公开(公告)号：US5186748A

公开(公告)日：1993-02-16

申请号：US845517

申请日：1992-02-27

申请人： Leonardus J. H. Erkens ,  Gregor Schmitt ,  Herman J. J. M Geurts ,  Werner F. C. G. Corvers

发明人： Leonardus J. H. Erkens ,  Gregor Schmitt ,  Herman J. J. M Geurts ,  Werner F. C. G. Corvers

IPC分类号： C01G31/00 ,  C01G39/00 ,  C01G41/00 ,  C09C1/00 ,  C09D7/12

CPC分类号： C01G39/006 ,  C01G31/006 ,  C01G41/006 ,  C09C1/0006 ,  C09D7/1216 ,  C09D7/1225 ,  C01P2002/50 ,  C01P2002/72 ,  C01P2004/20 ,  C01P2006/60 ,  C01P2006/80 ,  C01P2006/90 ,  C08K3/0033 ,  C08K3/0091

摘要： An improved process for the preparation of bismuth vanadate pigments and solid solutions based on bismuth vanadate by a) mixing a solution of a bismuth (III) salt containing, if required, one or more further metal salts or a mixture thereof with the aqueous solution of a vanadate salt containing, if required, a molybdate, tungstate or sulfate salt or a mixture thereof and b) subjecting the suspension thus obtained to a subsequent aftertreatment to convert the particles first precipitated in amorphous form into crystalline compounds, wherein during the mixing and/or during the subsequent aftertreatment step fluoride ions are used.

摘要翻译： 一种用于制备钒酸铋颜料和基于钒酸铋的固溶体的改进方法，其通过以下步骤：将含有如果需要的一种或多种其它金属盐或其混合物的铋（III）盐的混合物与 含有钼酸盐，钨酸盐或硫酸盐或其混合物的钒酸盐盐，以及b）将如此获得的悬浮液进行后续后处理，将先后沉淀的无定形颗粒转化为结晶化合物，其中在混合和/ 或在随后的后处理步骤中，使用氟离子。

公开(公告)号：US4921541A

公开(公告)日：1990-05-01

申请号：US198268

申请日：1988-05-25

申请人： Leonardus J. H. Erkens ,  Herman J. J. M. Geurta ,  Jean L. G. M. Vandevenne ,  Gerben P. Algra

发明人： Leonardus J. H. Erkens ,  Herman J. J. M. Geurta ,  Jean L. G. M. Vandevenne ,  Gerben P. Algra

IPC分类号： C09C1/20

CPC分类号： C09C1/20 ,  C01P2006/60

摘要： Orthorhombic greenish-tinged lead chromate pigments containing lead chromate and lead sulfate in a weight ratio of 91:9 to 100:0 and distinguished by a tinctorial strength of 0.053 to 0.066 at a standard depth of color of 1/25 in accordance with DIN 53235 are obtainable by mixing an aqueous solution of a lead salt with an aqueous solution of a chromate and, if necessary, of a sulfate under high turbulence in the presence of an aluminium salt and in the absence of zinc salts.

摘要翻译： 正交菱形绿色铅铬酸盐颜料，含有铬酸铅和硫酸铅，重量比为91:9至100：0，并以标准颜色为1/25的颜色，根据DIN 53235的着色强度为0.053至0.066 可以通过在铝盐的存在下和不存在锌盐的情况下将铅盐的水溶液与铬酸盐的水溶液和必要时的高湍流下的硫酸盐混合来获得。

公开(公告)号：US5123965A

公开(公告)日：1992-06-23

申请号：US616556

申请日：1990-11-21

申请人： Fritz Herren ,  Leonardus J. H. Erkens

发明人： Fritz Herren ,  Leonardus J. H. Erkens

IPC分类号： C08K3/00 ,  C09C1/00 ,  C09D7/12 ,  C09D11/03

CPC分类号： C09D11/03 ,  C09C1/0006 ,  C09D7/1225 ,  C01P2006/60 ,  C01P2006/80 ,  C08K3/0033 ,  C08K9/02

摘要： A process for stabilizing bismuth vanadate pigments against attack by hydrochloric acid by treating said pigments with a metal phosphate, which process comprises treating an aqueous suspension of a bismuth vanadate pigment with 2-20% by weight, based on said pigment, of an orthophosphate selected from the group consisting of calcium, magnesium, aluminium, zirconium and titanium orthophosphate, of a mixture of such orthophosphates with one another or of such orthophosphates with zinc orthophosphate, with stirring, in the temperature range from 20.degree. to 100.degree. C. and in the pH range from 2 to 8, which orthophosphate is precipitated in situ from the appropriate metal salt of a strong mineral acid and orthophosphoric acid or from an alkali metal salt thereof, and isolating the resultant product by conventional methods.The pigments so obtained have excellent resistance to hydrochloric acid.

