Bamboo charcoal bentonite composite ceramic material and the preparation method of the same

A technology of composite ceramics and bentonite, applied to clay products, other household utensils, household utensils, etc., can solve the problems of high processing cost, complicated processing technology, complex composition, etc., and achieve many holes, simple processing technology and good dispersion Effect

Inactive Publication Date: 2017-03-08
HUZHOU TEACHERS COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its composition is complicated, the processing technology is complicated, and the processing cost is relatively high.

Method used

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  • Bamboo charcoal bentonite composite ceramic material and the preparation method of the same
  • Bamboo charcoal bentonite composite ceramic material and the preparation method of the same
  • Bamboo charcoal bentonite composite ceramic material and the preparation method of the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A bamboo charcoal bentonite composite ceramic material is prepared from the following raw materials in parts by weight: 1-9 parts of bamboo powder and 1-9 parts of bentonite. In the present embodiment, its proportioning is: 7 parts of bamboo powder, 3 parts of bentonite.

[0020] The preparation method of this bamboo charcoal bentonite composite ceramic material comprises the following steps:

[0021] (1) Bamboo powder was dried at 60-80°C for 1-2 hours, and passed through a 200-mesh sieve; the electron microscope image of bamboo powder is as follows: figure 1 shown.

[0022] (2) Dry the bentonite at 60-80°C for 1-2 hours, and pass through a 200-mesh sieve;

[0023] (3) the bamboo powder obtained after sieving and bentonite are mixed in a ratio of 7 parts by weight of bamboo powder and 3 parts by weight of bentonite to obtain raw material powder;

[0024] (4) Mix raw material powder and water in a weight ratio of 1:1.0-1.1, then ball mill to obtain a slurry, and plac...

Embodiment 2

[0043] A bamboo charcoal bentonite composite ceramic material is prepared from the following raw materials in parts by weight: 1-9 parts of bamboo powder and 1-9 parts of bentonite. In the present embodiment, its proportioning is: 8 parts of bamboo powder, 2 parts of bentonite.

[0044] Refer to Example 1 for preparation and experimental methods.

[0045] After testing, the performance parameters of the product prepared in this embodiment are as follows:

[0046] The specific surface area is greater than 200m 2 / g; compressive strength greater than 10.3Mpa; porosity greater than 70%, filtration rate greater than 35ml / hr.cm 2 (Water level drop 300mm). The effective removal rate of hexavalent chromium is between 98% and 100%.

[0047] Decreasing the proportion of bentonite and increasing the proportion of bamboo powder can increase the specific surface area of ​​ceramic materials, enhance the adsorption capacity, but reduce the strength.

Embodiment 3

[0049] A bamboo charcoal bentonite composite ceramic material is prepared from the following raw materials in parts by weight: 1-9 parts of bamboo powder and 1-9 parts of bentonite. In the present embodiment, its proportioning is: 4 parts of bamboo powder, 7 parts of bentonite.

[0050] Refer to Example 1 for preparation and experimental methods.

[0051] After testing, the performance parameters of the product prepared in this embodiment are as follows:

[0052] The specific surface area is greater than 80m 2 / g; compressive strength greater than 18.3Mpa; porosity greater than 50%, filtration rate greater than 30ml / hr.cm 2(Water level drop 300mm). The effective removal rate of hexavalent chromium is between 80% and 90%.

[0053] Increasing the proportion of bentonite and decreasing the proportion of bamboo powder will reduce the specific surface area of ​​ceramic materials, and the adsorption capacity will decrease slightly, but the compressive strength will increase.

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Abstract

The invention belongs to the technical field of bamboo charcoal ceramic processing and particularly relates to a bamboo charcoal bentonite composite ceramic material and the preparation method of the same. The bamboo charcoal bentonite composite ceramic material is prepared from the following parts by weight of raw materials: 1-9 parts of bamboo powder and 1-9 parts of bentonite. The preparation method comprises (1) a step of drying the bamboo powder at temperature between 60 DEG C and 80 DEG C for 1-2 hours and passing through a 200-mesh sieve, (2) a step of drying the bentonite at temperature between 60 DEG C and 80 DEG C for 1-2 hours and passing through a 200-mesh sieve, (3) a step of mixing the bamboo powder and bentonite obtained after screening according to the proportion of 1-9 parts by weight with bentonite according to the proportion of 1-9 parts by weight to obtain the raw material powder, (4) a step of utilizing ball milling after mixing the raw material powder with water to obtain a sizing agent, (5) a step of granulating and molding the sizing agent after stewing for curing, (6) a step of firing a green body and cooling to room temperature. The preparation process of the bamboo charcoal bentonite composite ceramic material has the advantages of being economic and environmental in protection, capable of obtaining the ceramic material of high porosity, large specific surface area and strong adsorption capacity.

Description

technical field [0001] The invention belongs to the technical field of bamboo charcoal ceramic processing, in particular to a bamboo charcoal bentonite composite ceramic material and a preparation method thereof. Background technique [0002] Bamboo charcoal is an excellent adsorption material, which has the advantages of many pores, large specific surface area, and strong adsorption capacity. Moreover, the raw material of bamboo charcoal, bamboo, has a short growth period and abundant sources, so that bamboo charcoal is widely used in water treatment and air filtration and other fields. The invention with the application number 201410500179.7 discloses a zero-valent iron-coated bamboo charcoal-based porous ceramsite and its preparation method and application. It uses α-Al2O3 powder as the main aggregate of ceramsite, and clay and bentonite as auxiliary aggregates. Bamboo chips after surface activation treatment are used as bamboo charcoal preparation materials and pore-form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/13C04B33/04C04B38/06C04B33/36C04B33/32
Inventor 李彬赵明星
Owner HUZHOU TEACHERS COLLEGE
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