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Porous particle compound material with adsorption and reaction capacity and preparation technique material

A technology of porous particles and composite materials, applied in applications, household utensils, ceramic products, etc., can solve problems such as difficult operation, slow reaction speed, and a large amount of dust, so as to improve the reaction speed and degree of reaction, and improve the reaction speed and reaction degree, rapid adsorption and the effect of reaction conversion

Inactive Publication Date: 2008-12-24
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the treatment of liquid pollutants, especially during rapid treatment, a large amount of dust will be generated, causing additional environmental pollution and also bringing difficulties to the operation
[0005] For the reaction of solid materials in contact with liquid, the reaction speed and completeness of the reaction are controlled by the specific surface area of ​​the material. Pure lime in the form of powder or block has a small specific surface area and a slow reaction speed, which makes the treatment of pollutants more efficient. not tall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Take quicklime 75%, bentonite 12%, attapulgite 13% batching by mass percentage; And add the additive that accounts for the first three powder total mass 4%, additive is made up of NaCl by mass ratio: KCl: CaCl 2 :MgCl 2 =1.2: 1.2: 0.8: 1; then add activated carbon accounting for 5% of the total powder mass of the aforementioned unslaked lime, bentonite and attapulgite as a pore-forming agent, mix evenly, and prepare the base material;

[0019] (2) roll forming to φ9~10mm spherical particle composite blank with a disc type granulator;

[0020] (3) The prepared pellets of the granular composite material are dried, and finally heat-preserved and sintered at 650° C. for 3 hours to obtain the porous granular composite material.

Embodiment 2

[0022] (1) Take 40% of quicklime, 25% of bentonite, and 35% of attapulgite ingredients by mass percentage, add an additive accounting for 9% of the total mass of the powder of the first three, and the additive is composed of NaCl by mass ratio: KCl: CaCl 2 :MgCl 2 =1: 1: 0.8: 1, then add activated carbon accounting for 15% of the total mass of the powder of the aforementioned quicklime, bentonite and attapulgite as a pore-forming agent, mix evenly, and prepare the base material;

[0023] (2) roll forming to φ9~10mm spherical particle composite blank with a disc type granulator;

[0024] (3) The prepared pellets of the granular composite material are dried, and finally heat-preserved and sintered at 800° C. for 0.5 hour to obtain the porous granular composite material.

Embodiment 3

[0026] (1) Weigh 60% of quicklime, 20% of bentonite, and 20% of attapulgite ingredients by mass percentage, add an additive accounting for 6% of the total mass of the first three powders, and the additive is composed of NaCl by mass ratio: KCl: CaCl 2 :MgCl 2 =1: 0.8: 0.8: 1.2, then add activated carbon accounting for 10% of the total mass of the powder of the aforementioned quicklime, bentonite and attapulgite as a pore-forming agent, mix evenly, and prepare the base material;

[0027] (2) Preparing φ9~10mm spherical particle composite blanks with extrusion spheronization equipment;

[0028] (3) The prepared pellets of the granular composite material were dried in the shade, and finally kept and sintered at 750° C. for 1 hour to obtain the porous granular composite material.

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PUM

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Abstract

The present invention discloses a porous granule composite material with absorption and reaction capacities and a preparation technology thereof. The porous granule composite material is a spherical porous granule material containing quicklime and comprises the components of the quicklime, attapulgite, bentonite, certain quantity of slat additives and active carbon used as pore-forming agent to be calcined in high temperature to obtain the porous granule composite material. The porous granule composite material has large specific surface area and through holes widely distributed on the specific surface; when being contacted with liquid material, the porous granule composite material has high reaction speed and reaction degree; the porous granule composite material also has the effect of obstructing a great deal of fluid contamination and the effect of preventing harmful substance from seeping into the environmental soil. The granule material can be used for the occasion under the requirement of fast processing acid or alkali liquid contamination.

Description

1. Technical field [0001] The invention relates to a spherical porous granular material containing quicklime, which can be used for rapid absorption, containment and separation treatment in emergency accidents of acidic or alkaline liquid harmful pollutants. 2. Background technology [0002] For emergency accidents of liquid hazardous pollutants that occur during land transportation, the first step in the treatment is to block and intercept the pollutants on the spot. Quicklime is a good material for absorption and fixation. It can chemically react with strong acid and strong alkali to form calcium-containing salts, so that inorganic substances can be locked and then recycled. Based on the above characteristics, quicklime can be used in the field of pollutant treatment . [0003] However, if pure lime is used for the treatment of liquid harmful pollutants, there are some disadvantages: [0004] During the treatment of liquid pollutants, especially during rapid treatment, a...

Claims

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Application Information

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IPC IPC(8): B01J20/04B01J20/12B01J20/30C04B38/00
Inventor 董寅生储成林郭超盛晓波吴魏尹立红浦跃朴吴玉玲
Owner SOUTHEAST UNIV
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