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Hollow fiber ceramic membrane and preparation method thereof

A ceramic membrane and fiber technology, applied in the field of high filtration flux hollow fiber ceramic membrane and its preparation, can solve the problems of large equipment investment, complex process, difficult industrialization, etc., and achieve the effect of low cost and high filtration flux

Inactive Publication Date: 2012-06-27
THE THIRD XIANGYA HOSPITAL OF CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a hollow fiber ceramic membrane with high filtration flux, which not only has high filtration flux, but also has a simple preparation method and low cost; Complicated and difficult to industrialize

Method used

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  • Hollow fiber ceramic membrane and preparation method thereof
  • Hollow fiber ceramic membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A. Weigh 4000 grams of aluminum hydroxide, 2000 grams of ash clay, 1000 grams of albite, 1000 grams of dolomite, 1000 grams of powdery borosilicate glass, 700 grams of carboxymethyl cellulose and 300 grams of glycerin in proportion Ask for ingredients;

[0036] B. Add the above-mentioned ceramic powder into a ball mill for ball milling for 4h, material: ball stone: water=1:2:1, and remove iron after passing through a 250 mesh sieve to obtain 20000 grams of ceramic slurry;

[0037] C, dehydrating the ceramic slurry prepared in the above step B through a mud press (TCYL hydraulic mud press) to obtain 11900 grams of mud cake, so that the mass content of water is 14%;

[0038] D, the mud cake of step C is added into the mud refining machine to carry out vacuum mud refining, and stale for 48h, obtain stale mud section 11900 grams, the mud refining machine is existing equipment (LN-65L vertical vacuum mud refining machine);

[0039] E. Put the stale mud section obtained in s...

Embodiment 2

[0043] A. Weigh 6000 grams of 200 mesh aluminum hydroxide, 1000 grams of 400 mesh ash clay, 500 grams of 400 mesh albite, 500 grams of 400 mesh dolomite, 1000 grams of 400 mesh powdery borosilicate glass, carboxymethyl 700 grams of cellulose and 300 grams of glycerin require ingredients in proportion;

[0044] B. Add the above-mentioned ceramic powder into a ball mill for ball milling for 4 hours, material: ball stone: water=1:2:1, and remove iron after passing through a 300-mesh sieve to obtain 20,000 grams of ceramic slurry;

[0045] C. Dehydrating the ceramic slurry prepared in the above step B through a mud press (TCYL hydraulic mud press) to obtain 11,500 grams of mud cake; the mass content of water is 17%;

[0046] D, the mud cake of step C is added into the mud refining machine to carry out vacuum mud refining, and stale for 60h to obtain 11500 grams of stale mud section, and the mud refining machine is an existing equipment (LN-65L vertical vacuum mud refining machine)...

Embodiment 3

[0051] A. Weigh 8000 grams of 400 mesh aluminum hydroxide, 1000 grams of 600 mesh ash clay, 100 grams of 600 mesh albite, 100 grams of 600 mesh dolomite, 600 grams of 400 mesh powdery borosilicate glass, carboxymethyl 100 grams of cellulose and 100 grams of glycerin require ingredients in proportion;

[0052] B. Add the above-mentioned ceramic powder into a ball mill for ball milling for 4h, material: ball stone: water=1:2:1, and remove iron after passing through a 250 mesh sieve to obtain 20000 grams of ceramic slurry;

[0053] C, dehydrating the ceramic slurry prepared in the above step B through a mud press (TCYL hydraulic mud press) to obtain 11900 grams of mud cake; the mass content of water is 20%;

[0054] D, the mud cake of step C is added into the mud refining machine to carry out vacuum mud refining, and stale for 72h to obtain 11900 grams of stale mud section, and the mud refining machine is an existing equipment (LN-65L vertical vacuum mud refining machine);

[00...

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Abstract

The invention belongs to the technical field of material preparation, and provides a hollow fiber ceramic membrane with high filtering flux and a preparation method thereof. The hollow fiber ceramic membrane comprises the following components in parts by weight: 40-80 parts of powdery aluminum hydrate, 10-20 parts of powdery soft refractory ball clay, 1-10 parts of powdery albite, 1-10 parts of powdery dolomite, 6-10 parts of powdery borosilicate glass powder, 1-7 parts of carboxymethyl cellulose and 1-3 parts of glycerin, and is prepared through burdening, ball milling, mud squeezing and dehydration, vacuum pressing, extrusion molding and sintering. Preferably, the outer diameter of the hollow fiber ceramic membrane with high filtering flux is 3-6 millimeters, the inner diameter is 1-2 millimeters, and the length is 100-1,000 millimeters; and the porosity factor is 50-56 percent, the pure water flux is 10,000-12,500 L / m<2>.h.Mpa, and the bending strength is 35-85 MPa, which are 3-5 times that of an ordinary hollow fiber ceramic membrane.

Description

technical field [0001] The invention relates to the technical field of material preparation, in particular to a hollow fiber ceramic membrane with high filtration flux and a preparation method thereof. Background technique [0002] Ceramic membrane is a kind of inorganic membrane. Since the industrial production began in the 1990s, it has been widely used in environmental engineering, pharmaceutical engineering, biological engineering, food and beverage industry, textile printing and dyeing industry, chemical industry, petrochemical industry, and metallurgy industry. and other fields. The ceramic membrane is made of materials such as zirconia, alumina, titania and silicon oxide, and has an asymmetrically distributed porous structure. The pore size of the membrane covers the range of microfiltration, ultrafiltration and nanofiltration. The fluid separation process of ceramic membranes is in the form of "cross-flow filtration". Compared with organic membranes and other inorg...

Claims

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Application Information

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IPC IPC(8): C04B38/00
Inventor 伍协
Owner THE THIRD XIANGYA HOSPITAL OF CENT SOUTH UNIV
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