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Porous lanthanum oxide preparation method

A technology of lanthanum oxide and 3·6H2O, applied in chemical instruments and methods, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the serious eutrophication of water bodies, destroy the ecological environment of water bodies, and threaten the survival of aquatic organisms and human beings Health and other issues, to achieve the effect of saving energy, solving eutrophication, improving survival and human health

Active Publication Date: 2019-05-10
LONGYAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Due to the development of the economy, the extensive use of phosphorus-containing detergents and the discharge of industrial phosphorus-containing wastewater have led to excessive phosphate radical content in the water body, resulting in serious eutrophication of the water body, and the proliferation of algae destroys the ecological environment of the water body, seriously threatening the survival of aquatic organisms and human health

Method used

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  • Porous lanthanum oxide preparation method
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  • Porous lanthanum oxide preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0025] The preparation method of porous lanthanum oxide comprises the following steps:

[0026] Step (1): Add 0.1mol 11.1mL N-methylmorpholine and 0.12mol 13.8mL benzyl chloride into a three-necked flask respectively, heat at 45°C with a magnetic stirrer for 45min to obtain a mixture; filter the mixture with suction , washed twice with ether to obtain the N-methyl-N benzylmorpholine ionic liquid, and the N-methyl-N benzylmorpholine ionic liquid was stored in a desiccator.

[0027] Step (2): Weigh 0.4397g La(NO 3 ) 3 ·6H 2 O and 0.1047g glycerin are respectively placed in the reactor, respectively add deionized water in the reactor, obtain La(NO 3 ) 3 ·6H 2 O solution and glycerol solution;

[0028] Step (3): Add 0.1g of N-methyl-N-benzylmorpholine ionic liquid prepared in step (1) and 1mL of 0.01mol / L polyethylene glycol to the reactor filled with glycerin solution in step (2). Alcohol to obtain mixed solution A;

[0029] Step (4): La(NO 3 ) 3 ·6H 2 Mixed solution A...

Embodiment 2

[0032] The preparation method of porous lanthanum oxide comprises the following steps:

[0033] Step (1): Add 0.1mol 11.1mL N-methylmorpholine and 0.12mol 13.8mL benzyl chloride into a three-necked flask respectively, heat at 45°C with a magnetic stirrer for 45min to obtain a mixture; filter the mixture with suction , washed twice with ether to obtain the N-methyl-N benzylmorpholine ionic liquid, and the N-methyl-N benzylmorpholine ionic liquid was stored in a desiccator.

[0034] Step (2): Weigh 0.4397gLa(NO 3 ) 3 ·6H 2 O and 0.1047g glycerin are respectively placed in the reactor, respectively add deionized water in the reactor, obtain La(NO 3 ) 3 ·6H 2 O solution and glycerol solution;

[0035] Step (3): Add 0.2g of N-methyl-N-benzylmorpholine ionic liquid prepared in step (1) and 1mL of 0.01mol / L polyethylene glycol to the reactor filled with glycerin solution in step (2). Alcohol to obtain mixed solution A;

[0036] Step (4): La(NO 3 ) 3 ·6H 2 Mixed solution A ...

Embodiment 3

[0039] The preparation method of porous lanthanum oxide comprises the following steps:

[0040] Step (1): Add 0.1mol 11.1mL N-methylmorpholine and 0.12mol 13.8mL benzyl chloride into a three-necked flask respectively, and heat with a magnetic stirrer at 45°C for 45min to obtain mixture A; Filtrate with suction, wash twice with ether to obtain N-methyl-N-benzylmorpholine ionic liquid, and store the N-methyl-N-benzylmorpholine ionic liquid in a desiccator.

[0041] Step (2): Weigh 0.4397gLa(NO 3 ) 3 ·6H 2 O and 0.1047g glycerin are respectively placed in the reactor, respectively add deionized water in the reactor, obtain La(NO 3 ) 3 ·6H 2 O solution and glycerol solution;

[0042] Step (3): Add 0.3g of N-methyl-N-benzylmorpholine ionic liquid and 1mL of 0.01mol / L polyethylene glycol prepared in step (1) to the reactor filled with glycerin solution in step (2) Obtain mixed solution A;

[0043] Step (4): La(NO 3 ) 3 ·6H 2 Mixed solution A in O solution and step (3) is ...

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Abstract

The invention discloses a porous lanthanum oxide preparation method which includes the steps: (1) preparing N-methyl-N benzylmorpholine ionic liquid for standby application; (2) measuring out La(NO3)3*6H2O and glycerol, placing the La(NO3)3*6H2O and the glycerol into a reactor and adding deionized water into the reactor to obtain La(NO3)3*6H2O solution and glycerol solution; (3) adding polyethylene glycol and the N-methyl-N benzylmorpholine ionic liquid prepared in the step (2) into the reactor containing the glycerol solution to obtain mixed liquid A; (4) mixing the La(NO3)3*6H2O solution andthe mixed liquid A to obtain mixed liquid B, adjusting the pH (potential of hydrogen) value of the mixed liquid B to be 4-7, and stirring and heating the mixed liquid B; (5) transferring the stirredand heated mixed liquid B to a crucible, and calcining the mixed liquid B to obtain porous lanthanum oxide. The porous lanthanum oxide achieves adsorption of phosphate ions, the problem of water eutrophication is solved, and survival of aquatic organisms and human health level are improved.

Description

technical field [0001] More specifically, the present invention relates to a preparation method of porous lanthanum oxide. Background technique [0002] Ionic liquid refers to a low-temperature molten salt that is liquid at or near room temperature and is composed entirely of anions and cations. As an ionic compound, ionic liquid has a very low melting point. The main reason is that some substituents in its structure are asymmetrical, which prevents ions from stacking regularly into crystals. [0003] Lanthanum oxide is an important product among rare earths. It has good physical and chemical properties and is often widely used in civil, military and high-tech fields. my country has very rich lanthanum resources. La 2 o 3 The application in ceramics, catalysts, photocatalysis, rare earth glass and other fields continues to develop, and the prospect is good. On the one hand: the prospects for environmental governance are better. [0004] At present, the problem of enviro...

Claims

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Application Information

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IPC IPC(8): B01J20/02B01J20/28B01J20/30C02F1/28C02F101/10
Inventor 赵金花黄忠亮王宇松罗江水
Owner LONGYAN UNIV
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