A separation method for zeolite glass fiber composites

Abstract

This invention discloses a separation method for zeolite glass fiber composite materials, comprising the following steps: (1) Step one, preparing a suspension: cut several pieces of zeolite glass fiber composite materials of the same size, place them in an ultrasonic oscillator, add an appropriate amount of deionized water to cover the surface, turn on the oscillator switch and oscillate for 20-30 minutes to obtain a suspension of zeolite molecular sieve and glass fiber; (2) Step two, filtering glass fiber: filter the above suspension through a fine sieve to remove the glass fiber and obtain a suspension containing only molecular sieve; (3) Step three, high-speed centrifugation, the centrifuge tube shows stratification, the upper clear liquid is deionized water, and the lower layer is the molecular sieve to be purified; (4) Step four, drying and purification; The beneficial effect is that by adopting the method of first ultrasonic oscillation and then high-speed centrifugation, the zeolite molecular sieve is successfully separated and purified, realizing the restoration from finished product to raw material, which is of great significance for the study of molecular sieve performance.

Description

Technical Field

[0001] This invention relates to the field of zeolite glass fiber composite materials technology, and in particular to a separation method for zeolite glass fiber composite materials. Background Technology

[0002] The common method for separating zeolite-glass fiber composite materials is to scrape off the powder and then filter it through a sieve. This method is prone to scraping off the mixture of zeolite molecular sieve and glass fiber. Although it does not change the original physicochemical properties of zeolite, it introduces impurities, which affects the performance test and judgment of a single zeolite molecular sieve. In view of the above, it is necessary to improve the existing separation methods for zeolite glass fiber composites so that they can meet the current needs for the separation of zeolite glass fiber composites. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a separation method for zeolite glass fiber composite materials, comprising the following steps: (1) Step 1, preparation of suspension: cut several pieces of zeolite glass fiber composite material of the same size, place them in an ultrasonic oscillator, add an appropriate amount of deionized water to cover the surface, turn on the oscillator switch and oscillate for 20-30 minutes to obtain a suspension of zeolite molecular sieve and glass fiber. (2) Step 2, filtering glass fiber: The above suspension is filtered through a fine sieve to remove the glass fiber and obtain a suspension containing only molecular sieve. (3) Step 3, high-speed centrifugation: Stir the suspension obtained in step 2 evenly, distribute it equally into several centrifuge tubes, centrifuge at a speed of 1200-1500 r / min for 8-10 min and take it out. It was found that the centrifuge tubes were separated into layers. The upper layer of clear liquid was deionized water and the lower layer was the molecular sieve to be purified. (4) Step 4, drying and purification: pour out the supernatant from several centrifuge tubes, put them in an oven at 100-120℃ and dry for 8-10 hours, sort and collect the separated molecular sieves, filter them through a fine sieve, and finally obtain the purified zeolite molecular sieve.

[0004] As a further supplement to this technical solution, the cut size in step one is 5cm × 10cm.

[0005] As a further supplement to this technical solution, the fine screen is 100-120 mesh.

[0006] As a further supplement to this technical solution, step two requires repeated filtering 3-5 times.

[0007] As a further supplement to this technical solution, in step four, the material is filtered three times through a fine sieve.

[0008] Its beneficial effects are: (1) by adopting the method of first ultrasonic oscillation and then high-speed centrifugation, zeolite molecular sieves were successfully separated and purified, realizing the restoration from finished product to raw material, which is of great significance to the study of molecular sieve performance; (2) By using the method of the present invention, zeolite molecular sieves can be separated from finished zeolite glass fiber composite materials. The separation method is simple and efficient, providing an effective reference for the raw material separation of zeolite rotors in the industry. (3) The product separated by this method is abundant and of high purity, does not change the original physicochemical properties of the material, and does not affect the specific surface area and thermogravimetric properties of zeolite molecular sieves in subsequent studies. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of step one of the present invention; Figure 2 This is a schematic diagram of step two of the present invention; Figure 3 This is a schematic diagram of step three of the present invention; Figure 4 This is a schematic diagram of step four of the present invention. Detailed Implementation

[0010] The original design of this invention addresses the common method of separating zeolite-glass fiber composite materials by scraping off powder and then filtering it through a sieve. This method often results in the scraping off of a mixture of zeolite molecular sieve and glass fiber. Although the original physicochemical properties of the zeolite are not changed, impurities are introduced, affecting the performance testing and judgment of a single zeolite molecular sieve. This invention adopts a method of first ultrasonic oscillation followed by high-speed centrifugation, which can effectively separate the zeolite molecular sieve separately, avoiding the mixing of glass fiber. It provides a reliable separation method for reverse engineering of the performance of finished zeolite rotor molecular sieves.

