Method for removing heavy metal ions from tobacco extract

A technology of heavy metal ions and extracts, applied in tobacco, tobacco treatment, application, etc., can solve the problems of limited treatment efficiency, difficult treatment, complicated operation of biological treatment technology, etc., achieve simple steps, improve removal rate, and improve social benefits Effect
CN102406230AActive Publication Date: 2012-04-11CHINA HAISUM ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA HAISUM ENG
Publication Date
2012-04-11

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Abstract

The invention provides a method for removing heavy metal ions from tobacco extract, which is characterized by comprising: filtering the tobacco extract with a pulse filter; subjecting the filtrate to electrolysis in an electrolysis device; and loading the tobacco extract subjected to electrolysis treatment onto a cation exchange resin column to obtain tobacco extract without heavy metal ions. In the invention, most heavy metal ions in the tobacco extract is removed by the electrolysis device, then trace amount of heavy metal ions in the tobacco extract are further removed by the cation exchange resin, and thus, the removal rate of heavy metal ions is increased, and the service life of the resin is prolonged.
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Description

technical field

[0001] The invention relates to a method for removing heavy metal ions in tobacco extract. Background technique

[0002] Tobacco extract is made of raw materials such as tobacco stems, tobacco powder, shredded tobacco leaves and low-grade tobacco leaves, and the water-soluble substances such as tobacco tar are extracted through a continuous extraction process, and then the particles in the extract are removed, and finally reverse osmosis obtained by membrane separation process. The tobacco extract is concentrated, coated on the tobacco sheet substrate, dried to obtain the tobacco sheet, shredded and blended in cigarette production. At present, tobacco flakes have been widely used in cigarettes. For example, the blending rate of well-known international brands has reached 25%, while the blending rate of Chinese cigarette brands is also about 10% on average, and it shows an increasing trend year by year.

[0003] In recent years, the harm of heavy metal ions...

Claims

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