Colloidal dispersion of calcium phosphate tablets and method of obtaining the same
    1.
    发明授权
    Colloidal dispersion of calcium phosphate tablets and method of obtaining the same 有权
    磷酸钙片剂的胶体分散体及其制备方法

    公开(公告)号:US07807724B2

    公开(公告)日:2010-10-05

    申请号:US10563167

    申请日:2004-06-28

    CPC classification number: C01B25/324 B01J13/0013 C01B25/32

    Abstract: The invention provides colloidal dispersions of calcium phosphate platelets comprising at least one polymer which complexes the calcium and in which the length of the platelets, L, is between 5 and 500 nm and in which the thickness of the platelets is between 0.5 and 20 nm.Another subject-matter of the invention is the calcium phosphate platelets obtained by drying the colloidal dispersion according to the invention.The invention also provides a process for preparing these colloidal dispersions of calcium phosphate platelets according to the invention.Finally, another subject-matter of the invention is the use of the abovementioned colloidal dispersions of platelets as food additive, reinforcing filler, thermal insulation filler, pharmaceutical excipient, polishing agent, building materials, additive for oral formulations, in particular dentifrices, or encapsulating agent.

    Abstract translation: 本发明提供磷酸钙血小板的胶体分散体,其包含至少一种与钙复合的聚合物,其中血小板的长度L在5至500nm之间,其中血小板的厚度在0.5至20nm之间。 本发明的另一主题是通过干燥根据本发明的胶体分散体获得的磷酸钙血小板。 本发明还提供了制备本发明的磷酸钙血小板的这些胶体分散体的方法。 最后,本发明的另一主题是使用上述血小板的胶体分散体作为食品添加剂,增强填料,绝热填料,药物赋形剂,抛光剂,建筑材料,用于口服制剂的添加剂,特别是牙粉或包封 代理商

    Aqueous dispersion of a rare earth phosphate, and a process for its preparation
    2.
    发明申请
    Aqueous dispersion of a rare earth phosphate, and a process for its preparation 有权
    稀土磷酸盐的水分散体及其制备方法

    公开(公告)号:US20070179203A1

    公开(公告)日:2007-08-02

    申请号:US11728657

    申请日:2007-03-27

    CPC classification number: B01J13/0013

    Abstract: The invention concerns an aqueous colloidal dispersion of isotropic particles of a phosphate of at least one rare earth and is characterized in that it comprises either a complexing agent with a pK (cologarithm of the dissociation constant of the complex formed by the complexing agent and said rare earth) of more than 2.5; or an anion of a monobasic acid, soluble in water and with a pKa in the range 2.5 to 5; or said complexing agent and/or said anion of a monobasic acid. In the case of cerium and lanthanum, the mean particle size is at most 20 nm. The dispersions can have a degree of colloid agglomeration of less than 40%.This dispersion can be prepared by forming an aqueous mixture comprising at least one rare earth salt and the complexing agent or monobasic acid anion; by adding a base then phosphate ions to the mixture formed; and heating the mixture obtained. A precipitate is obtained that is re-dispersed in water.

    Abstract translation: 本发明涉及至少一种稀土磷酸盐的各向同性粒子的水性胶体分散体,其特征在于它包括与pK络合剂的络合剂(由络合剂形成的络合物的解离常数和所述稀土 地球)超过2.5; 或一元酸的阴离子,可溶于水和pKa在2.5至5的范围内; 或所述络合剂和/或一元酸的所述阴离子。 在铈和镧的情况下,平均粒径为20nm以下。 分散体可以具有小于40%的胶体聚集度。该分散体可以通过形成包含至少一种稀土盐和络合剂或一元酸阴离子的含水混合物来制备; 通过向形成的混合物中加入碱,然后加入磷酸根离子; 并加热获得的混合物。 得到重新分散在水中的沉淀物。

    Heavy metal cation recovering agent including a silicate or
aluminosilicate type compound and a carbonate type compound
    3.
    发明授权
    Heavy metal cation recovering agent including a silicate or aluminosilicate type compound and a carbonate type compound 失效
    重金属阳离子回收剂,包括硅酸盐或硅铝酸盐型化合物和碳酸盐型化合物

    公开(公告)号:US5858242A

    公开(公告)日:1999-01-12

    申请号:US737072

    申请日:1997-05-20

    CPC classification number: C02F1/281 Y10S210/912 Y10S502/516

    Abstract: An agent for recovering heavy metal cations from an aqueous effluent, including a silicate or aluminosilicate type compound, e.g. an alkali metal silicate or aluminosilicate, and a carbonate type compound, e.g. an alkali metal carbonate, and preferably a carrier such as a lay. The agent may also form a cation stabilizer. Said agent is useful for removing or stabilizing heavy metal cations in the water used for cleaning flue gases from waste incineration, particularly household refuse and industrial waste incineration.

