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Ceramic material for floor tile and preparation method thereof

A technology for floor tiles and ceramics, which is applied in the field of building ceramic materials to achieve the effects of low firing temperature, short cycle and no radioactive pollution

Inactive Publication Date: 2011-09-07
武汉中理环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are almost no patents on mixing phosphogypsum and red mud as ceramic raw materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Ingredients:

[0033] The ratio of raw materials is calculated according to the following weight percentages: phosphogypsum 19.5%, red mud 13%, feldspar 7%, kaolin 17.5%, dispersant (sodium hexametaphosphate) 0.5%, quartz 8%, water 34.5%.

[0034] 2. Mixing: Mix the ingredients into a slurry to make it fluid for 35 seconds, which meets the requirements of the national standard QB / T 1545-1992.

[0035] 3. Mud treatment: Spray dry the mixed mud.

[0036] 4. Forming: The dried material is pressed and formed to obtain the green body of the ceramic floor tile.

[0037] 5. Sintering: Sinter the green body at 1200°C for 60 minutes to obtain ceramic floor tiles.

[0038] After testing, the water absorption rate of ceramic floor tiles is 7.5%, and the compressive strength is 650N, both of which meet the requirements of the national standard GB / T 4100-2006.

Embodiment 2

[0040] 1. Ingredients:

[0041] The ratio of raw materials is as follows: phosphogypsum 19.5%, red mud 13%, feldspar 7%, kaolin 17.5%, dispersant sodium tripolyphosphate 0.75%, quartz 8%, water 34.5%.

[0042] 2. Mixing: Mix the ingredients into a slurry to make it fluid for 38 seconds, which meets the requirements of the national standard QB / T 1545-1992.

[0043] 3. Other steps are the same as in Example 1.

[0044] After testing, the water absorption rate of ceramic floor tiles is 8%, and the compressive strength is 640N, both of which meet the requirements of the national standard GB / T 4100-2006.

Embodiment 3

[0046] 1. Ingredients:

[0047] The ratio of raw materials is as follows: phosphogypsum 19.5%, red mud 13%, feldspar 7%, kaolin 17.5%, dispersant sodium silicate 1%, quartz 8%, water 34%.

[0048] 2. Mixing: Mix the ingredients into a slurry to make it fluid for 37 seconds, which meets the requirements of the national standard QB / T 1545-1992.

[0049] 3. Other steps are the same as in Example 1.

[0050] After testing, the water absorption rate of ceramic floor tiles is 9%, and the compressive strength is 630N, both of which meet the requirements of the national standard GB / T 4100-2006.

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Abstract

The invention relates to a ceramic material for floor tiles and a method for preparing a ceramic material for floor tiles by use of industrial solid wastes such as phosphogypsum and red mud. The major raw materials of the ceramic material for floor tiles are as follows (by weight): 14 to 28 percent of phosphogypsum, 14 to 28 percent of red mud, 9 to 23 percent of feldspar, 20 to 35 percent of kaolin, and 11 to 28 percent of quartz. The preparation method of the ceramic material for floor tiles comprises the following steps of: preparing ceramic slurry, performing spray-drying, preparing blanks and burning final products. The method provided by the invention can effectively utilize the solid wastes to reduce environmental pollution due to industrial solid wastes, and is significant in clayresource conservation and production cost reduction in the conventional wall brick and floor tile industries in China. Besides, the ceramic products made from the ceramic material have the advantagesof high strength and low sintering temperature.

Description

technical field [0001] The invention relates to the field of building ceramic materials, in particular to a method for preparing floor tile ceramics by utilizing common industrial waste phosphogypsum and red mud. Background technique [0002] With the rapid development of high-concentration phosphorus compound fertilizer, phosphoric acid and detergent industries, phosphogypsum waste residues have increased sharply, and about 5 tons of phosphogypsum are discharged for every ton of phosphoric acid produced. At present, the world's annual emission of phosphogypsum has reached 280 million tons, and my country has exceeded 50 million tons, accounting for more than 70% of industrial by-product gypsum. Among them, 27.7% of phosphogypsum is used to make cement, produce chemical raw materials and gypsum building materials, use it as roadbed or industrial filler, improve soil, and extract rare earth elements from it. Because phosphogypsum contains harmful substances such as phosphoru...

Claims

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Application Information

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IPC IPC(8): C04B33/00C04B33/132C04B33/138
CPCY02P40/60
Inventor 吉晓莉王浩万伟伟力国民
Owner 武汉中理环保科技有限公司
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