公开(公告)号：US4104038A

公开(公告)日：1978-08-01

申请号：US696175

申请日：1976-06-15

申请人： Christian Rubens Josis

发明人： Christian Rubens Josis

IPC分类号： B01D3/00 ,  B01D3/18 ,  B01D3/32 ,  B01D3/34 ,  B01D19/00 ,  B01D53/14 ,  B01D53/18 ,  C02F1/04 ,  C02F1/20 ,  C02F1/58 ,  C10K1/08 ,  C10K1/12

CPC分类号： B01D53/18 ,  B01D19/00 ,  B01D19/0005 ,  B01D3/18 ,  B01D3/32 ,  B01D3/34 ,  B01D53/14 ,  C02F1/20 ,  C02F1/586 ,  C10K1/08 ,  C10K1/12 ,  C02F2101/16

摘要： Volatile compounds are desorbed from an aqueous liquid containing ammonia, by means of a stripping column. The aqueous liquid is supplied to the upper part of the column and a gaseous mixture including free oxygen is blown into the lower part of the column. Sodium hydroxide and/or calcium hydroxide is supplied to an intermediate part of the column at a plurality of levels. A gaseous mixture including ammonia is withdrawn from the top of the column. The pH and the temperature of the aqueous liquid are measured at a plurality of levels in the column. The flow rate of the aqueous liquid and the flow rate and temperature of the gaseous mixture blown in and of the hydroxide are controlled so that the pH of the aqueous liquid, at least in a predetermined zone of the column, is at least 11.

摘要翻译： 挥发性化合物通过汽提塔从含有氨的含水液体中解吸。 将水性液体供应到塔的上部，并且包含游离氧的气体混合物吹入塔的下部。 将氢氧化钠和/或氢氧化钙以多个水平供给到塔的中间部分。 包括氨的气体混合物从塔的顶部排出。 在柱中以多个水平测量水性液体的pH和温度。 控制水性液体的流速和吹入氢氧化物的气体混合物的流量和温度，使得至少在塔的预定区域中的水性液体的pH至少为11。