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1.发明授权Coated sodium percarbonate particles, a process for their preparation and their use 失效涂覆的过碳酸钠颗粒，其制备方法及其用途
公开(公告)号：US5902682A
公开(公告)日：1999-05-11
申请号：US586597
申请日：1996-01-16
申请人： Birgit Bertsch-Frank , Martin Bewersdorf , Claas-Juergen Klasen , Thomas Lieser , Klaus Mueller , Juergen Rollmann
发明人： Birgit Bertsch-Frank , Martin Bewersdorf , Claas-Juergen Klasen , Thomas Lieser , Klaus Mueller , Juergen Rollmann
CPC分类号： C01B15/106 , C11D17/0039 , C11D3/3942 , Y10T428/2991 , Y10T428/2993
摘要： Coated sodium percarbonate particles contain, in the coating, sodium carbonate and also one or more magnesium compounds, preferably magnesium sulfate, optionally in a partially hydrated form, in a single layer or in separate layers in the coating. Preferred coated sodium percarbonate particles contain two layers. Particles are prepared by spraying aqueous solutions containing the coating components onto sodium percarbonate in a fluidized bed with simultaneous evaporation of the water. The particles are suitable for use in detergents, bleaches and cleansing agents.
摘要翻译： 涂层的过碳酸钠颗粒在涂层中在涂层中在单层中或在涂层中的单独层中含有一种或多种镁化合物，优选硫酸镁，优选为部分水合形式的镁化合物。 优选的包衣过碳酸钠颗粒包含两层。 通过在流化床中同时蒸发水将含有涂层组分的水溶液喷洒到过碳酸钠上来制备颗粒。 该颗粒适用于洗涤剂，漂白剂和清洁剂。
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2.发明授权Coated sodium percarbonate particles, a process for their production and detergent, cleaning and bleaching compositions containing them 失效涂覆的过碳酸钠颗粒，其生产方法和洗涤剂，含有它们的清洁和漂白组合物
公开(公告)号：US5658873A
公开(公告)日：1997-08-19
申请号：US525782
申请日：1995-10-02
申请人： Birgit Bertsch-Frank , Claas-Juergen Klasen , Thomas Lieser , Klaus Mueller , Martin Bewersdorf
发明人： Birgit Bertsch-Frank , Claas-Juergen Klasen , Thomas Lieser , Klaus Mueller , Martin Bewersdorf
CPC分类号： C01B15/106 , C11D17/0039 , C11D3/3942
摘要： Sodium percarbonate is often used in the form of coated particles to increase its storage stability in detergents.Sodium percarbonate particles coated in accordance with the invention have a coating containing reaction products from the reaction of a dialkali metal tetraborate or alkali metal pentaborate with aqueous hydrogen peroxide. Preferred coating components are: perborax with the formula Na.sub.2 B.sub.4 O.sub.7 .multidot.H.sub.2 O.sub.2, where n =2 or 4.The coated sodium percarbonate particles are produced by coating the percarbonate particles using a solution containing the reaction products mentioned above.Detergent, bleaching and cleaning compositions containing sodium percarbonate particles coated in accordance with the invention are distinguished by very high stability in storage.
摘要翻译： PCT No.PCT / EP94 / 00576 Sec。 371 1995年10月2日日期 102（e）日期1995年10月2日PCT 1994年2月28日PCT PCT。 出版物WO94 / 24044 日期1994年10月27日过碳酸钠通常以涂层颗粒的形式使用，以增加其在洗涤剂中的储存稳定性。 根据本发明涂覆的过碳酸钠颗粒具有含有四碱金属四硼酸盐或碱金属五硼酸盐与过氧化氢水溶液的反应产物的涂层。 优选的涂层组分是：具有式Na2B4O7xH2O2，其中n = 2或4的perborax。涂覆的过碳酸钠颗粒通过使用含有上述反应产物的溶液涂覆过碳酸盐颗粒来制备。 包含根据本发明涂覆的过碳酸钠颗粒的洗涤剂，漂白和清洁组合物的特征在于非常高的储存稳定性。
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公开(公告)号：US5632965A
公开(公告)日：1997-05-27
申请号：US507279
申请日：1995-09-28
CPC分类号： C01B15/106 , C11D17/0039 , C11D3/3937 , C11D3/3942
摘要： The invention relates to a method for increasing the storage stability of sodium percarbonate (2 Na.sub.2 CO.sub.3.3 H.sub.2 O.sub.2) by coating with a sodium perborate.According to the present invention wet sodium percarbonate salt, obtained by reacting sodium carbonate with hydrogen peroxide in aqueous phase and separating the salt from the aqueous phase, is treated with a solution or suspension containing sodium perborate in a solid-liquid separator by a kind of displacement wash. In contrast to previously known methods, according to the present invention a greater storage stability is attained with smaller quantities of perborate coating.
