Process for manufacturing titanium dioxide pigment
    5.
    发明申请
    Process for manufacturing titanium dioxide pigment 审中-公开
    制造二氧化钛颜料的方法

    公开(公告)号:US20080110373A1

    公开(公告)日:2008-05-15

    申请号:US11983345

    申请日:2007-11-08

    IPC分类号: C09C1/36

    CPC分类号: C09C1/3623 C01P2006/22

    摘要: A process is described for manufacturing a titanium dioxide pigment, comprising the steps of a) preparing an aqueous, high solids slurry by gathering materials including crude titanium dioxide from the oxidation of titanium tetrachloride, a dispersant and water and then mixing the gathered materials to form an about 50 to about 70 weight percent slurry of the crude titanium dioxide solids in water, b) diluting the aqueous, high solids slurry by adding a further amount of water to the high solids slurry with mixing, the resultant, lesser solids slurry still containing at least about 50 percent by weight of crude titanium dioxide solids, c) media-milling the resultant aqueous, lesser solids slurry, d) recovering the media-milled, crude titanium dioxide product and e) finishing the media-milled, crude titanium dioxide product to produce a finished titanium dioxide pigment product.

    摘要翻译: 描述了一种用于制造二氧化钛颜料的方法,包括以下步骤:a)通过收集来自四氯化钛的氧化的粗二氧化钛,分散剂和水,然后将收集的材料混合形成,从而制备含水的高固含量浆料 大约50至大约70重量%的粗二氧化钛固体在水中的浆料,b)通过在混合下向高固体浆料中加入另外量的水来稀释含水高固体浆料,所得到的较小固体浆料仍含有 至少约50重量%的粗二氧化钛固体,c)介质研磨所得水性较小固体的浆料,d)回收培养基研磨的粗制二氧化钛产品,以及e)对培养基研磨的粗制二氧化钛 产品生产成品二氧化钛颜料产品。