. Bokerman , John P. Cannady , Charles S. Kuivila
IPC分类号： C01B33/04 , C01B33/08 , C01B33/107 , C07B61/00 , C07F7/12
CPC分类号： C01B33/1071 , C07F7/123
摘要： The present invention is a process for preparing silanes from the reaction of solid silicon monoxide with organic halides. The solid silicon monoxide is reacted with the organic halide in the presence of a catalyst which can increase the conversion of silicon monoxide to silanes and partially select for the type of silanes produced. The process may employ an activation step in which the solid silicon monoxide is activated by heating in an inert atmosphere. Activation of the silicon monoxide can increase silicon conversion and alter the type of silanes produced.

3. 发明申请

US20100179327A1 Synthesis of Methylphenidate and Analogs Thereof 有权
标题翻译：哌甲酯及其类似物的合成
公开(公告)号：US20100179327A1
公开(公告)日：2010-07-15
申请号：US12652894
申请日：2010-01-06
申请人： Joseph P. Haar, JR. , Carl J. Schaefer , Charles S. Kuivila
发明人： Joseph P. Haar, JR. , Carl J. Schaefer , Charles S. Kuivila
IPC分类号： C07D211/22
CPC分类号： C07D211/60
摘要： A synthetic process for the preparation of amino acid esters such as methylphenidate and analogs thereof is disclosed. The process involves reacting an amino acid such as α-phenyl-α-(2-piperidinyl)acetic acid or an analog thereof with an alcohol such as methanol in the presence of an acid and a water sequestrant such as trimethyl orthoacetate. In some embodiments, the water sequestrant is added to the reaction mixture after an initial period of esterification and then the reaction is allowed to continue. The α-phenyl-α-(2-piperidinyl)acetic acid methyl ester or analog thereof is then isolated from the reaction mixture. In one variation of the process, the supernatant liquid may be recycled in subsequent runs to increase yield and product purity.
摘要翻译：公开了用于制备氨基酸酯如哌甲酯及其类似物的合成方法。该方法包括在酸和水多价螯合剂如原乙酸三甲酯存在下使氨基酸如α-苯基-α-（2-哌啶基）乙酸或其类似物与醇如甲醇反应。在一些实施方案中，在酯化的初始阶段之后，将水螯合剂加入到反应混合物中，然后使反应继续进行。然后从反应混合物中分离α-苯基-α-（2-哌啶基）乙酸甲酯或其类似物。在该方法的一个变化方案中，上清液可以在随后的运行中再循环以提高产率和产物纯度。

4. 发明授权

US5051248A Silane products from reaction of silicon monoxide with hydrogen halides 失效
标题翻译：一氧化硅与卤化氢反应产生的硅烷产物
公开(公告)号：US5051248A
公开(公告)日：1991-09-24
申请号：US567576
申请日：1990-08-15
申请人： Gary N. Bokerman , John P. Cannady , Charles S. Kuivila
发明人： Gary N. Bokerman , John P. Cannady , Charles S. Kuivila
IPC分类号： C01B33/04 , C01B33/107
CPC分类号： C01B33/10742 , C01B33/043 , C01B33/107
摘要： The present invention is processes for preparing silanes from the reaction of silicon monoxide with hydrogen halides. In a first embodiment of the instant invention, silicon monoxide is reacted with a hydrogen halide to produce silanes and halosilanes. In a second embodiment of the instant invention, the silicon monoxide is activated by heating in an inert atmosphere prior to contact with the hydrogen halide. In a third embodiment of the instant invention, a catalyst is employed which enhances conversion of silicon monoxide to silanes and modifies process selectivity for silane products. The catalyzed process can be run with activated or non-activated silicon monoxide.

