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A kind of modified attapulgite material, preparation method and application thereof

A technology for modifying attapulgite and attapulgite, applied in the field of daily chemical industry, can solve the problems of no visualization and danger, and achieve the effects of reducing dosage, good adsorption effect, and good antibacterial and antifungal effect.

Active Publication Date: 2018-03-16
广州力古贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the acidic substance itself is corrosive and dangerous, and has no visualization function

Method used

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  • A kind of modified attapulgite material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Add 200 mesh attapulgite to 5040 dispersant (sodium polyacrylate dispersant) aqueous solution with a mass fraction of 0.2%, the solid-liquid ratio of attapulgite to dispersant solution is 1:5, stir at high speed for 30 minutes, take The upper suspension was filtered and dried at 105°C.

[0031] 2. Activate the dried attapulgite at 200-250°C for 2 hours, and crush it to 200 mesh.

[0032] 3. Add 1000 g of attapulgite in step 2 to 10 L of copper chloride solution, and at the same time add 2.0 g of sodium polyphosphate as an auxiliary agent, and stir at 60-80° C. for 3 hours at high speed.

[0033] 4. Pressure filtration and washing until the modified attapulgite material is free of chloride ions, and a filter cake is prepared by pressure filtration.

[0034] 5. The resulting filter cake was dried at 105°C and crushed to 200 mesh.

[0035] 6. Extrude the obtained modified attapulgite material through an extrusion granulator to obtain a cylindrical visualized ammonia r...

Embodiment 2

[0039] 1. Add 100 g of 100 mesh attapulgite into 1 L of 3.7% hydrochloric acid solution, stir at high speed for 30 minutes, take the upper suspension, filter, and dry at 105 °C.

[0040] 2. Wash, press filter, dry at 105°C, and crush to 200 mesh.

[0041] 3. Add 98 g of attapulgite purified above to 1000 mL of 0.20 mol / L copper sulfate solution, and add 10 mL of sodium polyphosphate with a mass fraction of 0.5%. Stir at 60-80°C for 3 hours.

[0042] 4. The obtained modified attapulgite material is washed and press-filtered until there is no chloride ion, and a filter cake is prepared by press-filtering.

[0043] 5. Dry the obtained filter cake at 105°C and crush it to 200 mesh

[0044] 6. The modified attapulgite material obtained at the end is made into a 3-8mm spherical visualized ammonia removal and antifungal agent through a rolling granulator.

[0045] 7. The modified attapulgite material prepared in Example 2 was tested for its anti-mildew effect, that is, it was test...

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Abstract

The invention provides a modified attapulgite material and its preparation method and application. The preparation method includes the following steps: (1) Purification: mechanically dispersing the attapulgite by using a dispersant or acid modification Purification; (2) activation; (3) modification: add sodium polyphosphate and copper salt as ion donor to react to obtain modified attapulgite material; (4) remove unstable copper in modified attapulgite material ions and chloride ions to make it into a filter cake; (5) drying and crushing the filter cake; (6) granulation. The ammonia removal material prepared by the invention has the function of visualization when removing ammonia, can avoid the secondary pollution of ammonia, and has excellent adsorption effect and antibacterial and anti-mildew effect at the same time, and is applied in air purification.

Description

technical field [0001] The invention belongs to the technical field of daily chemical industry, and in particular relates to an ammonia-removing and mildew-proof attapulgite material for air purification with indicating function, a preparation method thereof and an application in air purification. Background technique [0002] Ammonia is a colorless gas with a pungent and pungent odor, and is one of the common pollutants in buildings. It mainly comes from concrete building materials, furniture, decoration viscose materials, etc. As these substances change with the ambient temperature and humidity, ammonia gas is slowly released to pollute the indoor environment. Ammonia is irritating and corrosive to the skin and mucous membranes, and high concentrations can cause serious consequences. The national standard indoor air quality standard GB / T18883-2002 stipulates that the maximum allowable concentration of ammonia in the indoor air is 0.20 mg / m3. [0003] At present, there ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/12B01J20/30B01D53/02
Inventor 陈敏珊王勇罗本华李立芬
Owner 广州力古贸易有限公司