Method for removing chloride ions from paper-making reconstituted tobaccos

Abstract

A method for removing chloride ions from paper-making reconstituted tobaccos is used for treating a tobacco extract with anion exchange resin to remove the chloride ions. The method comprises the steps of conveying the tobacco extract at a concentration (a solid content) of 4-10% into a storage tank, conveying into an anion exchange column when the temperature is controlled at 40-45 DEG C, allowing the tobacco extract to completely pass through the anion exchange resin within 5-7min, adding clear water into the storage tank for rinsing, after the clear water passes through the ion exchange column completely, merging the clear water and liquid obtained in the previous step to form a dechlorinated tobacco extract, adding an appropriate amount of self-prepared composite organic acid to regulate a pH (potential of hydrogen) value of the tobacco extract to be 4.6-4.8, and directly conveying to a refining and concentration working section. The method effectively reduces a chloride ion content in the tobacco extract and ensures a high product yield; the anion exchange resin can be recycled for many times after recovered and activated by a correct method; and the sensory quality of the prepared dechlorinated tobacco extract is not changed obviously.

Description

technical field [0001] The invention relates to a process for removing chloride ions from tobacco extracts by papermaking methods, which realizes the adjustable and controllable chemical components of reconstituted tobacco leaves by papermaking methods, and specifically uses anion exchange resins to treat tobacco extracts to remove chlorine. Ions and resins can be recycled after recovery, activation and regeneration. The invention belongs to the technical field of reconstituted tobacco leaf production in the tobacco industry. Background technique [0002] Reconstituted tobacco leaf is a homogenized tobacco sheet, which is mainly composed of tobacco raw materials or low-grade tobacco leaves that are not suitable for cigarette processing, adding adhesives and other additives. Reconstituted tobacco has become a very important raw material for cigarettes due to its advantages of low cost, good filling ability and the ability to reduce tar content in smoke, and the proportion of...

AI Technical Summary

Problems solved by technology

Its disadvantages are: (1) the first-stage extraction liquid is discharged after sewage treatment, which increases the load of sewage treatment and causes the loss of some active ingredients; The method is not conducive to saving water resources, and at the same time prolongs the process line of the extraction section; (3) The first-stage extract contains a large amount of tobacco active ingredients, which also loses a large amount of tobacco active ingredients while the chloride ion is reduced, and the raw materials are not fully extracted. Utilization, in fact, this method is exchanged for the decline of chloride ions at the expense of raw material utilization

This method also has obvious disadvantages: (1) the first extraction is carried out with ethanol aqueous solution, which greatly increases the cost of production, equipment investment and management, and it is difficult to realize industrial production; (2) after 40%-80% ethanol extraction , the content of aroma-causing substances and other effective tobacco components will be greatly lost, which will affect the quality of the coating liquid and reconstituted tobacco leaves; (3) only the secondary extract is used for the preparation of reconstituted tobacco leaf coating liquid after two extractions, which reduces the utilization of raw materials rate, while improving the control requirements of the coating liquid flavoring link

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