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A kind of preparation method of high-strength pectin zirconium hydroxide microsphere adsorbent

A zirconium hydroxide and microsphere adsorption technology, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., to avoid loss and pollution problems, uniform particle size, significant biological safety and protection effect of ability

Active Publication Date: 2022-06-28
SHANXI XINHUA CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problems existing in the existing zirconium hydroxide molding materials, the present invention provides a preparation method of high-strength pectin zirconium hydroxide microsphere adsorbent

Method used

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  • A kind of preparation method of high-strength pectin zirconium hydroxide microsphere adsorbent
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preparation example Construction

[0022] A preparation method of high-strength pectin zirconium hydroxide microsphere adsorbent, comprising the following steps:

[0023] 1) Mix zirconium hydroxide powder, diammonium bicarbonate, and polyethylene glycol, and add deionized water, and ultrasonically make the mixture form a uniformly dispersed suspension;

[0024] 2) Add deionized water to the pectin and stir until the pectin is completely dissolved;

[0025] 3) adding the suspension obtained in step 1) to the pectin solution in step 2), stirring evenly at 80-95° C. to obtain a white gel liquid;

[0026] 4) drop the white gel liquid obtained in step 3) into dimethyl silicone oil through a dropper, filter and wash the white particles under the dimethyl silicone oil, and vacuum dry to obtain pectin zirconium hydroxide microsphere adsorbent.

[0027] In the present invention, using pectin as a binder, polyethylene glycol as a stabilizer, and ammonium bicarbonate as a regulator, the zirconium hydroxide powder is form...

Embodiment 1

[0037] A high-strength pectin zirconium hydroxide microsphere adsorbent and a preparation method thereof, comprising the following steps:

[0038] 1) Commercial zirconium hydroxide was ground through a 200-mesh sieve, quantitatively weighed 100g of zirconium hydroxide powder, 1g of diammonium bicarbonate, 0.1g of polyethylene glycol, added 1000g of deionized water, and ultrasonicated at 80Hz for 3h to make it form a uniformly dispersed suspension;

[0039] 2) above-mentioned ammonium bicarbonate can also be replaced with ammonium bicarbonate or ammonium carbonate;

[0040] 3) the molecular weight of above-mentioned polyethylene glycol is 2000;

[0041] 3) Quantitatively weigh 10g of pectin, add 240g of deionized water, and stir at 30°C for 3h until dissolved;

[0042] 4) adding the suspension obtained in step 1) to the pectin solution in step 3), and stirring at 90° C. to obtain a white gel liquid;

[0043] 5) Using a dropper with a diameter of 0.8 mm, the white gel liquid ob...

Embodiment 2

[0047] A high-strength pectin zirconium hydroxide microsphere adsorbent and a preparation method thereof, comprising the following steps:

[0048] a. The commercial zirconium hydroxide was ground and passed through a 200-mesh sieve, quantitatively weighed 100g of zirconium hydroxide powder, 1.5g of diammonium bicarbonate, 0.1g of polyethylene glycol, added 1000g of deionized water, and ultrasonicated at 80Hz for 3h to make to form a uniformly dispersed suspension;

[0049] b. The above-mentioned ammonium bicarbonate can also be replaced by ammonium bicarbonate or ammonium carbonate;

[0050] c. The molecular weight of the above polyethylene glycol is 2000;

[0051] d. Quantitatively weigh 15g of pectin, add 260g of deionized water, and stir at 35°C for 3h until dissolved;

[0052] e. adding the suspension obtained in step 1) to the pectin solution in step 3), stirring at 90° C. to obtain a white gel liquid;

[0053] f. The white gel liquid obtained in step 4) was added drop...

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Abstract

The invention relates to the field of preparation of zirconium hydroxide adsorbent, in particular to a preparation method of high-strength pectin zirconium hydroxide microsphere adsorbent. It includes the following steps: 1) mixing zirconium hydroxide powder, diammonium bicarbonate, and polyethylene glycol, adding deionized water, and ultrasonically making the mixed solution form a uniformly dispersed suspension; 2) adding deionized water to the pectin, stirring Until the pectin is completely dissolved; 3) Add the suspension obtained in step 1) to the pectin solution in step 2), and stir evenly to obtain a white gel liquid; 4) Put the white gel liquid obtained in step 3) through drops The tube was added dropwise into simethicone, and the white particles under the simethicone were filtered, washed, and vacuum-dried to obtain pectin zirconium hydroxide microsphere adsorbent. The pectin zirconium hydroxide microsphere adsorbent, its one-step hot-melt / condensation preparation method also avoids the loss and pollution problems caused by the crushing and screening operation of the traditional process, and is convenient for the industrial production and application of zirconium hydroxide.

Description

technical field [0001] The invention relates to the field of preparation of a zirconium hydroxide adsorbent, in particular to a preparation method of a high-strength pectin zirconium hydroxide microsphere adsorbent. Background technique [0002] Zirconium hydroxide is an amphoteric adsorption material that is both acidic and basic. It has a high specific surface area and a certain porosity, high surface hydroxyl content and strong adsorption capacity. Therefore, it has attracted the attention of scholars in the field of protection at home and abroad. In the protection research of Viex (VX), Soman (GD), mustard gas (HD), chlorine, phosgene, hydrogen chloride, dimethyl methylphosphonate (DMMP), sulfur dioxide, ammonia, etc. , This high specific surface, hydroxyl-rich commercial zirconium hydroxide powder usually needs to be shaped and granulated to meet the hardness and strength requirements of industrial products before it can be used for commodity protection of toxic and har...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30
CPCB01J20/24B01J20/06B01J20/28021
Inventor 武越梁栋赵婷崔洪张昊齐嘉豪金彦任孙晓敏王德周郭军军
Owner SHANXI XINHUA CHEM
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