The invention relates to a method for reducing
ammonium content in paper-making reconstituted tobacco, belongs to the technical field of the paper-making reconstituted tobacco and is an improvement of an existing method for producing paper-making reconstituted tobacco. The improvement refers to that an
electrodialysis ammonium removing process composed of a tobacco
raw material extracting solution pretreating procedure and an
electrodialysis ammonium removing procedure is added after a tobacco
raw material solid-liquid
separation process and before a process of concentrating extracting solution to prepare a
coating material, wherein a, the tobacco
raw material extracting solution pretreating procedure includes that insoluble solids with granular size larger than 200nm and colloidal substances in an extracting solution are removed by a
ceramic membrane
microfiltration technology; b, the
electrodialysis ammonium removing procedure is finished in an electrodialysis device with a
conductivity meter, and a working curve about correlation between a
conductivity drop rate and ammonium removing amount after ammonium is removed by light-room raw materials is utilized to control the ammonium removing amount. The method for reducing the ammonium content in the paper-making reconstituted tobacco has the advantages that ammonium
ion removing rate is high in the tobacco raw material extracting solution, raw material loss is less, ammonium
ion content is convenient to control, cost is low, and an application value is high.