Method of purifying alkoxysilanes
    81.
    发明授权
    Method of purifying alkoxysilanes 失效
    烷氧基硅烷的纯化方法

    公开(公告)号:US5260470A

    公开(公告)日:1993-11-09

    申请号:US939470

    申请日:1992-09-02

    IPC分类号: C07F7/18 C07F7/20 C07F7/08

    CPC分类号: C07F7/20

    摘要: A method of purifying alkoxysilanes contaminated by organosilicon compounds with hydrolyzable chlorine atoms is disclosed wherein the alkoxysilanes are reacted in a pressure reactor with an alcohol, preferably in the presence of an HCl acceptor, at a temperature of 5.degree. C. to 160.degree. C. above the boiling point of the alcohol used and at the pressure which develops in the reactor.

    摘要翻译: 公开了一种纯化有机硅化合物被可水解氯原子污染的烷氧基硅烷的方法,其中烷氧基硅烷在压力反应器中与醇反应,优选在HCl受体存在下,在5℃至160℃的温度下反应。 高于所用醇的沸点和反应器中产生的压力。

    Method for making grey-black inclusion pigments
    83.
    发明授权
    Method for making grey-black inclusion pigments 失效
    制备灰黑色夹杂物颜料的方法

    公开(公告)号:US5205866A

    公开(公告)日:1993-04-27

    申请号:US857074

    申请日:1992-03-12

    IPC分类号: C09C1/00

    摘要: Gray-black inclusion pigments are made using zirconium silicate as the encasing substance and carbon black particles as the inclusion phase by annealing a mixture of zirconium dioxide, a source for silicon dioxide, carbon black and mineralizers under reducing conditions at 900.degree.-1400.degree. C. The process uses zeolites with an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of more than 4, preferably more than 10, as the SiO.sub.2 source. The depth of the color can be increased by also using an adhesion agent, especially silicon oil. The use of the zeolites facilities the employment of different zirconium dioxide qualities and permits the production of pigments with higher carbon black inclusion rates.

    摘要翻译: 灰黑色夹杂物颜料是通过在900-114℃的还原条件下退火二氧化锆,二氧化硅源,炭黑和矿化剂的混合物,使用硅酸锆作为包裹物质和炭黑颗粒作为夹杂相来制备的。 该方法使用SiO 2 / Al 2 O 3摩尔比大于4,优选大于10的SiO 2源的沸石。 也可以通过使用粘合剂,特别是硅油来增加颜色的深度。 使用沸石设备使用不同的二氧化锆质量,并允许生产具有较高碳黑夹杂率的颜料。

    Brown to gray inclusion pigments and method of their production
    85.
    发明授权
    Brown to gray inclusion pigments and method of their production 失效
    棕色至灰色夹杂物颜料及其生产方法

    公开(公告)号:US5043016A

    公开(公告)日:1991-08-27

    申请号:US634487

    申请日:1990-12-27

    摘要: The invention relates to new brown to gray inclusion pigments, based on zirconium silicate as casing substance, which are characterized in that they contain mixed crystals of the type (Fe.sub.1-x Mn.sub.x).sub.2 O.sub.3, in which x stands for a number in the range from 0.05 to 0.60, as colored compounds. The production takes place by means of annealing a mixture of SiO.sub.2 and ZrO.sub.2, or of precursors, in the presence of iron compounds and manganese compounds, in an Fe/Mn atomic ratio of 90:10 to 20:80, and mineralizers at 750.degree. to 1200.degree. C. The brown pigments are formed especially at temperatures of 850.degree. to 1000.degree. C. and if x is between 0.05 and 0.20. The gray pigments are formed especially at 1050.degree. to 1200.degree. C. and if x is 0.30 to 0.60.

    摘要翻译: 本发明涉及基于硅酸锆作为外壳物质的新型棕色至灰色夹杂物,其特征在于它们含有(Fe1-xMnx)2O3型混合晶体,其中x代表0.05 至0.60,作为有色化合物。 通过在铁化合物和锰化合物的存在下以30:10至20:80的Fe / Mn原子比和750℃的矿化剂退火SiO 2和ZrO 2或前体的混合物进行生产。 至1200℃。褐色颜料特别是在850℃至1000℃的温度下形成,如果x在0.05至0.20之间。 特别是在1050℃〜1200℃,如果x为0.30〜0.60,则形成灰色颜料。

    Grayish-black encapsulated pigments and method of their production
    87.
    发明授权
    Grayish-black encapsulated pigments and method of their production 失效
    灰黑色胶囊颜料及其制作方法

    公开(公告)号:US5008223A

    公开(公告)日:1991-04-16

    申请号:US487295

    申请日:1990-03-02

    摘要: The grayish-black encapsulated pigments contain carbon black particles with specific surface areas of 10 to 1000 m.sup.2 /g (BET) encapsulated in colorless crystals of zirconium silicate. In order to produce the pigments, mixtures of zirconium oxide with a particle size distribution (D50 values) between 7 and 10 .mu.m and a spec. surface between 2 and 4 m.sup.2 /g, silicon oxide, carbon black and mineralizers are heated under reducing conditions to 900.degree. to 1400.degree. C. and calcined for 0.5 to 8 hours and recalcined under oxidizing conditions to remove the non-included carbon black. The encapsulated pigments of the invention are suitable for the pigmented coloration of glazes.

    摘要翻译: 灰黑色胶囊状颜料含有炭黑颗粒,其表面积为10至1000m2 / g(BET),其包封在无色硅酸锆晶体中。 为了制备颜料,氧化锆的混合物的粒度分布(D50值)在7和10μm之间, 表面积为2〜4m2 / g,氧化硅,炭黑和矿化剂在还原条件下加热至900〜1400℃,煅烧0.5〜8小时,在氧化条件下重新煅烧,除去未包含的炭黑。 本发明的胶囊化颜料适用于釉料着色着色。