Method for nitrate removing from regenerated tobacco leaf with paper-making process

Abstract

The invention discloses a method for nitrate removing from regenerated tobacco leaf with a paper-making process. Anion exchange resin is used for processing a tobacco extracting solution, and nitrate ion removing is carried out. The method comprises the steps that the anion exchange resin with the weight of 0.05-0.20 time is added into the tobacco extracting solution with the concentration (solid content) of 4%-10% under normal temperature, stirring is carried out for 5-7 minutes, filtering is carried out through a screen with more than 100 meshes, then clean water of 0.3-0.5 time is used for washing the resin, liquid parts are merged to obtain a tobacco extracting solution after denitration, a proper amount of self-prepared composite organic acid is added to adjust the pH value of the tobacco extracting solution into 4.6-4.8, and the tobacco extracting solution can be directly conveyed to a refining concentration workshop section. According to the method, the content of nitrate ions in the tobacco extracting solution is effectively lowered, meanwhile, the high yield of products is guaranteed, the used anion exchange resin is recycled and activated in a correct way and then can be recycled for many times, and the sensory quality of the prepared tobacco extracting solution after denitration is not changed obviously.

Description

Technical field [0001] The present invention involves a process of nitrate ionic removal in a papermaking tobacco extraction solution to realize the adjustable and controllable tobacco leaves chemical components. It is specifically used to use pine -ion exchange resin to treat tobacco extract to remove it to remove it.Nitrate ions, resin can be recycled by recycling, activation, and regeneration.The present invention belongs to the field of tobacco industry reconstruction of tobacco production technology. Background technique [0002] Cultivated tobacco leaf is a kind of average tobacco slice, which is mainly composed of adhesives and other additives that are not suitable for smoke -processed tobacco -processing tobacco -processing tobacco processing.Due to the advantages of low cost, good filling, and reducing scor oil content in smoke, it has become a very important cigarette raw material, and its use ratio will also increase year by year.At present, the production of tantal le...

AI Technical Summary

Problems solved by technology

[0004] The Chinese invention patent "A Method for Controlling Chlorine and Nitrate Content in Tobacco Extraction or Extract" (application number: 200810219773.3) discloses the extraction or extraction of tobacco raw materials in the production of reconstituted tobacco leaves by papermaking method, and controls its concentration to reach 1-30%, the solvent is water or an alcohol solution with a concentration lower than 30%, and then put it into a nanofiltration membrane circulation device for circulation filtration to obtain the retained liquid intercepted by the nanofiltration membrane after removing chlorine and nitrate. The liquid is used as the material coated and backfilled on the base sheet in the production of reconstituted tobacco leaves by papermaking method. Its disadvantages are: (1) the original active ingredients of the membrane-filtered tobacco will be lost, which is not conducive to the intrinsic quality of the sheet product; (2) It is easy to form an adhesion layer on the surface, which significantly reduces the flux of the membrane; (3) After the operation, the cleaning of the membrane is difficult and the durability of the membrane is poor

(4) The initial investment is too high, and the later maintenance costs are relatively high, making it impossible to achieve large-scale industrialization

[0005] The Chinese invention patent "A Reconstituted Tobacco Leaf Coating Liquid Component and Component Group Chemical Kitchen Combination, Coupling Preparation and Process" (Application No.: 201210008209.3) discloses the use of low-grade and waste tobacco leaves and stems, after pre-soaking , enzymatic extraction or extraction to obtain tobacco leaves or tobacco stems enzymatic extraction or extraction liquid or tobacco leaves, tobacco stems mixed extraction or extraction liquid, and then undergo enzymatic hydrolysis of chemical components and component groups in the chemical kitchen, Mera De reaction conversion, membrane separation or concentration or column separation, freeze separation, alcohol precipitation and other combined and coupled preparation processes to selectively transform or reduce or remove tobacco leaves, tobacco stem extraction or extraction liquid or tobacco leaves, tobacco stem extraction or The disadvantages of extracting certain components and component groups in the mixed solution are: (1) Adding a large amount of industrial additives to the coating solution is not conducive to the intrinsic quality of the thin film product; (2) The leaching liquid film concentration treatment The amount of water is relatively small, but the water flux of membrane treatment is large, and the membrane treatment needs to be supplemented with concentration treatment, which will cause a lot of waste of water resources. (3) The process is complicated and the cost is high, and large-scale application cannot be realized