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公开(公告)号：US5560896A
公开(公告)日：1996-10-01
申请号：US457435
申请日：1995-06-01
申请人： Martin Bewersdorf , Claas-Jurgen Klasen , Petra Look-Herber , Birgit Bertsch-Frank , Thomas Lieser , Klaus Muller
发明人： Martin Bewersdorf , Claas-Jurgen Klasen , Petra Look-Herber , Birgit Bertsch-Frank , Thomas Lieser , Klaus Muller
CPC分类号： B01D1/20 , B01J2/04 , B01J2/16 , B05B7/061 , C01B15/103
摘要： Sodium percarbonate is produced by means of fluidized bed granulation. The process includes spraying an aqueous sodium carbonate solution and a hydrogen peroxide solution onto nuclei in a fluidized bed and evaporating the water. In the process of the invention, it is not necessary to use a phosphorus-containing crystallization inhibitor in order to avoid cloggings and incrustations in and on the nozzle. This is accomplished by spraying the solutions through separate channels in a single ternary atomizer nozzle, to provide external mixing of the solutions with respect to the nozzle.
摘要翻译： 过碳酸钠是通过流化床造粒生产的。 该方法包括将碳酸钠水溶液和过氧化氢溶液喷洒在流化床中的核上并蒸发水。 在本发明的方法中，不需要使用含磷结晶抑制剂，以避免喷嘴内和喷嘴上的堵塞和结垢。 这是通过在单个三元雾化器喷嘴中通过单独的通道喷射溶液来实现的，以提供溶液相对于喷嘴的外部混合。
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2.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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3.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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4.发明授权High active oxygen content granulated sodium perborate product and method of making the same 失效高活性氧含量粒状葡萄糖酸钡产品及其制备方法
公开(公告)号：US5094827A
公开(公告)日：1992-03-10
申请号：US570267
申请日：1990-08-20
CPC分类号： C01B15/12 , B01J2/00 , C01B15/126
摘要： The spray drying of a solution containing hydrogen peroxide and sodium metaborate to obtain primary particles which are immediately conveyed after leaving the drying zone to a granulating device and are then granulated in the presence of free and/or perborate water of crystallization. The granulated materials are dried, if necessary. The generally amorphous primary particles are converted into granulated materials with at least partially crystalline structure and significantly improved shelf life. The work is performed with advantage in a spray dryer with integrated fluid bed or in a compressing granulating device. The method is suitable for preparing perborate granulated materials with an active oxygen content of over 10% by weight, especially perborate monohydrate granular materials with 14 to 16% by weight active oxygen. A rapidly dissolving product is produced with an acceptable apparent weight for ease in packaging.
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公开(公告)号：US5395602A
公开(公告)日：1995-03-07
申请号：US628913
申请日：1990-12-18
CPC分类号： C01B15/12
摘要： The invention relates to sodium perborate hydrate granulates and a method for producing sodium perborate hydrate granulates with an available oxygen content of 14 to 18% by weight, especially 15 to 16% by weight; an abrasion index according to ISO test 5937 of not more than 10%; with a rate of dissolution of below 1.5 minutes, preferably below 1.0 minutes (for 1 gram of the granulate in 500 cm.sup.3 water, at 15.degree. C.); and with a bulk weight in the range of 0.6 to 1.2 kg/dm.sup.3. The sodium perborate hydrate granulate can be produced by compacting spray-dried, essentially amorphous sodium perborate hydrate starting material which exhibits a bulk weight below that of the granulate product, and a particle size of 90% less than 100 micrometers. The hydrate starting material is further characterized in that it loses 0.2 to 2.0% of its weight when stored at 60.degree. C. and 100 Pa for 30 minutes. The starting material is compacted between rollers at a contact pressure of 5.times.10 to 2.times.10.sup.4 N/cm, and the resultant product is comminuted and the granulate is sieved according to particle size. The compacted granulate particles may be rounded off by means of a mechanical stressing prior to the sieving step. This method produces granulates with the above-mentioned characteristics which are desired in the market. The granulates are produced in a simple manner, without thermal stressing of the perborate.
