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Filtering sorbent material, its preparation method and its application

A technology of adsorbent and filter element, which is applied in the field of filter adsorbent material and its preparation, can solve the problems of decreased filtration speed, increased production cost, shortened filtration cycle, etc., and achieves increased surface area, improved practicability and stability, and easy operation simple effect

Active Publication Date: 2012-02-08
安徽指南针科创园发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem in the application of this filtration technology is: in order to achieve high-efficiency adsorption, powdered silica gel and PVPP are usually relatively fine, but too fine silica gel and PVPP will reduce the filtration speed, and the reduction of filtration speed will shorten the filtration cycle. Increased production costs
The disadvantage of the prior art is that no matter what the combination means, it needs to combine at least one filter component and at least one adsorption component in order to achieve the technical effect of a composite filter adsorbent with excellent adsorption and filtration effects

Method used

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  • Filtering sorbent material, its preparation method and its application
  • Filtering sorbent material, its preparation method and its application
  • Filtering sorbent material, its preparation method and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0065] 70 grams of #10 diatomaceous earth and 140 grams of #300 diatomaceous earth and 900 grams of water were added to a 2000 ml reaction kettle. NaOH was added to adjust the pH to 12.3. Alkali modification was performed at 210°C for 1 hour, and then the temperature was lowered to 38°C. Add 450 g of water and add H 2 SO 4 Adjust the pH to 7.2 and stir for 20 minutes. Gained pulp is filtered, washed and filtered 3 times, each time with 850 grams of water. The resulting filter cake was dried at 230°C to <3% moisture. Then crushed to the final product.

[0066] The obtained product is pre-coated on the filter membrane device; then a part of the product is added to the beer with cooling turbidity to form a mixed fluid, and the mixed fluid flows through the coated filter membrane device to obtain clarified beer; and cooling Protein and other insoluble components produced by sexual turbidity are retained by the filter membrane device.

[0067] The filtration properties of th...

Embodiment 2

[0077] 70 grams of #10 diatomaceous earth and 140 grams of #300 diatomaceous earth and 900 grams of water were added to a 2000 ml reaction kettle. NaOH was added to adjust the pH to 12.6. Alkali modification was performed at 155°C for 45 minutes and then cooled to 35°C. Add 450 g of water and add H 2 SO 4 Adjust the pH to 7.7 and stir for 20 minutes. Gained pulp is filtered, washed and filtered 3 times, each time with 850 grams of water. The resulting filter cake was dried at 230°C to <3% moisture. Then crush to get the final product. The filtration properties of the resulting product for beer compared with mechanical mixtures using diatomaceous earth and silica gel are shown in Tables 3 and 4.

[0078] The obtained product is pre-coated on the filter screen element; then a part of the product is added to the beer with cooling turbidity to form a mixed fluid, and the mixed fluid flows through the coated filter screen element to obtain a clear beer; while cooling Protein...

Embodiment 3

[0084] 100 grams of #10 diatomaceous earth and 450 reverse osmosis water were added to the reaction kettle. NaOH was added to adjust the pH to 12.2. Carry out alkali modification at 170°C for 45 minutes, add 1100 grams of water and cool down to 55°C. Then add H 2 SO 4 Adjust the pH to 7.4 and react for 20 minutes. Then add 100 grams of #300 diatomaceous earth and stir for 15 minutes. The obtained pulp is filtered, washed and filtered 3 times, each time with 1000 grams of reverse osmosis water. The resulting filter cake was dried at 230°C to <3% moisture. Then crushed to the average particle size (D50) <30 microns. The filtration properties of the resulting product for beer compared with mechanical mixtures using diatomaceous earth and silica gel are shown in Tables 5 and 6.

[0085] The obtained product is pre-coated on the filter element; then a part of the product is added to the beer with cooling turbidity to form a mixed fluid, and the mixed fluid flows through the ...

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Abstract

The invention relates to a filtering sorbent material, a preparation method and an application, concretely relates to a filtering sorbent material obtained by taking a filter aid material as a main raw material for modifying, which belongs to the filtering aid technical field. According to the invention, the filter aid materials such as diatomite and the like are subjected to an acid-base surface modification, washed, dried and crushed to obtain the final product. The filtering adsorbent are used for modifying the filtering ingredients in the prior art without requiring situ adsorption or chemical combination on the filtering ingredients by using silicate like silica gel as an adsorbent, the component usage enables strong controllability and the operation is simple. The part for realizing filtering function and the part for realizing adsorption function are congenitally combined together, thereby the practicality and stability are substantially enhanced.

Description

technical field [0001] The invention relates to a filter adsorbent material and its preparation method and application, in particular to a filter adsorbent material obtained by modifying a filter-aid material as a main raw material and its preparation method and application method, belonging to the technical field of filter aid . Background technique [0002] Filtration is a broad category. When filtering fluid substances, the first choice is to select a filter element, such as commonly used filter paper, filter membrane and other elements, to filter the substances in the retained fluid that cannot pass through the filter element. Taking membrane technology as an example, if it is classified by pore size, the pore size of the membrane can be as small as a few tenths of a nanometer to several microns. Because the intercepted substances in the fluid have a certain molecular size, membrane technology can filter almost all insoluble and soluble substances in theory. However, ...

Claims

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Application Information

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IPC IPC(8): B01J20/14B01J20/30B01D15/08C12H1/056C12H1/048
Inventor 马军涛闫廷华薄启恒魏延亮
Owner 安徽指南针科创园发展有限公司
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