公开(公告)号：US20040234448A1

公开(公告)日：2004-11-25

申请号：US10801543

申请日：2004-03-17

发明人： Gerard Hillion ,  Serge Leporq ,  Dominique Le Pennec ,  Bruno Delfort

IPC分类号： C01F007/02

CPC分类号： B01J21/005 ,  B01J23/005 ,  B01J23/06 ,  B01J37/0018

摘要： The preparation of a crush-resistant transesterification catalyst of the formula: ZnAl2O4, xZnO, yAl2O3 wherein x and y are in the range of 0-2, comprises: stage (a) wherein the amount of zinc oxide necessary to the formation of said catalyst, in which at least a portion of the zinc oxide is replaced by an equivalent amount of at least one of zinc nitrate or carbonate, is mixed with water and nitric acid; stage (b) wherein the resultant mixture is mixed with an alumina gel peptized in the presence of a water/nitric acid mixture, so as to form a paste; stage (c) wherein the resultant paste is extruded; stage (d) wherein the extruded paste is dried in phases, the first at a temperature of less than 100null C., and the second at a temperature of at least 100null C.; and a stage (e) wherein the extruded and dried paste is calcined.

摘要翻译： 制备具有下式的耐磨酯交换催化剂：ZnAl 2 O 4，xZnO，yAl 2 O 3，其中x和y在0-2范围内，包括：阶段（a）其中形成所述催化剂所需的氧化锌的量 其中至少一部分氧化锌被等量的硝酸锌或碳酸盐中的至少一种与水和硝酸混合; 阶段（b），其中将所得混合物与在水/硝酸混合物存在下胶溶的氧化铝凝胶混合以形成糊状物; 阶段（c），其中所得糊状物被挤出; 阶段（d）其中挤出的糊状物在相中干燥，第一步在低于100℃的温度下进行，第二步在至少100℃的温度下干燥; 和阶段（e），其中挤出和干燥的糊料被煅烧。

公开(公告)号：US20040146456A1

公开(公告)日：2004-07-29

申请号：US10473931

申请日：2004-03-15

发明人： Jean-Luc Le Loarer ,  Christophe Nedez

IPC分类号： C01F007/02

CPC分类号： B01J20/28019 ,  B01J20/08 ,  B01J20/2803 ,  B01J20/28042 ,  B01J20/28069 ,  B01J21/04 ,  B01J35/0026 ,  B01J35/10 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/108 ,  B01J37/10 ,  C01F7/02 ,  C01F7/448 ,  C01P2004/50 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16

摘要： The invention provides alumina agglomerates of the type obtained by dehydrating an aluminum hydroxide or oxyhydroxide, agglomerating the alumina obtained, hydrothermally treating the agglomerates and calcining, characterized in that: they have a specific surface area in the range 90 m2/g to 220 m2/g, preferably in the range 100 m2/g to 200 m2/g; they have a V37 null in the range 40 ml/100 g to 65 ml/100 g, preferably in the range 45 ml/100 g to 60 ml/100 g; they have a V200 null of 12 ml/100 g or more, preferably 15 ml/100 g or more, more preferably 18 ml/100 g or more; and they have a specific surface area/V200 null ratio of 10 or less, preferably 8.5 or less, more preferably 7 or less. The invention also provides a catalyst support, an adsorbent material and a catalyst constituted by said agglomerates. The invention also provides methods for preparing said agglomerates.

