公开(公告)号：WO01064586A1

公开(公告)日：2001-09-07

申请号：PCT/IL2000/000125

申请日：2000-03-01

IPC分类号： C01G25/02 ,  C01G25/06

CPC分类号： C01G25/02 ,  C01G25/06 ,  C01P2002/60 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2006/80

摘要： A process for the manufacture of substantially pure Zirconium Oxide powder from zirconium-bearing materials, comprising the following steps: a) a solution, containing 30-40 % CaCl2 by weight, is homogeneously mixed with ground Zirconium-bearing materials in a mole ratio of ZrSiO4:CaCl2 in the range of 0.9-1.3. b) The slurry is granulated and dried in contact with hot gases to obtain granules of 0.1 to 10 mm size, with a residual water content less than 6 %. c) The dried granules are continuously fed to a first kiln, where they are contacted counter-currently with hot combustion gases containing water vapors, and heated gradually to 900-1000 DEG C. d) The intermediate solids from the first kiln are continuously transferred into a second kiln and heated to 1,400 DEG C. The remaining traces of HCI are removed and the solid phases are reorganized into ZrO2 and CaO, SiO2.

摘要翻译： 一种从含锆材料制造基本上纯的氧化锆粉末的方法，包括以下步骤：a）将含有30-40％重量CaCl 2的溶液与研磨的含锆材料均匀混合，摩尔比为 ZrSiO4：CaCl2在0.9-1.3的范围内。 b）将浆料造粒并与热气体接触干燥，得到0.1至10mm尺寸的颗粒，残留水含量小于6％。 c）将干燥的颗粒连续地进料到第一窑中，其中它们与含有蒸汽的热燃烧气体反向接触，并逐渐加热至900-1000℃。d）来自第一窑的中间体固体连续转移 进入第二窑并加热至1400℃。除去剩余痕量的HCl，将固相重组为ZrO 2和CaO，SiO 2。

公开(公告)号：WO01049606A1

公开(公告)日：2001-07-12

申请号：PCT/FR2000/003756

申请日：2000-12-29

IPC分类号： B82B3/00 ,  B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J29/03 ,  B01J35/00 ,  C01B37/00 ,  C01F17/00 ,  C01G23/04 ,  C01G25/02 ,  B01D53/56 ,  B01J21/06 ,  C01G23/047 ,  B01J29/02

CPC分类号： B82Y30/00 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/407 ,  B01D2255/9207 ,  B01J23/10 ,  B01J35/0013 ,  C01B37/00 ,  C01F17/0043 ,  C01G23/04 ,  C01G25/02 ,  C01P2004/52 ,  C01P2004/64 ,  C01P2006/14

摘要： The invention concerns a method for preparing a controlled mesoporous or mesostructured material, heat stable and at least partly crystallised, said method comprising steps which consist in: (A) forming an initial dispersion comprising: (1) at least partly crystalline colloidal particles of nanometric dimensions, whereof at least 50 % of the population has a mean diameter ranging between 1 and 40 nm, and (2) a texturizer; (B) concentrating the resulting dispersion so as to obtain a solid by texturization and gradual aggregation of the colloidal particles; and (C) eliminating the texturizer in the resulting solid. The invention also concerns the partly crystalline and heat stable mesostructured products obtained by said method. The invention further concerns mesostructured materials, at least partly crystalline and heat stable, consisting essentially of a cerium, zirconium and/or titanium oxide. Said materials can be used in particular in catalysis.

