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公开(公告)号：EP2074236A2
公开(公告)日：2009-07-01
申请号：EP07804280.1
申请日：2007-09-12
IPC分类号： C22C23/06
CPC分类号： C22C23/06
摘要： This invention relates to gadolinium-containing magnesium alloys, particularly those which possess high strength combined with corrosion resistance, and an optimised balance of strength and ductility. The described alloys consist of 2.0 to 5.0, preferably 2.3 to 4.6, at% in total of gadolinium and at least one of soluble heavy lanthanides and yttrium, wherein the ratio of the aggregate amount of soluble heavy lanthanides and yttrium to the amount of gadolinium is between 1.25:1 and 1.75:1, and preferably approximately 1.5:1, from 0 up to 0.3 at% of zirconium, preferably at least 0.03 at%, optionally with zinc, wherein when zinc is present the amount of zinc is such that the ratio of the weight of zinc to the weight of zirconium is preferably less than 2:1, and more preferably less than 0.75:1, all other lanthanides, viz. lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium and ytterbium in an aggregate amount of less than at 0.2 at%, and preferably less than 0.1 at%, the balance being magnesium, with any other element being present in an amount of no more than 0.2 at%, and preferably no more than 0.1 at%, and more preferably being present only as an incidental impurity.
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公开(公告)号：EP2018220A1
公开(公告)日：2009-01-28
申请号：EP07732859.9
申请日：2007-05-17
发明人： BRADSHAW, Heather , NORMAN, Colin
CPC分类号： B01J20/06 , B01D2255/206 , B01D2255/407 , B01D2255/908 , B01J23/002 , B01J23/14 , B01J2523/00 , C01G25/00 , C01G25/006 , C01P2006/12 , B01J2523/3706 , B01J2523/3712 , B01J2523/3725 , B01J2523/48 , B01J2523/43
摘要： The present invention relates to oxygen storage components for catalytic converters for automobile exhaust systems, particularly for those with petrol-driven engines. In accordance with the present invention there is provided a ceria containing mixed oxide suitable as an oxygen storage material having a ceria content in the range 10 to 80% by weight and at least one metal oxide in an amount of less than 0.5% by weight, wherein the metal is selected from the first row transition elements and the group IVB elements of the periodic table. The inventions also provides an oxygen storage material for catalytic converters for automobile exhaust systems comprising an oxide of the present invention.
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3.发明公开THERMALLY STABLE DOPED AND UNDOPED POROUS ALUMINUM OXIDES AND NANOCOMPOSITE CE02-ZRO2 AND AL203 CONTAINING MIXED OXIDES 审中-公开热稳定的掺杂和未掺杂多孔氧化铝和CE02-ZrO2和含AL203 NANOKOMPOSITMISCHOXIDE
公开(公告)号：EP1841693A1
公开(公告)日：2007-10-10
申请号：EP05823113.5
申请日：2005-12-30
发明人： DI MONTE, Roberta Dipartimento di Scienze , KASPAR, Jan Dipartimento di Scienze Chimiche , DESINAN, Stefano Dipartimento di Scienze Chimiche
CPC分类号： B82Y30/00 , B01J23/10 , B01J37/02 , C01F7/02 , C01F7/168 , C01F7/34 , C01P2002/52 , C01P2002/54 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/13 , C01P2006/14
摘要： The present invention relates to doped or undoped aluminas having after calcination at 1200 °C for 5-24 hours a pore volume ≥ 0.5 ml/g and a BET surface area greater than 35 m2/g. The invention also relates to a method for preparing these aluminas comprising the steps of: a. preparing an aqueous solution of an aluminium salt with optional co-dopants, b. treating the aqueous solution with hydrogen peroxide, c. precipitating the alumina using a base, and d. filtering, drying and calcining the alumina.
