Method for preparing organic solvent adsorbing material

A technology of adsorption materials and organic solvents, applied in the field of preparation of organic solvent adsorption materials, can solve the problems of difficult removal of reactants, no patents or public reports, etc., and achieve excellent organic solvent adsorption performance, thorough and uniform reaction, and uniform silicon-aluminum ratio Effect

Active Publication Date: 2010-10-06
马军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] NaCl (or NaAlCl) produced due to the reaction 4 ) will cause the molecular sieves to stick together, and the reactants are not easy to remove. Using Y-type molecular sieves and SiCL 4 It is necessary to develop special eq

Method used

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  • Method for preparing organic solvent adsorbing material
  • Method for preparing organic solvent adsorbing material
  • Method for preparing organic solvent adsorbing material

Examples

Experimental program
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Example Embodiment

[0032] The preparation method of an organic solvent adsorption material of the present invention includes the following steps:

[0033] a). Molecular sieves with a diameter of 1-3 microns are used as raw materials to make molecular sieve paper; the diameter of the molecular sieve is chosen to be 1-3 microns because the slurry is easy to form a suspension under this scale, which is convenient for making molecular sieve paper .

[0034] b). The molecular sieve paper obtained in step a) is hot pressed into a corrugated shape.

[0035] c) The corrugated molecular sieve paper obtained in step b) and the molecular sieve paper obtained in step a) are alternately stacked or rolled into a honeycomb body, and then baked.

[0036] d) Place the molecular sieve honeycomb body obtained in step c) in a closed container, and then pass nitrogen and SiCL at a temperature of 247℃-500℃ into the container 4 A mixture of gases or water vapor with a temperature of 600°C-900°C, the introduced gas will chemic...

Example Embodiment

[0042] Example 1

[0043] a) The Y-type zeolite molecular sieve with a diameter of 1 micron is made into sub-sieve paper by the casting method;

[0044] b). The Y-type zeolite molecular sieve paper obtained in step a) is hot pressed into a corrugated shape;

[0045] c). The corrugated Y-type zeolite molecular sieve paper obtained in step b) and the Y-type zeolite molecular sieve paper obtained in step a) are alternately stacked or rolled into figure 1 , figure 2 The honeycomb body shown is then baked;

[0046] d). Place the honeycomb obtained in step c) in a closed container, and then pass nitrogen and SiCL at 247°C into the container 4 A mixture of gases, which will chemically react with the molecular sieve on the molecular sieve honeycomb;

[0047] e) After maintaining step d) for 4 hours, stop passing the reaction gas into the container, and pass nitrogen gas at a temperature of 80° C. into the container to discharge the remaining reaction gas in the container;

[0048] f) Take out ...

Example Embodiment

[0050] Example 2

[0051] a) The BETA molecular sieve with a diameter of 3 microns is made into sub-sieve paper by the coating method;

[0052] b). The molecular sieve paper obtained in step a) is hot pressed into a corrugated shape;

[0053] c). The corrugated molecular sieve paper obtained in step b) and the molecular sieve paper obtained in step a) are alternately stacked or rolled into figure 1 , figure 2 The honeycomb body shown is then baked;

[0054] d). Place the honeycomb body obtained in step c) in a closed container, and heat the honeycomb body to 600°C, and then pass water vapor at 600°C into the container, which will interact with the molecular sieve on the molecular sieve honeycomb. A chemical reaction occurred;

[0055] e) After maintaining step d) for 6 hours, stop passing the reaction gas into the container, and pass nitrogen at a temperature of 100°C into the container to discharge the remaining reaction gas in the container, and then pass the normal temperature nit...

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Abstract

The invention discloses a method for preparing an organic solvent adsorbing material. The method comprises the following steps of: manufacturing molecular sieve paper; thermally pressing the molecular sieve paper into corrugated molecular sieve paper; preparing the molecular sieve paper into a honeycomb; performing a chemical reaction on the molecular sieve honeycomb and a mixed gas of nitrogen and SiCl4 gas or water vapor in an airtight container; exhausting residual reaction gas; repeatedly cleaning the molecular sieve honeycomb to remove a solid reaction product on the molecular sieve honeycomb and washing the molecular sieve honeycomb with acid; and continuing to perform a chemical reaction on the molecular sieve honeycomb and the mixed gas of nitrogen and SiCl4 gas or water vapor in the airtight container. The adsorbing material prepared by the method has a high and uniform ratio of silicate to aluminum, so the adsorbing material has excellent organic solvent adsorbing performance and can be widely used for adsorbing and separating an organic solvent from the air or adsorbing and separating the organic solvent in water which contains the organic solvent.

Description

technical field [0001] The invention relates to a preparation method of an organic solvent adsorption material, which is mainly used for absorbing and separating organic solvents from air, or for absorbing and separating organic solvents from water containing organic solvents. Background technique [0002] A large number of scientific research data and engineering application examples have proved that molecular sieves with a high silicon-aluminum ratio have good adsorption capacity for organic solvents. At present, people often use the gas phase method to dealuminate and supplement silicon to obtain molecular sieves with high silicon-aluminum ratio, that is, to use conventional molecular sieves, such as Y-type molecular sieves, BETA molecular sieves, mordenite molecular sieves or ZSM5, etc., at a temperature of 247°C-500°C. Silicon chloride (SiCl 4 ) gas undergoes a chemical reaction. Domestic patent z101115612.0 and application number 200610083440.3 are used to manufactur...

Claims

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Application Information

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IPC IPC(8): B01J20/16B01J20/30B01D53/04C02F1/28C02F1/58C02F101/30
Inventor 马军
Owner 马军
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