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公开(公告)号:EP3224200B1
公开(公告)日:2019-05-01
申请号:EP15794169.1
申请日:2015-11-12
申请人: Evonik Degussa GmbH
发明人: KATUSIC, Stipan , KRESS, Peter , ALFF, Harald , WIEGAND, Armin
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公开(公告)号:EP3408227A1
公开(公告)日:2018-12-05
申请号:EP17700861.2
申请日:2017-01-23
申请人: Evonik Degussa GmbH
IPC分类号: C01G41/02
CPC分类号: C01G41/02
摘要: Process for producing a tungsten oxide powder or a tungsten mixed oxide powder of general formula MxWO3, wherein M = Na, K, Rb, Li and/or Cs, 0.1 ≤ x ≤ 0.5, comprising the consecutive steps of: a) providing a solution containing in each case at least one tungsten compound and optionally at least one M-containing compound in a concentration corresponding to the stoichiometry MxWO3, b) atomizing the solution to form an aerosol into a reaction space, c) reacting the aerosol in the reaction space with a hydrogen/oxygen flame for which 1
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公开(公告)号:EP3224200A1
公开(公告)日:2017-10-04
申请号:EP15794169.1
申请日:2015-11-12
申请人: Evonik Degussa GmbH
发明人: KATUSIC, Stipan , KRESS, Peter , ALFF, Harald , WIEGAND, Armin
CPC分类号: C01B13/34 , C01F7/308 , C01F17/0043 , C01G1/02 , C01G25/006 , C01G25/02 , C01G45/02 , C01G51/04 , C01G53/04 , C01P2004/51 , C01P2004/62 , C01P2004/64 , C01P2006/12
摘要: The invention relates to a method for producing a metal oxide powder by means of spray pyrolysis, in which a mixture containing ammonia and an aerosol, which is obtained by spraying a solution containing a metal compound by means of an atomizing gas, is introduced into a high temperature zone of a reaction chamber where it is then reacted in an oxygen-containing atmosphere and subsequently, the solid material is separated.
摘要翻译: 通过喷雾热分解进行金属氧化物粉末的制造方法,其中通过雾化气体将含有金属化合物的溶液雾化而得到的含有氨和气溶胶的混合物导入到反应的高温区域 空间并在其中的含氧气氛中反应,然后分离出固体。
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公开(公告)号:EP2269197A2
公开(公告)日:2011-01-05
申请号:EP09737956.4
申请日:2009-03-30
申请人: Evonik Degussa GmbH
CPC分类号: C09C1/22 , B82Y25/00 , C01P2002/52 , C01P2002/70 , C01P2006/11 , C01P2006/12 , C01P2006/42 , C01P2006/80 , C09C1/28 , C09C3/12 , H01F1/0045 , H01F1/37
摘要: Surface-modified superparamagnetic oxidic particles, characterized by the following physicochemical characteristics : BET surface area 20 to 75 m2/g; Carbon content 0.5 to 6.0% by weight; Tamped density 150 to 500 g/1; Chlorine content 50 to 1000 ppm; Drying loss 0.1 to 4.0% by weight are prepared by contacting the oxides with the surface modifier either by spraying or vapour deposition and then heat-treating them. The surface-modified oxidic particles can be used as a filler in adhesives. Further fields of application are use for data carriers, as a contrast agent in imaging processes, for biochemical separation and analysis processes, for medical applications, as an abrasive, as a catalyst or as a catalyst support, as a thickener, for thermal insulation, as a dispersing assistant, as a flow assistant and in ferrofluids.
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公开(公告)号:EP1784359B1
公开(公告)日:2010-09-08
申请号:EP05767070.5
申请日:2005-07-19
申请人: Evonik Degussa GmbH
发明人: KATUSIC, Stipan , KRÄMER, Michael , MIESS, Horst , HENNIG, Thomas , KRESS, Peter
CPC分类号: B82Y30/00 , C01G25/00 , C01P2002/76 , C01P2002/85 , C01P2004/64 , C01P2006/10 , C01P2006/12 , C01P2006/37 , C01P2006/80
摘要: Nano-scale yttrium-zirconium mixed oxide powder in the form of aggregated primary particles having the following physico-chemical parameters: - BET surface area: from 40 to 100 m2/g, - dn= from 3 to 30 nm, dn= mean, number-related primary particle diameter, - yttrium content, calculated as yttrium oxide Y2O3, determined by chemical analysis, from 5 to 15 wt.%, based on the mixed oxide powder, - yttrium contents of individual primary particles, calculated as yttrium oxide Y2O3 determined by TEM EDX, corresponding to the content in the powder +-10%, - content at room temperature, determined by X-ray diffraction and based on the mixed oxide powder - monoclinic zirconium oxide from
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公开(公告)号:EP1778588A2
公开(公告)日:2007-05-02
申请号:EP05778325.0
申请日:2005-07-26
申请人: Degussa GmbH
发明人: KATUSIC, Stipan , MIESS, Horst , STAAB, Edwin , ZIMMERMANN, Guido , HILL, Sven
CPC分类号: H01B1/08 , B82Y30/00 , C01G15/00 , C01G19/00 , C01G19/006 , C01P2002/72 , C01P2004/50 , C01P2004/62 , C01P2004/64 , C01P2006/12
摘要: Indium-tin mixed oxide powder which consists of primary particle aggregates and contains 50 to 90% by weight indium oxide, calculated as In203, and 10 to 50% by weight tin oxide, calculated as SnO2. It is produced by atomising a solution of an inorganic indium compound and an organic tin compound and burning it in a flame. It may be used for the production of electrically conductive paints and coatings, solar cells and IR and UV absorbers and in medical technology.