摘要翻译： 本发明涉及一种制备受热介孔或介孔结构材料的方法，其热稳定且至少部分结晶，所述方法包括以下步骤：（A）形成初始分散体，其包括：（1）至少部分结晶的纳米颗粒状胶体颗粒 尺寸，其中至少50％的群体具有在1和40nm之间的平均直径，和（2）纹理化; （B）浓缩所得分散体，以通过胶体颗粒的组织化和逐渐聚集获得固体; 和（C）消除所得固体中的结晶器。 本发明还涉及通过所述方法获得的部分结晶和热稳定的介晶结构产物。 本发明还涉及基本上由铈，锆和/或氧化钛组成的至少部分结晶和热稳定的介孔结构材料。 所述材料特别可用于催化。

公开(公告)号：WO00078671A1

公开(公告)日：2000-12-28

申请号：PCT/US2000/017144

申请日：2000-06-21

IPC分类号： C01B13/18 ,  C01G23/047 ,  C01G23/053 ,  C01G25/02 ,  C01G49/06 ,  C01B13/32

CPC分类号： B82Y30/00 ,  C01B13/18 ,  C01G23/047 ,  C01G23/053 ,  C01G25/02 ,  C01G49/06 ,  C01P2002/60 ,  C01P2004/64

摘要： The present invention is a method of making crystalline metal oxide particles of a substantially pure crystalline phase, having the steps of: (a) preparing an aqueous solution having a metal salt, and a phase controlling agent; and (b) heating the aqueous solution to a temperature and for a time sufficient to form the crystalline metal oxide particles of the substantially pure crystalline phase. The crystalline metal oxide is defined by a crystallite diameter greater than about 10 nm. The present invention includes use of a phase controlling agent in the aqueous solution. An advantage of the present invention is to obtain substantially pure phase in less than a minute.

摘要翻译： 本发明是制造基本上纯的结晶相的结晶金属氧化物颗粒的方法，其具有以下步骤：（a）制备具有金属盐的水溶液和相控制剂; 和（b）将水溶液加热至足以形成基本上纯的结晶相的结晶金属氧化物颗粒的温度和时间。 结晶金属氧化物由大于约10nm的微晶直径限定。 本发明包括在水溶液中使用相位控制剂。 本发明的优点是在不到一分钟内获得基本上纯的相。

公开(公告)号：WO99003627A1

公开(公告)日：1999-01-28

申请号：PCT/US1998/012306

申请日：1998-06-12

IPC分类号： C04B35/626 ,  B22F1/00 ,  B22F9/30 ,  C01B13/32 ,  C01B17/20 ,  C01B21/06 ,  C01G25/02 ,  B22F9/24 ,  C01B13/18 ,  C01B31/30 ,  C01F1/00 ,  C01G1/00 ,  C04B35/622

CPC分类号： B82Y30/00 ,  B22F1/0018 ,  B22F9/30 ,  C01G25/02 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  Y10S977/777

摘要： Disclosed is a composition of an essentially solid phase state having as components, a liquid hydrophilic organic polymer, an aqueous salt solution containing at least one metallic or metalloid element, and a coagulating agent. The composition on calcination provides a metal-containing powder having an average particle size of 1 micrometer or less. Such metal-containing powders are of value in the preparation of industrial catalysts, ceramics, electronic components, or as fillers in plastics, paints or cosmetics.

摘要翻译： 公开了具有液体亲水性有机聚合物，含有至少一种金属或准金属元素的水性盐溶液和凝结剂作为组分的基本上固相状态的组合物。 煅烧组合物提供平均粒径为1微米或更小的含金属粉末。 这种含金属粉末在制备工业催化剂，陶瓷，电子部件或作为塑料，油漆或化妆品中的填料中是有价值的。

公开(公告)号：WO98045212A1

公开(公告)日：1998-10-15

申请号：PCT/US1998/006437

申请日：1998-04-01

IPC分类号： B01D53/94 ,  B01J23/10 ,  B01J35/10 ,  B01J37/00 ,  B01J37/03 ,  C01B13/02 ,  C01F7/00 ,  C01G25/00 ,  C01G25/02 ,  C07C5/333 ,  C07C5/42

CPC分类号： B01D53/945 ,  B01J23/10 ,  B01J35/1014 ,  B01J37/0018 ,  B01J37/03 ,  C01B13/0262 ,  C01B13/0281 ,  C01F7/00 ,  C01G25/00 ,  C01G25/02 ,  C01P2002/54 ,  C01P2006/12 ,  C01P2006/80 ,  C01P2006/90 ,  C07C5/3332 ,  C07C2521/06 ,  C07C2523/10 ,  Y02T10/22 ,  C07C15/46

摘要： The production of cerium oxides, zirconium oxides, (Ce, Zr)O2 mixed oxides and (Ce, Zr)O2 solid solutions having improved particle size distribution, surface area, oxygen storage capacity and pore volume by the addition of an additive, such as an anionic or nonionic surfactant, during the formation of the or oxides or precursors thereof.

