公开(公告)号：US4748016A

公开(公告)日：1988-05-31

申请号：US650710

申请日：1984-09-14

申请人： Jean-Philippe Browaeys ,  Jean-Francois Colombet ,  Patrick Dougier ,  Claude Magnier ,  Regis Poisson

发明人： Jean-Philippe Browaeys ,  Jean-Francois Colombet ,  Patrick Dougier ,  Claude Magnier ,  Regis Poisson

IPC分类号： C04B35/46 ,  C01G23/00 ,  C01G23/047 ,  C04B35/465 ,  C04B35/468 ,  H01B3/12 ,  C01G23/08

CPC分类号： C01G23/006 ,  C04B35/465 ,  C04B35/4682 ,  C01P2002/60 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/62

摘要： Finely divided powders of alkaline earth metal titanates, well suited for the fabrication of, e.g., ceramic resistors and condensers, are facilely prepared by (i) admixing a solution of an alkaline earth metal nitrate with a titanium sol having a pH ranging from 0.8 to 2.5 and which comprises elementary crystallites of TiO.sub.2 having particle sizes ranging from 10 to 100 .ANG., agglomerated into submicronic masses having particle sizes ranging from 200 to 1000 .ANG., (ii) next drying the suspension which results, (iii) calcining said dried suspension at a temperature ranging from 700.degree. to 1300.degree. C. for from 30 minutes to 24 hours, under a NO.sub.x partial pressure decreasing from 1 to 0, and then (iv) optionally grinding the powder resulting from said step (iii).

摘要翻译： 通过（i）将碱土金属硝酸盐的溶液与pH范围为0.8的钛溶胶混合，容易地制备了非常适合制造例如陶瓷电阻器和电容器的细粉碎的碱土金属钛酸盐， 2.5，其包含粒度范围为10至100埃的TiO 2的基本晶体，聚集成具有200至1000埃范围的粒度范围的亚微米质量块，（ii）接下来干燥悬浮液，其结果是（iii）将所述干燥悬浮液在 温度范围为700〜1300℃，时间为30分钟至24小时，NOx分压降低至1，然后（iv）任意研磨由所述步骤（iii）得到的粉末。

公开(公告)号：US4786486A

公开(公告)日：1988-11-22

申请号：US26185

申请日：1987-03-16

申请人： Jean-Claude Guelen ,  Jean-Francois Colombet ,  Claude Magnier ,  Jean-Philippe Browaeys ,  Alain Vesco

发明人： Jean-Claude Guelen ,  Jean-Francois Colombet ,  Claude Magnier ,  Jean-Philippe Browaeys ,  Alain Vesco

IPC分类号： C01G25/00 ,  C01G25/02 ,  C04B35/486 ,  C04B35/626

CPC分类号： C01G25/02 ,  C04B35/486 ,  C04B35/626 ,  C01P2002/54 ,  C01P2006/10 ,  C01P2006/90

摘要： Submicronic zirconia particulates containing stabilizing amounts of yttrium or cerium, well adapted for ceramics applications, are produced by (i) admixing an aqueous suspension of zirconium fluosulfate particles having a pH of from about 0 to 3 with an aqueous solution of a salt of yttrium or cerium, (ii) neutralizing the resulting mixture at a pH of at least 7, (iii) separating a mixture of zirconium/yttrium or zirconium/cerium hydroxides from the medium of neutralization, (iv) washing said mixture of hydroxides to eliminate sulfate and fluoride ions therefrom, and then (v) calcining said mixture of hydroxides.

摘要翻译： 含有稳定量的钇或铈的亚微米氧化锆颗粒，适于陶瓷应用，是通过以下方法制备的：（i）将具有约0至3的pH的硫酸氢锆颗粒的水性悬浮液与钇盐的水溶液或 铈，（ii）在至少7的pH下中和所得混合物，（iii）从中和介质中分离锆/钇或锆/铈氢氧化物的混合物，（iv）洗涤所述氢氧化物混合物以除去硫酸盐和 氟化物离子，然后（v）煅烧所述氢氧化物混合物。

