Analcite and synthesis method thereof

A synthesis method and analcite technology, which are applied in chemical instruments and methods, molecular sieves and alkali exchange compounds, inorganic chemistry, etc., can solve the problem of high cost of preparation methods, achieve simple and easy preparation methods, promote the growth of crystals, promote The effect of continuing to grow

Active Publication Date: 2019-06-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with conventional heating methods,

Method used

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  • Analcite and synthesis method thereof
  • Analcite and synthesis method thereof
  • Analcite and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take 5 g of sodium hydroxide and 5 g of sodium aluminate, place them in 50 mL of distilled water, and stir until all are dissolved. Add 12 g of white carbon black and mix well. Then take out 50% of the entire material and place it in an oven at 50°C for 30h. Mix well with the remaining materials. The reactant obtained in the previous step is then placed in an oven and dried at 120°C until the water is completely evaporated. Then put the resulting reactant dry glue on the upper part of the reactor, and place 15 mL of water at the bottom of the reactor (the reactor volume is 100 mL). Then the reactor was sealed and placed in an oven for crystallization at 180°C for 72 hours. The obtained product was washed 4 times with distilled water to neutral, and dried at 120°C for 12 hours. The obtained sample number was CL1. The obtained sample was as figure 1 As shown, it is pure analcime and contains no other impurities.

Embodiment 2

[0034] Take 4 g of potassium hydroxide and 1 g of sodium aluminate, place them in 60 mL of distilled water, and stir until all are dissolved. Add 7 g of white carbon black and mix well. Then take out 40% of the whole material and place it in an oven at 55°C for 35h. Mix well with the remaining materials. The reactant obtained in the previous step is then placed in an oven and dried at 110°C until the water is completely evaporated. Then put the resulting reactant dry glue on the upper part of the reactor, and put 5 mL of water at the bottom of the reactor (the reactor volume is 100 mL). Then the reactor was sealed, and the reactor was placed in an oven for crystallization at 170°C for 72 hours. The obtained product was washed 4 times with distilled water to neutrality, and dried at 120°C for 12 hours. The obtained sample was analcime, numbered CL2.

Embodiment 3

[0036] Take 7 g of lithium hydroxide and 3 g of sodium aluminate into 100 mL of distilled water, and stir until all are dissolved. Add 10 g of silica gel and mix well. Then take out 45% of the entire material and place it in an oven at 60°C for 28h. Mix well with the remaining materials. The reactant obtained in the previous step was then placed in an oven and dried at 130°C until the water was completely evaporated. Then put the resulting reactant dry glue on the upper part of the reactor, and place 20 mL of water at the bottom of the reactor (the reactor volume is 100 mL). Then the reactor was sealed and placed in an oven for crystallization at 190°C for 32 hours. The obtained product was washed 4 times with distilled water to neutral, and dried at 120°C for 12 hours. The obtained sample was analcime, numbered CL3.

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Abstract

The invention discloses analcite and a synthesis method thereof, wherein the type of the crystal is analcite, the morphology comprises a bulk shape and a spherical shape, and the analcite has a largeparticle size. The synthesis method comprises: uniformly mixing an inorganic alkali, a silicon source, an aluminum source and water according to a certain ratio to obtain a silicon-aluminum gel, carrying out aging treatment on part of the obtained silicon-aluminum gel, mixing the aged silicon-aluminum gel and the remaining part, preparing a dry gel, carrying out crystallization treatment, separating, washing, and drying to obtain analcime. According o the present invention, the prepared analcite has large particle size, and the preparation method is simple and easy to perform.

Description

Technical field [0001] The invention belongs to the field of porous inorganic material synthesis, in particular to an analcime and a synthesis method thereof. Background technique [0002] Analcime has the characteristics of strong ion exchange capacity, strong surface adsorption, good anti-fouling and anti-redeposition effects, non-toxic, non-polluting, and good stability. It can be used in detergents, catalysts, adsorption and separation and other fields; especially in water purification And in the field of contaminated soil remediation, analcime can lock and remove toxic heavy metal ions, which plays a huge role in environmental governance. At present, the pollution of heavy metals in the soil of domestic rivers and rivers is becoming more and more serious. Analcime is an extremely important adsorbent to solve this problem. [0003] At present, the particle size of analcime synthesized by conventional methods is on the order of micrometers, in the range of one to ten micrometer...

Claims

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Application Information

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IPC IPC(8): C01B39/46
Inventor 范峰凌凤香张会成王少军杨春雁
Owner CHINA PETROLEUM & CHEM CORP
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