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    PROCESS FOR CALCINING CARBONATED MINERAL STONES IN AN ANNULAR VERTICAL KILN AND IMPLEMENTED KILN
    73.
    发明公开
    PROCESS FOR CALCINING CARBONATED MINERAL STONES IN AN ANNULAR VERTICAL KILN AND IMPLEMENTED KILN 审中-公开

    公开(公告)号：EP4394295A1

    公开(公告)日：2024-07-03

    申请号：EP22217322.1

    申请日：2022-12-30

    申请人： S.A. LHOIST RECHERCHE ET DEVELOPPEMENT

    发明人： HABIB, Ziad ,  VAN CANTFORT, Olivier ,  CLOAREC, Tristan

    IPC分类号： F27B1/00 ,  F27B1/08 ,  F27D17/00 ,  F27D99/00 ,  C04B2/08 ,  C04B2/12

    CPC分类号： F27B1/005 ,  F27B1/08 ,  F27D99/0006 ,  F27D2099/003120130101 ,  F27D17/004 ,  C04B2/08 ,  C04B2/12

    摘要： Annular shaft kiln for calcining carbonated mineral stones, comprising an outer cylinder (1), and an inner cylinder (2), forming an annular space (3) with the outer cylinder (1), said kiln further comprising an external recirculation circuit which is arranged outside of the kiln between a removal duct (9) and lower gas injection means (7), and which comprises a separation body (28) for taking off a fraction of gaseous effluent from said removal duct (9), and separating means (13) which are able to divide in parts the taken off fraction of said gaseous effluent, at least one external furnace equipped with at least one plasma torch (14) for heating a gas and with, as lower gas injection means, at least one lower mixing chamber (15) wherein the heated gas is mixed with a control gas which has not been heated by the at least one torch, for providing a gaseous mixture having a controlled temperature equal or higher than the temperature of calcination of the loaded mineral stones, and gas outlet means (18) for extracting from the inner cylinder (2) a gaseous stream containing the heated cooling air and removing it outside the kiln.

    COMPOSITIONS DE CHAUX ETEINTE ET LEUR PROCEDE DE FABRICATION
    78.
    发明公开
    COMPOSITIONS DE CHAUX ETEINTE ET LEUR PROCEDE DE FABRICATION 审中-公开
    组合物DE CHAUX ETEINTE ET LEUR PROCEDE DE FABRICATION

    公开(公告)号：EP3191424A1

    公开(公告)日：2017-07-19

    申请号：EP09752144.7

    申请日：2009-10-29

    申请人： S.A. LHOIST RECHERCHE ET DEVELOPPEMENT

    发明人： GROSS-LORGOUILLOUX, Marion ,  BLANDIN, Gaétan ,  CHOPIN, Thierry

    IPC分类号： C04B2/06 ,  C01F11/02

    CPC分类号： C04B2/06 ,  C01F11/02 ,  C01P2004/03 ,  C01P2004/20 ,  C01P2004/22 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/80 ,  Y10T428/2982

    摘要： The invention relates to a slaked lime composition containing Ca(OH)
    2 particles of platelet crystalline morphology, called platelets, said platelets having a diameter D, this being the diameter of the circle circumscribing the platelet, a thickness e and an aspect ratio given by the ratio of said diameter of the platelet-circumscribing circle to said thickness, said composition having a platelet content of between 50 and 100% relative to the sum of the Ca(OH)
    2 particles and said aspect ratio being between 10 and 300, and to its manufacturing process.

    摘要翻译： 本发明涉及含有称为血小板的Ca（OH）2血小板结晶形态的消石灰组合物，所述血小板具有直径D，这是包围血小板的圆的直径，厚度e和长宽比由 所述血小板外接圆的所述直径与所述厚度的比率，所述组合物具有相对于所述Ca（OH）2颗粒的总和在50和100％之间的血小板含量，并且所述纵横比在10和300之间，以及 到其制造过程。