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22. 发明授权

US06248707B1 Method for producing sodium percarbonate 有权
标题翻译：生产过碳酸钠的方法
公开(公告)号：US06248707B1
公开(公告)日：2001-06-19
申请号：US09331010
申请日：1999-08-13
申请人： Werner Doetsch , Manfred Mathes , Helmut Honig , Gabriele Wasem
发明人： Werner Doetsch , Manfred Mathes , Helmut Honig , Gabriele Wasem
IPC分类号： C11D3395
CPC分类号： C11D3/3942 , B01J2/00 , C01B15/103 , C11D1/04 , C11D3/128 , C11D17/065
摘要： A method for the “dry” production of sodium percarbonate (dry process), in which monohydrate crystals of sodium carbonate are reacted with a quasi-stoichiometric quantity of concentrated aqueous hydrogen peroxide solution, relative to the quantity of active oxygen required in the sodium percarbonate to be produced. This method can be combined to great advantage with subsequent compaction of the sodium percarbonate obtained. Sodium percarbonate products containing varying concentrations of active oxygen of at least 10 weight percent, particularly high active oxygen concentrations of above 14.5 weight percent, can be produced. The resulting sodium percarbonate products are distinguished in that they have remarkably advantageous dissolution rates, stabilities and compatibility with detergent bases, and are superior to conventional sodium percarbonates obtained, for example, by a crystallization process. The invention also relates to the sodium percarbonate products obtained and to detergent compositions containing such sodium percarbonate products.
摘要翻译：相对于过碳酸钠中所需的活性氧的量，将碳酸钠的一水合物晶体与准化学计算量的浓缩的过氧化氢水溶液进行“干”生产过碳酸钠（干法）的方法要生产。所得到的过碳酸钠随后的压实可以将该方法组合起来具有很大的优势。可以生产含有至少10重量％的不同浓度的活性氧的过碳酸钠产物，特别是高于14.5重量％的特别高的活性氧浓度。所得到的过碳酸钠产物的特征在于它们具有非常有利的溶解速率，稳定性和与洗涤剂碱的相容性，并且优于例如通过结晶方法获得的常规过碳酸钠。本发明还涉及所得的过碳酸钠产品和含有过碳酸钠产品的洗涤剂组合物。

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