摘要翻译： 本发明提供了通过使氢氧化铝或羟基氢氧化物脱水获得的类型的氧化铝附聚物，使获得的氧化铝凝聚，水凝处理附聚物和煅烧，其特征在于：它们的比表面积为90m 2 / g至 220m 2 / g，优选在100m 2 / g至200m 2 / g的范围内; 它们具有在40ml / 100g至65ml / 100g范围内的V37，优选在45ml / 100g至60ml / 100g的范围内; 它们的V200为12ml / 100g以上，优选为15ml / 100g以上，更优选为18ml / 100g以上。 它们的比表面积/ V 200Å比例为10以下，优选为8.5以下，更优选为7以下。 本发明还提供一种催化剂载体，一种吸附材料和一种由所述附聚物构成的催化剂。 本发明还提供了制备所述附聚物的方法。

公开(公告)号：US20040093804A1

公开(公告)日：2004-05-20

申请号：US10614235

申请日：2003-07-08

申请人： PEM ABRASIFS-REFRACTAIRES

发明人： Jean-Andre Alary

IPC分类号： C01F007/02 ,  C09K003/14

CPC分类号： C09K3/1427 ,  C01F7/027 ,  C01P2004/04 ,  C01P2004/22 ,  C01P2004/34 ,  C01P2004/38 ,  C01P2004/61

摘要： The invention relates to an abrasive grain containing electro-fused alumina, formed of crystals of hexagonal structure less than 100 nullm in size, preferably less than 30 nullm, and further preferably less than 5 nullm, having a density that is greater than 97%, preferably 98%, of the theoretical density of alumina and a Knoop hardness of more than 2000. A further purpose of the invention is a method for producing abrasive grains containing alumina, comprising melting of the alumina, its casting at a constant flow rate of less than 80 kg/min, and its cooling by dispersion of the molten alumina in fine droplets to give particles with a size of less than 1 mm. This dispersion is, preferably, conducted by ultrasound-assisted atomization using a frequency of between 15 and 50 MHz. The abrasive grains of the invention are used in particular to produce grindwheels.

摘要翻译： 本发明涉及一种包含电熔氧化铝的磨料颗粒，该颗粒由密度大于97％的小于100μm，优选小于30μm，进一步优选小于5μm的六方结构的晶体形成， 优选98％的氧化铝的理论密度和超过2000°的诺普硬度。本发明的另一个目的是生产含有氧化铝的磨料颗粒的方法，其包括将氧化铝熔融，其铸件以恒定的流速少 超过80kg / min，并且通过将熔融氧化铝分散在细小液滴中而冷却，得到尺寸小于1mm的颗粒。 优选通过使用15至50MHz的频率的超声辅助雾化来进行该分散。 本发明的磨粒特别用于生产磨轮。

公开(公告)号：US20030206854A1

公开(公告)日：2003-11-06

申请号：US10417137

申请日：2003-04-17

申请人： Degussa AG

发明人： Andreas Gutsch ,  Thomas Hennig ,  Stipan Katusic ,  Michael Kramer ,  Gunther Michael ,  Geoffrey J. Varga

IPC分类号： C01F007/02

CPC分类号： B82Y30/00 ,  C01B13/20 ,  C01B13/34 ,  C01F7/304 ,  C01F7/306 ,  C01G1/02 ,  C01G23/07 ,  C01G25/02 ,  C01P2002/02 ,  C01P2002/76 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/80 ,  C09K3/1409 ,  Y10T428/2982

摘要： Nanoscale, pyrogenically produced oxides and/or mixed oxides having a BET surface area of between 1 m2/g and 600 m2/g and a chloride content of less than 0.05 wt. % are produced by converting organometallic and/or organometalloid substances into the oxides at temperatures of above 200null C. The oxides may be used as a polishing agent in the electronics industry (CMP).

摘要翻译： 纳米尺度，热解产生的氧化物和/或具有1m 2 / g至600m 2 / g的BET表面积和小于0.05wt。 通过在高于200℃的温度下将有机金属和/或有机金属物质转化为氧化物来生产。氧化物可以用作电子工业（CMP）中的抛光剂。

公开(公告)号：US20030190281A1

公开(公告)日：2003-10-09

申请号：US10220620

申请日：2002-12-03

发明人： Gerhard Kudermann ,  Jurgen Schubert

IPC分类号： C01F007/02

CPC分类号： C01F7/142

摘要： The invention relates to a method for producing a stable aluminium hydroxide gel on the basis of the sodium aluminate lye which is obtained during the production of Al2O3 according to the BAYER method. The caustic mol ratio (Na2Ofree/Al2O3) of the lye containing aluminate is adjusted to smaller than 1.6. The lye is treated with carboxylic acid anhydride, whereby the aluminium hydroxide gel is precipitated at a temperature of below approximately 40null C., whereby the pH value ranges from 8 to 12. The precipitation product and the lye are separated from one another. The precipitation product is washed and dried, whereby the amorphous structure is obtained.

