A kind of preparation method of high-efficiency air adsorption material

An adsorption material and high-efficiency air technology, applied in chemical instruments and methods, other chemical processes, deodorization, etc., can solve the problems of unsatisfactory effect, unenvironmental cost, and difficulty in reducing, and achieve ultra-high sterilization effect, raw materials Natural environmental protection, simple and mild preparation conditions

Active Publication Date: 2020-10-30
桐源(上海)网络技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] At present, the air adsorption materials on the market are mainly activated carbon and other industrial adsorption materials. Activated carbon is physical adsorption, and its effect is not satisfactory.
And some other industrially produced adsorption materials such as silica gel, molecular sieve, etc., have good adsorption effect, but they are difficult to reduce, not environmentally friendly and costly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of high-efficiency air adsorption material is characterized in that comprising the following steps:

[0041] (1) After the slurry of 2% by mass coniferous unbleached kraft pulp is refined in a single mill, deliquified and concentrated to 10% by mass, 5% sodium hydroxide solution is added to the concentrated solution, mixed and stirred, and the temperature is raised to After reacting at 80°C for 1 hour, neutralize the fiber pulp concentrated to a concentration of 25% by weight;

[0042] (2) Add the mixed solution of silver nitrate and lanthanum nitrate to the fiber pulp in step 1 for thorough mixing, then add it to a twin-shaft mixer and defibrate at a screw speed of 2000rpm for 15 minutes to obtain a microfibril plant fiber slurry, nitric acid The concentration of silver nitrate in the mixed solution of silver and lanthanum nitrate is 0.3mol / L, and the concentration of lanthanum nitrate is 0.003mol / L; the ratio of fiber pulp to the mixed solution is...

Embodiment 2

[0046] A preparation method of high-efficiency air adsorption material is characterized in that comprising the following steps:

[0047] (1) After the slurry of 2% by mass coniferous unbleached kraft pulp is refined in a single mill, deliquified and concentrated to 10% by mass, 5% sodium hydroxide solution is added to the concentrated solution, mixed and stirred, and the temperature is raised to After reacting at 80°C for 1 hour, neutralize the fiber pulp concentrated to a concentration of 25% by weight;

[0048] (2) Add the mixed solution of silver nitrate and lanthanum nitrate to the fiber pulp in step 1 for thorough mixing, then add it to a twin-shaft mixer and defibrate at a screw speed of 2000rpm for 15 minutes to obtain a microfibril plant fiber slurry, nitric acid The concentration of silver nitrate in the mixed solution of silver and lanthanum nitrate is 0.1mol / L, and the concentration of lanthanum nitrate is 0.001mol / L; the ratio of fiber pulp to the mixed solution is...

Embodiment 3

[0052] A preparation method of high-efficiency air adsorption material is characterized in that comprising the following steps:

[0053] (1) After the slurry of 2% by mass coniferous unbleached kraft pulp is refined in a single mill, deliquified and concentrated to 10% by mass, 5% sodium hydroxide solution is added to the concentrated solution, mixed and stirred, and the temperature is raised to After reacting at 80°C for 1 hour, neutralize the fiber pulp concentrated to a concentration of 25% by weight;

[0054] (2) Add the mixed solution of silver nitrate and lanthanum nitrate to the fiber pulp in step 1 for thorough mixing, then add it to a twin-shaft mixer and defibrate at a screw speed of 2000rpm for 15 minutes to obtain a microfibril plant fiber slurry, nitric acid The concentration of silver nitrate in the mixed solution of silver and lanthanum nitrate is 0.5 mol / L, and the concentration of lanthanum nitrate is 0.005 mol / L; the ratio of fiber pulp to the mixed solution ...

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Abstract

The invention discloses a preparation method of a high-efficiency air absorbing material. The preparation method comprises the following steps: (1) after slurry is subjected to refining treatment, de-liquoring and concentrating, adding a sodium hydroxide solution in a concentrated solution, mixing and stirring, increasing the temperature to 80 DEG C, reacting for 1 hour and then neutralizing and concentrating to 25 percent by weight of fiber pulp; (2) adding a silver nitrate and lanthanum nitrate mixed solution for fully mixing and then defiberizing to obtain micro-filament plant fiber slurry;(3) stirring and mixing the fiber pulp and fermentation mother liquor, introducing acetobacter xylinum for aerated culture, adding the micro-filament plant fiber slurry for uniform stirring and performing static culture to obtain bacterial cellulose cross-linked colloidal liquid; (4) in the colloidal liquid, adding a filling agent for uniform stirring, then adding a NaOH solution and after treatment, filtering, cleaning and granulating. The high-efficiency air absorbing material prepared by the preparation method disclosed by the invention realizes super adsorption ability to PM2.5 and otherharmful particles, meanwhile has a sterilizing effect and is natural and environmentally friendly in raw material, and simple and mild in preparation conditions.

Description

technical field [0001] The invention relates to a high-efficiency air adsorption material and a preparation method thereof. Background technique [0002] Air purification adsorption material refers to the adsorption material that is mainly used in household life to control indoor environmental pollution. Mainly include: activated silicon, activated carbon, activated alumina. [0003] Air purification adsorption materials generally have the following characteristics: large specific surface area and strong adsorption capacity; high adsorption performance for gases and rapid adsorption; environmental protection, no pollution, and low manufacturing cost. The air-purifying adsorption material can effectively absorb harmful substances such as formaldehyde, benzene, and xylene released from home decoration. Indoor air pollution is widely present in various closed buildings such as living rooms, and bad indoor air is causing serious harm to human health. The World Environment Con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30B01D49/00A61L9/014
CPCA61L9/014B01D49/00B01J20/24B01J20/28054
Inventor 秦艳华
Owner 桐源(上海)网络技术有限公司
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