稻草亚铵法制浆废液氧化氨解产物含氮量的研究

Analysis of Nitrogen Content During The Oxide-ammonium Decomposition of Ammonia Sulfite Pulping Waste Liquor

稻草亚硫酸铵法制浆废液采用氧化氨解的方法,将废液中的铵态氮转化为有机氮。文中介绍了利用十二胺-正辛醇制备的液体离子交换剂,将原制浆废液和氧化氨解后的制浆废液,分别萃取分离,得到有机层和水层,分析氮元素以铵态氮和有机氮的存在形式,及其在有机层和水层的分布,同时,还研究了氧化氨解过程中铵态氮和有机氮在有机层和水层的转化。

The nitrogen, which is in ammonium in the armnonia sulfite pulping waste liquor of rice straw, is converted into organic nitrogen by using oxide-ammonium decomposition method. The paper introduces the preparation of liquid ion-exchange agent using amino dodecane and n-octyl alcohol. Both the raw pulping waste liquor and the pulping waste liquor after oxide-ammonium decomposition are separated and extracted to be the solvent layer and the water layer, This paper analyzes the distribution of nitrogen, in the form of ammonium and organic nitrogen, in the solvent layer and the water layer. The paper also studies the conversion of nitrogen in ammonium state and organic nitrogen in the solvent layer and the water layer during oxide-ammonium decomposition.