摘要翻译： 一种通过用金属磷酸盐处理所述颜料来稳定钒酸铋颜料以防止盐酸侵蚀的方法，该方法包括用选自正磷酸盐的2-20重量％的基于所述颜料的2-20重量％的钒酸铋颜料颜料的水性悬浮液 由正磷酸钙，镁，铝，锆和钛组成的组，这些正磷酸盐彼此或这些正磷酸盐与正磷酸锌的混合物在搅拌下在20℃至100℃的温度范围内 pH范围为2至8，其中正磷酸盐由强无机酸和正磷酸的合适金属盐或其碱金属盐原位沉淀，并通过常规方法分离得到的产物。 如此获得的颜料具有优异的耐盐酸性。

公开(公告)号：US5007963A

公开(公告)日：1991-04-16

申请号：US259083

申请日：1988-10-17

申请人： Leonardus J. H. Erkens ,  Gerben P. Algra ,  Herman J. J. M. Geurts ,  Hubertus P. A. Gielkens

发明人： Leonardus J. H. Erkens ,  Gerben P. Algra ,  Herman J. J. M. Geurts ,  Hubertus P. A. Gielkens

IPC分类号： C09C1/14

CPC分类号： C09C1/14 ,  C01P2006/60

摘要： A process for the preparation of lead molybdate pigments containing lead chromate, lead sulfate and lead molybdate, which comprises preparing the lead molybdate pigments by reacting an aqueous solution of a lead salt with an aqueous solution containing chromate, molybdate and sulfate salts or with an aqueous solution of each of said salts using 2 to 5 mol % of lead molybdate seed crystals, based on the total molar amount of lead chromate, lead sulfate and lead molybdate. The lead molybdate pigments so obtained are strong and are highly suitable for coloring organic materials of high molecular weight.

摘要翻译： 一种用于制备含铬酸铅，硫酸铅和钼酸铅的钼酸铅颜料的方法，其包括通过使铅盐的水溶液与含有铬酸盐，钼酸盐和硫酸盐的水溶液或水溶液 基于铬酸铅，硫酸铅和钼酸铅的总摩尔量，使用2〜5摩尔％的钼酸铅晶种，每种所述盐的溶液。 所得的钼酸铅颜料很强，适用于高分子量有机材料的着色。

公开(公告)号：US4872915A

公开(公告)日：1989-10-10

申请号：US22617

申请日：1987-03-03

申请人： Leonardus J. H. Erkens ,  Gerben P. Algra ,  Jacobus M. H. Snijders ,  Herman J. J. M. Geurts ,  Andre Pugin

发明人： Leonardus J. H. Erkens ,  Gerben P. Algra ,  Jacobus M. H. Snijders ,  Herman J. J. M. Geurts ,  Andre Pugin

IPC分类号： C09C1/20

CPC分类号： C09C1/20 ,  C01P2004/84 ,  C01P2006/60

摘要： The invention relates to orthorhombic lead chromate pigments of greenish hue, which contain lead chromate and lead sulfate in the weight ratio of 60:40 to 100:0, and which are characterized by a tinctorial strength of 0.067 to 0.103 at a standard depth of shade of 1/25 in accordance with DIN 53 235 and by an opacity factor Y.sub.black /Y.sub.white of 0.78 to 0.87. These pigments are obtainable by mixing an aqueous solution of a chromate and, if necessary, of a sulfate, under high turbulence.

摘要翻译： 本发明涉及绿色色调的斜方铅铬酸盐颜料，其含有铬酸铅和硫酸铅，重量比为60:40至100：0，其特征在于在标准深度下的着色强度为0.067至0.103 根据DIN 53 235的1/25，透明度因子Yblack / Ywhite为0.78至0.87。 这些颜料可以通过在高湍流下混合铬酸盐的水溶液和必要时混合硫酸盐而获得。