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1. 发明授权

US4053555A Removal of nitrogen oxides from industrial gases by use of oxidizing solutions in which nitrates are the oxidants 失效
标题翻译：通过使用硝酸盐作为氧化剂的氧化溶液从工业气体中除去氮氧化物
公开(公告)号：US4053555A
公开(公告)日：1977-10-11
申请号：US548104
申请日：1975-02-07
申请人： Donald W. Bolme
发明人： Donald W. Bolme
IPC分类号： C01B21/36 , B01D53/34
CPC分类号： C01B21/36
摘要： Nitric oxide may be removed from gases which it is admixed by contacting the gases with aqueous solutions containing nitrate ions in sufficient concentration to oxidize the nitric oxide to nitrous acid and to retain it in the solution under stable conditions. Other oxides of nitrogen can also be absorbed producing nitrous acid which is retained in the aqueous solution in a similar manner. Thereafter, the scrubbing solution is regenerated under controlled conditions, producing a gas stream which contains the recovered nitrogen oxides in relatively high concentration and a scrubbing solution which can be recycled. The recovered nitrogen oxides may be used in the manufacture of nitric acid or other compounds or decomposed into harmless gases.

2. 发明授权

US4138470A Method of preventing escape of nitrogen oxides from an aqueous nitrate solution 失效
标题翻译：防止氮氧化物从硝酸水溶液中逸出的方法
公开(公告)号：US4138470A
公开(公告)日：1979-02-06
申请号：US826639
申请日：1977-08-22
申请人： Donald W. Bolme
发明人： Donald W. Bolme
IPC分类号： B01D53/56 , C01B21/36 , C01B21/38 , C01B21/40
CPC分类号： B01D53/56 , C01B21/36
摘要： Nitric oxide may be removed from gases which it is admixed by contacting the gases with aqueous solutions containing nitrate ions in sufficient concentration to oxidize the nitric oxide to nitrous acid and to retain it in the solution under stable conditions. Other oxides of nitrogen can also be absorbed producing nitrous acid which is retained in the aqueous solution in a similar manner. Thereafter, the scrubbing solution is regenerated under controlled conditions, producing a gas stream which contains the recovered nitrogen oxides in relatively high concentration and a scrubbing solution which can be recycled. The recovered nitrogen oxides may be used in the manufacture of nitric acid or other compounds or decomposed into harmless gases.
摘要翻译：通过使气体与含有足够浓度的硝酸根离子的水溶液接触，将一氧化氮从气体中除去，从而将一氧化氮氧化成亚硝酸并将其保持在稳定条件下的溶液中。还可以吸收其它的氮氧化物，以类似的方式产生保留在水溶液中的亚硝酸。此后，洗涤溶液在受控条件下再生，产生含有较高浓度的回收的氮氧化物的气流和可回收的洗涤溶液。回收的氮氧化物可用于制造硝酸或其他化合物或分解成无害气体。

3. 发明授权

US4118460A Removal of nitrogen oxides from industrial gases by use of oxidizing solutions in which nitrates are the oxidants 失效
标题翻译：通过使用其中硝酸盐是氧化剂的氧化溶液从工业气体中除去氮氧化物
公开(公告)号：US4118460A
公开(公告)日：1978-10-03
申请号：US826638
申请日：1977-08-22
申请人： Donald W. Bolme
发明人： Donald W. Bolme
IPC分类号： B01D53/56 , C01B21/36 , B01D53/34
CPC分类号： B01D53/56 , C01B21/36
摘要： Nitric oxide may be removed from gases with which it is admixed by contacting the gases with aqueous solutions containing nitrate ions in sufficient concentration to oxidize the nitric oxide to nitrous acid and to retain it in the solution under stable conditions. Other oxides of nitrogen can also be absorbed producing nitrous acid which is retained in the aqueous solution in a similar manner. Thereafter, the scrubbing solution is regenerated under controlled conditions, producing a gas stream which contains the recovered nitrogen oxides in relatively high concentration and a scrubbing solution which can be recycled. The recovered nitrogen oxides may be used in the manufacture of nitric acid or other compounds or decomposed into harmless gases.
摘要翻译：通过使气体与含有足够浓度的硝酸根离子的水溶液接触，将氧化物氧化成亚硝酸并在稳定的条件下将其保留在溶液中，从而将其与其混合的气体中除去。还可以吸收其它的氮氧化物，以类似的方式产生保留在水溶液中的亚硝酸。此后，洗涤溶液在受控条件下再生，产生含有较高浓度的回收的氮氧化物的气流和可回收的洗涤溶液。回收的氮氧化物可用于制造硝酸或其他化合物或分解成无害气体。

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