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1. 发明申请

US20100171230A1 Method for Production of Granular Sodium Percarbonate 审中-公开
标题翻译：颗粒过碳酸钠的生产方法
公开(公告)号：US20100171230A1
公开(公告)日：2010-07-08
申请号：US12442865
申请日：2007-07-17
申请人： Stefan Leininger , Michael Scheibe , Lothar Kaiser , Bertram Trautvetter , Waldemar Hessberger , Marcel Verduyn , Holger Pitsch , Harald Jakob
发明人： Stefan Leininger , Michael Scheibe , Lothar Kaiser , Bertram Trautvetter , Waldemar Hessberger , Marcel Verduyn , Holger Pitsch , Harald Jakob
IPC分类号： B29B9/10
CPC分类号： C01B15/103 , B01J2/16
摘要： The process for producing granular sodium percarbonate by fluidized bed buildup granulation comprises the spraying of an aqueous solution of hydrogen peroxide and of an aqueous solution of sodium carbonate with at least one multisubstance nozzle with external mixing into a fluidized bed comprising sodium percarbonate particles and simultaneously evaporating water, and is characterized in that the solution of sodium carbonate additionally comprises sodium carbonate and/or sodium percarbonate in suspended form and is passed through a dispersing apparatus for dispersion of solids before being fed to the multisubstance nozzle.The process allows the blockage of the multisubstance nozzle to be avoided and sodium percarbonate dust to be recycled from the offgas stream of the fluidized bed into the granulation.
摘要翻译：通过流化床堆积制粒生产颗粒状过碳酸钠的方法包括将过氧化氢水溶液和碳酸钠水溶液与至少一个多质量喷嘴进行外部混合喷入包含过碳酸钠颗粒的流化床中并同时蒸发水，其特征在于，碳酸钠溶液另外包含悬浮形式的碳酸钠和/或过碳酸钠，并且在进料到多功能喷嘴之前通过用于分散固体的分散装置。该过程允许避免多功能喷嘴的堵塞，并且将过碳酸钠粉尘从流化床的废气流再循环到造粒中。

2. 发明授权

US06942845B2 Process for improving the internal stability of sodium percarbonate 失效
标题翻译：改善过碳酸钠的内部稳定性的方法
公开(公告)号：US06942845B2
公开(公告)日：2005-09-13
申请号：US10025577
申请日：2001-12-26
申请人： Harald Jakob , Waldemar Hessberger , Lothar Kaiser , Juergen Lattich , Ralph Overdick
发明人： Harald Jakob , Waldemar Hessberger , Lothar Kaiser , Juergen Lattich , Ralph Overdick
IPC分类号： C01B15/10
CPC分类号： C01B15/106
摘要： The invention relates to uncoated and/or coated sodium percarbonate with improved internal stability and storage stability; and, a process that provides uncoated and/or coated sodium percarbonate with improved internal stability and storage stability.
摘要翻译：本发明涉及具有改进的内部稳定性和储存稳定性的未涂覆和/或涂覆的过碳酸钠; 以及提供未涂覆和/或涂覆的过碳酸钠，具有改进的内部稳定性和储存稳定性的方法。

3. 发明授权

US07241433B2 Process for the preparation of coated granular sodium percarbonate, and product obtainable by the process 有权
标题翻译：涂覆颗粒状过碳酸钠的制备方法以及通过该方法得到的产物
公开(公告)号：US07241433B2
公开(公告)日：2007-07-10
申请号：US10223351
申请日：2002-08-20
申请人： Harald Jakob , Waldemar Hessberger , Juergen Lattich , Ralph Overdick
发明人： Harald Jakob , Waldemar Hessberger , Juergen Lattich , Ralph Overdick
IPC分类号： C01B15/10 , B05D1/02 , B05D3/00 , B05D3/02 , C11D17/00
CPC分类号： C01B15/103 , C01B15/106
摘要： The invention relates to a process for the preparation of coated granular sodium percarbonate having a low TAM value. The preparation is carried out by fluidized-bed spray granulation at a temperature TG in the range from 45 to 75° C., and the coating is effected by the spray application of an aqueous solution containing at least one coating component in a fluidized bed at a temperature TU in the range from 35 to 100° C. According to the invention, a) after the fluidized-bed spray granulation but before the coating, drying is carried out at TNT of greater than TG, or b) the fluidized-bed granulation is carried out in at least two steps at TG1, TG2 . . . TGn, TG2 or TGn being higher than TG1, and drying being unnecessary if ⅔ of the granulate have been formed at TG1, or c) drying takes place not after the granulation but after the coating, at TUNT, TUNT being at least 20° C. higher than TG.
摘要翻译：本发明涉及一种制备具有低TAM值的涂层粒状过碳酸钠的方法。该制备通过流化床喷雾造粒在45至75℃的温度下进行，并且涂层通过喷雾施加至少含有至少在流化床中的一种涂层组分，温度为T 35℃，范围为35-100℃。根据本发明，a）在流化床喷雾造粒之后但在涂覆之前，干燥在T T T T T下进行，大于T G G，或者b）流化床造粒在T G1期至少两个步骤进行 >，T2 。。。 T N G N，T G 2，或T N G N，高于T G 1，并且如果2 / 3的颗粒已经在T 1 G形成，或c）干燥发生不是在造粒之后而是在涂覆之后，在T UNT，T UNT 比T G高至少20℃。

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