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公开(公告)号：EP1641954B1
公开(公告)日：2007-01-24
申请号：EP04768816.3
申请日：2004-10-08
发明人： LYON, Paul , KING, John , KARIMZADEH, Hossein , SYED, Ismet
IPC分类号： C22C23/06
摘要： This invention relates to magnesium-based alloys particularly suitable for casting applications where good mechanical properties at room and at elevated temperatures are required. The alloys contain: 2 to 4.5 % by weight of neodymium; 0.2 to 7.0 % of at least one rare earth metal of atomic No. 62 to 71; up to 1.3 % by weight of zinc; and 0.2 to 0.7 % by weight of zirconium; optionally with one or more other minor component. They are resistant to corrosion, show good age-hardening behaviour, and are also suitable for extrusion and wrought alloy applications.
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公开(公告)号：EP1984301B1
公开(公告)日：2010-06-30
申请号：EP07704985.6
申请日：2007-01-24
CPC分类号： C01G25/02 , B01J21/066 , B01J35/1019 , B01J35/1042 , B01J35/1061 , B01J35/1085 , C01P2002/72 , C01P2006/12 , C01P2006/13 , C01P2006/14 , C01P2006/16 , Y10T428/249953
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6.发明公开COMPOSITE OXIDES OR HYDOXIDES COMPRISING ALUMINA, ZIRCONIA AND OPTIONALLY CERIA AND/OR RARE EARTH OXIDES FOR AUTOMOTIVE CATALYST APPLICATIONS AND METHOD OF MANUFACTURING 有权混合氧化物或氢氧化物含有氧化铝，氧化锆和氧化铈IF和/或CAR稀土催化剂应用和方法
公开(公告)号：EP1838621A2
公开(公告)日：2007-10-03
申请号：EP05823116.8
申请日：2005-12-30
发明人： DARAB, John, G.
CPC分类号： C01G25/00 , B01J23/002 , B01J23/10 , B01J2523/00 , C01G25/006 , C01P2006/12 , C01P2006/13 , B01J2523/31 , B01J2523/48 , B01J2523/3712 , B01J2523/3718 , B01J2523/3706 , B01J2523/12 , B01J2523/62
摘要： An improved method for the formation of composite hydroxides or oxides comprising, on an oxide basis, A1203 and Zr02, and optionally Ce02, La203, Nd203, Pr6011, Sm203, Y203, and other rare earth oxides, comprising the steps of preparing an aqueous metal salt solution and forming a hydroxide precipitate slurry by combining the aqueous metal salt solution with an aqueous solution of a caustic alkali at a pH greater than 8.5 to precipitate out all the metal species. The variation in pH during the precipitation reaction is +/- 1. The invention also relates to composites formed by this method comprising 20-70wt% A1203, 10-77wt% Zr02, 0-34wt% Ce02 and 0-22wt% REOs other than Ce02, and to composites per se comprising, on an oxide basis, 42-70wt% A1203, 10-48wt% Zr02, 2-34wt% Ce02 and 0-9wt% REOs other than Ce02 and having the following properties after heating to 850 °C over four hours and holding at 850 °C for four hours then allowing to cool to ambient temperature: - a surface area after aging at 950 °C for 2 hours equal to or greater than 60 m2/g, and - a surface area after aging at 1100 °C for 2 hours equal to or greater than 30 m2/g.
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公开(公告)号：EP1641954A1
公开(公告)日：2006-04-05
申请号：EP04768816.3
申请日：2004-10-08
发明人： LYON, Paul , KING, John , KARIMZADEH, Hossein , SYED, Ismet
IPC分类号： C22C23/06
摘要： This invention relates to magnesium-based alloys particularly suitable for casting applications where good mechanical properties at room and at elevated temperatures are required. The alloys contain: 2 to 4.5 % by weight of neodymium; 0.2 to 7.0 % of at least one rare earth metal of atomic No. 62 to 71; up to 1.3 % by weight of zinc; and 0.2 to 0.7 % by weight of zirconium; optionally with one or more other minor component. They are resistant to corrosion, show good age-hardening behaviour, and are also suitable for extrusion and wrought alloy applications.