摘要翻译： 本发明涉及过硼酸钠水合物颗粒和一种生产过硼酸钠水合物颗粒的方法，该颗粒的可用氧含量为14至18重量％，特别是15至16重量％ 根据ISO测试5937的磨损指数不超过10％; 溶解速率低于1.5分钟，优选低于1.0分钟（对于1克在500厘米3的水中，15℃的颗粒）; 并且体积重量在0.6至1.2kg / dm 3的范围内。 过硼酸钠水合物颗粒可以通过压实喷雾干燥的，基本上无定形的过硼酸钠水合物起始材料制成，其体积重量低于颗粒产物的体积重量，并且颗粒尺寸小于100微米。 水合物原料的特征还在于，当在60℃和100Pa下储存30分钟时，其失重的重量为0.2-2.0％。 起始材料在5x10至2×104N / cm的接触压力下在辊之间压实，并将所得产物粉碎，并将颗粒根据粒径筛分。 通过在筛分步骤之前的机械应力，压实的粒状颗粒可以被倒圆。 该方法产生具有市场上期望的上述特征的颗粒。 颗粒以简单的方式生产，没有过热硼酸盐的热应激。
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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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公开(公告)号：US4968500A
公开(公告)日：1990-11-06
申请号：US355845
申请日：1989-05-17
CPC分类号： C01B15/12 , B01J2/00 , C01B15/126
摘要： The spray drying of a solution containing hydrogen peroxide and sodium metaborate to obtain primary particles which are immediately conveyed after leaving the drying zone to a granulating device and are then granulated in the presence of free and/or perborate water of crystallization. The granulated materials are dried, if necessary. The generally amorphous primary particles are converted into granulated materials with at least partially crystalline structure and significantly improved shelf life. The work is performed with advantage in a spray dryer with integrated fluid bed or in a compressing granulating device. The method is suitable for preparing perborate granulated materials with over 10% by wt., especially perborate monohydrate granular materials with 14-16% by wt. active oxygen.
摘要翻译： 喷雾干燥含有过氧化氢和偏硼酸钠的溶液，以获得在离开干燥区之后立即输送到造粒装置的一次颗粒，然后在游离和/或过硼酸水结晶的存在下造粒。 如果需要，将造粒材料干燥。 将一般无定形的一次粒子转化成具有至少部分晶体结构并显着提高保质期的造粒材料。 在具有集成流化床的喷雾干燥器中或在压缩造粒装置中有利地进行该工作。 该方法适用于制备超过10重量％的过硼酸盐造粒材料，特别是具有14-16重量％的过硼酸盐一水合物颗粒材料。 活性氧。
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8.发明授权Aqueous bleaching agent suspensions containing peroxycarboxylic acid, method for their preparation and use 失效含有过氧羧酸的水性漂白剂悬浮液，其制备和使用方法
公开(公告)号：US4879057A
公开(公告)日：1989-11-07
申请号：US168997
申请日：1988-03-16
CPC分类号： C11D3/3947 , C11D3/222
摘要： Aqueous bleaching agent suspensions based on a water-soluble peroxycarboxylic acid suspended in a carrier liquid in the presence of an organic thickening agent and of an acidifying agent exhibit an improved storage resistance over known suspensions with this base. This is achieved by means of pourable to pasty bleaching agent suspensions which contain a xanthan polysaccharide or agar polysaccharide as thickening agent and, in addition, a hydrate-forming neutral salt which desensitizes peroxycarboxylic acids. Preferred suspensions exhibit a pH of 2-5 and contain 10-30% by wt. diperoxydodecanedioic acid, 5-20% by wt. sodium sulfate and 0.1-1.0% by wt. xanthan. The use of non-dried, hydrophilized and optionally in situ desensitized peroxycarboxylic acids is especially preferred.The bleaching agent suspensions are prepared by homogeneously suspending the peroxycarboxylic acid in the thickened carrier liquid.The storage-resistant bleaching agent suspensions are used as laundry bleaching agents and for preparing cleaning agents and disinfection agents.
