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Method for preparing efficient air purification material

A technology for purifying materials and high-efficiency air, applied in chemical instruments and methods, separation methods, inorganic chemistry, etc., can solve the problems of weak adsorption capacity of pollutants, and achieve the effect of increasing specific surface area and high-efficiency adsorption performance

Inactive Publication Date: 2012-07-18
张国强 +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0007] In the present invention, through the acid activation treatment of natural minerals and the unbundling and dispersion of fiber bundles, the structural micropores naturally existing in mineral crystals are dredged, the specific surface area of ​​mineral fiber powder is increased, and then granulated after reacting with surfactants. A microwave oven is used to make holes, and then roasted at a low temperature to shape the product, thereby making a high-efficiency air purification material with high adsorption performance for air pollutants, which solves the problem of weak adsorption capacity of natural minerals for pollutants

Method used

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  • Method for preparing efficient air purification material

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preparation example Construction

[0027] The specific operation steps of the preparation method of the high-efficiency indoor air purification material provided by the invention are as follows:

[0028] The first step is to weigh the weight of mineral powder (silicon-magnesium mineral fiber), add it to a high-speed mixer with a speed of less than 100rpm, cover it to seal it, and stir for 10 minutes to 30 minutes. During the stirring process, the diluted Use a watering can to spray the acid solution into the mineral powder through the liquid inlet of the mixer, then increase the stirring speed, keep it above 800 revolutions / min (rpm), and disperse for 10-30 minutes to form a semi-dry acid activation treatment;

[0029] The second step is to reduce the stirring speed to below 100rpm, open the sealing cover, add the surfactant quantitatively, seal it again and adjust the rotating speed to above 800rpm, and continue stirring for 20-30min to obtain the acid-activated-organic modified mineral fiber powder.

[0030]T...

Embodiment 1

[0034] The first step is to weigh 50kg of sepiolite mineral powder and 50kg of attapulgite mineral powder, add them to the high-speed mixer with a rotation speed of 100rpm, cover and seal it, and stir for 10 minutes. During the stirring process, add liquid Spray 12L of phosphoric acid with a concentration of 3.0M; then, adjust the rotation speed to 1000rpm, and continue stirring at high speed for 20min;

[0035] Adjust the rotation speed to 80rpm, open the sealing cover, add 2.5kg polyacrylamide, seal again and adjust the rotation speed to 1200rpm, and continue stirring for 30min to obtain acid-activated polyacrylamide modified sepiolite and attapulgite mineral powder.

[0036] The second step is to pour acid-activated polyacrylamide modified sepiolite and attapulgite mineral powder into the granulator, start the granulator, spray water mist, so that the modified clay naturally forms granules, and granulate according to needs Spherical particles with a diameter of 5mm.

[003...

Embodiment 2

[0046] The first step is to weigh 100kg of attapulgite mineral powder, add it to a high-speed mixer with a rotation speed of 100rpm, cover it to seal it, and stir for 30 minutes. During the stirring process, spray phosphoric acid with a concentration of 5M through the liquid inlet 10L; then, adjust the rotation speed to 1000rpm, and continue to stir for 20min;

[0047] Adjust the rotation speed to 80 rpm, open the sealing cover, add 3 kg of polyacrylamide, seal it again and adjust the rotation speed to 1200 rpm, and continue stirring for 30 minutes to obtain acid-activated polyacrylamide modified attapulgite mineral powder.

[0048] The second step is to pour the acid-activated polyacrylamide modified attapulgite mineral powder into the granulator, start the granulator, spray water mist, so that the modified clay naturally forms particles, and the particle size is 2.0mm as required spherical particles.

[0049] In the third step, the spherical particles obtained in the second...

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Abstract

The invention discloses a method for preparing an efficient air purification material. Clay mineral fibers using silicon and magnesium as main components are used as a raw material, and the method comprises the following steps of: activating carbonates and oxides among dissolved fiber granules by adopting semi-dry acid so that fiber bundles are easily dissociated and dispersed by a mechanical force, and dredging structural micropores of mineral fiber crystal so that the specific surface area of the mineral is greatly enlarged; adding a surfactant to increase the adsorption capability of mineral powder on formaldehyde, ammonia and other volatile organic pollutant molecules; and granulating, forming pores, roasting at a low temperature to set the shape of the product, and thus obtaining the efficient indoor air purification material. The material is placed in hollow and porous indoor ornaments of different types such as vases, flowerpots, or textile packages and the like, so that the environment is beautified, the concentration of indoor pollutants such as formaldehyde, ammonia and other harmful gases can be reduced, and the aims of purifying the indoor air, preventing decoration diseases and improving the health level of residents are fulfilled.

Description

technical field [0001] The invention relates to a preparation technology of a silicon-magnesium fiber composite mineral high-performance adsorbent, including the activation and surface organic modification of the mineral fiber surface by a semi-dry method, granulation, combined with microwave pore-making technology, roasting and shaping technology, etc. Technical solutions. Specifically, it uses pre-enriched fiber-structured microporous minerals to prepare indoor pollutants such as formaldehyde, ammonia, and volatile organic compounds with high-efficiency adsorption capacity through acid activation, surface modification, granulation, pore-making, and roasting. Silicon-magnesium mineral composite adsorbent is used to fill interior decorations, beautify the environment and purify the air. Background technique [0002] Human beings spend at least 70% of their time indoors, and the urban population, especially infants, young children, the elderly, the weak, and the disabled, sp...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/16B01D53/04
Inventor 张国强汤庆国
Owner 张国强
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