Basic chromium aluminum sulfates and their preparation
    1.
    发明授权
    Basic chromium aluminum sulfates and their preparation 失效
    碱性硫酸铝及其制备方法

    公开(公告)号:US4629616A

    公开(公告)日:1986-12-16

    申请号:US589769

    申请日:1984-03-15

    摘要: The invention relates to basic chromium aluminum sulfates which are soluble in cold water and are of the general formulaCr.sub.x Al.sub.2-x (OH).sub.2 y. (SO.sub.4).sub.3-y.n H.sub.2 Owhere x is from 0.1 to 1.9, y is from 0.01 to 2 and n is from 4 to 24, and a process for the preparation thereof. The process comprises reacting chromium (III)--containing waste sulfuric acid having a water content of 20-50% by weight with aluminum oxide and/or aluminum oxide hydroxide and/or aluminum hydroxide at a temperature of 100.degree. to 200.degree. C. The molten product is converted to droplet form and allowed to solidify in free fall.

    摘要翻译: 本发明涉及可溶于冷水并具有通式Cr x Al 2-x(OH)2 y)的碱性铬酸铝硫酸盐。 (SO 4)3-y.nH 2 O,其中x为0.1至1.9,y为0.01至2,n为4至24,以及其制备方法。 该方法包括在100至200℃的温度下将含水量为20-50重量%的含铬(III)的废硫酸与氧化铝和/或氧化铝氢氧化物和/或氢氧化铝反应。 熔融产物转化为液滴形式,并在自由落体下固化。

    Yellow pigment containing bismuth vanadate and having the composition
BiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6
    2.
    发明授权
    Yellow pigment containing bismuth vanadate and having the composition BiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6 失效
    含有钒酸铋的黄色颜料,其组成为BiVO4.xBi2MoO6.yBi2WO6

    公开(公告)号:US4455174A

    公开(公告)日:1984-06-19

    申请号:US411864

    申请日:1982-08-26

    IPC分类号: C09C1/00

    摘要: Yellow pigments containing bismuth vanadate and having the compositionBiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6where x is from 0.6 to 2.25 and y is from 0 to 0.1, are prepared by a process in which a solution containing a bismuth(III) salt, a vanadate and a molybdate is acidified until the pH is

    摘要翻译: 含有钒酸铋并且具有组成BiVO4.xBi2MoO6.yBi2WO6的黄色颜料,其中x为0.6至2.25,y为0至0.1,通过其中含有铋(III)盐,钒酸盐和 将钼酸盐酸化直到pH <0,然后通过可能含有或可以不含有溶解钨的碱性溶液将酸性溶液的pH值在20℃至95℃下升至0.1-3.5( VI)化合物,将沉淀的产物和反应溶液在50至100℃下放置30至120分钟,然后彼此分离,并将产物洗涤,干燥并在300℃加热 至800℃

    Thermostable bismuth vanadate/molybdate pigments
    4.
    发明授权
    Thermostable bismuth vanadate/molybdate pigments 失效
    耐热稳定的钒酸铋/钼酸盐颜料

    公开(公告)号:US4851049A

    公开(公告)日:1989-07-25

    申请号:US130652

    申请日:1987-12-09

    摘要: Thermostable bismuth vanadate/molybdate pigments are prepared by precipitating onto a pigment, obtained by calcination, of the formulaBi VO.sub.4 .cndot.Bi.sub.2 Mo O.sub.6where n is 0.2-2.5, in aqueous suspension at 70.degree.-100.degree. C. within the pH range from 4 to 9.5 a first SiO.sub.2 -containing layer using an alkali metal silicate solution of a magnesium hexafluorosilicate solution, maintaining the suspension at 70.degree.-100.degree. C. for not less than 1 hour, producing a thick coating on the precoated pigment by adding further alkali metal silicate solution, magnesium hexafluorosilicate solution or a mixture of the two within the pH range from 4 to 9.5, and finally depositing wax on the SiO.sub.2 -containing layer by means of a waxing emulsion/dispersion, the products showing, compared with the starting pigment, an appreciably improved thermal stability in plastics.

    摘要翻译: 热稳定的钒酸铋/钼酸盐颜料通过在pH为4范围内,在70℃-100℃的水悬浮液中沉淀到通过煅烧获得的式Bi VO 4 .Bi 2 MoO 6(其中n为0.2-2.5)的颜料上制备 使用六氟硅酸镁溶液的碱金属硅酸盐溶液至9.5的第一含SiO 2层,将悬浮液保持在70℃-100℃下不少于1小时,通过加入另外的碱在预涂颜料上产生厚的涂层 金属硅酸盐溶液,六氟硅酸镁溶液或两者的混合物在pH范围为4至9.5之间,最后通过打蜡乳液/分散体将蜡沉积在含SiO 2的层上,与起始颜料相比,产物显示出来 ,塑料的热稳定性明显提高。

    Carbon-containing luster pigments
    10.
    发明授权
    Carbon-containing luster pigments 失效
    含碳光泽颜料

    公开(公告)号:US5501731A

    公开(公告)日:1996-03-26

    申请号:US266384

    申请日:1994-06-27

    摘要: Luster pigments comprising coated, plateletlike, silicatic substrates wherein the coating comprises a layer consisting essentially of carbon and aluminum oxide, chromium oxide, cerium oxide, zirconium oxide, antimony oxide or mixtures thereof, are obtainable by applying carbon-containing compounds of the metals aluminum, chromium, cerium, zirconium, antimony or mixtures thereof with or without further carbon-containing compounds of the molecular formula (CH.sub.2 O).sub.n, where n is from 1 to 6 for one monomeric unit, to the substrate particles and then thermally decomposing the carbon-containing compounds on the surface of the substrate particles under oxygen-excluding conditions.

    摘要翻译: 包含涂覆的,片状的,硅基底物的光泽颜料,其中涂层包含基本上由碳和氧化铝,氧化铬,氧化铈,氧化锆,氧化锑或其混合物组成的层,可通过将含金属的化合物铝 ,铬,铈,锆,锑或其混合物与另外含有分子式(CH 2 O)n的含碳化合物(其中n为1个单体单元为1至6个)与基质颗粒反应,然后热分解碳 在氧排除条件下,在基体颗粒的表面上含有化合物。