摘要翻译: 铟 - 锡混合氧化物粉末,其由初级粒子聚集体构成,并且包含按In 2 O 3计算的50至90重量%的氧化铟和以SnO 2计算的10至50重量%的氧化锡。 它是通过将无机铟化合物和有机锡化合物的溶液雾化并在火焰中燃烧而制得的。 它可用于生产导电油漆和涂料,太阳能电池,红外和紫外线吸收剂以及医疗技术。
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公开(公告)号:EP2364273B1
公开(公告)日:2013-11-06
申请号:EP09756713.5
申请日:2009-11-13
申请人: Evonik Degussa GmbH
发明人: KATUSIC, Stipan , HERZOG, Harald , KRESS, Peter , WIEGAND, Armin
IPC分类号: C01C1/24
CPC分类号: C04B35/62805 , B82Y30/00 , C01G49/00 , C01P2004/04 , C01P2004/51 , C01P2004/64 , C01P2006/12 , C04B35/62894 , C04B35/62897 , C04B2235/3272 , C04B2235/5409 , C09C1/24 , Y10T428/2991 , Y10T428/2993
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公开(公告)号:EP2078059A1
公开(公告)日:2009-07-15
申请号:EP07788148.0
申请日:2007-08-01
申请人: Evonik Degussa GmbH
IPC分类号: C09C1/04
CPC分类号: C09C1/043 , B82Y30/00 , C01P2004/04 , C01P2004/10 , C01P2004/62 , C01P2004/64 , C01P2006/11 , C01P2006/12 , C01P2006/80
摘要: Hydrophobic zinc oxide powder in the form of partially or completely coated aggregates of zinc oxide primary particles having a carbon content of from 0.4 to 1.5% by weight, based on the hydrophobic zinc oxide powder, and a BET surface area of from 25 to 100 m2/g, where the coated aggregates are present to 0 to
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公开(公告)号:EP2027071A1
公开(公告)日:2009-02-25
申请号:EP07729221.7
申请日:2007-05-16
申请人: Evonik Degussa GmbH
CPC分类号: A61K8/27 , A61K8/0287 , A61K8/19 , A61K2800/10 , A61K2800/412 , A61K2800/651 , A61Q19/00 , B01J23/002 , B01J23/06 , B01J35/1009 , B01J35/1014 , B01J37/0238 , B01J2523/00 , B82Y30/00 , C01B13/20 , C01B13/24 , C01F17/0043 , C01G9/03 , C01G45/02 , C01P2004/64 , C01P2004/82 , C01P2006/12 , B01J2523/27 , B01J2523/3712 , B01J2523/22 , B01J2523/72
摘要: Process for preparing mixed metal oxide powders Abstract Process for preparing a mixed metal oxide powder, in which oxidizable starting materials are evaporated in an evaporation zone of a reactor and oxidized in the vaporous state in an oxidation zone of this reactor, the reaction mixture is cooled after the reaction and the pulverulent solids are removed from gaseous substances, wherein at least one pulverulent metal, together with one or more combustion gases, is fed to the evaporation zone, the metal is evaporated completely in the evaporation zone under nonoxidizing conditions, an oxygen-containing gas and at least one metal compound are fed, separately or together, in the oxidation zone to the mixture flowing out of the evaporation zone, the oxygen content of the oxygen-containing gas being at least sufficient to oxidize the metal, the metal compound and the combustion gas completely.
摘要翻译: 用于制备混合金属氧化物粉末的方法提要制备混合金属氧化物粉末的方法,其中可氧化起始原料在反应器的蒸发区中蒸发并在该反应器的氧化区以气态氧化,反应混合物冷却 在反应和粉状固体从气态物质中除去,其中至少一种粉状金属与一种或多种燃烧气体一起被供给到蒸发区,金属在非氧化条件下在蒸发区中完全蒸发,氧气 含有气体和至少一种金属化合物分别或一起在氧化区中加入到流出蒸发区的混合物中,含氧气体的氧含量至少足以氧化金属,金属 化合物和燃烧气体。
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公开(公告)号:EP1917215A1
公开(公告)日:2008-05-07
申请号:EP06777794.6
申请日:2006-07-14
申请人: Evonik Degussa GmbH
IPC分类号: C01G25/00 , C01G25/02 , C04B35/488
CPC分类号: C01G25/006 , C01G25/02 , C01P2002/10 , C01P2002/50 , C01P2004/04 , C01P2004/62 , C01P2004/80 , C01P2006/12 , C01P2006/80 , C04B35/4885 , C04B35/6264 , C04B35/62665 , C04B2235/3225 , C04B2235/441 , C04B2235/449 , C04B2235/5409 , C04B2235/5445 , C04B2235/721 , C04B2235/724 , C04B2235/765
摘要: Mixed oxide powder consisting of particles with the components zirconium dioxide, aluminium oxide and at least a third component selected from the group including yttrium oxide, magnesium oxide or calcium oxide, wherein mixed oxide powder has an aluminium oxide content 0.01 to 10 wt . % and is homogeneously distributed in the mixed oxide particles, the content of aluminium oxide, zirconium dioxide and yttrium oxide is at least 99.5 wt.%, based on the total quantity of the powder, and the BET surface area is 20 to 80 m2/g. It is obtained by atomising a solution containing at least one starting compound for each of aluminium oxide, zirconium dioxide and the third component, allowing the atomised solution to react with oxygen in a reaction chamber at a reaction temperature 700 to 15000C, cooling the hot gases and the solid products and then separating the solid product from the gases. It can be used as a dental material.
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