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Multi-purpose zeolite particles and preparation method thereof

A multi-purpose, zeolite technology, applied in separation methods, chemical instruments and methods, other chemical processes, etc., can solve the problems of large differences in zeolite content, inconvenient use of raw ore, etc., and achieve low cost, rich mineral resources, and reduce environmental protection costs. Effect

Active Publication Date: 2012-12-05
陆志宏 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is mainly because the content of zeolite in raw zeolite ore varies greatly, and the use of raw ore is inconvenient, resulting in the current situation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] In the preparation method of the multi-purpose zeolite particles of the present invention, the roasting temperature should be selected at 500-650°C (600°C is especially preferred), which can not only meet the sintering requirements, but also ensure that the crystal structure of the zeolite is not destroyed, and at the same time have the effect of activation , during the roasting process, the binder (starch) in the particles also has an adsorption effect after carbonization. At the same time, these binders are also good pore-forming agents. Through roasting, the starch is fully oxidized and removed, which can add a lot to the zeolite particles. The surface pores and channels strengthen the function of zeolite particles. Zeolite is activated at 600°C, which can greatly improve the adsorption capacity.

[0030] The following is the ammonia nitrogen removal rate and sintering effect table of the zeolite particles roasted at different roasting temperatures:

[0031] ...

Embodiment 1

[0036] Embodiment 1: select clinoptilolite, the concrete method steps are as follows:

[0037] a) Crushing and processing the clinoptilolite ore into fine powder, the particle size D of the fine powder is not more than 124 μm, after weighing the weight value of the processed clinoptilolite ore powder, pour it into the material chamber of the mixer for processing;

[0038] b) Calculate the weight of 4% starch according to the weight value of the clinoptilolite mineral powder weighed above, weigh the starch according to the calculated value, first adjust it with water, and then use boiling water (hot water or hot water) to make a slurry Pasty;

[0039] c) start the mixer, pour the processed paste starch into it, and keep stirring until the two materials are evenly mixed with each other;

[0040] d) extrude the uniformly stirred raw material into strips, and cut into oval balls with a particle diameter of 6-8mm;

[0041] e) polishing and drying;

[0042] f) Putting it into a k...

Embodiment 2

[0044] Embodiment 2: select mordenite, the specific method steps are as follows:

[0045] a) Crushing and processing the mordenite ore into fine powder, the particle size D of the fine powder is not more than 124 μm, weighing the weight value of the processed mordenite ore powder, and pouring it into the material chamber of the mixer for processing;

[0046] b) Calculate the weight of 6% starch according to the weight value of the clinoptilolite mineral powder weighed above, weigh the starch according to the calculated value, first adjust it with water, and then use boiling water (hot water or hot water) to make a slurry Pasty;

[0047] c) start the mixer, pour the processed paste starch into it, and keep stirring until the two materials are evenly mixed with each other;

[0048] d) extrude the uniformly stirred raw material into strips, and cut into balls with a particle diameter of 6-8mm;

[0049] e) polishing and drying;

[0050] f) Putting it into a kiln for roasting, the...

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Abstract

The invention discloses multi-purpose zeolite particles and a preparation method thereof. In the method, spherical or elliptical particles are prepared by crushing natural zeolite ore containing not less than 70 percent of zeolite into fine powder with the grain size D of not more than 124mu m (124 to 200mu m can meet the requirement), and preparing starch slurry serving as an additive by using 1to 10 percent (preferably 4 to 6 percent) of starch. A titanium dioxide and zeolite mixed powder layer also can be further coated outside the prepared spherical particles, wherein the weight percentage ratio of the titanium dioxide to the zeolite is 1:(3-6) in the mixed powder layer; nano-scale titanium dioxide are used; and the zeolite powder is prepared by grinding zeolite ore and has the grainsize D of not more than 310mu m. The prepared finished particles are dried at the temperature of between 500 and 650 DEG C, sintered for 1.5 to 3 hours and cooled and sealed for storage. The invention provides a novel environment-friendly material and can provide a high-efficiency and convenient product for sewage treatment and air purification; and the cost of processing and manufacturing is lower and the use is safe.

Description

technical field [0001] The invention belongs to the technical field of preparation of environment-friendly materials, and in particular relates to a multipurpose zeolite particle and a preparation method thereof. Background technique [0002] Natural zeolite is an emerging material. As a natural porous material, zeolite has a large specific surface area and good ion exchange properties. It has a good effect in sewage treatment, air purification, and removal of heavy metals. There are also many studies on natural zeolites, and the characteristics and functions of zeolites have been widely recognized, but in actual use, zeolites are not widely used. Its reason is mainly because the zeolite content in the zeolite crude ore varies greatly, and the crude ore is inconvenient to use, resulting in the current situation. [0003] Decoration is the biggest pollution source that brings indoor pollution, which brings great harm to people's health. While enjoying the joy of a new home,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/16B01J20/30C02F1/28B01J21/06B01D53/86B01D53/72
Inventor 陆志宏郑致荣金武
Owner 陆志宏