VERFAHREN ZUR VERWERTUNG VON BRAUNKOHLENFLUGASCHE
    3.
    发明授权
    VERFAHREN ZUR VERWERTUNG VON BRAUNKOHLENFLUGASCHE 失效
    PROCESS恢复BROWN粉煤灰。

    公开(公告)号:EP0615518B1

    公开(公告)日:1995-07-05

    申请号:EP92924649.4

    申请日:1992-12-02

    发明人: KOSLOWSKI, Thomas

    IPC分类号: C04B18/06

    摘要: The invention relates to a method of processing lignite fly-ash, especially dry electro-filter ash, to provide building materials in which firstly a coarse fraction with a lower grain-size limit of over approx. 500 νm is mechanically separated, the remaining fraction with an upper grain-size limit of under approx. 500 νm as such or its finest fraction with particles with a grain-size of under approx. 100 νm which is mechanically separated from a fine fraction essentially containing fine quartz sand is used to make brickyard products while the fine fraction is used in production of building materials requiring quartz sand, whereby at least the major portion of the coal, coke and wood particles is mechanically removed from the fractions thus used.