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8.发明授权
公开(公告)号：EP2244983B8
公开(公告)日：2013-05-01
申请号：EP09701344.5
申请日：2009-01-06
发明人： LARCHER, Olivier , ROHART, Emmanuel , VERDIER, Stephan , CRINIERE, Guillaume , HARRIS, Deborah , BRADSHAW, Heather
CPC分类号： C01G41/02 , B01D53/9418 , B01D53/944 , B01D2251/2062 , B01D2251/2067 , B01D2255/2061 , B01D2255/20715 , B01D2255/20776 , B01D2255/9207 , B01D2258/012 , B01J23/002 , B01J23/30 , B01J35/1009 , B01J35/1014 , B01J37/031 , B01J2523/00 , C01F17/0043 , C01G25/02 , C01P2006/12 , C01P2006/13 , C10J3/482 , C10J2300/16 , C10J2300/1618 , C10J2300/1671 , Y02A50/2325 , Y02P20/52 , Y02T10/24 , B01J2523/36 , B01J2523/48 , B01J2523/69
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9.发明公开
公开(公告)号：EP2244983A1
公开(公告)日：2010-11-03
申请号：EP09701344.5
申请日：2009-01-06
发明人： LARCHER, Olivier , ROHART, Emmanuel , VERDIER, Stephan , CRINIERE, Guillaume , HARRIS, Deborah , BRADSHAW, Heather
CPC分类号： C01G41/02 , B01D53/9418 , B01D53/944 , B01D2251/2062 , B01D2251/2067 , B01D2255/2061 , B01D2255/20715 , B01D2255/20776 , B01D2255/9207 , B01D2258/012 , B01J23/002 , B01J23/30 , B01J35/1009 , B01J35/1014 , B01J37/031 , B01J2523/00 , C01F17/0043 , C01G25/02 , C01P2006/12 , C01P2006/13 , C10J3/482 , C10J2300/16 , C10J2300/1618 , C10J2300/1671 , Y02A50/2325 , Y02P20/52 , Y02T10/24 , B01J2523/36 , B01J2523/48 , B01J2523/69
摘要： The composition of the invention is based on zirconium oxide, which comprises 1 to 20% yttrium oxide, 1 to 30% tungsten oxide and the balance zirconium oxide. This composition may have a specific surface area of at least 40 m2/g after calcination at 700oC for 4 hours and an acidity measured by the methylbutynol test of at least 90%. The composition may be used as a catalyst or catalyst support, especially for the treatment of motor vehicle exhaust gases.
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公开(公告)号：EP1625097A1
公开(公告)日：2006-02-15
申请号：EP04730310.2
申请日：2004-04-29
发明人： TAKAO, Yasuhide , NORMAN, Colin Mel Chemicals , EDWARDS, Gavin Mel Chemicals , CHISEM, Ian Mel Chemicals , JONES, Clare
CPC分类号： C04B35/486 , B01J21/066 , B01J23/10 , B01J35/1014 , B01J37/031 , C01G25/00 , C01G25/02 , C01P2006/12 , C01P2006/13 , C04B35/62655 , C04B2235/02 , C04B2235/3224 , C04B2235/3225 , C04B2235/5409 , C04B2235/604 , C04B2235/726 , C04B2235/77
摘要： This invention relates to a process for preparing zirconium oxide, in its various forms, including zirconium-based mixed oxides. There is described a process for preparing a zirconium oxide in the absence of a cerium salt which comprises precipitating a zirconium hydroxide from an aqueous solution of a zirconium salt by reaction with an alkali in the presence of a controlled amount of sulphate anions at a temperature not greater than 50°C and then calcining the hydroxide to form an oxide, wherein the oxide thus formed is essentially sulphate free. Catalysts and ceramics can be produced from the product oxides having improved thermal stability and improved sinterability, respectively. A particular use of the product oxide is as a promoter or catalyst support in automobile exhaust systems.
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