公开(公告)号：US20020040665A1

公开(公告)日：2002-04-11

申请号：US09971496

申请日：2001-10-05

申请人： Clariant GmbH

发明人： Erwin Dietz ,  Joachim Weber ,  Dieter Schnaitmann ,  Christian Wille ,  Leonhard Unverdorben ,  Klaus Brychcy

IPC分类号： C09B067/12 ,  C09B067/50 ,  C09B067/10

CPC分类号： C09B67/0017 ,  C09B67/0001

摘要： The invention provides a process for the fine division of pigments which comprises dissolving coarsely crystalline crude pigments in a solvent and precipitating them with a liquid precipitation medium by spraying the pigment solution and the precipitation medium through nozzles to a point of conjoint collision in a reactor chamber enclosed by a housing in a microjet reactor, a gas or an evaporating liquid being passed into the reactor chamber through an opening in the housing for the purpose of maintaining a gas atmosphere in the reactor chamber, and the resulting pigment suspension and the gas or the evaporated liquid being removed from the reactor through a further opening in the housing by means of overpressure on the gas entry side or underpressure on the product and gas exit side.

摘要翻译： 本发明提供了一种颜料细分的方法，其包括将粗结晶粗颜料溶解在溶剂中并通过将颜料溶液和沉淀介质通过喷嘴喷射到反应器室中的共同碰撞点而用液体沉淀介质沉淀 由壳体包围在微喷射反应器中，气体或蒸发液体通过壳体中的开口进入反应室，用于保持反应器室中的气体气氛，并且所得颜料悬浮液和气体或 蒸发的液体通过气体入口侧的过压或产品和气体出口侧的负压通过壳体中的另外的开口从反应器中除去。