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Active modified zeolite composite adsorption material and preparation method thereof

A composite adsorption material and modified zeolite technology, which are applied in the field of active modified zeolite composite adsorption material and its preparation, can solve the problems of difficulty in forming a particle structure, long equilibrium time, slow mass transfer rate, etc., and achieve enhanced adsorption and cost. Low, long service life effect

Inactive Publication Date: 2015-09-02
ANHUI XINKUN PURIFICATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chitosan is a polymer substance with a linear structure. It will dissolve in an acidic solution, has poor stability, and is difficult to form a granular structure. When used in the mass transfer separation process, the equilibrium time is long and the mass transfer rate is slow. It is used in a fixed bed as a Adsorbent applications are subject to certain limitations

Method used

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Experimental program
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Embodiment Construction

[0012] The present invention will be described in detail below through specific examples.

[0013] An active modified zeolite composite adsorption material and its preparation method, made of the following raw materials in parts by weight (kg): zeolite 45, aluminum sol 3, polyvinylpyrrolidone 0.5, chitosan 18, cationic polyacrylamide 0.2 , cork 10, fly ash 16, appropriate amount of deionized water;

[0014] An active modified zeolite composite adsorption material and a preparation method thereof of the present invention are made by the following specific steps:

[0015] (1) Soak the zeolite in 0.1mol / l hydrochloric acid solution for 24 hours, filter to remove impurities, wash the zeolite with deionized water until neutral, dry and pulverize it, mix it with polyvinylpyrrolidone and heat it to 450°C to obtain a porous zeolite, and then Add porous zeolite, cationic polyacrylamide and distilled water to an ultrasonic oscillator for 30 minutes of ultrasonication, and obtain mo...

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Abstract

The invention discloses an active modified zeolite composite adsorption material and a preparation method thereof. The active modified zeolite composite adsorption material is characterized by being prepared from the following raw materials in parts by weight: 30-50 parts of zeolite, 3-4 parts of alumina sol, 0.4-1 part of polyvinylpyrrolidone, 15-20 parts of deacetylchitin, 0.1-0.3 part of cationic polyacrylamide, 8-12 parts of cork, 14-17 parts of coal ash and a proper amount of deionized water. The adsorbent has good mechanical stability and is long in service life, the preparation method is easy to operate and does not generate secondary pollution, the cost is low, so that the material and the preparation method are worthy of popularization.

Description

technical field [0001] The invention relates to the field of adsorbents, in particular to an active modified zeolite composite adsorption material and a preparation method thereof. Background technique [0002] Zeolite is a porous skeleton aluminosilicate molecular sieve, which can be used as ion exchanger, adsorption separation agent, catalyst, etc. The pore size of micropores in the zeolite framework is very uniform due to the crystalline nature of the pores, and the internal pores can selectively adsorb molecules of different sizes. Zeolite is a kind of strong polar adsorbent, easy to polar molecules such as water molecules, due to its own silicon-alumina ratio and pore size, it is selective to different polar molecules, and there are metal cations that can be exchanged in the pores. Some specific molecules have special adsorption. In terms of waste gas treatment, zeolite can adsorb sulfur dioxide and nitrogen oxides in waste gas, but its adsorption capacity is low. Us...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/28B01J20/30
Inventor 黄平
Owner ANHUI XINKUN PURIFICATION EQUIP