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    PROCESSES AND APPARATUS FOR REACTING GASEOUS REACTANTS CONTAINING SOLID PARTICLES
    1.
    发明授权
    PROCESSES AND APPARATUS FOR REACTING GASEOUS REACTANTS CONTAINING SOLID PARTICLES 有权
    气态的方法和装置，实体ENTHALDENDE反应物反应带来

    公开(公告)号：EP1228002B1

    公开(公告)日：2011-02-02

    申请号：EP00953679.8

    申请日：2000-07-26

    申请人： Tronox LLC

    发明人： YUILL, William, A. ,  NATALIE, Chuck, A.

    IPC分类号： C01G23/07 ,  B01J19/24

    CPC分类号： B01J4/001 ,  B01J12/02 ,  B01J19/2405 ,  B01J19/2415 ,  B01J2219/00094 ,  B01J2219/00155 ,  B01J2219/00159 ,  B01J2219/00164 ,  C01G23/07

    摘要： The present invention provides improved processes and apparatus (12, 14) for reacting high flow rates of one or more gaseous reactants in tubular reactors (19). The improved processes and apparatus (12, 14) allow such reactions to be carried out with a low pressure drop across reactor (19) without excessive erosion due to solid particles carried with or picked up by the gaseous reactants. A process of this invention is basically comprised of the steps of swirling a gaseous reactant which may contain or pick up solid particles in a first annualar plenum chamber (36) followed by a second larger diameter annular plenum chamber (46) and then introducing the gaseous reactant and solid particles into a reactor (19) by way of two or more radial slots (59) whereby said gaseous reactant and solid particles are caused to flow into said reactor (19) and are uniformly distributed therein.

    PROCESS FOR PRODUCING AND COOLING TITANIUM DIOXIDE
    2.
    发明授权
    PROCESS FOR PRODUCING AND COOLING TITANIUM DIOXIDE 无效
    用于生产二氧化钛的冷却

    公开(公告)号：EP1326804B1

    公开(公告)日：2011-01-19

    申请号：EP01975754.1

    申请日：2001-09-17

    申请人： Tronox LLC

    发明人： YUILL, William, A. ,  NATALIE, Charles, A. ,  FLYNN, Harry, E. ,  FILLIPI, Bita

    IPC分类号： C01G23/047 ,  C01G23/07 ,  F28D7/04

    CPC分类号： C01G23/075 ,  C01G23/07 ,  C01P2006/60

    摘要： An improved process for producing titanium dioxide wherein gaseous titanium tetrachloride and oxygen are reacted at a high temperature to produce particulate solid titanium dioxide and gaseous reaction products is provided. The titanium dioxide and gaseous reaction products are cooled by passing them through a tubular heat exchanger along with a scouring medium for removing deposits from the inside surfaces of the tubular heat exchange. By this invention, the particulate scouring medium, the particulate titanium dioxide and the gaseous reaction products are caused to follow a spiral path as they flow through the tubular heat exchanger whereby the scouring medium more thoroughly removes the deposits and the titanium dioxide and gaseous reaction products are cooled more efficiently.