5. 发明授权

US4560448A Aluminum wettable materials for aluminum production 失效
标题翻译：用于铝生产的铝可湿性材料
公开(公告)号：US4560448A
公开(公告)日：1985-12-24
申请号：US505363
申请日：1983-06-17
申请人： Ajit Y. Sane , Douglas J. Wheeler , Charles S. Kuivila
发明人： Ajit Y. Sane , Douglas J. Wheeler , Charles S. Kuivila
IPC分类号： C25C3/08 , C25C3/16 , C25C3/06 , B05D3/00 , C25C7/00
CPC分类号： C25C3/08 , C25C3/16
摘要： A method for rendering an aluminum electrowinning cell component fabricated from an aluminum nonwettable material wettable by molten aluminum, and therefore utilizable within the cell. Under the method, the component is coated with titanium and boron, and while the component is immersed in molten aluminum within the cell, the molten aluminum is maintained near saturation with boron and titanium.
摘要翻译：一种用于使由铝熔融的铝不可润湿材料制成的铝电解电池元件的方法，因此可以在电池内使用。在该方法下，组分用钛和硼涂覆，并且当组分浸入电池内的熔融铝中时，熔融铝与硼和钛保持接近饱和。

6. 发明授权

US4544457A Dimensionally stable drained aluminum electrowinning cathode method and apparatus 失效
标题翻译：尺寸稳定的排水铝电解阴极法和设备
公开(公告)号：US4544457A
公开(公告)日：1985-10-01
申请号：US505229
申请日：1983-06-17
申请人： Ajit Y. Sane , Douglas J. Wheeler , Charles S. Kuivila
发明人： Ajit Y. Sane , Douglas J. Wheeler , Charles S. Kuivila
IPC分类号： C25C3/08 , C25C3/06 , C25B11/03 , C25B11/04
CPC分类号： C25C3/08
摘要： A method and apparatus for making a drained aluminum electrowinning cathode dimensionally stable. A thin, 1/2 to 10 millimeter coating of substantially stagnant molten aluminum is maintained upon the cathode surface by an openly porous sheath or membrane closely conforming to contours of the electrowinning cathode. The sheath or membrane is made from a material substantially resistant to corrosives present in the aluminum electrowinning; it may be only slightly aluminum wettable, but should be relatively electrically nonconductive.
摘要翻译：一种使排水的电解铝电解阴极尺寸稳定的方法和装置。基本上停滞的熔融铝的薄的1/2至10毫米的涂层通过与电解提纯阴极的轮廓紧密一致的开孔多孔的护套或膜保持在阴极表面上。护套或膜由基本上耐铝电解提取物中存在的腐蚀物质的材料制成; 它可能只有轻微的铝可湿性，但应该是相对不导电的。

7. 发明授权

US08283472B2 Synthesis of methylphenidate and analogs thereof 有权
标题翻译：哌甲酯及其类似物的合成
公开(公告)号：US08283472B2
公开(公告)日：2012-10-09
申请号：US12652894
申请日：2010-01-06
申请人： Joseph P. Haar, Jr. , Carl J. Schaefer , Charles S. Kuivila
发明人： Joseph P. Haar, Jr. , Carl J. Schaefer , Charles S. Kuivila
IPC分类号： C07D211/34
CPC分类号： C07D211/60
摘要： A synthetic process for the preparation of amino acid esters such as methylphenidate and analogs thereof is disclosed. The process involves reacting an amino acid such as α-phenyl-α-(2-piperidinyl)acetic acid or an analog thereof with an alcohol such as methanol in the presence of an acid and a water sequestrant such as trimethyl orthoacetate. In some embodiments, the water sequestrant is added to the reaction mixture after an initial period of esterification and then the reaction is allowed to continue. The α-phenyl-α-(2-piperidinyl)acetic acid methyl ester or analog thereof is then isolated from the reaction mixture. In one variation of the process, the supernatant liquid may be recycled in subsequent runs to increase yield and product purity.
摘要翻译：公开了用于制备氨基酸酯如哌甲酯及其类似物的合成方法。该方法包括在酸和水多价螯合剂如原乙酸三甲酯存在下使氨基酸如α-苯基-α-（2-哌啶基）乙酸或其类似物与醇如甲醇反应。在一些实施方案中，在酯化的初始阶段之后，将水螯合剂加入到反应混合物中，然后使反应继续进行。然后从反应混合物中分离α-苯基-α-（2-哌啶基）乙酸甲酯或其类似物。在该方法的一个变化方案中，上清液可以在随后的运行中再循环以提高产率和产物纯度。