摘要翻译： 通过添加添加剂来制备具有改善的粒度分布，表面积，储氧能力和孔体积的氧化铈，氧化锆，（Ce，Zr）O 2混合氧化物和（Ce，Zr）O 2固溶体， 阴离子或非离子表面活性剂，在其形成或其氧化物或前体期间。

公开(公告)号：WO1998016472A1

公开(公告)日：1998-04-23

申请号：PCT/IB1997001253

申请日：1997-10-09

申请人： RHONE-POULENC INC.

发明人： RHONE-POULENC INC. ,  CUIF, Jean, Pierre

IPC分类号： C01G25/00

CPC分类号： B01J23/10 ,  C01F7/00 ,  C01G25/00 ,  C01G25/02 ,  C01P2002/54 ,  C01P2006/12 ,  C01P2006/32 ,  C01P2006/90

摘要： Mixed oxides of cerium and zirconium as well as solid solutions and cerium oxides are produced having improved thermal stability. The process involves the formation of cerium and zirconium oxides, mixed oxides and solid solutions by methods such as co-thermohydrolysis and co-precipitation, followed by washing or impregnating with an alkoxylated compound having greater than (2) carbon atoms. After the washing or impregnating step, the mixture is calcined to form oxides having very high surface area and oxygen storage capacity. The improved thermal stability of the oxides makes them advantageous for use in applications such as catalytic converters.

摘要翻译： 生产铈和锆的混合氧化物以及固溶体和氧化铈，其具有改进的热稳定性。 该方法包括通过诸如共热水解和共沉淀的方法形成铈和锆氧化物，混合氧化物和固溶体，然后用具有大于（2）个碳原子的烷氧基化化合物洗涤或浸渍。 在洗涤或浸渍步骤之后，将混合物煅烧以形成具有非常高的表面积和储氧能力的氧化物。 氧化物的改进的热稳定性使其在用于催化转化器等应用中是有利的。

公开(公告)号：WO1996029280A1

公开(公告)日：1996-09-26

申请号：PCT/US1996003432

申请日：1996-03-13

申请人： INSTITUTE OF GAS TECHNOLOGY

发明人： INSTITUTE OF GAS TECHNOLOGY ,  ONG, Estela, T. ,  SENDIJAREVIC, Vahid

IPC分类号： C01B13/18

CPC分类号： B82Y30/00 ,  C01B13/18 ,  C01G25/02 ,  C01P2002/32 ,  C01P2002/34 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/80 ,  C04B38/0615

摘要： A process for producing nano size powders comprising the steps of mixing an aqueous continuous phase comprising at least one metal cation salt with a hydrophilic organic polymeric disperse phase, forming a metal cation salt/polymer gel, and heat treating the gel at a temperature sufficient to drive off water and organics within the gel, leaving as a residue a nanometer particle-size power.

摘要翻译： 一种制备纳米尺寸粉末的方法，包括以下步骤：将包含至少一种金属阳离子盐的水性连续相与亲水性有机聚合物分散相混合，形成金属阳离子盐/聚合物凝胶，并在足以 驱除凝胶内的水和有机物，留下一个纳米粒子的残留物。

公开(公告)号：WO1995035260A1

公开(公告)日：1995-12-28

申请号：PCT/US1995007636

申请日：1995-06-16

申请人： PELTEK, INC. ,  DE WET, Willem, Johannes ,  DE BEER, Jacob, Adriaan

发明人： PELTEK, INC.

