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公开(公告)号：EP2558199A2
公开(公告)日：2013-02-20
申请号：EP11769238.4
申请日：2011-03-04
CPC分类号： B01J21/063 , B01J23/42 , B01J23/44 , B01J23/50 , B01J23/52 , B01J35/002 , B01J35/006 , B01J37/031 , B01J37/035 , B01J37/10 , B01J37/16
摘要： A process for making a catalyst having precious metal nanoparticles deposited on a support includes first providing an aqueous dispersion of support particles. A pre-treatment slurry is prepared by mixing the aqueous dispersion of support particles with a water-soluble precious metal precursor and a reducing agent. The pre-treatment slurry is hydrothermally treated at a temperature in the range of from about 40°C to about 220°C for a time sufficient to deposit precious metal nanoparticles on the surface of the support particles, the precious metal nanoparticles having an average particle size less about 50 nm.
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2.发明公开SILICA-STABILIZED ULTRAFINE ANATASE TITANIA, VANADIA CATALYSTS, AND METHODS OF PRODUCTION THEREOF 审中-公开硅稳定化ULTRA FINE锐TITANE，钒催化剂及其制造方法
公开(公告)号：EP2459310A2
公开(公告)日：2012-06-06
申请号：EP10803976.9
申请日：2010-09-07
发明人： CHAPMAN, David, M.
CPC分类号： B01J21/08 , B01D53/9418 , B01D53/9477 , B01D2251/2067 , B01D2255/20707 , B01D2255/20723 , B01D2255/20776 , B01D2255/30 , B01D2258/012 , B01J21/063 , B01J23/22 , B01J23/30 , B01J35/0013 , B01J35/006 , B01J35/1014 , B01J35/1038 , B01J37/0209 , B01J37/035 , B01J37/04 , B01J37/08
摘要： The invention is directed to compositions and processes for the production of silica-stabilized ultrafine anatase titanias and which may further comprise tungsten and vanadia. The surface stabilization may be by treatment of the TiO2 particles with a low molecular weight and/or small nanoparticle form of silica such as, in preferred embodiments, a tetra(alkyl)ammonium silicate or silicic acid, which serves to efficiently maintain the anatase phase and prevent crystal growth under severe thermal and hydrothermal conditions, even in the presence of vanadia. The vanadia catalysts produced from the novel titanias have equal or improved catalytic activity for selective catalytic reduction of NOx compared to conventional vanadia supported silica-titania based catalysts. The invention is further directed to diesel emission catalytic devices comprising the novel titania-based catalyst compositions.
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3.发明授权
公开(公告)号：EP1814954B1
公开(公告)日：2012-03-14
申请号：EP05851988.5
申请日：2005-11-21
CPC分类号： C09C3/006 , C01P2006/22 , C01P2006/60 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C09C1/3661 , C09C1/3669 , C09C1/3692 , C09C3/08
摘要： In various embodiments, a pigment composition is provided comprising a base particle and a dispersing agent, the dispersing agent comprising a salt and/or ester of: (i) an amine, alcohol, and/or alkanol amine and (ii) a polyprotic acid, wherein the mole ratio of the amine, alcohol, and/or alkanol amine to the polyprotic acid is greater than 3:1. In various embodiments, the pigments have improved stability, hiding power, tint strength and/or gloss.
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公开(公告)号：EP1711259B1
公开(公告)日：2010-03-17
申请号：EP05726472.3
申请日：2005-01-21
发明人： FU, Guoyi , MONK, BillieJo , LEHAUT, Corinne
IPC分类号： B01J21/06
CPC分类号： B01J21/066 , B01J21/06 , B01J27/188 , B01J35/023 , B82Y30/00 , C01G25/00 , C01G25/02 , C01P2002/72 , C01P2004/64 , C01P2006/12 , C01P2006/16 , C01P2006/17 , Y10S977/773 , Y10S977/775 , Y10S977/811
摘要： The present invention is directed to producing nano-structured particles that have high specific surface-areas and high thermal stability. By aging nanoparticle precursors, and processing them under appropriate conditions, one is able to generate nano-structured particles that may be used in catalysts. By adding a stabilizing agent one is able to further improve the high thermal stability. These nano-structured particle products are particularly advantageous in applications as catalysts or catalyst supports that operate at high temperatures.
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公开(公告)号：EP2139814A1
公开(公告)日：2010-01-06
申请号：EP08728434.5
申请日：2008-01-29
IPC分类号： C01G23/047
CPC分类号： C01G23/047 , C01P2006/80 , C22B1/02 , C22B34/1209 , C22B34/1213 , C22B34/1245
摘要： This invention relates to a process for beneficiating a titaniferous ore. The process comprises calcining the titaniferous ore, at least one alkali or alkaline earth metal salt, and at least one alumina-containing material in the presence of oxygen to form a calcined ore mixture, then leaching the calcined ore mixture with a solution comprising ammonium. sodium or magnesium chloride in the presence of oxygen to form a leached ore mixture, and contacting the leached ore with an acid to form a beneficiated ore.
