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1. 发明授权

US08133460B2 Method for the preparation of a reducing agent composition 有权
标题翻译：制备还原剂组合物的方法
公开(公告)号：US08133460B2
公开(公告)日：2012-03-13
申请号：US12526302
申请日：2008-02-14
申请人： Jouko Arvola , Timo Härmä , Eero Hätälä , Lauri Määttä , Timo Nissinen , Pentti Pekonen
发明人： Jouko Arvola , Timo Härmä , Eero Hätälä , Lauri Määttä , Timo Nissinen , Pentti Pekonen
IPC分类号： B01D53/54
CPC分类号： B01D53/8625 , B01D53/90 , B01D2251/2062 , F01N3/2073 , F01N2610/02 , Y02A50/2325
摘要： The invention relates to a method for preparing a reducing agent composition, which is used in the selective catalytic reduction of nitrogen oxides and which contains from 20 to 40% by weight of urea, from 20 to 40% by weight of ammonium formate, and water. The composition is prepared by adding urea to the aqueous solution of ammonium formate that is prepared in situ, and by preparing the aqueous solution of ammonium formate using, as starting materials, a source of ammonium, a source of formate, and water.
摘要翻译：本发明涉及一种还原剂组合物的制备方法，该还原剂组合物用于氮氧化物的选择性催化还原，其含有20至40重量％的脲，20至40重量％的甲酸铵和水。通过向原位制备的甲酸铵水溶液中加入尿素并通过使用铵源，甲酸盐和水的原料制备甲酸铵水溶液来制备组合物。

2. 发明申请

US20100084606A1 METHOD FOR THE PREPARATION OF A REDUCING AGENT COMPOSITION 有权
标题翻译：制备还原剂组合物的方法
公开(公告)号：US20100084606A1
公开(公告)日：2010-04-08
申请号：US12526302
申请日：2008-02-14
申请人： Jouko Arvola , Timo Harma , Eero Hatala , Lauri Maatta , Timo Nissinen , Pentti Pekonen
发明人： Jouko Arvola , Timo Harma , Eero Hatala , Lauri Maatta , Timo Nissinen , Pentti Pekonen
IPC分类号： C09K3/00
CPC分类号： B01D53/8625 , B01D53/90 , B01D2251/2062 , F01N3/2073 , F01N2610/02 , Y02A50/2325
摘要： The invention relates to a method for preparing a reducing agent composition, which is used in the selective catalytic reduction of nitrogen oxides and which contains from 20 to 40% by weight of urea, from 20 to 40% by weight of ammonium formate, and water. The composition is prepared by adding urea to the aqueous solution of ammonium formate that is prepared in situ, and by preparing the aqueous solution of ammonium formate using, as starting materials, a source of ammonium, a source of formate, and water.
摘要翻译：本发明涉及一种还原剂组合物的制备方法，该还原剂组合物用于氮氧化物的选择性催化还原，其含有20至40重量％的脲，20至40重量％的甲酸铵和水。通过向原位制备的甲酸铵水溶液中加入尿素并通过使用铵源，甲酸盐和水的原料制备甲酸铵水溶液来制备组合物。

3. 发明授权

US06793904B2 Method for the preparation of sodium percarbonate granules having enhanced stability 有权
标题翻译：制备稳定性好的过碳酸钠颗粒的方法
公开(公告)号：US06793904B2
公开(公告)日：2004-09-21
申请号：US10056006
申请日：2002-01-28
申请人： Olof Norrlöw , Pentti Pekonen
发明人： Olof Norrlöw , Pentti Pekonen
IPC分类号： C01B1510
CPC分类号： C11D3/3942 , C01B15/106 , C11D3/128 , C11D17/0039
摘要： A method for the preparation of sodium percarbonate granules having enhanced stability, comprising modifying the surface of the sodium percarbonate granules by a surface reaction between sodium percarbonate and carbon dioxide or bicarbonate species to form a dense solid film of essentially sodium bicarbonate on the surface of the sodium percarbonate granules, the method comprising the steps of: a) dissolving carbon dioxide in water to form an aqueous solution containing dissolved carbon dioxide and bicarbonate, b) exposing the surface of the sodium percarbonate granules to a spray of the aqueous solution containing dissolved carbon dioxide and bicarbonate, to form the solid film of essentially sodium bicarbonate, and subsequently c) removing the residual fluid from the surface.
摘要翻译：一种制备具有增强的稳定性的过碳酸钠颗粒的方法，包括通过过碳酸钠和二氧化碳或碳酸氢盐物质之间的表面反应来改变过碳酸钠颗粒的表面，以形成基本上碳酸氢钠的致密固体膜过碳酸钠颗粒，所述方法包括以下步骤：a）将二氧化碳溶解在水中以形成含有溶解的二氧化碳和碳酸氢盐的水溶液，b）将过碳酸钠颗粒的表面暴露于含有溶解碳的水溶液的喷雾中二氧化碳和碳酸氢盐，以形成基本上碳酸氢钠的固体膜，随后c）从表面除去残余流体。

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