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    • 3. 发明授权
    • Grinding of pigments
    • 研磨颜料
    • US4196016A
    • 1980-04-01
    • US856175
    • 1977-11-30
    • Eric Simon
    • Eric Simon
    • C09B67/00C09B47/04
    • C09B67/0022C09B67/0001
    • A method of salt grinding pigments wherein the material to be ground is milled with an inorganic salt, an organic conditioner, and larger particles such as balls or nails for comminuting the pigment to the desired state of subdivision and is subsequently recovered from the ground mass wherein the mass is treated after grinding with an organic liquid which is a solvent for the organic conditioner but which is inert to the pigment and to the inorganic grinding aid. The dispersion resulting is then centrifuged to remove solids constituting over-size pigment and inorganic grinding aid without separating the dispersed pigment particles of desired state of subdivision. The sediment is removed from the liquid dispersion of pigments and the liquid is subsequently separated from the dispersed pigment as by filtering or other appropriate means. The conditioner is separated from the liquid solvent by distillation and is returned to a succeeding batch of material along with the over-sized pigment and inorganic grinding aid.
    • 一种盐研磨颜料的方法,其中待研磨材料用无机盐,有机调理剂和较大颗粒如球或钉磨碎,以将粉末粉碎至所需的细分状态,随后从研磨物质中回收,其中 在用有机调理剂的溶剂的有机液体研磨后,对颜料和无机研磨助剂是惰性的。 然后将得到的分散体离心以除去构成超大量颜料和无机研磨助剂的固体,而不分离所需分散状态的分散的颜料颗粒。 从颜料的液体分散体中除去沉淀物,然后通过过滤或其它合适的方法将液体与分散的颜料分离。 调理剂通过蒸馏与液体溶剂分离,并与超大尺寸颜料和无机助磨剂一起返回到后续批次的材料。