公开(公告)号：US4788045A

公开(公告)日：1988-11-29

申请号：US835212

申请日：1986-03-03

申请人： Jean-Francois Colombet ,  Claude Magnier

发明人： Jean-Francois Colombet ,  Claude Magnier

IPC分类号： C01G25/02 ,  C04B35/486 ,  C04B35/48

CPC分类号： B82Y30/00 ,  C01G25/02 ,  C04B35/486 ,  C01P2002/60 ,  C01P2004/10 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/64 ,  C01P2006/10

摘要： A fine powder of stabilized zirconia a process for its preparation and application of the powder in ceramic compositions to obtain good mechanical, thermomechanical and electrical properties.A zirconia hydrate sol having a pH between 0.5 and 5 and containing elementary acicular crystals having dimensions of from about 10 to 500 .ANG. which are agglomerated into submicron aggregates of from abuot 100 to 5000 .ANG. in diameter is mixed with a solution of a stabilizing agent, preferably yttrium; the suspension is dried; the dried suspension is calcined at a temperature of from about 700.degree. C. to 1,300.degree. C. for preferably from about 30 minutes to 24 hours; and if needed, the powder obtained is milled.

摘要翻译： 稳定的氧化锆的细粉末是一种在陶瓷组合物中制备和应用粉末以获得良好的机械，热机械和电学性质的方法。 将pH值介于0.5和5之间并含有尺寸为约10至500的基本针状结晶的氧化锆水合物溶胶，它们凝聚成直径为abuot 100至5000的亚微米聚集体与稳定剂溶液， 优选钇; 将悬浮液干燥; 将干燥的悬浮液在约700℃至1300℃的温度下煅烧，优选约30分钟至24小时; 并且如果需要，将得到的粉末研磨。

公开(公告)号：US4757037A

公开(公告)日：1988-07-12

申请号：US835213

申请日：1986-03-03

申请人： Jean-Francois Colombet ,  Claude Magnier

发明人： Jean-Francois Colombet ,  Claude Magnier

IPC分类号： C01G23/00 ,  C04B35/462 ,  C01F17/00 ,  C04B35/46

CPC分类号： C04B35/462 ,  C01G23/003 ,  C01P2002/60 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/61

摘要： A fine powder of neodymium titanate or barium neodymium titanate, a process for its preparation and applications in ceramic compositions. A suspension of particles is formed by mixing a solution of neodymium nitrate or a solution of barium and neodymium nitrates with a sol of titania having a pH of from about 0.8 to 2.5 which contains elementary crystallites of TiO.sub.2 having a size of from about 10 to about 100 .ANG. in diameter which are agglomerated into submicron masses of from about 200 to about 1,000 .ANG. in diameter. The suspension obtained is dried, and the dried product is calcined at a temperature between 800.degree. C. and 1,300.degree. C., preferably for about 1 to 24 hours. If necessary, the powder obtained is milled. The fine powder obtained has a low fritting temperature and its density after heating for 2 hours at 1,300.degree. C. is greater than or equal to 95% of the theoretical density of the desired titanate powder.

摘要翻译： 钛酸钕或钛酸钕钛酸镧的精细粉末，其制备及其在陶瓷组合物中的应用。 通过将硝酸钕或钡和硝酸钕的溶液与pH为约0.8至2.5的二氧化钛溶胶混合，形成颗粒悬浮液，所述溶胶含有尺寸为约10至约 100直径的ANGSTROM，它们被聚集成直径为约200至约1,000安培的亚微米质量。 将获得的悬浮液干燥，并将干燥的产物在800℃至1300℃的温度下煅烧，优选约1至24小时。 如果需要，将得到的粉末研磨。 得到的细粉末的烧结温度低，在1300℃下加热2小时后的密度大于或等于所需钛酸粉末理论密度的95％。

公开(公告)号：US4673663A

公开(公告)日：1987-06-16

申请号：US591054

申请日：1984-03-19

申请人： Claude Magnier

发明人： Claude Magnier

IPC分类号： B01D53/86 ,  B01J23/86 ,  B01J37/02 ,  B01J37/34 ,  B01J23/26

CPC分类号： B01D53/86 ,  B01J23/86 ,  B01J37/0244 ,  B01J37/348

摘要： A catalyst support and process for preparing same are provided wherein a metal substrate is coated with a layer of adherent alumina with a layer of chromium interposed between the alumina catalyst support and the metal substrate. The catalyst supports of the invention are especially useful in catalytic converters for the purification and control of exhaust gas emissions from internal combustion engines by the active catalyst oxidation/reduction of carbon monoxide, unburned hydrocarbons and nitrogen oxides.