IPC分类号： C01G25/02

CPC分类号： B82Y30/00 ,  C01B33/182 ,  C01G25/02 ,  C01P2002/02 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/82 ,  C01P2006/12 ,  C01P2006/60 ,  C01P2006/80

摘要： A process (10) for treating silica-bearing material comprises maintaining a hot reducing atmosphere in a reaction zone (11), and passing a particulate solid silica-bearing material through the reaction zone (11) in an unsupported manner. The material is allowed to heat up and to react as it passes through the zone (11), thereby to produce a silicon-rich fraction (line 16) and a silicon-poor fraction (line 18).

摘要翻译： 用于处理含二氧化硅的材料的方法（10）包括在反应区（11）中保持热还原气氛，并使无机颗粒固体含硅材料通过反应区（11）。 允许材料加热并在其通过区域（11）时反应，从而产生富硅部分（管线16）和无硅部分（管线18）。

公开(公告)号：WO1995003907A1

公开(公告)日：1995-02-09

申请号：PCT/US1994008533

申请日：1994-07-26

申请人： NANOPHASE TECHNOLOGIES CORPORATION

发明人： NANOPHASE TECHNOLOGIES CORPORATION ,  PARKER, John, C. ,  ALI, Mohammed, N. ,  LYMPANY, Byron, B.

IPC分类号： B22F09/14

CPC分类号： B82Y30/00 ,  B22F1/0003 ,  B22F1/0018 ,  B22F1/0048 ,  C01B13/28 ,  C01B33/12 ,  C01F7/424 ,  C01G23/047 ,  C01G25/02 ,  C01P2002/72 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/64 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  Y10S75/954

摘要： A method and system for synthesizing nanocrystalline material. A system includes a chamber (14), a nonconsumable cathode (20) shielded against chemical reaction by a working gas not including an oxidizing gas, but including an inert gas, a consumable anode (12) vaporizable by an arc formed between the cathode and the anode, and a nozzle (35) for injecting at least one of a quench and reaction gas in the boundaries of the arc.

摘要翻译： 一种合成纳米晶体材料的方法和系统。 一种系统包括：腔室（14），不消耗化学反应的非消耗性阴极（20），其被不包括氧化气体的工作气体所包围，但包括惰性气体;可消耗的阳极（12），其通过在阴极和 阳极和用于在弧的边界中喷射淬火和反应气体中的至少一种的喷嘴（35）。

公开(公告)号：WO1994001762A1

公开(公告)日：1994-01-20

申请号：PCT/DE1993000524

申请日：1993-06-18

申请人： ROBERT BOSCH GMBH ,  FRIESE, Karl-Hermann

发明人： ROBERT BOSCH GMBH

IPC分类号： G01N27/411

CPC分类号： C04B35/62813 ,  C01G25/02 ,  C01P2004/61 ,  C01P2004/80 ,  C04B35/486 ,  C04B35/4885 ,  C04B35/62665 ,  C04B35/628 ,  C04B35/62805 ,  C04B35/62815 ,  C04B35/62886 ,  C04B2235/3217 ,  C04B2235/3225 ,  C04B2235/3244 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  G01N27/4073 ,  H01M8/1246 ,  Y02E60/525 ,  Y02P70/56

摘要： The proposal is for a temperature-resistant ceramic used especially as a solid electrolyte ceramic for gas sensors. The ceramic of the invention comprises at least two ceramic powders, and at least one ceramic powder is highly stabilised, i.e. contains at least 4 mol% yttrium oxide, and at least one second ceramic powder which is low-stabilised, i.e. contains between 0 and 2.5 mol% yttrium oxide, consists of grains, the surface of which has a coating, especially aluminium oxide, which inhibits the diffusion of the stabiliser oxide cations. According to the invention, a very uniform distribution of the aluminium oxide in the body of the ceramic is attained, with a concomitant improvement in the impact strength, endurance limit and temperature shock resistance without any adverse effect on the O2 ion conductivity.