2.
    发明专利
    未知

    公开(公告)号:AT272572T

    公开(公告)日:2004-08-15

    申请号:AT01990443

    申请日:2001-11-27

    Applicant: DEGUSSA

    Abstract: A process is provided for the safe storage of sodium percarbonate in a bulk container that is substantially closed to the ambient atmosphere. A temperature is measured at at least one position inside the sodium percarbonate stored in bulk and, with an increase in temperature within the range of 0.5 to 10° C. per day, in particular 1 to 5° C. per day, dry air is passed periodically or continuously through the bulk material until the increase in temperature has fallen to a value of less than 1° C. per day in particular less than 0.5° C. per day.

    СПОСОБ ПОЛУЧЕНИЯ ГРАНУЛИРОВАННОГО ПЕРКАРБОНАТА НАТРИЯ

    公开(公告)号:UA94287C2

    公开(公告)日:2011-04-26

    申请号:UAA200903666

    申请日:2007-07-17

    Abstract: Изобретениеотноситсяк способуполучениягранулированногоперкарбонатанатрияпутемгрануляциив псевдоразряженномслое, содержащемчастицыперкарбонатанатрия, вкоторыйчерез, поменьшеймере, однумногокомпонентнуюфорсункус внешнимсмешиваниемраспыляютводныйрастворпероксидаводородаи водныйрастворкарбонатанатрияприодновременномиспаренииводы; причемрастворкарбонатанатриядополнительновключаеткарбонатнатрияи/илиперкарбонатнатрияв суспендированномвиде, апередподачейв многокомпонентнуюфорсункуегопропускаютчерездиспергатордлядиспергированиятвердыхвеществ.

    METHOD FOR PRODUCTION OF GRANULAR SODIUM PERCARBONATE

    公开(公告)号:CA2664273A1

    公开(公告)日:2008-04-03

    申请号:CA2664273

    申请日:2007-07-17

    Abstract: The method for production of granular sodium percarbonate by fluid bed fo rmation granulation, includes spraying an aqueous solution of hydrogen perox ide and an aqueous solution of sodium carbonate by means of at least one mul ti-component nozzle with external mixing in a fluid bed, containing sodium p ercarbonate particles with simultaneous evaporation of water and is characte rised in that the solution of sodium carbonate contains additional sodium ca rbonate and/or sodium percarbonate in suspended form which is supplied to a dispersion device for dispersing solids before introduction to the multicomp onent nozzles. The method permits the avoidance of blockages in the multicom ponent nozzles and recycling of sodium percarbonate dust from the exhaust ga ses of the fluid bed to the granulation.

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