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Activated alumina and activated carbon compounded material and preparation method thereof

A technology of composite activated carbon and activated alumina, which is applied in the direction of chemical instruments and methods, separation methods, catalyst carriers, etc., can solve the problems of high cost of recycling and regeneration, restricting the development of activated carbon, and short service life, etc., and achieves easy regeneration, use, and preparation The method is simple and easy to implement, and the effect of low cost

Inactive Publication Date: 2010-11-24
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the continuous improvement of people's demand for activated carbon and the continuous improvement of quality requirements, activated carbon also shows many shortcomings, such as low strength, most of the products are powdery, granular, short service life, high cost of recycling and regeneration, etc., which seriously restricts the use of activated carbon. development and become the focus of the industry

Method used

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  • Activated alumina and activated carbon compounded material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Use aluminum hydroxide and commercially available coconut shell activated carbon as raw materials to prepare activated alumina composite activated carbon material. HNO 3 For the binder:

[0026] Preparation steps:

[0027] (1) Mixing: put the aluminum hydroxide and coconut shell activated carbon powder into the mixer after weighing according to the proportion, and mix for 1 hour.

[0028] (2) Granulation: Put the mixed powder into a granulator, and gradually spray 13wt% dilute HNO 3 350 grams of the solution were granulated.

[0029] (3) Stale: Seal the granulated powder in a plastic bag and store it in a cool place for 24 hours.

[0030] (4) Molding: make spherical particles of 3-10 mm.

[0031] (5) Drying: Put the formed granules in the room to dry.

[0032] (6) Sintering: bury the dried particles in the pre-prepared atmosphere protection sand (graphite:river sand ratio 1:1), put them into the kiln for sintering, heating rate: 200℃ / h The heating rate was raised...

Embodiment 2

[0036] Use aluminum hydroxide and commercially available coconut shell activated carbon as raw materials to prepare activated alumina composite activated carbon material. 13wt% HNO 3 For the binder:

[0037] Preparation steps:

[0038] (1) Mixing: put the aluminum hydroxide and coconut shell activated carbon powder into the mixer after weighing according to the proportion, and mix for 1 hour.

[0039] (2) Granulation: Put the mixed powder into a granulator, and gradually spray 13wt% dilute HNO 3 320 grams of the solution were granulated.

[0040] (3) Stale: Seal the granulated powder in a plastic bag and store it in a cool place for 24 hours.

[0041] (4) Molding: make spherical particles of 3-10 mm.

[0042] (5) Drying: Put the formed granules in the room to dry.

[0043] (6) Sintering: bury the dried particles in the pre-prepared atmosphere protection sand (graphite:river sand ratio 1:1), put them into the kiln for sintering, heating rate: 200℃ / h The heating rate was ...

Embodiment 3

[0048] Use aluminum hydroxide and commercially available coconut shell activated carbon as raw materials to prepare activated alumina composite activated carbon material. 13wt% HNO 3 For the binder:

[0049] Preparation steps:

[0050] (1) Mixing: put the aluminum hydroxide and coconut shell activated carbon powder into the mixer after weighing according to the proportion, and mix for 1 hour.

[0051] (2) Granulation: Put the mixed powder into a granulator, and gradually spray 13wt% dilute HNO 3 410 grams of the solution were granulated.

[0052] (3) Stale: Seal the granulated powder in a plastic bag and store it in a cool place for 24 hours.

[0053] (4) Molding: make spherical particles of 3-10 mm.

[0054] (5) Drying: Put the formed granules in the room to dry.

[0055] (6) Sintering: bury the dried particles in the pre-prepared atmosphere protection sand (graphite:river sand ratio 1:1), put them into the kiln for sintering, heating rate: 200℃ / h The heating rate was ...

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Abstract

The invention provides an activated alumina and activated carbon compounded material and a preparation method thereof. According to a formula, the material comprises the following raw materials in percentage by mass: 40 to 99 percent of aluminum hydroxide, 1 to 60 percent of activated carbon, and 15 to 35 percent of binder. The material is prepared by uniformly mixing, pelleting, ageing, molding, airing, sintering, rinsing, drying and the like. The invention aims to compound the activated carbon with the activated alumina; on the one hand, the material with a certain shape can be processed, the defects of loose shape, low strength, difficult recovery and the like of the activated carbon are overcome, and the material is easy to recycle; and on the other hand, the adsorption property of the activated alumina material is greatly improved. The method has the advantages of simpleness, practicality, readily available raw materials, low cost and suitability for industrial mass production, and can be widely applied to various fields such as industry, agriculture, environmental protection, air purification, water treatment and the like.

Description

technical field [0001] The invention belongs to the field of novel functional materials and composite materials, and in particular relates to a preparation method of activated alumina composite activated carbon material. Background technique [0002] As a carbonaceous material with well-developed pores, activated carbon has been widely used in separation, purification, catalyst, reagent recovery and others, especially in pollution control. However, with the continuous improvement of people's demand for activated carbon and the continuous improvement of quality requirements, activated carbon also shows many shortcomings, such as low strength, most of the products are powdery, granular, short service life, high cost of recycling and regeneration, etc., which seriously restricts the use of activated carbon. development and become the focus of the industry. [0003] With the development of the chemical industry, many new requirements have been put forward for the catalyst carri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01J32/00C02F1/28B01D53/02
Inventor 于岩吴任平叶先锋
Owner FUZHOU UNIV
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