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1.发明授权PROCEDE DE PREPARATION DE PIGMENTS A BASE DE VANADATE DE BISMUTH TRES COLORANTS ET PURS 失效用于生产非常干净和着色WISMUTVANADATPIGMENTEN
公开(公告)号：EP0650509B1
公开(公告)日：1996-09-18
申请号：EP93912489.7
申请日：1993-07-08
CPC分类号： C09C1/0006 , C01G31/00 , C01P2006/60 , C01P2006/62 , C01P2006/65 , C01P2006/66 , Y10T428/2991
摘要： A method for preparing a bismuth vanadate based pigment by (1) reacting an acidic bismuth nitrate solution with an alkaline ammonium metavanadate solution and optionally with other salts, to form a bismuth vanadate based precipitate in a highly acidic reaction medium with a pH of 1-2; (2) adding a base until the pH of the reaction medium is around 7; (3) raising the temperature to over 80 °C in around 30 minutes while holding the pH at 7 by means of a base; (4) stirring for 30 minutes to over 2 hours until the pH is around 6.5; and (5) filtering, washing and drying the pigment. The resulting products and their use in dyeing paints, lacquers and/or plastics are also disclosed.
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2.发明授权
公开(公告)号：EP0519951B1
公开(公告)日：1994-05-11
申请号：EP91905293.6
申请日：1991-03-14
发明人： VERMOORTELE, Frank , MAYER, Jean
IPC分类号： C09B67/00
CPC分类号： C09B67/0014
摘要： The invention relates to an organic pigment, preferably an azoic pigment, characterized in that it has been treated with polyalkylene imine with a view to improving its characteristics when used in painting. This treatment can be carried out both on an organic pigment treated by known methods and on an untreated pigment. A treated pigment is generally preferred, however, particularly if maximum opacity is desired.
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3.发明公开PIGMENTS JAUNES A BASE DE PHOSPHOVANADATE DE BISMUTH ET/OU DE SILICOVANADATE DE BISMUTH ET PROCEDES POUR LES PREPARER 失效基于对ITS铋磷钒酸盐和/或铋SILICOVANADATE和方法黄色颜料。
公开(公告)号：EP0516800A1
公开(公告)日：1992-12-09
申请号：EP92901953.0
申请日：1991-12-17
CPC分类号： C09C3/063 , C01P2006/60 , C09C1/0006 , C09C1/28
摘要： Pigments minéraux jaunes à base de vanadate de bismuth caractérisés en ce qu'ils répondent à la formule chimique suivante: Bia Lb Mc Nd O4 dans laquelle L est Si ou simultanément Si et un ou plusieurs éléments choisis parmi Ti, Ge, ou Zr; ou encore simultanément Si et un ou plusieurs éléments choisis parmi Ti, Ge ou Zr et un ou plusieurs éléments du groupe IIIa; M est V, ou simultanément V et un des éléments choisis parmi le groupe Vb; N est Mo ou W; a variant de 1 à 4/3 et b, c et d variant de 0 à 1; avec la condition que c est supérieur à 0.
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4.发明公开PROCEDE DE PREPARATION DE PIGMENTS A BASE DE VANADATE DE BISMUTH TRES COLORANTS ET PURS 失效用于生产非常干净和着色WISMUTVANADATPIGMENTEN。
公开(公告)号：EP0650509A1
公开(公告)日：1995-05-03
申请号：EP93912489.0
申请日：1993-07-08
CPC分类号： C09C1/0006 , C01G31/00 , C01P2006/60 , C01P2006/62 , C01P2006/65 , C01P2006/66 , Y10T428/2991
摘要： A method for preparing a bismuth vanadate based pigment by (1) reacting an acidic bismuth nitrate solution with an alkaline ammonium metavanadate solution and optionally with other salts, to form a bismuth vanadate based precipitate in a highly acidic reaction medium with a pH of 1-2; (2) adding a base until the pH of the reaction medium is around 7; (3) raising the temperature to over 80 C in around 30 minutes while holding the pH at 7 by means of a base; (4) stirring for 30 minutes to over 2 hours until the pH is around 6.5; and (5) filtering, washing and drying the pigment. The resulting products and their use in dyeing paints, lacquers and/or plastics are also disclosed.
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