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A method for continuously removing chlorine and nitrate in tobacco extraction or extraction liquid

A technology for tobacco extraction and extraction liquid, applied in the field of chlorine and nitrate, can solve the problems of loss of effective components of cigarettes, low removal efficiency, chemical residues, etc. Effect

Active Publication Date: 2018-05-29
HEFEI CHEMJOY POLYMER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing methods of removing chlorine and nitrate in tobacco extraction or extracts, the removal efficiency is not high, it is easy to cause the loss of active ingredients in cigarettes, there are chemical agents remaining in tobacco extraction or extracts, waste of resources, and easy Cause environmental pollution and other shortcomings, the present invention aims to provide a continuous and fast new separation method to realize the extraction of reconstituted tobacco leaves by papermaking method or the removal of chloride ions and nitrate ions in the extract

Method used

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  • A method for continuously removing chlorine and nitrate in tobacco extraction or extraction liquid

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Experimental program
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Effect test

Embodiment 1

[0024] In this embodiment, the method for continuously removing chlorine and nitrate in tobacco extraction or extract liquid is carried out by using a combination of ceramic membrane device and electrodialysis device.

[0025] Such as figure 1 As shown, the ceramic membrane device includes a ceramic membrane module 1, a feed liquid tank 2 and a ceramic membrane device circulation pump 3; The liquid inlet is connected, the liquid outlet of the circulation pump 3 of the ceramic membrane device is connected with the ceramic membrane module 1 through the pipe; For the output of dialysate;

[0026] Such as figure 1 As shown, the electrodialysis device is composed of a desalination chamber material tank 5, a concentration chamber material tank 4, an electrode chamber material tank 6, an electrodialysis membrane assembly 7, three electrodialysis device circulation pumps 9, a DC power supply 8 and pipelines; the electrodialysis membrane The component is composed of an anode, a cath...

Embodiment 2

[0033] The present embodiment adopts the same device as in Example 1, and continuously removes chlorine and nitrates in the tobacco extraction or extraction liquid according to the following steps:

[0034] First, 15L of tobacco extract with a solid content of 16.84% (the chlorine content is about 1.05%, and the nitrate content is about 0.72%) is introduced into the feed liquid tank of the ceramic membrane device for circulating filtration, and the operating temperature is controlled to be ≤35°C. Pressure≤0.5MPa;

[0035] Then the obtained dialysate is continuously output from the dialysis outlet to the material tank of the desalination chamber of the electrodialysis device, and 15L of tap water is added to the material tank of the concentration chamber, and 10L of electrode solution is added to the material tank of the electrode chamber; the dialysis is controlled by a circulating pump The liquid circulates between the desalination chamber and the material tank of the desalin...

Embodiment 3

[0039] The present embodiment adopts the same device as in Example 1, and continuously removes chlorine and nitrates in the tobacco extraction or extraction liquid according to the following steps:

[0040] First, 15L of tobacco extract with a solid content of 12.45% (its chlorine content is about 0.82%, and its nitrate content is about 0.58%) is introduced into the feed liquid tank of the ceramic membrane device for circulating filtration, and the operating temperature is controlled to be ≤35°C. Pressure ≤ 0.5MPa; then the obtained dialysate is continuously output from the dialysate outlet to the material tank of the desalination chamber of the electrodialysis device, and 15L of tap water is added to the material tank of the concentration chamber, and 10L of electrode solution is added to the material tank of the electrode chamber; The circulation pump controls the circulation of the dialysate between the desalination chamber and the material tank of the desalination chamber, ...

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Abstract

The invention discloses a method for continuously removing chlorine and nitrate in an extracting solution of tobacco. The method is characterized in that a ceramic film device and an electrodialysis device are combined to remove chlorine and nitrate in the extracting solution of tobacco, and chemical components in reconstituted tobacco are separated. The method comprises specific steps as follows: the extracting solution of tobacco is introduced into the ceramic film device for circulating filtration, obtained dialysate continuously enters a thinning chamber of the electrodialysis device to circulate and is subjected to electrodialysis, and chlorine and nitrate in the dialysate are removed. After the extracting solution of the tobacco is treated with the method, the removal rate of chlorine ions is higher than 95%, the removal rate of nitrate is higher than 90%, and the yield is larger than 78%.

Description

technical field [0001] The invention relates to a process for continuously removing chlorine and nitrate in tobacco extraction or extraction liquid of reconstituted tobacco leaves. Background technique [0002] Tobacco flakes (or reconstituted tobacco leaves) are regenerated products made of tobacco materials such as tobacco stems, tobacco dust, and shredded tobacco flakes in the form of sheets or filaments, and are used as cigarette fillers. Adding tobacco flakes to cigarettes can not only realize the reuse of waste tobacco raw materials, but also controllably adjust the physical and chemical properties of cigarettes, thereby improving the internal quality of cigarettes and reducing and improving the harm of harmful components in tobacco. At present, the papermaking method is mainly used in China to produce reconstituted tobacco leaves. Tobacco leaf fragments, tobacco dust and tobacco stems are used as the main raw materials, and key processes such as extraction, pulping, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D61/44C02F101/12C02F101/16
CPCC02F1/44C02F1/4693C02F9/00C02F2101/12C02F2101/163C02F2301/08Y02A20/124
Inventor 汪耀明李为吴亮李传润颜海洋张勤徐铜文
Owner HEFEI CHEMJOY POLYMER MATERIALS CO LTD
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