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Multifunctional adsorbent and preparation method thereof

An adsorbent and multifunctional technology, applied in the field of multifunctional adsorbents and their preparation, can solve the problems of difficulty in forming a particle structure, slow mass transfer rate, long equilibrium time, etc., and achieve increased pore volume, low cost, The effect of strong adsorption capacity

Inactive Publication Date: 2015-09-02
ANHUI XINKUN PURIFICATION EQUIP
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  • Abstract
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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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Embodiment Construction

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

[0013] A multi-purpose adsorbent and its preparation method, made of the following raw materials in parts by weight (kg): zeolite 46, aluminum sol 3, polyvinylpyrrolidone 0.7, chitosan 18, cationic polyacrylamide 0.2, White clay 5, mullite 12, activated carbon 7, appropriate amount of deionized water;

[0014] A kind of multifunctional adsorbent of the present invention and preparation method thereof, are made by 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 it is neutral, dry and pulverize it, mix it with polyvinylpyrrolidone and heat it to 500°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 modified zeolite after drying...

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Abstract

The invention discloses a multifunctional adsorbent and a preparation method thereof. The multifunctional adsorbent 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, 4-6 parts of carclazyte, 10-14 parts of mullite, 7-9 parts of activated carbon and a proper amount of deionized water. The adsorbent disclosed by the invention has good adsorption capacity, is good in circulating stability, low in cost, nontoxic and harmless, and can meet the industrial adsorption function.

Description

technical field [0001] The invention relates to the field of adsorbents, in particular to a multifunctional adsorbent 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. Using modification methods...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30B01D53/02
Inventor 黄平
Owner ANHUI XINKUN PURIFICATION EQUIP
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