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6.发明授权
公开(公告)号：EP1499752B1
公开(公告)日：2009-07-01
申请号：EP03733883.7
申请日：2003-04-15
发明人： EARL, Smith , ROBINSON, Michael , TALATI, Kirit
IPC分类号： C22B34/12 , C22B3/08 , C22B1/00 , C01G23/047
CPC分类号： C22B34/125 , C01G23/0532 , C22B19/20 , C22B34/1213 , Y02P10/212
摘要： Processes for the efficient and economical beneficiation of titaniferous ore are provided. A unique process for beneficiating ore comprising pretreatment of the ore by oxidation and reduction, followed by acid leaching with sulfuric acid has been developed. The acid used in this process may be recycled, which will thereby increase the efficiency of the process. Preferably the ore treated according to the present invention is ilmenite ore.
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公开(公告)号：EP2069439A1
公开(公告)日：2009-06-17
申请号：EP07813971.4
申请日：2007-08-10
发明人： FU, Guoyi , AUGUSTINE, Steven, M.
IPC分类号： C09C1/42
CPC分类号： C09C1/3661 , B01D53/8628 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/1026 , B01D2255/104 , B01D2255/106 , B01D2255/2065 , B01D2255/207 , B01D2255/20707 , B01D2255/20715 , B01D2255/20723 , B01D2255/2073 , B01D2255/20738 , B01D2255/20753 , B01D2255/20761 , B01D2255/20769 , B01D2255/20776 , B01D2255/20784 , B01D2255/2092 , B01D2255/2094 , B01D2255/30 , B01D2255/9202 , B01D2255/9207 , B01J21/063 , B01J23/30 , B01J35/0013 , B01J35/002 , B01J35/023 , B01J35/1014 , B01J35/1019 , B01J37/031 , B01J37/035 , B01J37/10 , B82Y30/00 , C01P2002/30 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C09C1/0084
摘要： A nanocomposite particle, its use as a catalyst, and a method of making it are disclosed. The nanocomposite particle comprises titanium dioxide nanoparticles, metal oxide nanoparticles, and a surface stabilizer. The metal oxide nanoparticles are formed hydrothermally in the presence of the titanium dioxide nanoparticles. The nanocomposite particle is an effective catalyst support, particularly for DeNOx catalyst applications.
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公开(公告)号：EP0873377B1
公开(公告)日：2004-09-01
申请号：EP96940882.2
申请日：1996-11-27
CPC分类号： C09C3/12 , C01P2002/89 , C01P2004/60 , C01P2004/84 , C01P2006/90 , C09C1/3684 , Y10T428/2995
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公开(公告)号：EP1373413A1
公开(公告)日：2004-01-02
申请号：EP02718975.2
申请日：2002-02-14
CPC分类号： C08K9/02 , C01P2004/51 , C01P2004/62 , C01P2004/82 , C01P2006/60 , C01P2006/90 , C08K9/04 , C09C1/3623 , C09C1/3661 , C09C1/3692
摘要： The present invention relates to an improved titanium dioxide pigment that incorporate a dense silica coating and its process for manufacture. The pigment is preferably produced from a titania base from the chloride process in which the manufacturing process comprises the following steps in the order stated: (a) partial or substantial removal of salt from the oxidizer discharge; (b) addition of a dispersant; (c) milling to produce a highly dispersed, highly deagglomerated slurry, followed by dense silica surface treatment. Pigments prepared using the inventive process exhibit optics equivalent to high gloss, high opacity pigments and maintain the durability of the more conventional dense silica treated pigments.
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10.发明公开METHODS OF PRODUCING SUBSTANTIALLY ANATASE-FREE TITANIUM DIOXIDE WITH SILICON HALIDE ADDITION 审中-公开用添加卤化硅制备大量无酸碱的二氧化钛的方法
公开(公告)号：EP1362009A2
公开(公告)日：2003-11-19
申请号：EP01993359.7
申请日：2001-11-13
发明人： AKHTAR, Kamal, M. , ELLER, Eric, J. , FITZGERALD, Nancy, L. , JAMISON, Matthew, E. , SNIDER, John, R.
CPC分类号： C09C1/3653 , C01G23/07 , C01P2004/62
摘要： The present invention provides methods of producing substantially anatase-free titanium dioxide by mixing titanium tetrachloride with a silicon compound to form an admixture, and introducing the admixture and oxygen into a reaction zone to produce the substantially anatase-free titanium dioxide. The reaction zone has a pressure of greater than 55 psig.
摘要翻译： 本发明提供了通过将四氯化钛与硅化合物混合形成混合物并将混合物和氧气引入反应区以生产基本上不含锐钛矿的二氧化钛来生产基本上不含锐钛矿的二氧化钛的方法。 反应区具有大于55psig的压力。
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