摘要翻译： 提供了一种催化剂载体及其制备方法，其中金属基材涂覆有一层粘附的氧化铝，其中介于氧化铝催化剂载体和金属基材之间的铬层。 本发明的催化剂载体特别可用于通过一氧化碳，未燃碳氢化合物和氮氧化物的活性催化剂氧化/还原来净化和控制来自内燃机的废气排放的催化转化器。

公开(公告)号：US4671949A

公开(公告)日：1987-06-09

申请号：US813786

申请日：1985-12-27

申请人： Jean-Paul Bourgeois ,  Frederic Couffin ,  Claude Magnier

发明人： Jean-Paul Bourgeois ,  Frederic Couffin ,  Claude Magnier

IPC分类号： C01B25/41 ,  C01B15/16 ,  C01B25/26

CPC分类号： C01B25/41 ,  C01B25/414

摘要： A novel anhydrous sodium tripolyphosphate, well adapted as an additive for foodstuffs and detergent compositions, has an Na/P ratio of essentially 1.667.+-.0.01, an apparent density of from 0.5 to 1.1, a mean agglomerate size of less than 100 microns, a phase I content ranging from 15 to 6% by weight, is devoid of insoluble fraction, and displays zero solidification or caking in a quiescent solvent medium.

摘要翻译： 适合作为食品和洗涤剂组合物添加剂的新型无水三聚磷酸钠具有基本上为1.667 +/- 0.01，表观密度为0.5至1.1，平均聚集体尺寸小于100微米的Na / P比， 15〜6重量％的I相含量不含不溶成分，在静置溶剂介质中显示零固化或结块。

公开(公告)号：US4321244A

公开(公告)日：1982-03-23

申请号：US175583

申请日：1980-08-05

申请人： Claude Magnier ,  Jean Grosbois

发明人： Claude Magnier ,  Jean Grosbois

IPC分类号： C01G49/14 ,  C01B25/01 ,  C01B25/225 ,  C01B25/232 ,  C01F7/74 ,  C01F11/46 ,  C01B25/16

CPC分类号： C01B25/225 ,  C01B25/232

摘要： A process for treating a rock essentially constituted by calcium aluminophosphate, comprising the treatment of the ground rock with a concentrated sulfuric acid in stoichiometric excess with respect to calcium and aluminum, at a temperature of above about 120.degree. C., for a time between a few minutes and about 5 hours, followed by controlled water take-up. Subsequently, a residue containing substantially all the calcium and the aluminum of the rock and a solution of the acids serving to digest a tricalciumphosphate charge are separated. The process is particularly suitable for the treatment of Thies phosphate ore.

摘要翻译： 一种用于处理基本上由磷酸铝钙构成的岩石的方法，包括在高于约120℃的温度下，以相对于钙和铝的化学计量过量的浓硫酸处理研磨的岩石，时间为 几分钟和约5小时，其次是受控的吸水。 随后，分离含有基本上所有钙和铝的铝的残余物和用于消化磷酸三钙电荷的酸的溶液。 该工艺特别适用于硫酸盐矿石的处理。

公开(公告)号：US5071827A

公开(公告)日：1991-12-10

申请号：US245902

申请日：1988-09-19

申请人： Marie-Odile Lafon ,  Claude Magnier

发明人： Marie-Odile Lafon ,  Claude Magnier

IPC分类号： C01B13/32 ,  C01G1/00 ,  C01G3/00 ,  C01G45/00 ,  C01G49/00 ,  C01G51/00 ,  C01G53/00 ,  C04B35/45 ,  H01B13/00 ,  H01L39/24

CPC分类号： B82Y30/00 ,  C01G3/006 ,  C01G45/006 ,  C01G49/009 ,  C01G51/68 ,  C01G53/68 ,  C04B35/4504 ,  H01L39/2419 ,  C01P2002/34 ,  C01P2002/60 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  C01P2006/40 ,  Y10S505/737 ,  Y10S505/78

