Method for reducing ammonium content in paper-making reconstituted tobacco
A papermaking method and deammonium technology, which are applied in the directions of tobacco, tobacco preparation, application, etc., to achieve the effects of high application value, low cost and convenient control
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[0016] Example 1:
[0017] There are 20 pairs of INOSEP installed TM Ion exchange membrane, an electrodialysis device with an effective separation area of 1 square meter, add 10 kilograms of pretreated tobacco stem extract with an initial conductivity of 16.5 mS / cm and a concentration of 8.5% in the light room, and put it in the thick room Add 5 kg of deionized water, adjust the DC voltage to 40V, the flow rate of the tobacco stem extract to 5L / min, the flow rate of deionized water to 2.5L / min, stop the electrodialysis when the conductivity of the light chamber reaches 5.02mS / cm, and remove ammonium. The root work curve shows that the deammonium root rate of the material is 70%, and the actual measurement is 72%.
Example Embodiment
[0018] Example 2:
[0019] There are 20 pairs of INOSEP installed TM Ion exchange membrane, an electrodialysis device with an effective separation area of 1 square meter, add 10 kilograms of pretreated tobacco leaf extract with an initial conductivity of 29.8 mS / cm and a concentration of 20% in the light room, and put it in the thick room Add 3.3 kg of tap water, adjust the DC voltage to 8V, the flow rate of the tobacco stem extract to 6L / min, the flow rate of tap water to 2L / min, and stop the electrodialysis when the conductivity of the fresh room reaches 2.36mS / cm. The deammonium root rate was 89%, and the measured rate was 86%.
Example Embodiment
[0020] Example 3:
[0021] There are 20 pairs of INOSEP installed TM Ion exchange membrane, an effective separation area of 1 square meter electrodialysis device, add 5 kg of the pretreated stem leaf mixed extract with an initial conductivity of 18.1 mS / cm and a concentration of 10% in the light chamber. Add 15 kg of tap water to the chamber, adjust the DC voltage to 20V, the flow rate of the stem leaf extract to 5L / min, the flow rate of tap water to 5L / min, and stop the electrodialysis when the conductivity of the fresh chamber reaches 9.33mS / cm. The working curve of desammonium root shows The deammonium rate of the material is 54%, which is 56% in actual measurement.
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