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    Preparation of ammonium rare earth double oxalates and rare earth oxides produced therefrom
    1.
    发明授权
    Preparation of ammonium rare earth double oxalates and rare earth oxides produced therefrom 失效
    制备由其制备的稀土稀土双草酸盐和稀土氧化物

    公开(公告)号：US5665323A

    公开(公告)日：1997-09-09

    申请号：US437217

    申请日：1995-05-08

    申请人： Claire David

    发明人： Claire David

    IPC分类号： C01C1/28 ,  C01F17/00 ,  C07C51/41 ,  C07C55/07 ,  C07F5/00

    CPC分类号： C07C51/412

    摘要： Particulate and coarse ammonium rare earth double oxalate crystals, readily converted into rare earth oxide particles by simple calcination, e.g., yttrium oxide particles, are prepared by (a) intimately admixing, in an aqueous medium, (i) at least one rare earth neutral oxalate with (ii) at least one precursor compound adapted to liberate ammonium ions in water and (iii) at least one precursor compound adapted to liberate oxalate ions in water, (b) separating the double oxalate precipitate thus formed, and (c), optionally, washing and drying such double oxalate precipitate.

    摘要翻译： 通过（a）在水性介质中密切混合（i）至少一种稀土中性物质，制备通过简单煅烧容易地转化为稀土氧化物颗粒的颗粒和粗铵稀土双草酸盐晶体，例如氧化钇颗粒， 草酸盐与（ii）适于在水中释放铵离子的至少一种前体化合物和（iii）适于在水中释放草酸离子的至少一种前体化合物，（b）分离由此形成的双重草酸盐沉淀物，和（c） 任选地，洗涤和干燥这种双草酸盐沉淀物。

    Rare earth oxides
    2.
    发明授权
    Rare earth oxides 失效
    稀土氧化物

    公开(公告)号：US5496528A

    公开(公告)日：1996-03-05

    申请号：US206224

    申请日：1994-03-07

    申请人： Claire David ,  Francoise Seon

    发明人： Claire David ,  Francoise Seon

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

    CPC分类号： B01J23/10 ,  C01F17/00 ,  C01F17/0043 ,  C01P2004/01 ,  C01P2004/50 ,  C01P2006/13 ,  C01P2006/14 ,  C01P2006/16

    摘要： Novel rare earth oxides having a large specific surface of at least 40 m.sup.2 /g, well adapted for catalysis, are prepared (i) by reacting at least one rare earth salt with a strong base in the presence of carboxylate ions, or by reacting at least one rare earth carboxylate with a strong base, to produce a true rare earth hydroxide, (ii) separating the precipitate thus produced, and then (iii) washing and (iv) calcining such precipitate.

    摘要翻译： 通过在羧酸根离子的存在下使至少一种稀土盐与强碱反应，或者通过使羧酸根离子的反应进行反应来制备具有至少40m 2 / g的较大比表面积的至少40m 2 / g的大量稀土氧化物， 至少一种具有强碱的稀土羧酸盐，以产生真正的稀土氢氧化物，（ii）分离由此产生的沉淀，然后（iii）洗涤和（iv）煅烧该沉淀物。

    Process for producing morphologically improved ceric oxide particulates
    3.
    发明授权
    Process for producing morphologically improved ceric oxide particulates 失效
    生产形态改善的氧化铈颗粒的方法

    公开(公告)号：US4965057A

    公开(公告)日：1990-10-23

    申请号：US211896

    申请日：1988-06-27

    申请人： Claire David ,  Francoise Seon

    发明人： Claire David ,  Francoise Seon

    IPC分类号： B01J23/10 ,  C01F17/00

    CPC分类号： B82Y30/00 ,  C01F17/0043 ,  C01F17/0075 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2004/64

    摘要： Morphologically improved ceric oxide particulates having a grain size distribution such that the mean diameter of the aggregates thereof ranges from 0.2 to 1 .mu.m, are conveniently prepared by (i) hydrolyzing an aqueous solution of a cerium (IV) salt in an acid medium, (ii) adding an aqueous colloidal dispersion of a cerium (IV) compound to the product of step (i), (iii) separating the precipitate from step (ii), and then (IV) heat treating said separated precipitate, advantageously by calcination at elevated temperatures.

    摘要翻译： 通过（i）在酸性介质中水解铈（IV）盐的水溶液，方便地制备具有粒径分布的形态改善的氧化铈颗粒，使其聚集体的平均直径范围为0.2-1μm， （ⅱ）将铈（Ⅳ）化合物的水性胶体分散体加入到步骤（ⅰ），（ⅲ）的产物中，分离步骤（ⅱ）中的沉淀物，然后（Ⅳ）有利地通过煅烧热处理所述分离的沉淀物 在高温下。

    Ceric oxide particulates having improved morphology
    4.
    发明授权
    Ceric oxide particulates having improved morphology 失效
    具有改善形态的氧化铈颗粒