[0011] To facilitate a clearer understanding of this technical solution for those skilled in the art, the following will be described in conjunction with the appendix. Figure 1-4 The technical solution of the present invention is described in detail below: (1) Step 1, preparation of suspension: Cut several pieces of zeolite-glass fiber composite material of the same size (5cm×10cm), place them in an ultrasonic oscillator, add an appropriate amount of deionized water to cover the surface, turn on the oscillator and oscillate for 20-30 minutes, preferably 30 minutes, to obtain a suspension of zeolite molecular sieve and glass fiber mixture, such as Figure 1 As shown.

[0012] (2) Step two, filtering glass fiber: The above suspension is filtered through a 100-120 mesh fine sieve. Preferably, it is filtered repeatedly 5 times through a 120 mesh fine sieve to remove the glass fiber, resulting in a suspension containing only molecular sieves, such as... Figure 2 As shown.

[0013] (3) Step 3, high-speed centrifugation: Stir the suspension obtained in step 2 evenly, distribute it equally into several centrifuge tubes, and centrifuge at 1200-1500 r / min for 8-10 min. Preferably, centrifuge at 1500 r / min for 8 min. It is found that the centrifuge tubes show stratification. The upper clear liquid is deionized water, and the lower layer is the molecular sieve to be purified. Figure 3 As shown.

[0014] (4) Step four, drying and purification: Pour out the supernatant from several centrifuge tubes and dry them in an oven at 100-120℃ for 8-10 hours. Preferably, dry them in an oven at 120℃ for 8 hours. Organize and collect the separated molecular sieves, and filter them three times through an 80-120 mesh fine sieve and three times through a 120 mesh fine sieve to finally obtain the purified zeolite molecular sieve, such as... Figure 4 As shown.

[0015] The following are experimental data for ultrasonic separation, manual scraping, and natural detachment: In summary, (1) by adopting the method of first ultrasonic oscillation and then high-speed centrifugation, zeolite molecular sieves were successfully separated and purified, realizing the restoration from finished product to raw material, which is of great significance to the study of molecular sieve performance.

[0016] (2) By using the method of the present invention, zeolite molecular sieves can be separated from finished zeolite glass fiber composite materials. The separation method is simple and efficient, providing an effective reference for the raw material separation of zeolite rotors in the industry.

[0017] (3) The product separated by this method is abundant and of high purity, does not change the original physicochemical properties of the material, and does not affect the specific surface area and thermogravimetric properties of zeolite molecular sieves in subsequent studies.

[0018] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A separation method for zeolite glass fiber composite materials, characterized in that, Includes the following steps: (1) Step 1, preparation of suspension: cut several pieces of zeolite glass fiber composite material of the same size, place them in an ultrasonic oscillator, add an appropriate amount of deionized water to cover the surface, turn on the oscillator switch and oscillate for 20-30 minutes to obtain a suspension of zeolite molecular sieve and glass fiber. (2) Step 2, filtering glass fiber: The above suspension is filtered through a fine sieve to remove the glass fiber and obtain a suspension containing only molecular sieve. (3) Step 3, high-speed centrifugation: Stir the suspension obtained in step 2 evenly, distribute it equally into several centrifuge tubes, centrifuge at a speed of 1200-1500 r / min for 8-10 min and take it out. It was found that the centrifuge tubes were separated into layers. The upper layer of clear liquid was deionized water and the lower layer was the molecular sieve to be purified. (4) Step 4, drying and purification: pour out the supernatant from several centrifuge tubes, put them in an oven at 100-120℃ and dry for 8-10 hours, sort and collect the separated molecular sieves, filter them through a fine sieve, and finally obtain the purified zeolite molecular sieve.

2. The separation method for zeolite glass fiber composite materials according to claim 1, characterized in that, In step one, the cut-off size is 5cm × 10cm.

3. The separation method for zeolite glass fiber composite materials according to claim 1, characterized in that, The fine sieve is 100-120 mesh.

4. The separation method for zeolite glass fiber composite materials according to claim 1, characterized in that, Step two requires repeated filtering 3-5 times.

5. The separation method for zeolite glass fiber composite materials according to claim 1, characterized in that, In step four, the filter is passed through a fine sieve three times.

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