摘要翻译： PCT No.PCT / EP94 / 00422 Sec。 371 1995年9月28日第 102（e）1995年9月28日PCT PCT 1994年2月15日PCT公布。 出版物WO94 / 20413 日期1994年9月15日本发明涉及一种通过用过硼酸钠涂覆来提高过碳酸钠（2 Na 2 CO 3·3H 2 O 2）的储存稳定性的方法。 根据本发明，通过碳酸钠与过氧化氢在水相中反应并将盐与水相分离得到的湿过碳酸钠盐在固 - 液分离器中用含有过硼酸钠的溶液或悬浮液处理，通过一种 置换清洗。 与先前已知的方法相反，根据本发明，通过较少量的过硼酸盐涂层获得更大的储存稳定性。
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4.发明授权Coated sodium percarbonate particles, process for the production thereof and use thereof 失效涂覆过碳酸钠颗粒，其制备方法及其用途
公开(公告)号：US5935708A
公开(公告)日：1999-08-10
申请号：US755613
申请日：1996-11-25
CPC分类号： C11D3/046 , C01B15/106 , C11D17/0039 , C11D3/3942 , Y10T428/2991
摘要： In order to increase active oxygen stability, sodium percarbonate is coated with single or multiple layers of various substances. Sodium percarbonate particles consist of a core of sodium percarbonate fluidized bed spray granulate and sodium sulphate, which may be partially hydrated, as the sole constituent of a single coating layer. The particles exhibit both elevated active oxygen stability and very good ensilability. The coating layer is applied by spraying an aqueous Na.sub.2 SO.sub.4 solution onto the particles to be coated, which were themselves produced by fluidized bed spray granulation, in a fluidized bed and vaporizing water at a fluidized bed temperature of 35 to 100.degree. C.
摘要翻译： 为了提高活性氧的稳定性，过碳酸钠被单层或多层各种物质涂覆。 过碳酸钠颗粒由过碳酸钠流化床喷雾颗粒和硫酸钠的核心组成，其可以部分水合，作为单一涂层的唯一成分。 颗粒表现出升高的活性氧稳定性和非常好的可靠性。 通过在流化床中以流化床温度为35〜100℃喷雾Na 2 SO 4水溶液涂布在待涂布的颗粒上，其本身通过流化床喷雾造粒在流化床中和蒸发水中进行。
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5.发明授权Process for producing abrasion-resistant sodium perborate monohydrate with high bulk density and high rate of solution 失效制造高堆积密度和高溶解速率的耐磨过硼酸钠一水合物的方法
公开(公告)号：US5653950A
公开(公告)日：1997-08-05
申请号：US646455
申请日：1996-05-08
IPC分类号： C01B15/12
CPC分类号： C01B15/126 , C01B15/12
摘要： Sodium perborate monohydrate having an O.sub.a content of 14 to 16%, a bulk density of at least 600 g/l, an abrasion index (ISO 5937) of less than 8%, and a specific surface of less than 5 m.sup.2 /g can be produced by a fluidized bed--spraying process by spraying a sodium perborate solution produced by combining and mixing an aqueous hydrogen peroxide solution with an aqueous sodium metaborate solution, whereby the contact time between the combination of the solutions and the spraying is at least 2 seconds and preferably at least 5 seconds.
摘要翻译： Oa含量为14〜16％，堆积密度为600g / l以上，磨损指数（ISO 5937）小于8％，比表面积小于5m 2 / g的过硼酸钠一水合物可以为 通过喷射通过将过氧化氢水溶液与偏二硼酸钠水溶液组合并混合而制备的过硼酸钠溶液喷射流化床喷涂方法，由此溶液和喷雾的组合之间的接触时间为至少2秒， 优选至少5秒。
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