摘要翻译： 基于在有机增稠剂和酸化剂存在下悬浮在载体液体中的水溶性过氧羧酸的水性漂白剂悬浮液与已知的具有该碱的悬浮液相比显示出改进的耐贮存性。 这是通过倾倒于含有黄原胶多糖或琼脂多糖作为增稠剂的糊状漂白剂悬浮液以及另外使过氧羧酸脱敏的水合物形成中性盐的方法实现的。 优选的悬浮液的pH为2-5，含有10-30重量％。 二过氧十二烷二酸，5-20重量％ 硫酸钠和0.1-1.0重量％。 黄原胶 非干燥，亲水化和任选原位脱敏过氧羧酸的使用是特别优选的。 漂白剂悬浮液通过将过氧羧酸均匀地悬浮在增稠的载体液体中来制备。 耐贮藏性漂白剂悬浮液用作衣物漂白剂并用于制备清洁剂和消毒剂。
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9.发明授权Aqueous bleaching agent suspensions containing peroxycarboxylic acid, method for their preparation and use 失效含有过氧羧酸的水性漂白剂悬浮液，其制备和使用方法
公开(公告)号：US4790949A
公开(公告)日：1988-12-13
申请号：US168996
申请日：1988-03-16
CPC分类号： C11D3/124 , C11D3/3947
摘要： Aqueous bleaching agent suspensions based on a water-insoluble peroxycarboxylic acid suspended in a carrier liquid in the presence of a colloidal silicic acid and of an acidifying agent which exhibit, in comparision to known suspensions with this base, an improved storage resistance and are more economical to prepare. This result is achieved by means of pourable-to-pasty bleaching agent suspensions which contain 0.1 to 9% by weight silicic acid in relation to the suspension and contain a hydrate-forming neutral salt which desensitizes peroxycarboxylilc acids, in an amount of 10 to 400% by weight, calculated hydrate-free and in relation to peroxycarboxylic acid added. Preferred bleaching agent suspensions contain 10-30% by weight diperoxydodecanedioic acid, 5-20% by weight sodium sulfate and 2 to 6% by weight pyrogenic silicic acid, each in relation to the suspension. The use of non-dried, hydrophilized and optionally in situ-desensitized peroxycarboxylic acids is especially preferred.The preparation of the bleaching agents is performed by homogeneously suspending the peroxycarboxylic acid in the thickened carrier liquid. The storage-resistant bleaching agent suspensions find application as laundry bleaching agents and for the preparation of cleaning and disinfecting agents.
摘要翻译： 基于在胶态硅酸和酸化剂存在下悬浮在载体液体中的水不溶性过氧羧酸的水性漂白剂悬浮液，与已知的该基质悬浮液相比，其具有改善的储存阻力并且更经济 准备。 该结果是通过可倾倒的糊状漂白剂悬浮液来实现的，该悬浮液含有相对于悬浮液为0.1-9重量％的硅酸，并且含有水合物形成中性盐，其使过氧羧酸脱离，其量为10-400 重量％，计算出的无水合物和相对于加入的过氧羧酸。 优选的漂白剂悬浮液含有10-30重量％的二过氧十二烷二酸，5-20重量％的硫酸钠和2至6重量％的致热硅酸，各自相对于悬浮液。 使用非干燥，亲水化和任选的原位脱敏过氧羧酸是特别优选的。 漂白剂的制备通过使过氧羧酸均匀地悬浮在增稠的载体液中进行。 耐贮存的漂白剂悬浮液可用作洗衣漂白剂并用于制备清洁和消毒剂。
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