公开(公告)号：WO2013002791A1

公开(公告)日：2013-01-03

申请号：PCT/US2011/042420

申请日：2011-06-29

申请人： TDA RESEARCH, INC ,  SRINIVAS, Girish ,  GEBHARD, Steven, C.

发明人： SRINIVAS, Girish ,  GEBHARD, Steven, C.

IPC分类号： C01B17/02

CPC分类号： B01J37/0036 ,  B01J21/08 ,  B01J23/002 ,  B01J23/02 ,  B01J23/04 ,  B01J23/10 ,  B01J29/0308 ,  B01J35/1014 ,  B01J37/0201 ,  B01J37/08 ,  B01J37/088 ,  C01B17/0465 ,  C01B17/508 ,  B01J2523/00 ,  B01J2523/12 ,  B01J2523/22 ,  B01J2523/23

摘要： A method and catalysts for oxidizing H 2 S to elemental sulfur, SO 2 or both. The method includes contacting a gas stream containing H 2 S with oxygen and a catalyst comprising one or more alkali metals, one or more alkaline earth metals or a combination thereof supported on silica wherein the catalyst does not contain a transition metal. More specifically, the method and catalysts are useful for oxidizing H 2 S with O 2 in a gas stream containing H 2 S and hydrogen wherein the hydrogen present is not substantially oxidized.

摘要翻译： 将H2S氧化成元素硫，SO2或二者的方法和催化剂。 该方法包括使含有H 2 S的气流与含有一种或多种碱金属，一种或多种碱土金属或其二氧化硅上的组合的催化剂接触，其中催化剂不含过渡金属。 更具体地，该方法和催化剂可用于在含有H 2 S和氢的气流中用O 2氧化H 2 S，其中存在的氢基本上不被氧化。

公开(公告)号：WO2012057794A1

公开(公告)日：2012-05-03

申请号：PCT/US2010/054783

申请日：2010-10-29

申请人： TDA RESEARCH, INC. ,  SRINIVAS, Girish ,  GEBHARD, Steven, C.

发明人： SRINIVAS, Girish ,  GEBHARD, Steven, C.

IPC分类号： C01B17/00 ,  C01B17/79 ,  B01J23/22

CPC分类号： B01J27/055 ,  B01J23/682 ,  B01J35/006 ,  B01J37/0009 ,  B01J37/0201 ,  B01J37/024 ,  B01J37/0244 ,  B01J37/031 ,  C01B17/79

摘要： Improved catalysts for oxidation of sulfur dioxide which are alkali metal-promoted vanadium catalysts which are further promoted by gold. Improved methods employing such catalyst for oxidation of sulfur dioxide and for manufacture of sulfuric acid. Improved methods for multiple step oxidation of sulfur dioxide in which the last oxidation step is carried out employing improved catalysts of this invention at temperatures lower than 400°C.

摘要翻译： 用于氧化二氧化硫的改进的催化剂，其是由金进一步促进的碱金属促进的钒催化剂。 使用这种催化剂氧化二氧化硫和制造硫酸的改进方法。 在低于400℃的温度下，使用本发明改进的催化剂进行最后氧化步骤的二氧化硫的多步氧化的改进方法。

公开(公告)号：WO2017172512A1

公开(公告)日：2017-10-05

申请号：PCT/US2017/023959

申请日：2017-03-24

申请人： TDA RESEARCH, INC. ,  SRINIVAS, Girish

发明人： SRINIVAS, Girish ,  DIETZ, Steven

IPC分类号： B01D53/38 ,  B01D53/81

CPC分类号： B01J20/20 ,  B01D15/00 ,  B01J20/28057 ,  B01J20/28061 ,  B01J20/28064 ,  B01J20/28066 ,  B01J20/28069 ,  B01J20/28071 ,  B01J20/28083 ,  B01J20/305 ,  B01J20/3078 ,  B01J2220/4825 ,  C01B32/30 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/80 ,  C07C67/34 ,  C07C67/56 ,  C07C201/12 ,  C07C201/16 ,  C07D209/42

摘要： The present invention relates to a carbon sorbent the can selectively remove platinum-group metals and other heavy metals such as tin without co-removing organic synthesis products including pharmaceutical intermediates and finished Active Pharmaceutical Ingredients (APIs). The carbon sorbents of the present invention are made from low-cost, high purity starting materials and the resulting carbon sorbents are also very pure. The carbon sorbents possess a combination of certain nitrogen and phosphorous groups combined with mesoporosity (2 to 50 nm diameter pores) that proves the high metal adsorption.