    公开(公告)号：US5279789A

    公开(公告)日：1994-01-18

    申请号：US920540

    申请日：1992-07-28

    申请人： Jean-Luc Le Loarer ,  Francoise Picard ,  Claire David

    发明人： Jean-Luc Le Loarer ,  Francoise Picard ,  Claire David

    IPC分类号： B01J23/10 ,  C01F17/00

    CPC分类号： B01J23/10 ,  C01F17/0012 ,  C01F17/0043 ,  C01P2002/04 ,  C01P2002/60 ,  C01P2006/13 ,  C01P2006/14 ,  C01P2006/16

    摘要： Ceric oxide particulates having a specific surface of at least 190 m.sup.2 /g, measured after calcination at a temperature of from 350.degree. to 450.degree. C., and a specific surface of at least 15 m.sup.2 /g after calcination at 800.degree. C., are prepared by (a) suspending, in an aqueous solution of a decomposable base, a ceric hydroxide of the formula (I):Ce(M).sub.x (OH).sub.y (NO.sub.3).sub.z (I)wherein M is an alkali metal or a quaternary ammonium radical; x is a number ranging from 0.01 to 0.2; y is such that y=4-z+x; and z is a number ranging from 0.4 to 0.7; (b) heating the resulting suspension in a confined reaction zone to a temperature and pressure respectively lower than its critical temperature and pressure; (c) cooling such reaction medium and permitting it to return to atmospheric pressure; (d) separating the ceric hydroxide thus treated; and (e) calcining the separated ceric hydroxide.

    摘要翻译： 在350摄氏度至450摄氏度的温度下焙烧后测定的比表面积至少为190m 2 / g的氧化铈颗粒，800℃煅烧后的比表面积至少为15m 2 / g， 通过（a）在可分解碱的水溶液中悬浮式（I）的Ce（M）x（OH）y（NO 3）z（I）的氢氧化铈：其中M是碱金属或 季铵基; x为0.01〜0.2的数; y为y = 4-z + x; z为0.4〜0.7的数; （b）将受限反应区中得到的悬浮液加热到分别低于其临界温度和压力的温度和压力; （c）冷却该反应介质并使其回到大气压; （d）分离如此处理的氢氧化铈; 和（e）煅烧分离的氢氧化铈。

    Sulphonated polyesters as finishing agents in detergent, rinsing, softening and textile treatment compositions
    5.
    发明授权
    Sulphonated polyesters as finishing agents in detergent, rinsing, softening and textile treatment compositions 失效
    磺化聚酯作为洗涤剂，漂洗，软化和纺织品处理组合物中的整理剂

    公开(公告)号：US06579466B1

    公开(公告)日：2003-06-17

    申请号：US09887664

    申请日：1997-11-20

    申请人： Claire David ,  Etienne Fleury ,  Yvette Girardeau

    发明人： Claire David ,  Etienne Fleury ,  Yvette Girardeau

    IPC分类号： D06M950

    CPC分类号： C08G63/6884 ,  C11D3/3715 ,  D06M15/5075

    摘要： New water-dispersible or water-soluble sulphonated polyesters with a number molecular mass lower than 20000, exhibiting a sulphur weight content of the order of 0.5 to 10% and a hydroxyl functional group content, expressed as OH equivalent/kg of polymer, higher than 0.2. They may be employed as antisoiling and/or antiredeposition agents and optionally detergents in detergent compositions, in rinsing, softening or antisoiling treatment compositions, for washing with or without pretreatment, rinsing, softening or the antisoiling treatment of textiles, especially those polyester-based.

    摘要翻译： 数均分子量小于20000的新型水分散性或水溶性磺化聚酯，其重量含量为0.5〜10％，羟基官能团含量为OH当量/ kg聚合物，高于 0.2。 它们可以用作洗涤剂组合物，漂洗，软化或防污处理组合物中的防污和/或抗再沉积剂和任选的洗涤剂，用于洗涤或不进行预处理，漂洗，软化或织物处理纺织品，特别是那些基于聚酯的洗涤剂。

    Stable colloidal dispersions of rare earth compounds
    8.
    发明授权
    Stable colloidal dispersions of rare earth compounds 失效
    稀土化合物稳定的胶体分散体

    公开(公告)号：US5716547A

    公开(公告)日：1998-02-10

    申请号：US55772

    申请日：1993-05-03

    申请人： Claire David

    发明人： Claire David

    IPC分类号： B01J13/00 ,  C01F17/00 ,  C07F5/00 ,  B01N13/00

    CPC分类号： B82Y30/00 ,  B01J13/0013 ,  C01F17/0012 ,  C01F17/0043 ,  C07F5/003 ,  C01P2004/64

    摘要： Stable colloidal dispersions, in water, of rare earth compounds, e.g., yttric rare earth compounds, are produced by (a) reacting, in an aqueous reaction medium, a rare earth oxide with a controlled effective amount of a monovalent water-soluble acid having a pK.sub.a of from 2.5 to 5.0, and then (b) heating the resulting medium of reaction.

    摘要翻译： 通过（a）在水性反应介质中使稀土氧化物与受控有效量的一价水溶性酸反应，制备稀土化合物例如稀土化合物在水中的稳定的胶体分散体，其具有 pKa为2.5至5.0，然后（b）加热所得的反应介质。

    Colloidal dispersions of cerium (IV) compound
    10.
    发明授权
    Colloidal dispersions of cerium (IV) compound 失效
    铈（IV）化合物的胶体分散体

    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。