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Basalt fiber felt-loaded aluminum oxide defluorination and adsorption material and preparation method thereof

A technology of basalt fiber and adsorption materials, applied in chemical instruments and methods, aluminum silicate, inorganic chemistry, etc., can solve the problems of material center waste, difficult recovery of powder materials, high cost, etc., to achieve waste reduction, easy recycling, and saving cost effect

Inactive Publication Date: 2014-01-29
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem that the powder material in the alumina defluorination adsorption material is not easy to recycle, and the particles and alumina coated on other solid materials will cause waste of the central part of the material and high cost, the invention provides a basalt fiber felt-loaded alumina Fluorine removal adsorption material and preparation method thereof

Method used

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  • Basalt fiber felt-loaded aluminum oxide defluorination and adsorption material and preparation method thereof
  • Basalt fiber felt-loaded aluminum oxide defluorination and adsorption material and preparation method thereof

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Embodiment 1

[0014] This embodiment provides a fluorine removal adsorption material, which is alumina loaded on basalt fiber mat, and alumina is loaded on the basalt fiber mat as a carrier.

[0015] The preparation method of the basalt fiber felt-loaded alumina defluoridation adsorption material is as follows:

[0016] (1) Weigh a certain amount of aluminum chloride hexahydrate, add deionized water to dissolve, configure a 0.6mol / L aluminum chloride solution, stir at a constant temperature at 50°C, and add it to the mixed solution at a rate of 1 drop per minute Add ammonia water dropwise until pH = 8, and boehmite gel has reacted at this time;

[0017] (2) Boehmite gel is suction filtered, and washed 5 times, to the filtrate is neutral, add a certain amount of deionized water, add the amount of deionized water and step (1) dissolve the used deionized water of aluminum chloride With the same amount, stir at a constant temperature of 80°C, and add a peptizer (1mol / L dilute nitric acid) drop...

Embodiment 2

[0021] This embodiment provides a fluorine removal adsorption material, which is alumina loaded on basalt fiber mat, and alumina is loaded on the basalt fiber mat as a carrier.

[0022] The preparation method of the basalt fiber felt-loaded alumina defluoridation adsorption material is as follows:

[0023] (1) Weigh a certain amount of aluminum chloride hexahydrate, add deionized water to dissolve it, configure it into a 1.0mol / L aluminum chloride solution, stir it at a constant temperature at 70°C, and add it to the mixed solution at a rate of 2 drops per minute Add ammonia water dropwise until pH = 8, at which time the boehmite gel has reacted;

[0024] (2) Boehmite gel is suction filtered, and washed 8 times, to the filtrate is neutral, add a certain amount of deionized water, add the amount of deionized water and step (1) dissolve the used deionized water of aluminum chloride With the same amount, stir at 85°C at constant temperature, and add peptizer (1mol / L dilute nitri...

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Abstract

The invention relates to a basalt fiber felt-loaded aluminum oxide defluorination and adsorption material and a preparation method thereof. The defluorination and adsorption material is basalt fiber felt-loaded aluminum oxide. The preparation method comprises the following steps of preparing boehmite gel from aluminum chloride hexahydrate, ammonium hydroxide and nitric acid; pre-treating basalt fiber for 1-3 hours at 35-600 DEG C; impregnating the pre-treated basalt fiber felt in the prepared boehmite gel for 10-30 minutes, drying, and roasting for 1.5-2 hours at 550-600 DEG C to prepare the basalt fiber felt-loaded aluminum oxide. The basalt fiber felt-loaded aluminum oxide can be used for adsorption and defluorination in the field of water treatment. The basalt fiber felt-loaded aluminum oxide defluorination and adsorption material has the beneficial effects that the defluorination and adsorption material is easy to recycle, the waste of central materials in solid materials is reduced, and the cost is saved.

Description

technical field [0001] The invention relates to a basalt fiber felt-loaded alumina defluorination adsorption material and a preparation method thereof, and relates to the field of water treatment materials. Background technique [0002] Fluorine is an essential trace element for the human body, but excess fluorine can lead to diseases. There are many ways to remove fluorine, including chemical precipitation, flocculation precipitation, reverse osmosis, adsorption and so on. The adsorption method shows great advantages in defluoridation of drinking water due to its low raw material cost and simple process flow, among which alumina defluorination technology is recommended by the United States as the best treatment technology. [0003] In the existing alumina defluorination adsorption technology, alumina is mostly used as powder, granules or coated on other solid solid materials. The recovery of the adsorbent powder is a common problem in the technology of directly using alum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/16B01J20/30
Inventor 梁小平李冬梅左蕊毛新钰刘凯周倩倩王欢
Owner TIANJIN POLYTECHNIC UNIV
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