RECYCLING
    1.
    发明申请

    公开(公告)号:US20210039980A1

    公开(公告)日:2021-02-11

    申请号:US16967719

    申请日:2019-02-06

    Abstract: A method of recycling a composite material which comprises a mineral portion maintained within a thermoset resin, wherein the thermoset resin makes up at least 30 wt % of the composite material; and wherein the mineral portion makes up at least 30 wt % of the composite material comprises: introducing the composite material in granulated form into a mineral melt in a submerged combustion melter; providing additional heat energy to the mineral melt by combustion of the thermoset resin of the composite material within the mineral melt; and melting and incorporating the mineral portion of the composite material in the mineral melt by heat transfer from the mineral melt.

    MINERAL WOOL
    3.
    发明申请
    MINERAL WOOL 审中-公开

    公开(公告)号:US20200062639A1

    公开(公告)日:2020-02-27

    申请号:US16488276

    申请日:2018-02-23

    Abstract: A method of making mineral wool fibers comprising:30 to 55 wt %; SiO2, and 10 to 30 wt % Al2O3, and 4 to 14 wt % total iron expressed as Fe2O3, and either a) 20 to 35 wt % of the combination of CaO and MgO; and less than 8 wt % of the combination of Na2O and K2O; or b) 8 to 23 wt % of the combination of CaO and MgO; and 4 to 24 wt % of the combination of Na2O and K2O; comprises introducing mineral batch materials in to a melter, melting the mineral batch materials to provide a melt and fiberizing the melt to form the mineral wool fibers. The mineral batch materials introduced in to the melter comprise a first batch material comprising: 52 to 68 wt % SiO2, notably 52 to 62 wt % SiO2, and 12 to 30 wt % Al2O3, notably 12 to 16 wt % Al2O3, and 0 to 25 wt % CaO, notably 16 to 25 wt % CaO, and 0 to 12 wt % MgO, notably 0 to 5 wt % MgO, and 0 to 10 wt % B2O3, notably 0 to 2 wt % B2O3, and 0 to 2 wt % of the combination of Li2O+Na2O+K2O, and 0 to 1.5 wt % TiO2, and 0.05 to 1 wt % total iron expressed as Fe2O3, and 0 to 1 wt % fluoride.

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