8. 发明授权

US5596119A Method for controlling the direct process product distribution 失效
标题翻译：控制直接过程产品分配的方法
公开(公告)号：US5596119A
公开(公告)日：1997-01-21
申请号：US567652
申请日：1995-12-05
申请人： Roland L. Halm , Charles S. Kuivila , Oliver K. Wilding
发明人： Roland L. Halm , Charles S. Kuivila , Oliver K. Wilding
IPC分类号： B01J27/18 , C07B61/00 , C07F7/12 , C07F7/16
CPC分类号： C07F7/16
摘要： A method for controlling the direct process to vary the concentrations of trialkylhalosilanes and alkyltrihalosilanes in the product. The method comprises contacting an alkyl chloride with silicon metalloid in the presence of a catalytic amount of a catalyst comprising 0.5 to 10 weight percent copper, 5 to 200 ppm tin, 25 to 2,500 ppm phosphorous, and greater than zero to less than 50 ppm zinc, where the concentration of each of the catalyst components is based on the weight of the silicon, at a temperature within a range of about 250.degree. C. to 400.degree. C. The present inventors have found that by controlling the zinc concentration the concentrations of trialkylhalosilanes and alkyltrihalosilanes in the product can be varied.
摘要翻译：用于控制直接过程以改变产物中三烷基卤硅烷和烷基三卤代硅烷的浓度的方法。该方法包括在催化量的催化剂存在下使烷基氯与硅金属接触，所述催化剂含有0.5至10重量百分比的铜，5至200ppm的锡，25至2,500ppm的磷，以及大于0至小于50ppm的锌其中每个催化剂组分的浓度基于硅的重量，在约250℃至400℃的温度范围内。本发明人已经发现，通过控制锌浓度，产物中的三烷基卤硅烷和烷基三卤代硅烷可以变化。

9. 发明授权

US5427952A Analytical method for nonmetallic contaminates in silicon 失效
标题翻译：硅中非金属污染物的分析方法
公开(公告)号：US5427952A
公开(公告)日：1995-06-27
申请号：US165567
申请日：1993-12-13
申请人： Richard D. Daugherty , Roland L. Halm , Charles S. Kuivila
发明人： Richard D. Daugherty , Roland L. Halm , Charles S. Kuivila
IPC分类号： G01N31/00 , G01N33/20 , C01B33/037
CPC分类号： G01N33/20
摘要： The present invention is a method for analyzing silicon for nonmetallic contaminants. The method comprises: (A) forming an alloy comprising silicon and a metal which promotes separation of nonmetallic contaminants present in the alloy, (B) separating the nonmetallic contaminants from the alloy, and (C) analyzing the separated nonmetallic contaminants for chemical content. The present invention is particularly useful for analyzing metallurgical grade silicon intended for use in the direct process for the production of organohalosilanes for the presence of oxides and carbides of calcium, aluminum, and silicon.
摘要翻译：本发明是用于分析非金属污染物的硅的方法。该方法包括：（A）形成包含硅和金属的合金，其促进合金中存在的非金属污染物的分离，（B）从合金中分离非金属污染物，（C）分析分离的非金属污染物的化学成分。本发明特别可用于分析用于生产有机卤代硅烷以用于钙，铝和硅的氧化物和碳化物的存在的冶金级硅。

10. 发明授权

US5120520A Silane products from reaction of solid silicon monoxide with aromatic halides 失效
标题翻译：由固体一氧化硅与芳族卤化物反应的硅烷产物
公开(公告)号：US5120520A
公开(公告)日：1992-06-09
申请号：US700277
申请日：1991-05-15
申请人： Gary N. Bokerman , John P. Cannady , Charles S. Kuivila
发明人： Gary N. Bokerman , John P. Cannady , Charles S. Kuivila
IPC分类号： B01J21/02 , B01J23/14 , B01J23/80 , B01J27/122 , B01J27/138 , C01B33/04 , C01B33/08 , C01B33/107 , C07B61/00 , C07F7/12
CPC分类号： C07F7/122 , C01B33/1071
摘要： The described invention is a process for preparing silanes from the reaction of solid silicon monoxide with aromatic halides. The solid silicon monoxide is reacted with the aromatic halide in the presence of a catalyst which can increase the conversion of silicon monoxide to silanes, and partially select for arylsilane products. The process may employ an activation step in which the solid silicon monoxide is activated by heating in an inert atmosphere. Activation of the solid silicon monoxide can increase silicon conversion and increase selectivity for arylsilane products.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式