    Abstract translation: PCT No.PCT / FR95 / 00557 Sec。 371日期1997年5月20日 102(e)日期1997年5月20日PCT提交1995年4月28日PCT公布。 公开号WO95 / 29875 日期1995年11月9日,用于从含水流出物中回收重金属阳离子的试剂,包括硅酸盐或硅铝酸盐类化合物, 碱金属硅酸盐或硅铝酸盐,和碳酸盐型化合物,例如, 碱金属碳酸盐,优选载体如铺层。 该试剂也可形成阳离子稳定剂。 所述试剂可用于除去或稳定用于清洁废物焚烧,特别是家用垃圾和工业废物焚烧的烟道气的水中的重金属阳离子。

    High concentration colloidal dispersion of a cerium compound and a
process for its preparation
    5.
    发明授权
    High concentration colloidal dispersion of a cerium compound and a process for its preparation 失效
    铈化合物的高浓度胶态分散体及其制备方法

    公开(公告)号:US5733361A

    公开(公告)日:1998-03-31

    申请号:US527337

    申请日:1995-09-12

    Abstract: In a first embodiment, the present invention concerns a colloidal dispersion of a cerium compound, characterised in that it has a CeO.sub.2 concentration of between 500 and 700 g/l and a conductivity of at most 50 mS/cm. In a second embodiment, the colloidal dispersion is characterised in that it has a CeO.sub.2 concentration of more than 700 g/l. A process for the preparation of the dispersion of the invention is characterised in that a starting suspension or dispersion is treated by dialysis or with a cationic resin and an anionic resin. Colloidal dispersions of the invention can be used in automobile post combustion catalysis, in cosmetics, in lubrication, in ceramics or as an anticorrosion agent.

    Abstract translation: 在第一个实施方案中,本发明涉及铈化合物的胶态分散体,其特征在于其CeO 2浓度为500-700g / l,导电率为至多50mS / cm。 在第二个实施方案中,胶体分散体的特征在于其CeO 2浓度大于700g / l。 制备本发明分散体的方法的特征在于,通过透析或阳离子树脂和阴离子树脂处理起始悬浮液或分散体。 本发明的胶体分散体可用于汽车后燃烧催化,化妆品,润滑,陶瓷或防腐剂中。

    COLLOIDAL DISPERSION OF CALCIUM PHOSPHATE PLATELETS, AND ITS PROCESS OF PREPARATION
    6.
    发明申请
    COLLOIDAL DISPERSION OF CALCIUM PHOSPHATE PLATELETS, AND ITS PROCESS OF PREPARATION 有权
    磷酸钙片的胶体分散体及其制备方法

    公开(公告)号:US20110021685A1

    公开(公告)日:2011-01-27

    申请号:US12897333

    申请日:2010-10-04

    CPC classification number: C01B25/324 B01J13/0013 C01B25/32

    Abstract: The invention provides colloidal dispersions of calcium phosphate platelets comprising at least one polymer which complexes the calcium and in which the length of the platelets, L, is between 5 and 500 nm and in which the thickness of the platelets is between 0.5 and 20 nm.Another subject-matter of the invention is the calcium phosphate platelets obtained by drying the colloidal dispersion according to the invention.The invention also provides a process for preparing these colloidal dispersions of calcium phosphate platelets according to the invention.Finally, another subject-matter of the invention is the use of the abovementioned colloidal dispersions of platelets as food additive, reinforcing filler, thermal insulation filler, pharmaceutical excipient, polishing agent, building materials, additive for oral formulations, in particular dentifrices, or encapsulating agent.

    Abstract translation: 本发明提供磷酸钙血小板的胶体分散体,其包含至少一种与钙复合的聚合物,其中血小板的长度L在5至500nm之间,其中血小板的厚度在0.5至20nm之间。 本发明的另一主题是通过干燥根据本发明的胶体分散体获得的磷酸钙血小板。 本发明还提供了制备根据本发明的磷酸钙血小板的这些胶体分散体的方法。 最后,本发明的另一主题是使用上述血小板的胶体分散体作为食品添加剂,增强填料,绝热填料,药物赋形剂,抛光剂,建筑材料,用于口服制剂的添加剂,特别是牙粉或包封 代理商

    Dispersion of a rare earth phosphate, and a process for its preparation
    8.
    发明申请
    Dispersion of a rare earth phosphate, and a process for its preparation 失效
    稀土磷酸盐的分散体及其制备方法

    公开(公告)号:US20070117871A1

    公开(公告)日:2007-05-24

    申请号:US11638907

    申请日:2006-12-14

    CPC classification number: B01J13/0013 B01J13/0039 Y10S977/773

    Abstract: The invention concerns a colloidal dispersion of a phosphate of a rare earth and a process for its preparation. The dispersion is characterized in that it comprises anisotropic and disaggregated or disaggregatable particles of a phosphate of at least one rare earth and an anion of a monobasic acid, soluble in water and with a pKa of at least 2.5. It is prepared by a process in which a solution of a salt of at least one rare earth is mixed with phosphate ions while controlling the pH of the reaction medium to a value in the range 4 to 9 and in the presence of a monobasic acid, soluble in water and with a pKa of at least 2.5; the mixture obtained optionally undergoes a maturing step; the precipitate is then separated from the reaction medium; and said precipitate is then dispersed in water.

    Abstract translation: 本发明涉及稀土磷酸盐的胶态分散体及其制备方法。 分散体的特征在于其包含可溶于水并且pKa至少为2.5的至少一种稀土和一元酸的阴离子的各向异性和解聚或可分解的颗粒。 通过将至少一种稀土盐的溶液与磷酸根离子混合同时将反应介质的pH控制在4〜9的范围内并在一元酸的存在下, 溶于水,pKa至少为2.5; 获得的混合物任选经历熟化步骤; 然后将沉淀物与反应介质分离; 然后将所述沉淀物分散在水中。

Patent Agency Ranking