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A cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material and its preparation method and application

A technology of aluminum phosphate molecular sieve and adsorption material, applied in the direction of molecular sieve characteristic aluminum phosphate, molecular sieve compound, molecular sieve and alkali-exchanged phosphate, etc., can solve the problems of high production cost, cumbersome preparation process, weak selectivity, etc., and achieve strong adsorption effect, the effect of reducing the amount of release

Active Publication Date: 2020-06-16
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There have been related reports on the use of molecular formula-like compounds in cigarette filters, but overall, the removal effect on harmful components is not good, and the selectivity is not strong; in addition, the reported preparation process is cumbersome and the production cost is high

Method used

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  • A cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material and its preparation method and application
  • A cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material and its preparation method and application
  • A cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material and its preparation method and application

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Embodiment 1

[0036] A method for preparing a cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material, comprising the following steps

[0037] Step (1), preparation of CoAPO-11 initial gel: add orthophosphoric acid aqueous solution to aluminum isopropoxide aqueous solution, stir for 1.9 hours, under stirring state, add cobalt acetate aqueous solution drop by drop, continue to stir for 28 minutes after adding, then In the state of stirring, diisopropylamine was added dropwise, and stirring was continued for 1.9 hours after the addition, and the initial gel of CoAPO-11 was obtained;

[0038]Wherein, the molar ratio of the total consumption of cobalt acetate, aluminum isopropoxide, orthophosphoric acid, diisopropylamine and water is x:y:1:1:79, wherein x+y=1, x=0.02;

[0039] The total consumption of the water is the sum of the amount of water contained in the orthophosphoric acid aqueous solution, the amount of water contained in the aluminum isopropoxide aq...

Embodiment 2

[0044] A method for preparing a cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material, comprising the following steps

[0045] Step (1), preparation of CoAPO-11 initial gel: add orthophosphoric acid aqueous solution to aluminum isopropoxide aqueous solution, stir for 2.1 hours, under stirring state, add cobalt acetate aqueous solution drop by drop, continue to stir for 32 minutes after adding, then In the state of stirring, add diisopropylamine dropwise, and continue to stir for 2.1 hours after the addition, to obtain the initial gel of CoAPO-11;

[0046] Wherein, the molar ratio of the total consumption of cobalt acetate, aluminum isopropoxide, orthophosphoric acid, diisopropylamine and water is x:y:1:1:81, wherein x+y=1, x=0.02;

[0047] The total consumption of the water is the sum of the amount of water contained in the orthophosphoric acid aqueous solution, the amount of water contained in the aluminum isopropoxide aqueous solution and...

Embodiment 3

[0052] A method for preparing a cobalt-containing modified aluminum phosphate molecular sieve flue gas adsorption material, comprising the following steps

[0053] Step (1), preparation of CoAPO-11 initial gel: add orthophosphoric acid aqueous solution to aluminum isopropoxide aqueous solution, stir for 2.1 hours, under stirring state, add cobalt acetate aqueous solution drop by drop, continue to stir for 32 minutes after adding, then In the state of stirring, add diisopropylamine dropwise, and continue to stir for 2.1 hours after the addition, to obtain the initial gel of CoAPO-11;

[0054] Wherein, the molar ratio of the total consumption of cobalt acetate, aluminum isopropoxide, orthophosphoric acid, diisopropylamine and water is x:y:1:1:81, wherein x+y=1, x=0.1;

[0055] The total consumption of the water is the sum of the amount of water contained in the orthophosphoric acid aqueous solution, the amount of water contained in the aluminum isopropoxide aqueous solution and ...

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Abstract

The invention relates to a cobalt-containing modified aluminophosphate molecular sieve smoke adsorbing material as well as a preparation method and application thereof, belonging to the technical field of cigarettes. The preparation method of the material comprises the following processing steps of preparation, crystallization, drying and calcination of CoAPO-11 initial gel; preparing the cobalt-containing modified aluminophosphate molecular sieve smoke adsorbing material which is excellent in crystallization; adding the prepared material in the middle of a cigarette filter, and testing the smoke absorbing effect of the material. The result indicates that the material has an excellent adsorbing effect on hydrogen cyanide and crotonaldehyde. According to the preparation method provided by the invention, the raw materials are low in cost, the crystallization condition is relatively mild, and the energy consumption is low. The prepared material can be used for effectively reducing the release amount of the hydrogen cyanide and the crotonaldehyde in the smoke after lowering the cigarette filter, and the harm reduction effect is outstanding.

Description

technical field [0001] The invention belongs to the technical field of cigarettes, and in particular relates to a cobalt-containing modified aluminum phosphate molecular sieve smoke adsorption material and a preparation method and application thereof. Background technique [0002] With the continuous improvement of people's living standards, human beings generally pay more attention to health and the environment, and the health and environmental impacts of smoking have attracted more and more attention. The World Tobacco Organization has long attached great importance to the reduction of tar and harm of cigarettes, and all countries have responded positively. As one of the pillar industries of China's economic development, the cigarette industry has higher and higher requirements for cigarettes in the market. On the premise of not affecting the sensory comfort of consumers, reducing the harmful components in cigarette smoke has always been a research hotspot in the tobacco i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B37/06C01B39/54B01J20/02B01J20/30A24D3/06
CPCA24D3/06B01J20/0225B01J20/0292C01B37/065C01B39/54C01P2002/72C01P2002/80C01P2006/12C01P2006/14C01P2006/16
Inventor 王亚明郑青叶刘志华蒋丽红何沛
Owner CHINA TOBACCO YUNNAN IND
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