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Water-retaining modified active carbon material and preparation method thereof

A technology of water-retaining materials and activated carbon, applied in chemical instruments and methods, food science, applications, etc.

Inactive Publication Date: 2012-12-05
YUNNAN RES INST OF TOBACCO SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cigarette water-retaining materials used in industry are all organic materials, and there is no report of inorganic water-retaining materials at present

Method used

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  • Water-retaining modified active carbon material and preparation method thereof
  • Water-retaining modified active carbon material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Prepare 0.2 mol / L ferric chloride solution and 0.4 mol / L sodium hydroxide solution respectively. Under stirring conditions, mix the two solutions at a volume ratio of 1:1, stir for 1 hour, let stand, and age for 24 hours. Add 1 g of activated carbon material for cigarette filter sticks into 100 g of deionized water, stir for 30 minutes, then add 10 g of aged hydroxyl iron reagent, and stir vigorously for 10 hours. The upper layer solution was discarded and washed with deionized water several times until the upper layer water was colorless and transparent. The modified activated carbon was filtered out and dried under vacuum. The obtained modified activated carbon material is ground and then added to the sheet production process to make a sheet containing the modified activated carbon material and added to cigarettes.

Embodiment 2

[0018] Prepare 0.3mol / L ferric nitrate solution and 0.6mol / L sodium hydroxide solution respectively, and mix the two solutions at a volume ratio of 1:1 under stirring conditions, stir for 1 hour, let stand, and age for 24 hours. Add 1 g of activated carbon material for cigarette filter sticks into 100 g of deionized water, stir for 30 minutes, then add 12.5 g of aged hydroxyl iron reagent, and stir vigorously for 10 hours. The upper layer solution was discarded and washed with deionized water several times until the upper layer water was colorless and transparent. The modified activated carbon was filtered out and dried under vacuum. The obtained modified activated carbon material is ground and then added to the sheet production process to make a sheet containing the modified activated carbon material and added to cigarettes.

Embodiment 3

[0020] Prepare 0.4mol / L ferric chloride solution and 0.8mol / L potassium hydroxide solution respectively, and mix the two solutions at a volume ratio of 1:1 under stirring conditions, stir for 1 hour, let stand, and age for 24 hours. Add 1 g of activated carbon material for cigarette filter sticks into 100 g of deionized water, stir for 30 minutes, then add 12.5 g of aged hydroxyl iron reagent, and stir vigorously for 10 hours. The upper layer solution was discarded and washed with deionized water several times until the upper layer water was colorless and transparent. The modified activated carbon was filtered out and dried under vacuum. The obtained modified activated carbon material is ground and then added to the sheet production process to make a sheet containing the modified activated carbon material and added to cigarettes.

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Abstract

The invention relates to a water-retaining modified active carbon material and a preparation method of the active carbon material. The modification is carried out by taking the common active carbon material in a cigarette filter rod as a substrate. An iron carbonyl compound layer is added on the surfaces of the active carbon for a cigarette by an iron carbonyl modifier. The testing results of physical absorption, scanning electron microscope and dynamic water analysis show that the number of pores on the surface of the modified active carbon material is increased, and the adsorption power on the water molecules is increased; and moreover, for the iron carbonyl has a plurality of hydroxy groups, the adsorption capacity of the active carbon material on the water molecules can be strengthened by hydrogen-bond interaction. After the active carbon material is added into the cigarette, the water molecules escape from the material due to high temperature when the cigarette is burned, so that the moisture content in the main stream smoke of the cigarette is increased; and furthermore, the water-retaining material can well meet the water-retaining requirements of the cigarette, and the price is cheap, and applicability and high efficiency can be achieved.

Description

technical field [0001] The invention relates to the technical field of cigarettes, in particular to a water-retaining modified active carbon material and a preparation method thereof, which can increase the moisture content in cigarette smoke. Background technique [0002] Cigarette smoke is a complex aerosol system, which contains a large number of tobacco-specific aroma components. During the process of smoking cigarettes, consumers often feel that the smoke is relatively dry, which greatly affects the quality of cigarettes. This situation is particularly prominent in northern and dry climate areas. The usual solution is to add a moisturizing material to the cigarette (including the tobacco rod and mouth stick), which can release moisture when the cigarette is burned and smoked, thereby increasing the moisture content in the mainstream smoke of the cigarette. The water-retaining material used for cigarettes should have strong water-retaining capacity, and when added to c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/32A24B15/28
Inventor 何沛刘志华王昆淼耿俊韩敬美赵伟刘春波陈永宽缪明明
Owner YUNNAN RES INST OF TOBACCO SCI
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