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A kind of phosphogypsum base material imitation marble floor tile and preparation method thereof

A technology of imitating marble and phosphogypsum is applied in the field of imitating marble floor tiles with phosphogypsum base material and its preparation, so as to shorten the aging time, realize sustainable development and protect the environment.

Inactive Publication Date: 2017-01-11
GUIZHOU KAILIN PHOSPHOGYPSUM INTEGRATION UTILIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the object of the present invention is to provide a phosphogypsum-based imitation marble floor tile with a reasonable formula and simple preparation process and a preparation method thereof, so as to solve the current situation that the existing phosphogypsum is piled up like a mountain, and recycle the phosphogypsum into resources Utilization, to achieve greater economic and social benefits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] raw material:

[0040] Phosphogypsum 50kg, fiber 0.1kg, yellow phosphorus slag 20kg and quicklime 1kg.

[0041] Preparation:

[0042] Mix yellow phosphorus slag with phosphogypsum, stir and react for 6 hours in a mixer with a temperature of 90°C and a stirring speed of 3000r / min, and then grind it into a fine powder of 80 meshes to obtain phosphorus slag powder; add fiber and quicklime to the phosphorus slag powder , adjust the temperature of the mixer to 60°C, stir for 2 hours at a stirring speed of 2500r / min, and then naturally age for 10 days to obtain a mixed material; add water with 10% weight of the mixed material to the mixed material and mix well, then pour it into the mold , obtain the formed phosphogypsum substrate; place the phosphogypsum substrate in a steam curing room with a steam temperature of 80°C and a pressure of 0.1MPa for curing treatment for 20 hours; after the phosphogypsum substrate is dried to a moisture content of 3%, , and then treat the sur...

Embodiment 2

[0044] raw material:

[0045] Phosphogypsum 80kg, fiber 2kg, yellow phosphorus slag 40kg and quicklime 8kg.

[0046] Preparation:

[0047] Mix yellow phosphorus slag with phosphogypsum, stir and react for 6 hours in a mixer with a temperature of 100°C and a stirring speed of 3500r / min, and then grind it into a fine powder of 100 mesh to obtain phosphorus slag powder; add fiber and quicklime to the phosphorus slag powder , adjust the temperature of the mixer to 70°C, stir at a stirring speed of 3500r / min for 1h, and then naturally age for 10 days to obtain the mixed material; add water with 15% weight of the mixed material to the mixed material and mix well, then pour it into the mold In the process, the formed phosphogypsum substrate was obtained; the phosphogypsum substrate was cured in a steam curing room with a steam temperature of 90°C and a pressure of 0.3MPa for 16 hours; the phosphogypsum substrate was dried until the moisture content was 3-5 %, then treat the surface...

Embodiment 3

[0049] raw material:

[0050] Phosphogypsum 55kg, fiber 0.5kg, yellow phosphorus slag 26kg and quicklime 2kg.

[0051] Preparation:

[0052] Mix yellow phosphorus slag with phosphogypsum, stir and react for 5 hours in a mixer with a temperature of 92°C and a stirring speed of 3100r / min, and then grind it into a fine powder of 80 meshes to obtain phosphorus slag powder; add fiber and quicklime to the phosphorus slag powder , adjust the temperature of the mixer to 62°C, stir at a stirring speed of 2600r / min for 1.2h, then naturally age for 3 days to obtain a mixed material; In the mold, the formed phosphogypsum base material is obtained; the phosphogypsum base material is placed in a steam curing room with a steam temperature of 82 ° C and a pressure of 0.2 MPa for curing treatment for 17 hours; the phosphogypsum base material is dried until the moisture content is 3 ~ After 5%, the surface is treated to make the surface flatness 2mm, and the primer is sprayed on the surface w...

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Abstract

The invention discloses a phosphogypsum base material marble-imitated floor tile and a preparation method thereof. In parts by weight, the floor tile is prepared from 50-80 parts of phosphogypsum, 20-40 parts of yellow phosphorus slag, 0.1-2 parts of fiber and 1-8 parts of quicklime. Phosphorus slag powder which is good in fluidity and uniform in particle can be prepared by mixing the yellow phosphorus slag with the phosphogypsum, stirred and reacted at 90-100 DEG C, and then ground. The quicklime, the fiber and the phosphorus slag powder are mixed under a certain temperature and a stirring speed and are subjected to aging treatment, so as to significantly shorten aging time; through a hydration reaction, the phosphorus slag powder can generate a main product, namely ettringite crystal; the intensity and the water resistance of the phosphogypsum base material marble-imitated floor tile are significantly improved; and the content of soluble impurities in the phosphogypsum is reduced and the coagulation property of the phosphogypsum base material marble-imitated floor tile is greatly improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a phosphogypsum-based imitation marble floor tile and a preparation method thereof. Background technique [0002] In the phosphoric acid production process, every ton of P produced 2 o 5 Five tons of phosphogypsum are produced by-product, and the annual by-production of phosphogypsum by medium-sized phosphoric acid production enterprises is about 3.5 million tons. So much phosphogypsum not only requires a large slag dump, but also causes water pollution. At present, the most commonly used phosphogypsum treatment methods are as follows: [0003] The first method: Phosphoric acid paste is used to backfill the pit. According to statistics, when phosphogypsum is not used to backfill the mine shaft, the filling cost of the mine shaft accounts for 1 / 3 of the mining, and the filling material accounts for 80% of the filling cost. If phosphogypsum is used to fill the mine s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B18/14C04B41/71B28B11/24
CPCY02W30/91
Inventor 向前勇杨永彬杨步雷王伟刘小成胡新菊李泽钢
Owner GUIZHOU KAILIN PHOSPHOGYPSUM INTEGRATION UTILIZATION
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