ZIRCONIA BASED OPACIFIERS
    92.
    发明公开
    ZIRCONIA BASED OPACIFIERS 失效
    UNDURCHSICHTIGKEITSMITTEL AUF BASIS VON ZIRCONIA

    公开(公告)号:EP0708742A4

    公开(公告)日:1997-05-28

    申请号:EP94919513

    申请日:1994-06-30

    CPC classification number: C03C1/04

    Abstract: PCT No. PCT/AU94/00366 Sec. 371 Date Jul. 9, 1996 Sec. 102(e) Date Jul. 9, 1996 PCT Filed Jun. 30, 1994 PCT Pub. No. WO95/01313 PCT Pub. Date Jan. 12, 1995A process for producing a zirconia beating opacifier is disclosed. The process comprising the steps of: (I) heat treatment of a zirconia bearing material comprising heating the zirconia bearing material in the presence of an additive to form a heat modified product having one or more phases which, when incorporated in a glaze and the glaze fired, exhibit opacifying characteristics; and (ii) cooling the heat modified product to produce a product which can be used for imparting opacity.

    Abstract translation: 公开了生产氧化锆轴承遮光剂的方法。 该方法包括以下步骤:(i)热处理含氧化锆的材料,包括在存在添加剂的情况下加热含氧化锆的材料以形成具有一个或多个相的热改性产物,当将其加入釉料和釉料中时 被解雇,展现不透明的特征; 和(ii)冷却该热改性产品以产生可用于赋予不透明性的产品。

    FOREHEARTH
    100.
    发明公开
    FOREHEARTH 有权
    供料槽

    公开(公告)号:EP1888791A4

    公开(公告)日:2008-12-03

    申请号:EP06721425

    申请日:2006-04-26

    Abstract: A direct smelting vessel (3) for operating a molten bath-based direct smelting process under pressure conditions in the vessel is disclosed. The vessel includes a forehearth (67) for tapping molten metal continuously from the vessel. The forehearth includes an open connection (97) that extends through a side wall of the vessel into the interior of the vessel. The open connection is formed to dampen the impact of sudden changes in pressure in the vessel on molten metal flow in the forehearth that could result in an undesirable surge of molten metal from the forehearth. The open connection is also formed so that molten metal does not freeze in the connection for at least 6 hours when molten metal is not being discharged from the vessel into the forehearth via the open connection.

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