摘要翻译： 本发明涉及一种碳吸附剂，其可以选择性地除去铂族金属和其他重金属如锡而不共同去除有机合成产物，包括药物中间体和成品活性药物成分（API）。 本发明的碳吸附剂由低成本，高纯度原料制成，并且所得碳吸附剂也非常纯。 碳吸附剂具有特定的氮和磷基团与中孔性（2至50nm直径的孔）相结合，证明高金属吸附。

公开(公告)号：WO2020018916A3

公开(公告)日：2020-01-23

申请号：PCT/US2019/042624

申请日：2019-07-19

申请人： TDA RESEARCH, INC.

发明人： ALFORD, John M. ,  EISENBERG, David P. ,  SRINIVAS, Girish

IPC分类号： G01J5/00 ,  G01K11/14 ,  G01K11/20 ,  G01K11/00

摘要： A thermally luminescent temperature sensor with a rare earth emitter having a first selective electromagnetic light energy emission band and a second selective electromagnetic light energy emission band in which the rare earth emitter converts thermal energy to electromagnetic light energy within the first and second selective energy emission bands. The sensor also has a selective optical detector in optical communication with the rare earth emitter, wherein the selective optical detector independently detects each the first and second selective electromagnetic light energy emission bands. Lastly, the thermally luminescent temperature sensor determines the temperature based on the electromagnetic light energy measured within the first and second selective energy emission bands relative to each other. Optionally additional emission bands may be used in the evaluation of the temperature.

公开(公告)号：WO2020018916A2

公开(公告)日：2020-01-23

申请号：PCT/US2019/042624

申请日：2019-07-19

申请人： TDA RESEARCH, INC.

发明人： ALFORD, John M. ,  EISENBERG, David P. ,  SRINIVAS, Girish

IPC分类号： G01K11/20

摘要： A thermally luminescent temperature sensor with a rare earth emitter having a first selective electromagnetic light energy emission band and a second selective electromagnetic light energy emission band in which the rare earth emitter converts thermal energy to electromagnetic light energy within the first and second selective energy emission bands. The sensor also has a selective optical detector in optical communication with the rare earth emitter, wherein the selective optical detector independently detects each the first and second selective electromagnetic light energy emission bands. Lastly, the thermally luminescent temperature sensor determines the temperature based on the electromagnetic light energy measured within the first and second selective energy emission bands relative to each other. Optionally additional emission bands may be used in the evaluation of the temperature.

公开(公告)号：WO2021262323A2

公开(公告)日：2021-12-30

申请号：PCT/US2021/030707

申请日：2021-05-04

申请人： TDA RESEARCH, INC.

发明人： NGUYEN, Vinh ,  DIETZ, Steven, Dean ,  SRINIVAS, Girish

IPC分类号： B01J23/42 ,  B01J35/00 ,  B01J35/10 ,  B01J23/00 ,  C01B32/00 ,  C25B1/04 ,  C25B11/031 ,  C25B11/054 ,  C25B11/065 ,  C25B11/081 ,  C25B15/00

摘要： A porous carbon-platinum electrocatalyst made from a carbon matrix-platinum composite, which has a carbon support and platinum is deposited into the pores of the carbon support. The platinum is at least 2 weight% of the carbon matrix-platinum composite. The carbon support has a nitrogen BET surface area of about 550 to 1800 m2/g; a packing density of at least 0.8 g/cc as determined at a compressive force of 500 kgf/cm2 on dry carbon powder; and an electrical conductivity of at least 10 S/cm at a compressive force of 500 kgf/cm2 on dry carbon powder. Also, an electrolyzer, comprising: the porous carbon-platinum electrocatalyst, wherein the electrolyzer has a Tafel slope of at most 40 mV / decade.

公开(公告)号：WO2003082455A3

公开(公告)日：2003-10-09

申请号：PCT/US2003/003342

申请日：2003-02-03

申请人： TDA RESEARCH, INC.

发明人： SRINIVAS, Girish ,  GEBHARD, Steven, Charles ,  KARPUK, Michael, E.

IPC分类号： B01J8/00

摘要： The invention describes catalysts and catalytic methods for the selective oxidation of hydrogen sulfide in a gas stream (401) containing one or more oxidizable components other than hydrogen sulfide to generate sulfur dioxide, elemental sulfur or both without substantial oxidation of the one or more oxidizable components other than hydrogen sulfide. The oxidizale components other than hydrogen sulfide may be hydrocarbon, sulfur-containing-hydrocarbon, oxygenated hydrocarbon, aromatic hydrocarbon, aliphatic hydrocarbon, hydrogen, carbon monoxide and mixture thereof. An exemplary catalyst may contain titania, an oxide of molybdenum, an oxide of niobium and an oxide of iron or an oxide of iron or an oxide of copper.