摘要翻译： 本发明涉及一种根据BAYER法在Al2O3生产过程中获得的铝酸钠碱液的稳定氢氧化铝凝胶的制备方法。 将含碱性铝酸盐的碱性摩尔比（Na 2 O 3 / Al 2 O 3）调节至小于1.6。 用羧酸酐处理碱液，由此氢氧化铝凝胶在低于约40℃的温度下沉淀，由此pH值为8至12。沉淀产物和碱液彼此分离。 将沉淀产物洗涤并干燥，由此得到无定形结构。

公开(公告)号：US20030152509A1

公开(公告)日：2003-08-14

申请号：US10281480

申请日：2002-10-25

发明人： James Donald Carruthers ,  Eduardo A. Kamenetzky ,  Peter J. Achorn

IPC分类号： C01F007/02

CPC分类号： B01J37/0209 ,  B01J21/04 ,  B01J21/12 ,  B01J23/882 ,  B01J23/883 ,  B01J37/08 ,  C01F7/02 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2006/12 ,  C10G35/06 ,  C10G47/04 ,  C10G49/02 ,  Y02P20/584

摘要： Catalysts made from a newly discovered phase of aluminum trihydroxide and processes for making such catalysts. This invention also relates to a method for improving the activity of and for regenerating catalysts having a silica-alumina support.

摘要翻译： 由新发现的三氢氧化铝相制得的催化剂及其制备方法。 本发明还涉及一种改善具有二氧化硅 - 氧化铝载体的催化剂的活性和再生催化剂的方法。

公开(公告)号：US20030049198A1

公开(公告)日：2003-03-13

申请号：US10169557

申请日：2002-09-19

发明人： Neil Brown ,  Norbert Putz

IPC分类号： C01F007/02

CPC分类号： C01F7/148 ,  C01P2006/12 ,  C01P2006/22

摘要： Aluminium hydroxide of improved thermal stability is produced by spray-drying of an aqueous slurry of aluminium hydroxide at 400 to 600null C drying gas temperature. The resulting aluminium hydroxide is suitable as a flame retardant filler in polymeric systems with high processing temperatures. It has a low specific surface area and good rheological properties.

摘要翻译： 通过在400至600℃的干燥气体温度下喷雾干燥氢氧化铝的水性浆料来生产具有改善的热稳定性的氢氧化铝。 所得的氢氧化铝适合作为具有高加工温度的聚合体系中的阻燃填料。 它具有低比表面积和良好的流变性能。

公开(公告)号：US20030012728A1

公开(公告)日：2003-01-16

申请号：US10190583

申请日：2002-07-09

发明人： Hisakatsu Kato ,  Kiyoshi Takeuchi ,  Naoyuki Eguchi

IPC分类号： C01F007/02

CPC分类号： C01F7/02 ,  C01F7/46 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/62 ,  C01P2006/80

摘要： An aluminum hydroxide having high purity with high brightness and a method for producing such an aluminum hydroxide are provided. The aluminum hydroxide may be produced by a method which comprises the steps of mixing a crude aluminum hydroxide with an alkaline solution to obtain a mixture thereof; heating the mixture to obtain a slurry in which a solid of aluminum hydroxide is present in an amount of from about 10% by weight to about 90% by weight based on the crude aluminum hydroxide to be used for the mixing; cooling the slurry to precipitate an aluminum hydroxide; and separating the resulting aluminum hydroxide from the slurry.