摘要： Finely divided, homogeneous and easily sintered superconducting powders of at least one rare earth element, e.g., yttrium and/or lanthanum, at least one alkaline earth metal, e.g., barium, calcium and/or strontium, and at least one transition metal, e.g., copper, nickel, manganese, cobalt and/or iron, and oxygen, are produced by (a) intimately admixing a sol of a rare earth element and an aqueous solution of at least one alkaline earth metal nitrate and of at least one nitrate of a transition metal, with the pH of the resulting mixture being adjusted to a value such that said nitrates remain solubilized therein; (b) drying the resulting mixture; (c) calcining the dried product; and, optionally; (d) grinding the calcined material.

摘要翻译： 至少一种稀土元素（例如钇和/或镧），至少一种碱土金属（例如钡，钙和/或锶）和至少一种过渡金属的细分，均匀且易于烧结的超导粉末，例如 铜，镍，锰，钴和/或铁和氧，通过以下方法制备：（a）将稀土元素的溶胶与至少一种碱土金属硝酸盐的水溶液和至少一种硝酸盐 过渡金属，将所得混合物的pH调节至使所述硝酸盐保持溶解的值; （b）干燥所得混合物; （c）煅烧干燥产品; 和，可选地; （d）研磨煅烧材料。

公开(公告)号：US5021192A

公开(公告)日：1991-06-04

申请号：US30133

申请日：1987-03-26

申请人： Claire David ,  Claude Magnier

发明人： Claire David ,  Claude Magnier

IPC分类号： B01J13/00 ,  B01J23/10 ,  C01F17/00

CPC分类号： B82Y30/00 ,  B01J23/10 ,  C01F17/0043 ,  C01F17/0075 ,  C01P2004/64

摘要： Highly concentrated, aqueous colloidal dispersions of a cerium (IV) compound, adapted for the impregnation of catalyst supports, are prepared by reacting an aqueous solution of a cerium (IV) salt with a base, to precipitate a certain cerium hydroxynitrate, separating and washing said precipitate, and then dispersing the washed precipitate in an aqueous acid medium.

摘要翻译： 通过使铈（IV）盐的水溶液与碱反应沉淀出某些羟基硝酸铈，分离和洗涤来制备用于浸渍催化剂载体的铈（IV）化合物的高浓度水性胶体分散体 所述沉淀物，然后将洗涤的沉淀物分散在含水酸性介质中。

公开(公告)号：US4859432A

公开(公告)日：1989-08-22

申请号：US135380

申请日：1987-12-21

申请人： Claire David ,  Claude Magnier ,  Bertrand Latourrette

发明人： Claire David ,  Claude Magnier ,  Bertrand Latourrette

IPC分类号： B01J23/10 ,  B01J35/10 ,  C01F17/00

CPC分类号： B01J35/10 ,  B01J23/10 ,  B01J35/002 ,  B01J35/023 ,  B01J35/06 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1061 ,  B01J35/108 ,  C01F17/00 ,  C01F17/0043 ,  B01J35/006 ,  C01P2002/01 ,  C01P2006/13 ,  C01P2006/14 ,  C01P2006/16

摘要： Morphologically improved ceric oxide particulates have a BET specific surface, measured after calcination at a temperature of from 350.degree. to 450.degree. C., of at least 100 m.sup.2 /g, a total pore volume of at least 0.3 cm.sup.3 /g, and the pores of which having a mean diameter larger than 50 .ANG.. The improved ceric oxide particulates are prepared by reacting a cerium salt with a strong base in the presence of carboxylate ions, or a cerium carboxylate with a strong base; separating the precipitate of true cerium hydroxide thus produced; and washing, heat-treating, and calcining such precipitate.

摘要翻译： 形态改善的氧化铈颗粒具有BET比表面积，在350至450℃的温度下煅烧至少100m 2 / g，总孔体积至少为0.3cm 3 / g，孔隙 其平均直径大于50 ANGSTROM。 通过在羧酸根离子存在下使铈盐与强碱反应，或者将具有强碱的羧酸铈反应来制备改性的氧化铈颗粒; 分离如此制得的真正的氢氧化铈的沉淀物; 并进行洗涤，热处理和煅烧这样的沉淀。