摘要翻译： 提供了具有高亮度的高纯度的氢氧化铝和这种氢氧化铝的制造方法。 氢氧化铝可以通过包括将粗制氢氧化铝与碱性溶液混合以获得其混合物的步骤的方法制备; 加热混合物以获得其中氢氧化铝固体以基于用于混合的粗制氢氧化铝的约10重量％至约90重量％的量存在的浆料; 冷却该浆料以沉淀氢氧化铝; 并将所得氢氧化铝与浆料分离。

公开(公告)号：US20020043734A1

公开(公告)日：2002-04-18

申请号：US09748019

申请日：2000-12-27

发明人： Tatsuki Ohji ,  Zhen-Yan Deng

IPC分类号： C04B035/10 ,  C01F007/02 ,  C04B038/00

CPC分类号： B01J35/10 ,  B01D39/2075 ,  B01J21/04 ,  B01J35/1014 ,  B01J35/1061 ,  B01J35/1071 ,  B01J35/109 ,  C04B38/00 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B35/10 ,  C04B35/106

摘要： This invention relates to a method of producing an alumina porous material using a mixed powder of alumina powder and aluminum hydroxide represented by the chemical formula Al(OH)3 at different percentages as the starting material, comprising the steps of heating this mixed powder to decompose the aluminum hydroxide and further heat treating it within a temperature range of 1,000 to 1,600null C., and to the alumina porous material produced by the above-mentioned method with a porosity exceeding 40 volume % and its specific surface area of 8 to 40 m2/g, and further to a filter and catalyst carrier that are obtained using this alumina porous material.

摘要翻译： 本发明涉及使用以不同百分数表示的化学式Al（OH）3表示的氧化铝粉末和氢氧化铝的混合粉末作为起始材料的氧化铝多孔材料的制造方法，包括以下步骤：将该混合粉末加热分解 氢氧化铝，并在1000〜1600℃的温度范围内进一步热处理，并且通过上述方法制造的氧化铝多孔材料，孔隙率超过40体积％，比表面积为8〜40m 2 / g，进一步涉及使用该氧化铝多孔材料获得的过滤器和催化剂载体。

公开(公告)号：US20040247520A1

公开(公告)日：2004-12-09

申请号：US10491897

申请日：2004-04-15

发明人： Nicolas Martin ,  Christian Barthelemy

IPC分类号： C01F007/02

CPC分类号： C04B35/6261 ,  C01F7/023 ,  C01F7/026 ,  C01P2004/61 ,  C01P2006/22 ,  C01P2006/80 ,  C04B35/62625 ,  C04B35/62645 ,  C04B35/6268 ,  C04B35/63 ,  C04B35/632 ,  C04B35/63424 ,  C04B2235/3217 ,  C04B2235/3418 ,  C04B2235/483 ,  C04B2235/72 ,  C09C1/407

摘要： The invention concerns an additive-containing ground calcined alumina used as constituent of a refractory material precursor characterized in that it comprises an organofunctional silane, the organic function being typically an epoxy function, an alkyl function, an alcohol function or a diol function. Preferably said organofunctional silane is an oxyranyl-alkyl-silane, of chemical formula C9H20O5Si. Said additive-containing alumina can be obtained by adding said organofunctional silane during grinding to take advantage of its anti-caking properties, the intimate and homogeneous mixture being obtained as a result of grinding. It may also result from a post-grinding mixing.

摘要翻译： 本发明涉及用作耐火材料前体成分的含添加剂的研磨煅烧氧化铝，其特征在于其包含有机官能硅烷，有机官能团通常为环氧官能团，烷基官能团，醇官能团或二醇官能团。 优选地，所述有机官能硅烷是化学式C 9 H 20 O 5 Si的羟烷基 - 烷基硅烷。 所述含添加剂的氧化铝可以通过在研磨过程中加入所述有机官能硅烷来获得，以利用其抗结块性能，由于研磨而获得的均匀和均匀的混合物。 这也可能是由后研磨混合造成的。